RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy17476
(513 letters)
>gnl|CDD|198188 cd09934, SH2_Tec_family, Src homology 2 (SH2) domain found in
Tec-like proteins. The Tec protein tyrosine kinase is
the founding member of a family that includes Btk, Itk,
Bmx, and Txk. The members have a PH domain, a
zinc-binding motif, a SH3 domain, a SH2 domain, and a
protein kinase catalytic domain. Btk is involved in
B-cell receptor signaling with mutations in Btk
responsible for X-linked agammaglobulinemia (XLA) in
humans and X-linked immunodeficiency (xid) in mice. Itk
is involved in T-cell receptor signaling. Tec is
expressed in both T and B cells, and is thought to
function in activated and effector T lymphocytes to
induce the expression of genes regulated by NFAT
transcription factors. In general SH2 domains are
involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 104
Score = 152 bits (386), Expect = 1e-44
Identities = 77/155 (49%), Positives = 88/155 (56%), Gaps = 59/155 (38%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSSTKGLYTLSLYTKVPH-PHVKHYHIKQNSRG 315
WYVGDMSRQRAES+LKQEDKEGCFVVRNSSTKGLYT+SL+TKVP PHVKHYHIKQN+R
Sbjct: 8 WYVGDMSRQRAESLLKQEDKEGCFVVRNSSTKGLYTVSLFTKVPGSPHVKHYHIKQNARS 67
Query: 316 EFFLSEKHCCHSIPEVKDKEGCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHIKQNSRGEF 375
EF+L+EKHC +IPE + +YH
Sbjct: 68 EFYLAEKHCFETIPE-------------------------------LINYH--------- 87
Query: 376 FLSEKHCCHSIPEVVNYHRHNSGGLASRLKTSPCD 410
+HNSGGLA+RLK CD
Sbjct: 88 ------------------QHNSGGLATRLKYPVCD 104
>gnl|CDD|173637 cd05059, PTKc_Tec_like, Catalytic domain of Tec-like Protein
Tyrosine Kinases. Protein Tyrosine Kinase (PTK) family;
Tyrosine kinase expressed in hepatocellular carcinoma
(Tec) subfamily; catalytic (c) domain. The Tec subfamily
is composed of Tec, Btk, Bmx (Etk), Itk (Tsk, Emt), Rlk
(Txk), and similar proteins. The PTKc family is part of
a larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Tec kinases are
cytoplasmic (or nonreceptor) tyr kinases (nRTKs) with
similarity to Src kinases in that they contain Src
homology protein interaction domains (SH3, SH2)
N-terminal to the catalytic tyr kinase domain. Unlike
Src kinases, most Tec subfamily members (except Rlk)
also contain an N-terminal pleckstrin homology (PH)
domain, which binds the products of PI3K and allows
membrane recruitment and activation. In addition, some
members contain the Tec homology (TH) domain, which
contains proline-rich and zinc-binding regions. Tec
kinases form the second largest subfamily of nRTKs and
are expressed mainly by haematopoietic cells, although
Tec and Bmx are also found in endothelial cells. B-cells
express Btk and Tec, while T-cells express Itk, Txk, and
Tec. Collectively, Tec kinases are expressed in a
variety of myeloid cells such as mast cells, platelets,
macrophages, and dendritic cells. Each Tec kinase shows
a distinct cell-type pattern of expression. The function
of Tec kinases in lymphoid cells have been studied
extensively. They play important roles in the
development, differentiation, maturation, regulation,
survival, and function of B-cells and T-cells. Mutations
in Btk cause the severe B-cell immunodeficiency,
X-linked agammaglobulinaemia (XLA).
Length = 256
Score = 152 bits (385), Expect = 1e-42
Identities = 59/79 (74%), Positives = 67/79 (84%), Gaps = 2/79 (2%)
Query: 426 IDPAELMLLEELGSGQFGVVRRGKWRGSIDVA--MMKEGTMSEDDFIEEAKVMTRLQHQN 483
IDP+EL L+ELGSGQFGVV GKWRG IDVA M++EG MSEDDFIEEAKVM +L H N
Sbjct: 1 IDPSELTFLKELGSGQFGVVHLGKWRGKIDVAIKMIREGAMSEDDFIEEAKVMMKLSHPN 60
Query: 484 LVQLYGVCSKHRPIYIVTD 502
LVQLYGVC+K RPI+IVT+
Sbjct: 61 LVQLYGVCTKQRPIFIVTE 79
Score = 105 bits (263), Expect = 2e-25
Identities = 34/54 (62%), Positives = 43/54 (79%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
+V +Y+RFSSKSDVW++GVLMWEVF+ GKMPY R N+EVV+ V G L +PK
Sbjct: 171 EVFDYSRFSSKSDVWSFGVLMWEVFSEGKMPYERFSNSEVVESVSAGYRLYRPK 224
Score = 73.6 bits (181), Expect = 1e-14
Identities = 23/47 (48%), Positives = 29/47 (61%), Gaps = 2/47 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M +G LLNYLR + L LLDMC VC+ M YLE + +IHR+
Sbjct: 81 MANGCLLNYLRERKGKL--GTEWLLDMCSDVCEAMEYLESNGFIHRD 125
>gnl|CDD|173657 cd05113, PTKc_Btk_Bmx, Catalytic domain of the Protein Tyrosine
Kinases, Bruton's tyrosine kinase and Bone marrow kinase
on the X chromosome. Protein Tyrosine Kinase (PTK)
family; Bruton's tyrosine kinase (Btk) and Bone marrow
kinase on the X chromosome (Bmx); catalytic (c) domain.
The PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Btk and
Bmx (also named Etk) are members of the Tec subfamily of
proteins, which are cytoplasmic (or nonreceptor) tyr
kinases with similarity to Src kinases in that they
contain Src homology protein interaction domains (SH3,
SH2) N-terminal to the catalytic tyr kinase domain.
Unlike Src kinases, most Tec subfamily members (except
Rlk) also contain an N-terminal pleckstrin homology (PH)
domain, which binds the products of PI3K and allows
membrane recruitment and activation. In addition, Btk
contains the Tec homology (TH) domain with proline-rich
and zinc-binding regions. Tec kinases are expressed
mainly by haematopoietic cells. Btk is expressed in
B-cells, and a variety of myeloid cells including mast
cells, platelets, neutrophils, and dendrictic cells. It
interacts with a variety of partners, from cytosolic
proteins to nuclear transcription factors, suggesting a
diversity of functions. Stimulation of a diverse array
of cell surface receptors, including antigen engagement
of the B-cell receptor (BCR), leads to PH-mediated
membrane translocation of Btk and subsequent
phosphorylation by Src kinase and activation. Btk plays
an important role in the life cycle of B-cells including
their development, differentiation, proliferation,
survival, and apoptosis. Mutations in Btk cause the
primary immunodeficiency disease, X-linked
agammaglobulinaemia (XLA) in humans. Bmx is primarily
expressed in bone marrow and the arterial endothelium,
and plays an important role in ischemia-induced
angiogenesis. It facilitates arterial growth, capillary
formation, vessel maturation, and bone marrow-derived
endothelial progenitor cell mobilization.
Length = 256
Score = 129 bits (325), Expect = 4e-34
Identities = 56/79 (70%), Positives = 67/79 (84%), Gaps = 2/79 (2%)
Query: 426 IDPAELMLLEELGSGQFGVVRRGKWRGSIDVA--MMKEGTMSEDDFIEEAKVMTRLQHQN 483
IDP +L L+ELG+GQFGVV+ GKWRG DVA M+KEG+MSED+FIEEAKVM +L H+
Sbjct: 1 IDPKDLTFLKELGTGQFGVVKYGKWRGQYDVAIKMIKEGSMSEDEFIEEAKVMMKLSHEK 60
Query: 484 LVQLYGVCSKHRPIYIVTD 502
LVQLYGVC+K RPIYIVT+
Sbjct: 61 LVQLYGVCTKQRPIYIVTE 79
Score = 81.8 bits (202), Expect = 2e-17
Identities = 32/54 (59%), Positives = 44/54 (81%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
+VL Y++FSSKSDVWA+GVLMWEV++ GKMPY R N+E V++V +G+ L +P
Sbjct: 171 EVLLYSKFSSKSDVWAFGVLMWEVYSLGKMPYERFNNSETVEKVSQGLRLYRPH 224
Score = 52.6 bits (126), Expect = 1e-07
Identities = 24/47 (51%), Positives = 29/47 (61%), Gaps = 2/47 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M +G LLNYLR H LL+MC VC+GMAYLE +IHR+
Sbjct: 81 MSNGCLLNYLREHGKRF--QPSQLLEMCKDVCEGMAYLESKQFIHRD 125
>gnl|CDD|173658 cd05114, PTKc_Tec_Rlk, Catalytic domain of the Protein Tyrosine
Kinases, Tyrosine kinase expressed in hepatocellular
carcinoma and Resting lymphocyte kinase. Protein
Tyrosine Kinase (PTK) family; Tyrosine kinase expressed
in hepatocellular carcinoma (Tec) and Resting lymphocyte
kinase (Rlk); catalytic (c) domain. The PTKc family is
part of a larger superfamily, that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Tec and
Rlk (also named Txk) are members of the Tec subfamily of
proteins, which are cytoplasmic (or nonreceptor) tyr
kinases with similarity to Src kinases in that they
contain Src homology protein interaction domains (SH3,
SH2) N-terminal to the catalytic tyr kinase domain.
Unlike Src kinases, most Tec subfamily members (except
Rlk) also contain an N-terminal pleckstrin homology (PH)
domain, which binds the products of PI3K and allows
membrane recruitment and activation. Instead of PH, Rlk
contains an N-terminal cysteine-rich region. In addition
to PH, Tec also contains the Tec homology (TH) domain
with proline-rich and zinc-binding regions. Tec kinases
are expressed mainly by haematopoietic cells. Tec is
more widely-expressed than other Tec subfamily kinases.
It is found in endothelial cells, both B- and T-cells,
and a variety of myeloid cells including mast cells,
erythroid cells, platelets, macrophages and neutrophils.
Rlk is expressed in T-cells and mast cell lines. Tec and
Rlk are both key components of T-cell receptor (TCR)
signaling. They are important in TCR-stimulated
proliferation, IL-2 production and phopholipase C-gamma1
activation.
Length = 256
Score = 122 bits (307), Expect = 1e-31
Identities = 50/79 (63%), Positives = 63/79 (79%), Gaps = 2/79 (2%)
Query: 426 IDPAELMLLEELGSGQFGVVRRGKWRGSIDVAM--MKEGTMSEDDFIEEAKVMTRLQHQN 483
I+P+EL ++ELGSGQFGVV GKWR I VA+ + EG MSE+DFIEEAKVM +L H
Sbjct: 1 INPSELTFMKELGSGQFGVVHLGKWRAQIKVAIKAINEGAMSEEDFIEEAKVMMKLSHPK 60
Query: 484 LVQLYGVCSKHRPIYIVTD 502
LVQLYGVC++ +P+YIVT+
Sbjct: 61 LVQLYGVCTQQKPLYIVTE 79
Score = 78.7 bits (194), Expect = 2e-16
Identities = 31/54 (57%), Positives = 43/54 (79%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
+V N++++SSKSDVW++GVLMWEVFT GKMP+ + N EVV+ + RG L +PK
Sbjct: 171 EVFNFSKYSSKSDVWSFGVLMWEVFTEGKMPFEKKSNYEVVEMISRGFRLYRPK 224
Score = 61.0 bits (148), Expect = 2e-10
Identities = 24/47 (51%), Positives = 34/47 (72%), Gaps = 2/47 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M +G LLNYLR+ + L ++ LL MC VC+GM YLER+++IHR+
Sbjct: 81 MENGCLLNYLRQRQGKLSKDM--LLSMCQDVCEGMEYLERNSFIHRD 125
>gnl|CDD|173626 cd05034, PTKc_Src_like, Catalytic domain of Src kinase-like Protein
Tyrosine Kinases. Protein Tyrosine Kinase (PTK) family;
Src kinase subfamily; catalytic (c) domain. Src
subfamily members include Src, Lck, Hck, Blk, Lyn, Fgr,
Fyn, Yrk, and Yes. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
Src (or c-Src) proteins are cytoplasmic (or
non-receptor) tyr kinases which are anchored to the
plasma membrane. They contain an N-terminal SH4 domain
with a myristoylation site, followed by SH3 and SH2
domains, a tyr kinase domain, and a regulatory
C-terminal region containing a conserved tyr. They are
activated by autophosphorylation at the tyr kinase
domain, but are negatively regulated by phosphorylation
at the C-terminal tyr by Csk (C-terminal Src Kinase).
Src proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival, and
differentiation. They were identified as the first
proto-oncogene products, and they regulate cell
adhesion, invasion, and motility in cancer cells and
tumor vasculature, contributing to cancer progression
and metastasis. Src kinases are overexpressed in a
variety of human cancers, making them attractive targets
for therapy. They are also implicated in acute
inflammatory responses and osteoclast function. Src,
Fyn, Yes, and Yrk are widely expressed, while Blk, Lck,
Hck, Fgr, and Lyn show a limited expression pattern.
Length = 261
Score = 115 bits (289), Expect = 5e-29
Identities = 42/81 (51%), Positives = 56/81 (69%), Gaps = 2/81 (2%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRGSIDVAM--MKEGTMSEDDFIEEAKVMTRLQH 481
WEI L L +LG+GQFG V G W G+ VA+ +K GTMS + F++EA++M +L+H
Sbjct: 1 WEIPRESLKLERKLGAGQFGEVWMGTWNGTTKVAVKTLKPGTMSPEAFLQEAQIMKKLRH 60
Query: 482 QNLVQLYGVCSKHRPIYIVTD 502
LVQLY VCS+ PIYIVT+
Sbjct: 61 DKLVQLYAVCSEEEPIYIVTE 81
Score = 66.2 bits (162), Expect = 4e-12
Identities = 23/50 (46%), Positives = 38/50 (76%)
Query: 205 NYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
NY RF+ KSDVW++G+L+ E+ T G++PY + N EV+++V+RG + +P
Sbjct: 177 NYGRFTIKSDVWSFGILLTEIVTYGRVPYPGMTNREVLEQVERGYRMPRP 226
Score = 60.4 bits (147), Expect = 3e-10
Identities = 24/49 (48%), Positives = 32/49 (65%), Gaps = 5/49 (10%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGL--LLDMCIQVCKGMAYLERHNYIHRE 47
M GSLL++L+ E G + L L+DM Q+ +GMAYLE NYIHR+
Sbjct: 83 MSKGSLLDFLKSGE---GKKLRLPQLVDMAAQIAEGMAYLESRNYIHRD 128
>gnl|CDD|212702 cd11768, SH3_Tec_like, Src Homology 3 domain of Tec-like Protein
Tyrosine Kinases. The Tec (Tyrosine kinase expressed in
hepatocellular carcinoma) subfamily is composed of Tec,
Btk, Bmx (Etk), Itk (Tsk, Emt), Rlk (Txk), and similar
proteins. They are cytoplasmic (or nonreceptor) tyr
kinases containing Src homology protein interaction
domains (SH3, SH2) N-terminal to the catalytic tyr
kinase domain. Most Tec subfamily members (except Rlk)
also contain an N-terminal pleckstrin homology (PH)
domain, which binds the products of PI3K and allows
membrane recruitment and activation. In addition, some
members contain the Tec homology (TH) domain, which
contains proline-rich and zinc-binding regions. Tec
kinases are expressed mainly by haematopoietic cells,
although Tec and Bmx are also found in endothelial
cells. B-cells express Btk and Tec, while T-cells
express Itk, Txk, and Tec. Collectively, Tec kinases are
expressed in a variety of myeloid cells such as mast
cells, platelets, macrophages, and dendritic cells. Each
Tec kinase shows a distinct cell-type pattern of
expression. The function of Tec kinases in lymphoid
cells have been studied extensively. They play important
roles in the development, differentiation, maturation,
regulation, survival, and function of B-cells and
T-cells. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 106 bits (266), Expect = 2e-28
Identities = 37/54 (68%), Positives = 44/54 (81%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
+VVALY F+ IE GDL LEKG EY V+DD+ EHWW+ +DKNG+ GYIPSNYV E
Sbjct: 1 IVVALYDFQPIEPGDLPLEKGEEYVVLDDSNEHWWRARDKNGNEGYIPSNYVTE 54
>gnl|CDD|133199 cd05068, PTKc_Frk_like, Catalytic domain of Fyn-related kinase-like
Protein Tyrosine Kinases. Protein Tyrosine Kinase (PTK)
family; Human Fyn-related kinase (Frk) and similar
proteins; catalytic (c) domain. The PTKc family is part
of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Frk and
Srk are members of the Src subfamily of proteins, which
are cytoplasmic (or non-receptor) tyr kinases. Src
kinases contain an N-terminal SH4 domain with a
myristoylation site, followed by SH3 and SH2 domains, a
tyr kinase domain, and a regulatory C-terminal region
containing a conserved tyr. They are activated by
autophosphorylation at the tyr kinase domain, but are
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). Src
proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival, and
differentiation. Frk, also known as Rak, is specifically
expressed in liver, lung, kidney, intestine, mammary
glands, and the islets of Langerhans. Rodent homologs
were previously referred to as GTK (gastrointestinal tyr
kinase), BSK (beta-cell Src-like kinase), or IYK
(intestinal tyr kinase). Studies in mice reveal that Frk
is not essential for viability. It plays a role in the
signaling that leads to cytokine-induced beta-cell death
in Type I diabetes. It also regulates beta-cell number
during embryogenesis and early in life.
Length = 261
Score = 104 bits (262), Expect = 2e-25
Identities = 40/81 (49%), Positives = 54/81 (66%), Gaps = 2/81 (2%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRGSIDVAM--MKEGTMSEDDFIEEAKVMTRLQH 481
WEID + LL +LG+GQFG V G W + VA+ +K GTM DF+ EA++M +L+H
Sbjct: 1 WEIDRTSIQLLRKLGAGQFGEVWEGLWNNTTPVAVKTLKPGTMDPKDFLAEAQIMKKLRH 60
Query: 482 QNLVQLYGVCSKHRPIYIVTD 502
L+QLY VC+ PIYIVT+
Sbjct: 61 PKLIQLYAVCTLEEPIYIVTE 81
Score = 62.4 bits (152), Expect = 7e-11
Identities = 23/50 (46%), Positives = 34/50 (68%)
Query: 205 NYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
Y RFS KSDVW++G+L+ E+ T G+MPY + N EV+ +V +G + P
Sbjct: 177 LYNRFSIKSDVWSFGILLTEIVTYGRMPYPGMTNAEVLQQVDQGYRMPCP 226
Score = 59.4 bits (144), Expect = 7e-10
Identities = 25/49 (51%), Positives = 31/49 (63%), Gaps = 5/49 (10%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGL--LLDMCIQVCKGMAYLERHNYIHRE 47
M++GSLL YL+ G + L L+DM QV GMAYLE NYIHR+
Sbjct: 83 MKYGSLLEYLQGGA---GRALKLPQLIDMAAQVASGMAYLEAQNYIHRD 128
>gnl|CDD|219530 pfam07714, Pkinase_Tyr, Protein tyrosine kinase.
Length = 258
Score = 102 bits (258), Expect = 9e-25
Identities = 34/80 (42%), Positives = 49/80 (61%), Gaps = 9/80 (11%)
Query: 431 LMLLEELGSGQFGVVRRGKWRGS-----IDVA--MMKEGTMSED--DFIEEAKVMTRLQH 481
L L ++LG G FG V +G +G VA +KEG E+ +F+EEA +M +L H
Sbjct: 1 LELGKKLGEGAFGEVYKGTLKGDGEGTETKVAVKTLKEGASEEEREEFLEEASIMKKLSH 60
Query: 482 QNLVQLYGVCSKHRPIYIVT 501
N+V+L GVC++ P+YIVT
Sbjct: 61 PNIVRLLGVCTQGEPLYIVT 80
Score = 83.7 bits (208), Expect = 5e-18
Identities = 24/53 (45%), Positives = 38/53 (71%)
Query: 203 VLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
L +F+SKSDVW++GVL+WE+FT G+ PY + N EV++ ++ G L +P+
Sbjct: 175 SLKDGKFTSKSDVWSFGVLLWEIFTLGEQPYPGMSNEEVLELLEDGYRLPRPE 227
Score = 73.3 bits (181), Expect = 1e-14
Identities = 21/46 (45%), Positives = 29/46 (63%), Gaps = 2/46 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHR 46
M G LL++LR+H L + LL M +Q+ KGM YLE N++HR
Sbjct: 83 MPGGDLLDFLRKHGEKL--TLKDLLQMALQIAKGMEYLESKNFVHR 126
>gnl|CDD|198259 cd10396, SH2_Tec_Itk, Src homology 2 (SH2) domain found in Tec
protein, IL2-inducible T-cell kinase (Itk). A member of
the Tec protein tyrosine kinase Itk is expressed thymus,
spleen, lymph node, T lymphocytes, NK and mast cells. It
plays a role in T-cell proliferation and
differentiation, analogous to Tec family kinases Txk.
Itk has been shown to interact with Fyn,
Wiskott-Aldrich syndrome protein, KHDRBS1, PLCG1,
Lymphocyte cytosolic protein 2, Linker of activated T
cells, Karyopherin alpha 2, Grb2, and Peptidylprolyl
isomerase A. Most of the Tec family members have a PH
domain (Txk and the short (type 1) splice variant of
Drosophila Btk29A are exceptions), a Tec homology (TH)
domain, a SH3 domain, a SH2 domain, and a protein kinase
catalytic domain. The TH domain consists of a
Zn2+-binding Btk motif and a proline-rich region. The
Btk motif is found in Tec kinases, Ras GAP, and IGBP. It
is crucial for the function of Tec PH domains and it's
lack of presence in Txk is not surprising since it lacks
a PH domain. The type 1 splice form of the Drosophila
homolog also lacks both the PH domain and the Btk motif.
The proline-rich regions are highly conserved for the
most part with the exception of Bmx whose residues
surrounding the PXXP motif are not conserved (TH-like)
and Btk29A which is entirely unique with large numbers
of glycine residues (TH-extended). Tec family members
all lack a C-terminal tyrosine having an autoinhibitory
function in its phosphorylated state. In general SH2
domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 108
Score = 96.8 bits (241), Expect = 3e-24
Identities = 48/156 (30%), Positives = 73/156 (46%), Gaps = 57/156 (36%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHIKQNSRGE 316
WY +++R +AE +L+ E KEG F+VR+SS GLYT+SLYTK
Sbjct: 8 WYNKNINRSKAEKLLRDEGKEGGFMVRDSSQPGLYTVSLYTK------------------ 49
Query: 317 FFLSEKHCCHSIPEVKDKEGCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHIKQ--NSRGE 374
E + C ++HYHIK+ +S +
Sbjct: 50 -AGGEGNPC------------------------------------IRHYHIKETNDSPKK 72
Query: 375 FFLSEKHCCHSIPEVVNYHRHNSGGLASRLKTSPCD 410
++L+EKH +SIPE++ YH+HN+ GL +RL+
Sbjct: 73 YYLAEKHVFNSIPELIEYHKHNAAGLVTRLRYPVSS 108
>gnl|CDD|133243 cd05112, PTKc_Itk, Catalytic domain of the Protein Tyrosine Kinase,
Interleukin-2-inducible T-cell Kinase. Protein Tyrosine
Kinase (PTK) family; Interleukin-2 (IL-2)-inducible
T-cell kinase (Itk); catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Itk (also
known as Tsk or Emt) is a member of the Tec subfamily of
proteins, which are cytoplasmic (or nonreceptor) tyr
kinases with similarity to Src kinases in that they
contain Src homology protein interaction domains (SH3,
SH2) N-terminal to the catalytic tyr kinase domain.
Unlike Src kinases, most Tec subfamily members (except
Rlk) also contain an N-terminal pleckstrin homology (PH)
domain, which binds the products of PI3K and allows
membrane recruitment and activation. In addition, Itk
contains the Tec homology (TH) domain containing one
proline-rich region and a zinc-binding region. Tec
kinases are expressed mainly by haematopoietic cells.
Itk is expressed in T-cells and mast cells, and is
important in their development and differentiation. Of
the three Tec kinases expressed in T-cells, Itk plays
the predominant role in T-cell receptor (TCR) signaling.
It is activated by phosphorylation upon TCR crosslinking
and is involved in the pathway resulting in
phospholipase C-gamma1 activation and actin
polymerization. It also plays a role in the downstream
signaling of the T-cell costimulatory receptor CD28, the
T-cell surface receptor CD2, and the chemokine receptor
CXCR4. In addition, Itk is crucial for the development
of T-helper(Th)2 effector responses.
Length = 256
Score = 99.3 bits (247), Expect = 2e-23
Identities = 43/77 (55%), Positives = 57/77 (74%), Gaps = 2/77 (2%)
Query: 426 IDPAELMLLEELGSGQFGVVRRGKWRGSIDVAM--MKEGTMSEDDFIEEAKVMTRLQHQN 483
I P+EL L++E+GSGQFG+V G W VA+ ++EG MSE+DFIEEA+VM +L H
Sbjct: 1 IHPSELTLVQEIGSGQFGLVWLGYWLEKRKVAIKTIREGAMSEEDFIEEAQVMMKLSHPK 60
Query: 484 LVQLYGVCSKHRPIYIV 500
LVQLYGVC++ PI +V
Sbjct: 61 LVQLYGVCTERSPICLV 77
Score = 72.7 bits (178), Expect = 2e-14
Identities = 28/54 (51%), Positives = 41/54 (75%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
+V +++++SSKSDVW++GVLMWEVF+ GK PY N+EVV+ + G L KP+
Sbjct: 171 EVFSFSKYSSKSDVWSFGVLMWEVFSEGKTPYENRSNSEVVETINAGFRLYKPR 224
Score = 51.9 bits (124), Expect = 2e-07
Identities = 23/47 (48%), Positives = 27/47 (57%), Gaps = 2/47 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M HG L +YLR LL MC+ VC+GMAYLE N IHR+
Sbjct: 81 MEHGCLSDYLRAQRGKFSQET--LLGMCLDVCEGMAYLESSNVIHRD 125
>gnl|CDD|214568 smart00221, STYKc, Protein kinase; unclassified specificity.
Phosphotransferases. The specificity of this class of
kinases can not be predicted. Possible dual-specificity
Ser/Thr/Tyr kinase.
Length = 258
Score = 94.2 bits (235), Expect = 1e-21
Identities = 29/80 (36%), Positives = 47/80 (58%), Gaps = 9/80 (11%)
Query: 431 LMLLEELGSGQFGVVRRGKWRG-----SIDVA--MMKEGTMSED--DFIEEAKVMTRLQH 481
L L ++LG G FG V +G +G ++VA +KE + +F+ EA++M +L H
Sbjct: 1 LTLGKKLGEGAFGEVYKGTLKGKGDGKEVEVAVKTLKEDASEQQIEEFLREARIMRKLDH 60
Query: 482 QNLVQLYGVCSKHRPIYIVT 501
N+V+L GVC++ P+ IV
Sbjct: 61 PNIVKLLGVCTEEEPLMIVM 80
Score = 84.9 bits (211), Expect = 2e-18
Identities = 25/53 (47%), Positives = 38/53 (71%)
Query: 203 VLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
L +F+SKSDVW++GVL+WE+FT G+ PY + N EV++ +++G L KP
Sbjct: 175 SLKEGKFTSKSDVWSFGVLLWEIFTLGEEPYPGMSNAEVLEYLKKGYRLPKPP 227
Score = 66.4 bits (163), Expect = 3e-12
Identities = 19/46 (41%), Positives = 28/46 (60%), Gaps = 1/46 (2%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHR 46
M G LL+YLR++ ++ LL +Q+ +GM YLE N+IHR
Sbjct: 83 MPGGDLLDYLRKNRPK-ELSLSDLLSFALQIARGMEYLESKNFIHR 127
>gnl|CDD|197581 smart00219, TyrKc, Tyrosine kinase, catalytic domain.
Phosphotransferases. Tyrosine-specific kinase subfamily.
Length = 257
Score = 92.6 bits (231), Expect = 3e-21
Identities = 30/78 (38%), Positives = 48/78 (61%), Gaps = 9/78 (11%)
Query: 433 LLEELGSGQFGVVRRGKWRG-----SIDVA--MMKEGTMSED--DFIEEAKVMTRLQHQN 483
L ++LG G FG V +GK +G ++VA +KE + +F+ EA++M +L H N
Sbjct: 3 LGKKLGEGAFGEVYKGKLKGKGGKKKVEVAVKTLKEDASEQQIEEFLREARIMRKLDHPN 62
Query: 484 LVQLYGVCSKHRPIYIVT 501
+V+L GVC++ P+YIV
Sbjct: 63 VVKLLGVCTEEEPLYIVM 80
Score = 84.9 bits (211), Expect = 2e-18
Identities = 24/53 (45%), Positives = 37/53 (69%)
Query: 203 VLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
L +F+SKSDVW++GVL+WE+FT G+ PY + N EV++ ++ G L +P
Sbjct: 174 SLKEGKFTSKSDVWSFGVLLWEIFTLGEQPYPGMSNEEVLEYLKNGYRLPQPP 226
Score = 69.9 bits (172), Expect = 2e-13
Identities = 20/46 (43%), Positives = 29/46 (63%), Gaps = 2/46 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHR 46
M G LL+YLR++ L ++ LL +Q+ +GM YLE N+IHR
Sbjct: 83 MEGGDLLSYLRKNRPKL--SLSDLLSFALQIARGMEYLESKNFIHR 126
>gnl|CDD|198262 cd10399, SH2_Tec_Bmx, Src homology 2 (SH2) domain found in Tec
protein, Bmx. A member of the Tec protein tyrosine
kinase Bmx is expressed in the endothelium of large
arteries, fetal endocardium, adult endocardium of the
left ventricle, bone marrow, lung, testis, granulocytes,
myeloid cell lines, and prostate cell lines. Bmx is
involved in the regulation of Rho and serum response
factor (SRF). Bmx has been shown to interact with PAK1,
PTK2, PTPN21, and RUFY1. Most of the Tec family members
have a PH domain (Txk and the short (type 1) splice
variant of Drosophila Btk29A are exceptions), a Tec
homology (TH) domain, a SH3 domain, a SH2 domain, and a
protein kinase catalytic domain. The TH domain consists
of a Zn2+-binding Btk motif and a proline-rich region.
The Btk motif is found in Tec kinases, Ras GAP, and
IGBP. It is crucial for the function of Tec PH domains.
It is not present in Txk and the type 1 splice form of
the Drosophila homolog. The proline-rich regions are
highly conserved for the most part with the exception of
Bmx whose residues surrounding the PXXP motif are not
conserved (TH-like) and Btk29A which is entirely unique
with large numbers of glycine residues (TH-extended).
Tec family members all lack a C-terminal tyrosine having
an autoinhibitory function in its phosphorylated state.
In general SH2 domains are involved in signal
transduction. They typically bind pTyr-containing
ligands via two surface pockets, a pTyr and hydrophobic
binding pocket, allowing proteins with SH2 domains to
localize to tyrosine phosphorylated sites.
Length = 106
Score = 86.5 bits (214), Expect = 1e-20
Identities = 46/149 (30%), Positives = 74/149 (49%), Gaps = 55/149 (36%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHIKQNSRGE 316
W+ G++SR ++E +L+Q+ KEG F+VRNSS G+YT+SL++K
Sbjct: 8 WFAGNISRSQSEQLLRQKGKEGAFMVRNSSQVGMYTVSLFSKA----------------- 50
Query: 317 FFLSEKHCCHSIPEVKDKEGCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHIKQNSRGEFF 376
V DK+G VKHYH+ N+ + +
Sbjct: 51 --------------VNDKKGT------------------------VKHYHVHTNAENKLY 72
Query: 377 LSEKHCCHSIPEVVNYHRHNSGGLASRLK 405
L+E +C SIP++++YH+HNS G+ +RL+
Sbjct: 73 LAENYCFDSIPKLIHYHQHNSAGMITRLR 101
>gnl|CDD|198260 cd10397, SH2_Tec_Btk, Src homology 2 (SH2) domain found in Tec
protein, Bruton's tyrosine kinase (Btk). A member of
the Tec protein tyrosine kinase Btk is expressed in bone
marrow, spleen, all hematopoietic cells except T
lymphocytes and plasma cells where it plays a crucial
role in B cell maturation and mast cell activation. Btk
has been shown to interact with GNAQ, PLCG2, protein
kinase D1, B-cell linker, SH3BP5, caveolin 1, ARID3A,
and GTF2I. Most of the Tec family members have a PH
domain (Txk and the short (type 1) splice variant of
Drosophila Btk29A are exceptions), a Tec homology (TH)
domain, a SH3 domain, a SH2 domain, and a protein kinase
catalytic domain. Btk is implicated in the primary
immunodeficiency disease X-linked agammaglobulinemia
(Bruton's agammaglobulinemia). The TH domain consists
of a Zn2+-binding Btk motif and a proline-rich region.
The Btk motif is found in Tec kinases, Ras GAP, and
IGBP. It is crucial for the function of Tec PH domains
and it's lack of presence in Txk is not surprising since
it lacks a PH domain. The type 1 splice form of the
Drosophila homolog also lacks both the PH domain and the
Btk motif. The proline-rich regions are highly
conserved for the most part with the exception of Bmx
whose residues surrounding the PXXP motif are not
conserved (TH-like) and Btk29A which is entirely unique
with large numbers of glycine residues (TH-extended).
Tec family members all lack a C-terminal tyrosine having
an autoinhibitory function in its phosphorylated state.
Two tyrosine phosphorylation (pY) sites have been
identified in Btk: one located in the activation loop of
the catalytic domain which regulates the transition
between open (active) and closed (inactive) states and
the other in its SH3 domain. In general SH2 domains are
involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 106
Score = 85.3 bits (211), Expect = 3e-20
Identities = 34/77 (44%), Positives = 53/77 (68%), Gaps = 3/77 (3%)
Query: 332 KDKEGCFVVRNSSTKGLYTLSLYTKV---PHPHVKHYHIKQNSRGEFFLSEKHCCHSIPE 388
+ KEG F+VR+SS G YT+S++ K P ++HY + + +++L+EKH +IPE
Sbjct: 25 EGKEGGFIVRDSSKAGKYTVSVFAKSAGDPQGVIRHYVVCSTPQSQYYLAEKHLFSTIPE 84
Query: 389 VVNYHRHNSGGLASRLK 405
++NYH+HN+ GL SRLK
Sbjct: 85 LINYHQHNAAGLISRLK 101
Score = 81.8 bits (202), Expect = 7e-19
Identities = 33/78 (42%), Positives = 52/78 (66%), Gaps = 3/78 (3%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSSTKGLYTLSLYTKV---PHPHVKHYHIKQNS 313
WY +M+R +AE +LKQE KEG F+VR+SS G YT+S++ K P ++HY +
Sbjct: 8 WYSKNMTRSQAEQLLKQEGKEGGFIVRDSSKAGKYTVSVFAKSAGDPQGVIRHYVVCSTP 67
Query: 314 RGEFFLSEKHCCHSIPEV 331
+ +++L+EKH +IPE+
Sbjct: 68 QSQYYLAEKHLFSTIPEL 85
>gnl|CDD|133201 cd05070, PTKc_Fyn_Yrk, Catalytic domain of the Protein Tyrosine
Kinases, Fyn and Yrk. Protein Tyrosine Kinase (PTK)
family; Fyn and Yrk kinases; catalytic (c) domain. The
PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Fyn and
Yrk are members of the Src subfamily of proteins, which
are cytoplasmic (or non-receptor) tyr kinases. Src
kinases contain an N-terminal SH4 domain with a
myristoylation site, followed by SH3 and SH2 domains, a
tyr kinase domain, and a regulatory C-terminal region
containing a conserved tyr. They are activated by
autophosphorylation at the tyr kinase domain, but are
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). Src
proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival, and
differentiation. Fyn, together with Lck, plays a
critical role in T-cell signal transduction by
phosphorylating ITAM (immunoreceptor tyr activation
motif) sequences on T-cell receptors, ultimately leading
to the proliferation and differentiation of T-cells. In
addition, Fyn is involved in the myelination of neurons,
and is implicated in Alzheimer's and Parkinson's
diseases. Yrk has been detected only in chickens. It is
primarily found in neuronal and epithelial cells and in
macrophages. It may play a role in inflammation and in
response to injury.
Length = 260
Score = 89.3 bits (221), Expect = 6e-20
Identities = 43/84 (51%), Positives = 58/84 (69%), Gaps = 3/84 (3%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRGSIDVAM--MKEGTMSEDDFIEEAKVMTRLQH 481
WEI L L+++LG+GQFG V G W G+ VA+ +K GTMS + F+EEA++M +L+H
Sbjct: 1 WEIPRESLQLIKKLGNGQFGEVWMGTWNGNTKVAVKTLKPGTMSPESFLEEAQIMKKLRH 60
Query: 482 QNLVQLYGVCSKHRPIYIVTDTSS 505
LVQLY V S+ PIYIVT+ S
Sbjct: 61 DKLVQLYAVVSE-EPIYIVTEYMS 83
Score = 54.2 bits (130), Expect = 4e-08
Identities = 22/50 (44%), Positives = 37/50 (74%)
Query: 206 YTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
Y RF+ KSDVW++G+L+ E+ T G++PY + N EV+++V+RG + P+
Sbjct: 177 YGRFTIKSDVWSFGILLTELVTKGRVPYPGMNNREVLEQVERGYRMPCPQ 226
Score = 47.3 bits (112), Expect = 6e-06
Identities = 25/53 (47%), Positives = 34/53 (64%), Gaps = 5/53 (9%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGL--LLDMCIQVCKGMAYLERHNYIHRETKKS 51
M GSLL++L+ E G + L L+DM QV GMAY+ER NYIHR+ + +
Sbjct: 82 MSKGSLLDFLKDGE---GRALKLPNLVDMAAQVAAGMAYIERMNYIHRDLRSA 131
>gnl|CDD|173624 cd00192, PTKc, Catalytic domain of Protein Tyrosine Kinases.
Protein Tyrosine Kinase (PTK) family, catalytic domain.
This PTKc family is part of a larger superfamily that
includes the catalytic domains of protein
serine/threonine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase (PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. They can be classified
into receptor and non-receptor tyr kinases. PTKs play
important roles in many cellular processes including,
lymphocyte activation, epithelium growth and
maintenance, metabolism control, organogenesis
regulation, survival, proliferation, differentiation,
migration, adhesion, motility, and morphogenesis.
Receptor tyr kinases (RTKs) are integral membrane
proteins which contain an extracellular ligand-binding
region, a transmembrane segment, and an intracellular
tyr kinase domain. RTKs are usually activated through
ligand binding, which causes dimerization and
autophosphorylation of the intracellular tyr kinase
catalytic domain, leading to intracellular signaling.
Some RTKs are orphan receptors with no known ligands.
Non-receptor (or cytoplasmic) tyr kinases are
distributed in different intracellular compartments and
are usually multi-domain proteins containing a catalytic
tyr kinase domain as well as various regulatory domains
such as SH3 and SH2. PTKs are usually autoinhibited and
require a mechanism for activation. In many PTKs, the
phosphorylation of tyr residues in the activation loop
is essential for optimal activity. Aberrant expression
of PTKs is associated with many development
abnormalities and cancers.
Length = 262
Score = 88.7 bits (221), Expect = 7e-20
Identities = 31/75 (41%), Positives = 49/75 (65%), Gaps = 8/75 (10%)
Query: 435 EELGSGQFGVVRRGKWRG----SIDVA--MMKEGTMSED--DFIEEAKVMTRLQHQNLVQ 486
++LG G FG V +GK +G + +VA +KE E+ DF++EA+VM +L H N+V+
Sbjct: 1 KKLGEGAFGEVYKGKLKGKDGKTTEVAVKTLKEDASEEERKDFLKEARVMKKLGHPNVVR 60
Query: 487 LYGVCSKHRPIYIVT 501
L GVC++ P+Y+V
Sbjct: 61 LLGVCTEEEPLYLVL 75
Score = 81.8 bits (203), Expect = 2e-17
Identities = 26/53 (49%), Positives = 37/53 (69%)
Query: 203 VLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
L F+SKSDVW++GVL+WE+FT G PY L N EV++ +++G L KP+
Sbjct: 178 SLKDGIFTSKSDVWSFGVLLWEIFTLGATPYPGLSNEEVLEYLRKGYRLPKPE 230
Score = 61.0 bits (149), Expect = 2e-10
Identities = 18/52 (34%), Positives = 24/52 (46%), Gaps = 6/52 (11%)
Query: 1 MRHGSLLNYLRRHENTLGGN------VGLLLDMCIQVCKGMAYLERHNYIHR 46
M G LL+YLR+ + LL IQ+ KGM YL ++HR
Sbjct: 78 MEGGDLLDYLRKSRPVFPSPEKSTLSLKDLLSFAIQIAKGMEYLASKKFVHR 129
>gnl|CDD|133171 cd05039, PTKc_Csk_like, Catalytic domain of C-terminal Src
kinase-like Protein Tyrosine Kinases. Protein Tyrosine
Kinase (PTK) family; C-terminal Src kinase (Csk)
subfamily; catalytic (c) domain. The Csk subfamily is
composed of Csk, Chk, and similar proteins. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Csk
subfamily kinases are cytoplasmic (or nonreceptor) tyr
kinases containing the Src homology domains, SH3 and
SH2, N-terminal to the catalytic tyr kinase domain. They
negatively regulate the activity of Src kinases that are
anchored to the plasma membrane. To inhibit Src kinases,
Csk and Chk are translocated to the membrane via binding
to specific transmembrane proteins, G-proteins, or
adaptor proteins near the membrane. Csk catalyzes the
tyr phosphorylation of the regulatory C-terminal tail of
Src kinases, resulting in their inactivation. Chk
inhibit Src kinases using a noncatalytic mechanism by
simply binding to them. As negative regulators of Src
kinases, Csk and Chk play important roles in cell
proliferation, survival, and differentiation, and
consequently, in cancer development and progression.
Length = 256
Score = 87.8 bits (218), Expect = 2e-19
Identities = 35/80 (43%), Positives = 49/80 (61%), Gaps = 1/80 (1%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRG-SIDVAMMKEGTMSEDDFIEEAKVMTRLQHQ 482
W I+ EL L +G G+FG V G +RG + V +K+ + + F+ EA VMT L+H
Sbjct: 1 WAINSKELKLGATIGKGEFGDVMLGDYRGQKVAVKCLKDDSTAAQAFLAEASVMTTLRHP 60
Query: 483 NLVQLYGVCSKHRPIYIVTD 502
NLVQL GV + P+YIVT+
Sbjct: 61 NLVQLLGVVLQGNPLYIVTE 80
Score = 65.9 bits (161), Expect = 4e-12
Identities = 22/51 (43%), Positives = 38/51 (74%)
Query: 204 LNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
L +FS+KSDVW++G+L+WE+++ G++PY R+ +VV V++G +E P
Sbjct: 171 LREKKFSTKSDVWSFGILLWEIYSFGRVPYPRIPLKDVVPHVEKGYRMEAP 221
Score = 48.2 bits (115), Expect = 3e-06
Identities = 21/50 (42%), Positives = 28/50 (56%), Gaps = 7/50 (14%)
Query: 1 MRHGSLLNYLR---RHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M GSL++YLR R TL L + VC+GM YLE N++HR+
Sbjct: 82 MAKGSLVDYLRSRGRAVITLAQ----QLGFALDVCEGMEYLEEKNFVHRD 127
>gnl|CDD|198261 cd10398, SH2_Tec_Txk, Src homology 2 (SH2) domain found in Tec
protein, Txk. A member of the Tec protein tyrosine
kinase Txk is expressed in thymus, spleen, lymph node, T
lymphocytes, NK cells, mast cell lines, and myeloid cell
line. Txk plays a role in TCR signal transduction, T
cell development, and selection which is analogous to
the function of Itk. Txk has been shown to interact with
IFN-gamma. Unlike most of the Tec family members Txk
lacks a PH domain. Instead Txk has a unique region
containing a palmitoylated cysteine string which has a
similar membrane tethering function as the PH domain.
Txk also has a zinc-binding motif, a SH3 domain, a SH2
domain, and a protein kinase catalytic domain. The TH
domain consists of a Zn2+-binding Btk motif and a
proline-rich region. The Btk motif is found in Tec
kinases, Ras GAP, and IGBP and crucial to the function
of the PH domain. It is not present in Txk which is not
surprising since it lacks a PH domain. The type 1 splice
form of the Drosophila homolog also lacks both the PH
domain and the Btk motif. The proline-rich regions are
highly conserved for the most part with the exception of
Bmx whose residues surrounding the PXXP motif are not
conserved (TH-like) and Btk29A which is entirely unique
with large numbers of glycine residues (TH-extended).
Tec family members all lack a C-terminal tyrosine having
an autoinhibitory function in its phosphorylated state.
In general SH2 domains are involved in signal
transduction. They typically bind pTyr-containing
ligands via two surface pockets, a pTyr and hydrophobic
binding pocket, allowing proteins with SH2 domains to
localize to tyrosine phosphorylated sites.
Length = 106
Score = 83.1 bits (205), Expect = 2e-19
Identities = 34/77 (44%), Positives = 54/77 (70%), Gaps = 3/77 (3%)
Query: 332 KDKEGCFVVRNSSTKGLYTLSLYTKVPHPH---VKHYHIKQNSRGEFFLSEKHCCHSIPE 388
+ KEG F+VR+S G YT+S++T+ +KHY IK+N G+++++E+H SIPE
Sbjct: 25 ESKEGAFIVRDSRHLGSYTISVFTRARRSTEASIKHYQIKKNDSGQWYVAERHLFQSIPE 84
Query: 389 VVNYHRHNSGGLASRLK 405
++ YH+HN+ GL SRL+
Sbjct: 85 LIQYHQHNAAGLMSRLR 101
Score = 78.8 bits (194), Expect = 7e-18
Identities = 33/78 (42%), Positives = 54/78 (69%), Gaps = 3/78 (3%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSSTKGLYTLSLYTKVPHPH---VKHYHIKQNS 313
WY +++R +AE +L+QE KEG F+VR+S G YT+S++T+ +KHY IK+N
Sbjct: 8 WYHKNITRNQAERLLRQESKEGAFIVRDSRHLGSYTISVFTRARRSTEASIKHYQIKKND 67
Query: 314 RGEFFLSEKHCCHSIPEV 331
G+++++E+H SIPE+
Sbjct: 68 SGQWYVAERHLFQSIPEL 85
>gnl|CDD|215658 pfam00017, SH2, SH2 domain.
Length = 77
Score = 78.4 bits (194), Expect = 4e-18
Identities = 29/75 (38%), Positives = 41/75 (54%), Gaps = 4/75 (5%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSRG 315
WY G +SR+ AE +L +G F+VR S S G YTLS+ VKHY I+ G
Sbjct: 1 WYHGKISREEAERLLLNPKPDGTFLVRESESKPGDYTLSVRDDG---RVKHYRIQSLDNG 57
Query: 316 EFFLSEKHCCHSIPE 330
+++S +S+PE
Sbjct: 58 GYYISGGVTFNSLPE 72
Score = 59.5 bits (145), Expect = 2e-11
Identities = 22/61 (36%), Positives = 34/61 (55%), Gaps = 4/61 (6%)
Query: 334 KEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVNY 392
+G F+VR S S G YTLS+ VKHY I+ G +++S +S+PE+V +
Sbjct: 20 PDGTFLVRESESKPGDYTLSVRDDG---RVKHYRIQSLDNGGYYISGGVTFNSLPELVEH 76
Query: 393 H 393
+
Sbjct: 77 Y 77
>gnl|CDD|173640 cd05067, PTKc_Lck_Blk, Catalytic domain of the Protein Tyrosine
Kinases, Lymphocyte-specific kinase and Blk. Protein
Tyrosine Kinase (PTK) family; Lck and Blk kinases;
catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Lck (lymphocyte-specific
kinase) and Blk are members of the Src subfamily of
proteins, which are cytoplasmic (or non-receptor) tyr
kinases. Src kinases contain an N-terminal SH4 domain
with a myristoylation site, followed by SH3 and SH2
domains, a tyr kinase domain, and a regulatory
C-terminal region containing a conserved tyr. They are
activated by autophosphorylation at the tyr kinase
domain, but are negatively regulated by phosphorylation
at the C-terminal tyr by Csk (C-terminal Src Kinase).
Src proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival, and
differentiation. Lck is expressed in T-cells and natural
killer (NK) cells. It plays a critical role in T-cell
maturation, activation, and T-cell receptor (TCR)
signaling. Lck phosphorylates ITAM (immunoreceptor tyr
activation motif) sequences on several subunits of TCRs,
leading to the activation of different second messenger
cascades. Phosphorylated ITAMs serve as binding sites
for other signaling factor such as Syk and ZAP-70,
leading to their activation and propagation of
downstream events. In addition, Lck regulates
drug-induced apoptosis by interfering with the
mitochondrial death pathway. The apototic role of Lck is
independent of its primary function in T-cell signaling.
Blk is expressed specifically in B-cells. It is involved
in pre-BCR (B-cell receptor) signaling.
Length = 260
Score = 83.4 bits (206), Expect = 5e-18
Identities = 36/81 (44%), Positives = 55/81 (67%), Gaps = 3/81 (3%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRGSIDVAM--MKEGTMSEDDFIEEAKVMTRLQH 481
WE+ L L+++LG+GQFG V G + G VA+ +K+G+MS + F+ EA +M +LQH
Sbjct: 1 WEVPRETLKLVKKLGAGQFGEVWMGYYNGHTKVAIKSLKQGSMSPEAFLAEANLMKQLQH 60
Query: 482 QNLVQLYGVCSKHRPIYIVTD 502
LV+LY V ++ PIYI+T+
Sbjct: 61 PRLVRLYAVVTQ-EPIYIITE 80
Score = 55.2 bits (133), Expect = 2e-08
Identities = 21/53 (39%), Positives = 37/53 (69%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
+ +NY F+ KSDVW++G+L+ E+ T G++PY + N EV+ ++RG + +P
Sbjct: 173 EAINYGTFTIKSDVWSFGILLTEIVTYGRIPYPGMTNPEVIQNLERGYRMPRP 225
Score = 51.8 bits (124), Expect = 3e-07
Identities = 20/49 (40%), Positives = 34/49 (69%), Gaps = 1/49 (2%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRETK 49
M +GSL+++L+ E + + L+DM Q+ +GMA++ER NYIHR+ +
Sbjct: 82 MENGSLVDFLKTPEG-IKLTINKLIDMAAQIAEGMAFIERKNYIHRDLR 129
>gnl|CDD|173633 cd05052, PTKc_Abl, Catalytic domain of the Protein Tyrosine Kinase,
Abelson kinase. Protein Tyrosine Kinase (PTK) family;
Abelson (Abl) kinase; catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Abl (or
c-Abl) is a ubiquitously-expressed cytoplasmic (or
nonreceptor) tyr kinase that contains SH3, SH2, and tyr
kinase domains in its N-terminal region, as well as
nuclear localization motifs, a putative DNA-binding
domain, and F- and G-actin binding domains in its
C-terminal tail. It also contains a short autoinhibitory
cap region in its N-terminus. Abl is normally inactive
and requires phosphorylation and myristoylation for
activation. Abl function depends on its subcellular
localization. In the cytoplasm, Abl plays a role in cell
proliferation and survival. In response to DNA damage or
oxidative stress, Abl is transported to the nucleus
where it induces apoptosis. In chronic myelogenous
leukemia (CML) patients, an aberrant translocation
results in the replacement of the first exon of Abl with
the BCR (breakpoint cluster region) gene. The resulting
BCR-Abl fusion protein is constitutively active and
associates into tetramers, resulting in a hyperactive
kinase sending a continuous signal. This leads to
uncontrolled proliferation, morphological transformation
and anti-apoptotic effects. BCR-Abl is the target of
selective inhibitors, such as imatinib (Gleevec), used
in the treatment of CML. Abl2, also known as ARG
(Abelson-related gene), is thought to play a cooperative
role with Abl in the proper development of the nervous
system. The Tel-ARG fusion protein, resulting from
reciprocal translocation between chromosomes 1 and 12,
is associated with acute myeloid leukemia (AML). The TEL
gene is a frequent fusion partner of other tyr kinase
oncogenes, including Tel/Abl, Tel/PDGFRbeta, and
Tel/Jak2, found in patients with leukemia and
myeloproliferative disorders.
Length = 263
Score = 83.0 bits (205), Expect = 9e-18
Identities = 33/82 (40%), Positives = 54/82 (65%), Gaps = 3/82 (3%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRG---SIDVAMMKEGTMSEDDFIEEAKVMTRLQ 480
WE++ ++ + +LG GQ+G V G W+ ++ V +KE TM ++F++EA VM ++
Sbjct: 1 WEMERTDITMKHKLGGGQYGEVYEGVWKKYSLTVAVKTLKEDTMEVEEFLKEAAVMKEIK 60
Query: 481 HQNLVQLYGVCSKHRPIYIVTD 502
H NLVQL GVC++ P YI+T+
Sbjct: 61 HPNLVQLLGVCTREPPFYIITE 82
Score = 58.3 bits (141), Expect = 2e-09
Identities = 23/52 (44%), Positives = 37/52 (71%)
Query: 204 LNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
L Y +FS KSDVWA+GVL+WE+ T G PY + ++V + +++G +E+P+
Sbjct: 177 LAYNKFSIKSDVWAFGVLLWEIATYGMSPYPGIDLSQVYELLEKGYRMERPE 228
Score = 49.1 bits (117), Expect = 2e-06
Identities = 20/47 (42%), Positives = 28/47 (59%), Gaps = 1/47 (2%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M +G+LL+YLR V +LL M Q+ M YLE+ N+IHR+
Sbjct: 84 MTYGNLLDYLRECNRQEVNAV-VLLYMATQISSAMEYLEKKNFIHRD 129
>gnl|CDD|212838 cd11905, SH3_Tec, Src Homology 3 domain of Tec (Tyrosine kinase
expressed in hepatocellular carcinoma). Tec is a
cytoplasmic (or nonreceptor) tyr kinase containing Src
homology protein interaction domains (SH3, SH2)
N-terminal to the catalytic tyr kinase domain. It also
contains an N-terminal pleckstrin homology (PH) domain,
which binds the products of PI3K and allows membrane
recruitment and activation, and the Tec homology (TH)
domain, which contains proline-rich and zinc-binding
regions. It is more widely-expressed than other Tec
subfamily kinases. Tec is found in endothelial cells,
both B- and T-cells, and a variety of myeloid cells
including mast cells, erythroid cells, platelets,
macrophages and neutrophils. Tec is a key component of
T-cell receptor (TCR) signaling, and is important in
TCR-stimulated proliferation, IL-2 production and
phospholipase C-gamma1 activation. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 56
Score = 75.6 bits (186), Expect = 3e-17
Identities = 29/56 (51%), Positives = 37/56 (66%)
Query: 126 KVVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKEK 181
++VVA+Y F+ E DL LE G EY +++ HWWK +DK G GYIPSNYV K
Sbjct: 1 EIVVAMYDFQPTEPHDLRLETGEEYVILEKNDVHWWKARDKYGKEGYIPSNYVTGK 56
Score = 53.3 bits (128), Expect = 2e-09
Identities = 20/43 (46%), Positives = 28/43 (65%)
Query: 73 KVVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNG 115
++VVA+Y F+ E DL LE G EY +++ HWWK +DK G
Sbjct: 1 EIVVAMYDFQPTEPHDLRLETGEEYVILEKNDVHWWKARDKYG 43
>gnl|CDD|214585 smart00252, SH2, Src homology 2 domains. Src homology 2 domains
bind phosphotyrosine-containing polypeptides via 2
surface pockets. Specificity is provided via interaction
with residues that are distinct from the
phosphotyrosine. Only a single occurrence of a SH2
domain has been found in S. cerevisiae.
Length = 84
Score = 74.2 bits (183), Expect = 1e-16
Identities = 31/75 (41%), Positives = 44/75 (58%), Gaps = 5/75 (6%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHIKQNSRG 315
WY G +SR+ AE +LK E +G F+VR+S + G Y LS+ K VKHY I++N G
Sbjct: 3 WYHGFISREEAEKLLKNEG-DGDFLVRDSESSPGDYVLSVRVK---GKVKHYRIRRNEDG 58
Query: 316 EFFLSEKHCCHSIPE 330
+F+L S+ E
Sbjct: 59 KFYLEGGRKFPSLVE 73
Score = 65.7 bits (161), Expect = 1e-13
Identities = 25/69 (36%), Positives = 40/69 (57%), Gaps = 4/69 (5%)
Query: 332 KDKEGCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVV 390
+ +G F+VR+S + G Y LS+ K VKHY I++N G+F+L S+ E+V
Sbjct: 19 NEGDGDFLVRDSESSPGDYVLSVRVK---GKVKHYRIRRNEDGKFYLEGGRKFPSLVELV 75
Query: 391 NYHRHNSGG 399
+++ NS G
Sbjct: 76 EHYQKNSLG 84
>gnl|CDD|133202 cd05071, PTKc_Src, Catalytic domain of the Protein Tyrosine Kinase,
Src. Protein Tyrosine Kinase (PTK) family; Src kinase;
catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Src (or c-Src) is a
cytoplasmic (or non-receptor) tyr kinase, containing an
N-terminal SH4 domain with a myristoylation site,
followed by SH3 and SH2 domains, a tyr kinase domain,
and a regulatory C-terminal region with a conserved tyr.
It is activated by autophosphorylation at the tyr kinase
domain, and is negatively regulated by phosphorylation
at the C-terminal tyr by Csk (C-terminal Src Kinase).
c-Src is the vertebrate homolog of the oncogenic protein
(v-Src) from Rous sarcoma virus. Together with other Src
subfamily proteins, it is involved in signaling pathways
that regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival, and
differentiation. Src also play a role in regulating cell
adhesion, invasion, and motility in cancer cells and
tumor vasculature, contributing to cancer progression
and metastasis. Elevated levels of Src kinase activity
have been reported in a variety of human cancers.
Several inhibitors of Src have been developed as
anti-cancer drugs. Src is also implicated in acute
inflammatory responses and osteoclast function.
Length = 262
Score = 78.9 bits (194), Expect = 2e-16
Identities = 41/81 (50%), Positives = 54/81 (66%), Gaps = 3/81 (3%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRGSIDVAM--MKEGTMSEDDFIEEAKVMTRLQH 481
WEI L L +LG G FG V G W G+ VA+ +K GTMS + F++EA+VM +L+H
Sbjct: 1 WEIPRESLRLEVKLGQGCFGEVWMGTWNGTTRVAIKTLKPGTMSPEAFLQEAQVMKKLRH 60
Query: 482 QNLVQLYGVCSKHRPIYIVTD 502
+ LVQLY V S+ PIYIVT+
Sbjct: 61 EKLVQLYAVVSE-EPIYIVTE 80
Score = 54.3 bits (130), Expect = 4e-08
Identities = 23/49 (46%), Positives = 36/49 (73%)
Query: 206 YTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
Y RF+ KSDVW++G+L+ E+ T G++PY + N EV+D+V+RG + P
Sbjct: 177 YGRFTIKSDVWSFGILLTELTTKGRVPYPGMVNREVLDQVERGYRMPCP 225
Score = 43.1 bits (101), Expect = 1e-04
Identities = 20/51 (39%), Positives = 31/51 (60%), Gaps = 1/51 (1%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRETKKS 51
M GSLL++L+ + L+DM Q+ GMAY+ER NY+HR+ + +
Sbjct: 82 MSKGSLLDFLKGEMGKYL-RLPQLVDMAAQIASGMAYVERMNYVHRDLRAA 131
>gnl|CDD|173641 cd05072, PTKc_Lyn, Catalytic domain of the Protein Tyrosine Kinase,
Lyn. Protein Tyrosine Kinase (PTK) family; Lyn kinase;
catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Lyn is a member of the
Src subfamily of proteins, which are cytoplasmic (or
non-receptor) tyr kinases. Src kinases contain an
N-terminal SH4 domain with a myristoylation site,
followed by SH3 and SH2 domains, a tyr kinase domain,
and a regulatory C-terminal region containing a
conserved tyr. They are activated by autophosphorylation
at the tyr kinase domain, but are negatively regulated
by phosphorylation at the C-terminal tyr by Csk
(C-terminal Src Kinase). Src proteins are involved in
signaling pathways that regulate cytokine and growth
factor responses, cytoskeleton dynamics, cell
proliferation, survival, and differentiation. Lyn is
expressed in B lymphocytes and myeloid cells. It
exhibits both positive and negative regulatory roles in
B cell receptor (BCR) signaling. Lyn, as well as Fyn and
Blk, promotes B cell activation by phosphorylating ITAMs
(immunoreceptor tyr activation motifs) in CD19 and in Ig
components of BCR. It negatively regulates signaling by
its unique ability to phosphorylate ITIMs
(immunoreceptor tyr inhibition motifs) in cell surface
receptors like CD22 and CD5. Lyn also plays an important
role in G-CSF receptor signaling by phosphorylating a
variety of adaptor molecules.
Length = 261
Score = 78.9 bits (194), Expect = 2e-16
Identities = 39/81 (48%), Positives = 53/81 (65%), Gaps = 2/81 (2%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRGSIDVAM--MKEGTMSEDDFIEEAKVMTRLQH 481
WEI + L+++LG+GQFG V G + S VA+ +K GTMS F+EEA +M LQH
Sbjct: 1 WEIPRESIKLVKKLGAGQFGEVWMGYYNNSTKVAVKTLKPGTMSVQAFLEEANLMKTLQH 60
Query: 482 QNLVQLYGVCSKHRPIYIVTD 502
LV+LY V +K PIYI+T+
Sbjct: 61 DKLVRLYAVVTKEEPIYIITE 81
Score = 58.1 bits (140), Expect = 2e-09
Identities = 20/54 (37%), Positives = 39/54 (72%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
+ +N+ F+ KSDVW++G+L++E+ T GK+PY + N++V+ +QRG + + +
Sbjct: 174 EAINFGSFTIKSDVWSFGILLYEIVTYGKIPYPGMSNSDVMSALQRGYRMPRME 227
Score = 48.1 bits (114), Expect = 4e-06
Identities = 25/53 (47%), Positives = 35/53 (66%), Gaps = 5/53 (9%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGL--LLDMCIQVCKGMAYLERHNYIHRETKKS 51
M GSLL++L+ E GG V L L+D Q+ +GMAY+ER NYIHR+ + +
Sbjct: 83 MAKGSLLDFLKSDE---GGKVLLPKLIDFSAQIAEGMAYIERKNYIHRDLRAA 132
>gnl|CDD|133248 cd05148, PTKc_Srm_Brk, Catalytic domain of the Protein Tyrosine
Kinases, Srm and Brk. Protein Tyrosine Kinase (PTK)
family; Src-related kinase lacking C-terminal regulatory
tyrosine and N-terminal myristylation sites (Srm) and
breast tumor kinase (Brk, also called protein tyrosine
kinase 6); catalytic (c) domains. The PTKc family is
part of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Srm and
Brk are a member of the Src subfamily of proteins, which
are cytoplasmic (or non-receptor) tyr kinases. Src
kinases in general contain an N-terminal SH4 domain with
a myristoylation site, followed by SH3 and SH2 domains,
a tyr kinase domain, and a regulatory C-terminal region
containing a conserved tyr; they are activated by
autophosphorylation at the tyr kinase domain, but are
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). Srm and
Brk however, lack the N-terminal myristylation sites.
Src proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival, and
differentiation. Brk has been found to be overexpressed
in a majority of breast tumors.
Length = 261
Score = 78.6 bits (194), Expect = 3e-16
Identities = 30/82 (36%), Positives = 48/82 (58%), Gaps = 3/82 (3%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRGSIDVA---MMKEGTMSEDDFIEEAKVMTRLQ 480
WE E L +LGSG FG V G W+ + VA + + + + DF +E + + RL+
Sbjct: 1 WERPREEFTLERKLGSGYFGEVWEGLWKNRVRVAIKILKSDDLLKQQDFQKEVQALKRLR 60
Query: 481 HQNLVQLYGVCSKHRPIYIVTD 502
H++L+ L+ VCS P+YI+T+
Sbjct: 61 HKHLISLFAVCSVGEPVYIITE 82
Score = 64.0 bits (156), Expect = 2e-11
Identities = 21/53 (39%), Positives = 37/53 (69%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
+ ++ FS+KSDVW++G+L++E+FT G++PY + N EV D++ G + P
Sbjct: 174 EAASHGTFSTKSDVWSFGILLYEMFTYGQVPYPGMNNHEVYDQITAGYRMPCP 226
Score = 49.7 bits (119), Expect = 1e-06
Identities = 24/49 (48%), Positives = 30/49 (61%), Gaps = 5/49 (10%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGL--LLDMCIQVCKGMAYLERHNYIHRE 47
M GSLL +LR E G + + L+DM QV +GMAYLE N IHR+
Sbjct: 84 MEKGSLLAFLRSPE---GQVLPVASLIDMACQVAEGMAYLEEQNSIHRD 129
>gnl|CDD|214620 smart00326, SH3, Src homology 3 domains. Src homology 3 (SH3)
domains bind to target proteins through sequences
containing proline and hydrophobic amino acids.
Pro-containing polypeptides may bind to SH3 domains in 2
different binding orientations.
Length = 56
Score = 72.2 bits (178), Expect = 3e-16
Identities = 20/56 (35%), Positives = 30/56 (53%)
Query: 124 RPKVVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
V ALY + A + +LS +KG V++ + + WWK + G G PSNYV+
Sbjct: 1 EGPQVRALYDYTAQDPDELSFKKGDIITVLEKSDDGWWKGRLGRGKEGLFPSNYVE 56
Score = 52.9 bits (128), Expect = 2e-09
Identities = 14/47 (29%), Positives = 23/47 (48%)
Query: 71 RPKVVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGIR 117
V ALY + A + +LS +KG V++ + + WWK + G
Sbjct: 1 EGPQVRALYDYTAQDPDELSFKKGDIITVLEKSDDGWWKGRLGRGKE 47
>gnl|CDD|133200 cd05069, PTKc_Yes, Catalytic domain of the Protein Tyrosine Kinase,
Yes. Protein Tyrosine Kinase (PTK) family; Yes kinase;
catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Yes (or c-Yes) is a
member of the Src subfamily of proteins, which are
cytoplasmic (or non-receptor) tyr kinases. Src kinases
contain an N-terminal SH4 domain with a myristoylation
site, followed by SH3 and SH2 domains, a tyr kinase
domain, and a regulatory C-terminal region containing a
conserved tyr. They are activated by autophosphorylation
at the tyr kinase domain, but are negatively regulated
by phosphorylation at the C-terminal tyr by Csk
(C-terminal Src Kinase). Src proteins are involved in
signaling pathways that regulate cytokine and growth
factor responses, cytoskeleton dynamics, cell
proliferation, survival, and differentiation. c-Yes
kinase is the cellular homolog of the oncogenic protein
(v-Yes) encoded by the Yamaguchi 73 and Esh sarcoma
viruses. It displays functional overlap with other Src
subfamily members, particularly Src. It also shows some
unique functions such as binding to occludins,
transmembrane proteins that regulate extracellular
interactions in tight junctions. Yes also associates
with a number of proteins in different cell types that
Src does not interact with, like JAK2 and gp130 in
pre-adipocytes, and Pyk2 in treated pulmonary vein
endothelial cells. Although the biological function of
Yes remains unclear, it appears to have a role in
regulating cell-cell interactions and vesicle
trafficking in polarized cells.
Length = 260
Score = 72.4 bits (177), Expect = 3e-14
Identities = 38/81 (46%), Positives = 51/81 (62%), Gaps = 3/81 (3%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRGSIDVAM--MKEGTMSEDDFIEEAKVMTRLQH 481
WEI L L +LG G FG V G W G+ VA+ +K GTM + F++EA++M +L+H
Sbjct: 1 WEIPRESLRLDVKLGQGCFGEVWMGTWNGTTKVAIKTLKPGTMMPEAFLQEAQIMKKLRH 60
Query: 482 QNLVQLYGVCSKHRPIYIVTD 502
LV LY V S+ PIYIVT+
Sbjct: 61 DKLVPLYAVVSE-EPIYIVTE 80
Score = 52.8 bits (126), Expect = 1e-07
Identities = 22/51 (43%), Positives = 37/51 (72%)
Query: 206 YTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPKA 256
Y RF+ KSDVW++G+L+ E+ T G++PY + N EV+++V+RG + P+
Sbjct: 177 YGRFTIKSDVWSFGILLTELVTKGRVPYPGMVNREVLEQVERGYRMPCPQG 227
Score = 43.5 bits (102), Expect = 1e-04
Identities = 23/53 (43%), Positives = 34/53 (64%), Gaps = 5/53 (9%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGL--LLDMCIQVCKGMAYLERHNYIHRETKKS 51
M GSLL++L+ + G + L L+DM Q+ GMAY+ER NYIHR+ + +
Sbjct: 82 MGKGSLLDFLKEGD---GKYLKLPQLVDMAAQIADGMAYIERMNYIHRDLRAA 131
>gnl|CDD|212839 cd11906, SH3_BTK, Src Homology 3 domain of Bruton's tyrosine
kinase. BTK is a cytoplasmic (or nonreceptor) tyr
kinase containing Src homology protein interaction
domains (SH3, SH2) N-terminal to the catalytic tyr
kinase domain. It also contains an N-terminal pleckstrin
homology (PH) domain, which binds the products of PI3K
and allows membrane recruitment and activation, and the
Tec homology (TH) domain with proline-rich and
zinc-binding regions. Btk is expressed in B-cells, and a
variety of myeloid cells including mast cells,
platelets, neutrophils, and dendrictic cells. It
interacts with a variety of partners, from cytosolic
proteins to nuclear transcription factors, suggesting a
diversity of functions. Stimulation of a diverse array
of cell surface receptors, including antigen engagement
of the B-cell receptor (BCR), leads to PH-mediated
membrane translocation of Btk and subsequent
phosphorylation by Src kinase and activation. Btk plays
an important role in the life cycle of B-cells including
their development, differentiation, proliferation,
survival, and apoptosis. Mutations in Btk cause the
primary immunodeficiency disease, X-linked
agammaglobulinaemia (XLA) in humans. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 55
Score = 66.4 bits (162), Expect = 4e-14
Identities = 28/55 (50%), Positives = 37/55 (67%)
Query: 126 KVVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
K VVALY + + DL L KG EY +++++ WW+ +DKNG GYIPSNYV E
Sbjct: 1 KKVVALYDYTPMNAQDLQLRKGEEYVILEESNLPWWRARDKNGREGYIPSNYVTE 55
Score = 47.1 bits (112), Expect = 3e-07
Identities = 19/43 (44%), Positives = 28/43 (65%)
Query: 73 KVVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNG 115
K VVALY + + DL L KG EY +++++ WW+ +DKNG
Sbjct: 1 KKVVALYDYTPMNAQDLQLRKGEEYVILEESNLPWWRARDKNG 43
>gnl|CDD|133191 cd05060, PTKc_Syk_like, Catalytic domain of Spleen Tyrosine
Kinase-like Protein Tyrosine Kinases. Protein Tyrosine
Kinase (PTK) family; Spleen Tyrosine Kinase (Syk)
subfamily; catalytic (c) domain. The Syk subfamily is
composed of Syk, ZAP-70, Shark, and similar proteins.
The PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Syk
subfamily kinases are cytoplasmic (or nonreceptor) tyr
kinases containing two Src homology 2 (SH2) domains
N-terminal to the catalytic tyr kinase domain. They are
involved in the signaling downstream of activated
receptors (including B-cell, T-cell, and Fc receptors)
that contain ITAMs (immunoreceptor tyr activation
motifs), leading to processes such as cell
proliferation, differentiation, survival, adhesion,
migration, and phagocytosis. Syk is important in B-cell
receptor (BCR) signaling, while Zap-70 is primarily
expressed in T-cells and NK cells, and is a crucial
component in T-cell receptor (TCR) signaling. Syk also
plays a central role in Fc receptor-mediated
phagocytosis in the adaptive immune system. Shark is
exclusively expressed in ectodermally derived epithelia,
and is localized preferentially to the apical surface of
the epithelial cells, it may play a role in a signaling
pathway for epithelial cell polarity.
Length = 257
Score = 71.6 bits (176), Expect = 6e-14
Identities = 26/51 (50%), Positives = 36/51 (70%)
Query: 204 LNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
+NY +FSSKSDVW+YGV +WE F+ G PYG +K EV+ ++ G L +P
Sbjct: 170 INYGKFSSKSDVWSYGVTLWEAFSYGAKPYGEMKGAEVIAMLESGERLPRP 220
Score = 58.5 bits (142), Expect = 1e-09
Identities = 23/65 (35%), Positives = 38/65 (58%), Gaps = 8/65 (12%)
Query: 435 EELGSGQFGVVRRGKWR----GSIDVA--MMKEGTMS--EDDFIEEAKVMTRLQHQNLVQ 486
+ELG G FG V +G + ++VA +K+ ++ + +F+ EA VM +L H +V+
Sbjct: 1 KELGHGNFGSVVKGVYLMKSGKEVEVAVKTLKQEHIAAGKKEFLREASVMAQLDHPCIVR 60
Query: 487 LYGVC 491
L GVC
Sbjct: 61 LIGVC 65
Score = 39.3 bits (92), Expect = 0.003
Identities = 17/44 (38%), Positives = 25/44 (56%), Gaps = 3/44 (6%)
Query: 4 GSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
G LL YL++ V L ++ QV GMAYLE +++HR+
Sbjct: 80 GPLLKYLKKRREI---PVSDLKELAHQVAMGMAYLESKHFVHRD 120
>gnl|CDD|198173 cd00173, SH2, Src homology 2 (SH2) domain. In general, SH2 domains
are involved in signal transduction; they bind
pTyr-containing polypeptide ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites. They are present in a wide array
of proteins including: adaptor proteins (Nck1, Crk,
Grb2), scaffolds (Slp76, Shc, Dapp1), kinases (Src, Syk,
Fps, Tec), phosphatases (Shp-1, Shp-2), transcription
factors (STAT1), Ras signaling molecules (Ras-Gap),
ubiquitination factors (c-Cbl), cytoskeleton regulators
(Tensin), signal regulators (SAP), and phospholipid
second messengers (PLCgamma), amongst others.
Length = 79
Score = 65.9 bits (161), Expect = 1e-13
Identities = 28/77 (36%), Positives = 44/77 (57%), Gaps = 5/77 (6%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHIKQNSRG 315
W+ G +SR+ AE +L+ + +G F+VR SS+ G Y LS+ + VKHY I++N G
Sbjct: 2 WFHGSISREEAERLLRGK-PDGTFLVRESSSEPGDYVLSV--RSGDGKVKHYLIERNEGG 58
Query: 316 EFFL-SEKHCCHSIPEV 331
+ L S+PE+
Sbjct: 59 YYLLGGSGRTFPSLPEL 75
Score = 52.5 bits (126), Expect = 7e-09
Identities = 22/62 (35%), Positives = 34/62 (54%), Gaps = 4/62 (6%)
Query: 334 KEGCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFL-SEKHCCHSIPEVVN 391
+G F+VR SS+ G Y LS+ + VKHY I++N G + L S+PE+V
Sbjct: 20 PDGTFLVRESSSEPGDYVLSV--RSGDGKVKHYLIERNEGGYYLLGGSGRTFPSLPELVE 77
Query: 392 YH 393
++
Sbjct: 78 HY 79
>gnl|CDD|215659 pfam00018, SH3_1, SH3 domain. SH3 (Src homology 3) domains are
often indicative of a protein involved in signal
transduction related to cytoskeletal organisation. First
described in the Src cytoplasmic tyrosine kinase. The
structure is a partly opened beta barrel.
Length = 47
Score = 64.5 bits (158), Expect = 1e-13
Identities = 20/47 (42%), Positives = 28/47 (59%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPS 175
VALY + A E +LS +KG V++ + + WWK + K G G IPS
Sbjct: 1 VALYDYTAREPDELSFKKGDIIIVLEKSDDGWWKGRLKGGKEGLIPS 47
Score = 53.7 bits (130), Expect = 8e-10
Identities = 16/40 (40%), Positives = 24/40 (60%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNG 115
VALY + A E +LS +KG V++ + + WWK + K G
Sbjct: 1 VALYDYTAREPDELSFKKGDIIIVLEKSDDGWWKGRLKGG 40
>gnl|CDD|212779 cd11845, SH3_Src_like, Src homology 3 domain of Src kinase-like
Protein Tyrosine Kinases. Src subfamily members include
Src, Lck, Hck, Blk, Lyn, Fgr, Fyn, Yrk, Yes, and Brk.
Src (or c-Src) proteins are cytoplasmic (or
non-receptor) PTKs which are anchored to the plasma
membrane. They contain an N-terminal SH4 domain with a
myristoylation site, followed by SH3 and SH2 domains, a
tyr kinase domain, and a regulatory C-terminal region
containing a conserved tyr. They are activated by
autophosphorylation at the tyr kinase domain, but are
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). However,
Brk lacks the N-terminal myristoylation sites. Src
proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival, and
differentiation. They were identified as the first
proto-oncogene products, and they regulate cell
adhesion, invasion, and motility in cancer cells, and
tumor vasculature, contributing to cancer progression
and metastasis. Src kinases are overexpressed in a
variety of human cancers, making them attractive targets
for therapy. They are also implicated in acute
inflammatory responses and osteoclast function. Src,
Fyn, Yes, and Yrk are widely expressed, while Blk, Lck,
Hck, Fgr, Lyn, and Brk show a limited expression
pattern. This subfamily also includes Drosophila Src42A,
Src oncogene at 42A (also known as Dsrc41) which
accumulates at sites of cell-cell or cell-matrix
adhesion, and participates in Drosphila development and
wound healing. It has been shown to promote tube
elongation in the tracheal system, is essential for
proper cell-cell matching during dorsal closure, and
regulates cell-cell contacts in developing Drosophila
eyes. The SH3 domain of Src kinases contributes to
substrate recruitment by binding adaptor
proteins/substrates, and regulation of kinase activity
through an intramolecular interaction. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 52
Score = 64.1 bits (157), Expect = 2e-13
Identities = 22/52 (42%), Positives = 32/52 (61%), Gaps = 1/52 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKN-GSVGYIPSNY 177
+ VALY ++A DLS +KG +++DD+ WW + + G GYIPSNY
Sbjct: 1 IYVALYDYEARTDDDLSFKKGDRLQILDDSDGDWWLARHLSTGKEGYIPSNY 52
Score = 48.7 bits (117), Expect = 7e-08
Identities = 14/38 (36%), Positives = 23/38 (60%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK 111
+ VALY ++A DLS +KG +++DD+ WW +
Sbjct: 1 IYVALYDYEARTDDDLSFKKGDRLQILDDSDGDWWLAR 38
>gnl|CDD|212841 cd11908, SH3_ITK, Src Homology 3 domain of Interleukin-2-inducible
T-cell Kinase. ITK (also known as Tsk or Emt) is a
cytoplasmic (or nonreceptor) tyr kinase containing Src
homology protein interaction domains (SH3, SH2)
N-terminal to the catalytic tyr kinase domain. It also
contains an N-terminal pleckstrin homology (PH) domain,
which binds the products of PI3K and allows membrane
recruitment and activation, and the Tec homology (TH)
domain, which contains proline-rich and zinc-binding
regions. ITK is expressed in T-cells and mast cells, and
is important in their development and differentiation.
Of the three Tec kinases expressed in T-cells, ITK plays
the predominant role in T-cell receptor (TCR) signaling.
It is activated by phosphorylation upon TCR crosslinking
and is involved in the pathway resulting in
phospholipase C-gamma1 activation and actin
polymerization. It also plays a role in the downstream
signaling of the T-cell costimulatory receptor CD28, the
T-cell surface receptor CD2, and the chemokine receptor
CXCR4. In addition, ITK is crucial for the development
of T-helper(Th)2 effector responses. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 56
Score = 63.5 bits (154), Expect = 4e-13
Identities = 24/55 (43%), Positives = 40/55 (72%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKEK 181
+V+ALY ++ + +L+L EY ++D ++ HWW+V+DKNG GY+PS+Y+ EK
Sbjct: 2 LVIALYDYQTNDPQELALRYNEEYHLLDSSEIHWWRVQDKNGHEGYVPSSYLVEK 56
Score = 48.5 bits (115), Expect = 9e-08
Identities = 17/42 (40%), Positives = 30/42 (71%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNG 115
+V+ALY ++ + +L+L EY ++D ++ HWW+V+DKNG
Sbjct: 2 LVIALYDYQTNDPQELALRYNEEYHLLDSSEIHWWRVQDKNG 43
>gnl|CDD|133172 cd05040, PTKc_Ack_like, Catalytic domain of the Protein Tyrosine
Kinase, Activated Cdc42-associated kinase. Protein
Tyrosine Kinase (PTK) family; Activated Cdc42-associated
kinase (Ack) subfamily; catalytic (c) domain. Ack
subfamily members include Ack1, thirty-eight-negative
kinase 1 (Tnk1), and similar proteins. The PTKc family
is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Ack
subfamily members are cytoplasmic (or nonreceptor) tyr
kinases containing an N-terminal catalytic domain, an
SH3 domain, a Cdc42-binding CRIB domain, and a
proline-rich region. They are mainly expressed in brain
and skeletal tissues and are involved in the regulation
of cell adhesion and growth, receptor degradation, and
axonal guidance. Ack1 is also associated with
androgen-independent prostate cancer progression. Tnk1
regulates TNFalpha signaling and may play an important
role in cell death.
Length = 257
Score = 68.9 bits (169), Expect = 5e-13
Identities = 39/87 (44%), Positives = 56/87 (64%), Gaps = 11/87 (12%)
Query: 435 EELGSGQFGVVRRGKWRGS----IDVAM--MKEGTMSE--DDFIEEAKVMTRLQHQNLVQ 486
++LG G FGVVRRG+W S I VA+ +K +S+ DDF++EA +M L H+NL++
Sbjct: 1 KKLGDGSFGVVRRGEWSTSGGKVIPVAVKCLKSDKLSDIMDDFLKEAAIMHSLDHENLIR 60
Query: 487 LYGVCSKHRPIYIVTDTSSFRLGLLAD 513
LYGV H P+ +VT+ + LG L D
Sbjct: 61 LYGVVLTH-PLMMVTELAP--LGSLLD 84
Score = 61.2 bits (149), Expect = 2e-10
Identities = 21/54 (38%), Positives = 35/54 (64%), Gaps = 1/54 (1%)
Query: 204 LNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQR-GIILEKPKA 256
L FS SDVW +GV +WE+FT G+ P+ L ++++ ++ + G LE+P+A
Sbjct: 172 LRTRTFSHASDVWMFGVTLWEMFTYGEEPWAGLSGSQILKKIDKEGERLERPEA 225
Score = 43.1 bits (102), Expect = 1e-04
Identities = 19/45 (42%), Positives = 26/45 (57%), Gaps = 3/45 (6%)
Query: 4 GSLLNYLRRHENTLGG-NVGLLLDMCIQVCKGMAYLERHNYIHRE 47
GSLL+ LR+ LG + L D +Q+ GM YLE +IHR+
Sbjct: 80 GSLLDRLRKDA--LGHFLISTLCDYAVQIANGMRYLESKRFIHRD 122
>gnl|CDD|133180 cd05049, PTKc_Trk, Catalytic domain of the Protein Tyrosine
Kinases, Tropomyosin Related Kinases. Protein Tyrosine
Kinase (PTK) family; Tropomyosin Related Kinase (Trk)
subfamily; catalytic (c) domain. The Trk subfamily
consists of TrkA, TrkB, TrkC, and similar proteins. The
PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Trk
subfamily members are receptor tyr kinases (RTKs)
containing an extracellular region with arrays of
leucine-rich motifs flanked by two cysteine-rich
clusters followed by two immunoglobulin-like domains, a
transmembrane segment, and an intracellular catalytic
domain. Binding to their ligands, the nerve growth
factor (NGF) family of neutrotrophins, leads to Trk
receptor oligomerization and activation of the catalytic
domain. Trk receptors are mainly expressed in the
peripheral and central nervous systems. They play
important roles in cell fate determination, neuronal
survival and differentiation, as well as in the
regulation of synaptic plasticity. Altered expression of
Trk receptors is associated with many human diseases.
Length = 280
Score = 69.0 bits (169), Expect = 5e-13
Identities = 22/50 (44%), Positives = 40/50 (80%)
Query: 206 YTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
Y +F+++SDVW++GV++WE+FT GK P+ L N EV++ + +G +L++P+
Sbjct: 198 YRKFTTESDVWSFGVVLWEIFTYGKQPWYGLSNEEVIECITQGRLLQRPR 247
Score = 55.5 bits (134), Expect = 2e-08
Identities = 27/80 (33%), Positives = 41/80 (51%), Gaps = 10/80 (12%)
Query: 431 LMLLEELGSGQFGVVRRGKWRGSID--------VAMMKEGTM--SEDDFIEEAKVMTRLQ 480
++L ELG G FG V G+ V +KE + DF EA+++T Q
Sbjct: 7 IVLKRELGEGAFGKVFLGECYHLEPENDKELVAVKTLKETASNDARKDFEREAELLTNFQ 66
Query: 481 HQNLVQLYGVCSKHRPIYIV 500
H+N+V+ YGVC++ P +V
Sbjct: 67 HENIVKFYGVCTEGDPPIMV 86
Score = 33.2 bits (76), Expect = 0.26
Identities = 17/58 (29%), Positives = 26/58 (44%), Gaps = 11/58 (18%)
Query: 1 MRHGSLLNYLRRHE---NTLGG--------NVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M HG L +LR H L + LL + +Q+ GM YL +++HR+
Sbjct: 90 MEHGDLNKFLRSHGPDAAFLKSPDSPMGELTLSQLLQIAVQIASGMVYLASQHFVHRD 147
>gnl|CDD|133247 cd05116, PTKc_Syk, Catalytic domain of the Protein Tyrosine Kinase,
Spleen tyrosine kinase. Protein Tyrosine Kinase (PTK)
family; Spleen tyrosine kinase (Syk); catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Syk,
together with Zap-70, form the Syk subfamily of kinases
which are cytoplasmic (or nonreceptor) tyr kinases
containing two Src homology 2 (SH2) domains N-terminal
to the catalytic tyr kinase domain. Syk was first cloned
from the spleen, and its function in hematopoietic cells
is well-established. Syk is involved in the signaling
downstream of activated receptors (including B-cell and
Fc receptors) that contain ITAMs (immunoreceptor tyr
activation motifs), leading to processes such as cell
proliferation, differentiation, survival, adhesion,
migration, and phagocytosis. More recently, Syk
expression has been detected in other cell types
(including epithelial cells, vascular endothelial cells,
neurons, hepatocytes, and melanocytes), suggesting a
variety of biological functions in non-immune cells. Syk
plays a critical role in maintaining vascular integrity
and in wound healing during embryogenesis. It also
regulates Vav3, which is important in osteoclast
function including bone development. In breast
epithelial cells, where Syk acts as a negative regulator
for epidermal growth factor receptor (EGFR) signaling,
loss of Syk expression is associated with abnormal
proliferation during cancer development suggesting a
potential role as a tumor suppressor. In mice, Syk has
been shown to inhibit malignant transformation of
mammary epithelial cells induced with murine mammary
tumor virus (MMTV).
Length = 257
Score = 68.1 bits (166), Expect = 1e-12
Identities = 26/55 (47%), Positives = 38/55 (69%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPKA 256
+ +NY +FSSKSDVW++GVLMWE F+ G+ PY +K EV ++ G +E P+
Sbjct: 168 ECMNYYKFSSKSDVWSFGVLMWEAFSYGQKPYKGMKGNEVTQMIESGERMECPQR 222
Score = 38.4 bits (89), Expect = 0.005
Identities = 21/64 (32%), Positives = 35/64 (54%), Gaps = 8/64 (12%)
Query: 436 ELGSGQFGVVRRG-----KWRGSIDVAMMKEGTMSE---DDFIEEAKVMTRLQHQNLVQL 487
ELGSG FG V++G K ++ V ++K D+ + EA VM +L + +V++
Sbjct: 2 ELGSGNFGTVKKGMYKMKKSEKTVAVKILKNDNNDPALKDELLREANVMQQLDNPYIVRM 61
Query: 488 YGVC 491
G+C
Sbjct: 62 IGIC 65
Score = 33.4 bits (76), Expect = 0.20
Identities = 15/44 (34%), Positives = 26/44 (59%), Gaps = 3/44 (6%)
Query: 4 GSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
G L +L+++++ N+ L+ QV GM YLE N++HR+
Sbjct: 80 GPLNKFLQKNKHVTEKNITELVH---QVSMGMKYLEETNFVHRD 120
>gnl|CDD|133204 cd05073, PTKc_Hck, Catalytic domain of the Protein Tyrosine Kinase,
Hematopoietic cell kinase. Protein Tyrosine Kinase
(PTK) family; Hematopoietic cell kinase (Hck); catalytic
(c) domain. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
Hck is a member of the Src subfamily of proteins, which
are cytoplasmic (or non-receptor) tyr kinases. Src
kinases contain an N-terminal SH4 domain with a
myristoylation site, followed by SH3 and SH2 domains, a
tyr kinase domain, and a regulatory C-terminal region
containing a conserved tyr. They are activated by
autophosphorylation at the tyr kinase domain, but are
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). Src
proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival, and
differentiation. Hck is present in myeloid and lymphoid
cells that play a role in the development of cancer. It
may be important in the oncogenic signaling of the
protein Tel-Abl, which induces a chronic myelogenous
leukemia (CML)-like disease. Hck also acts as a negative
regulator of granulocyte colony-stimulating factor
(G-CSF)-induced proliferation of granulocytic
precursors, suggesting a possible role in the
development of acute myeloid leukemia (AML). In
addition, Hck is essential in regulating the
degranulation of polymorphonuclear leukocytes (PMNs).
Genetic polymorphisms affect the expression level of
Hck, which affects PMN mediator release and influences
the development of chronic obstructive pulmonary disease
(COPD).
Length = 260
Score = 67.7 bits (165), Expect = 1e-12
Identities = 37/81 (45%), Positives = 50/81 (61%), Gaps = 3/81 (3%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRGSIDVAM--MKEGTMSEDDFIEEAKVMTRLQH 481
WEI L L ++LG+GQFG V + VA+ MK G+MS + F+ EA VM LQH
Sbjct: 1 WEIPRESLKLEKKLGAGQFGEVWMATYNKHTKVAVKTMKPGSMSVEAFLAEANVMKTLQH 60
Query: 482 QNLVQLYGVCSKHRPIYIVTD 502
LV+L+ V +K PIYI+T+
Sbjct: 61 DKLVKLHAVVTK-EPIYIITE 80
Score = 51.2 bits (122), Expect = 3e-07
Identities = 19/52 (36%), Positives = 36/52 (69%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEK 253
+ +N+ F+ KSDVW++G+L+ E+ T G++PY + N EV+ ++RG + +
Sbjct: 173 EAINFGSFTIKSDVWSFGILLMEIVTYGRIPYPGMSNPEVIRALERGYRMPR 224
Score = 45.4 bits (107), Expect = 3e-05
Identities = 21/53 (39%), Positives = 33/53 (62%), Gaps = 5/53 (9%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGL--LLDMCIQVCKGMAYLERHNYIHRETKKS 51
M GSLL++L+ E G L L+D Q+ +GMA++E+ NYIHR+ + +
Sbjct: 82 MAKGSLLDFLKSDE---GSKQPLPKLIDFSAQIAEGMAFIEQRNYIHRDLRAA 131
>gnl|CDD|173629 cd05041, PTKc_Fes_like, Catalytic domain of Fes-like Protein
Tyrosine Kinases. Protein Tyrosine Kinase (PTK) family;
Fes subfamily; catalytic (c) domain. Fes subfamily
members include Fes (or Fps), Fer, and similar proteins.
The PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Fes
subfamily proteins are cytoplasmic (or nonreceptor) tyr
kinases containing an N-terminal region with FCH
(Fes/Fer/CIP4 homology) and coiled-coil domains,
followed by a SH2 domain, and a C-terminal catalytic
domain. The genes for Fes (feline sarcoma) and Fps
(Fujinami poultry sarcoma) were first isolated from
tumor-causing retroviruses. The viral oncogenes encode
chimeric Fes proteins consisting of Gag sequences at the
N-termini, resulting in unregulated tyr kinase activity.
Fes and Fer kinases play roles in haematopoiesis,
inflammation and immunity, growth factor signaling,
cytoskeletal regulation, cell migration and adhesion,
and the regulation of cell-cell interactions. Fes and
Fer show redundancy in their biological functions.
Length = 251
Score = 67.5 bits (165), Expect = 1e-12
Identities = 22/54 (40%), Positives = 37/54 (68%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
+ LNY R++S+SDVW+YG+L+WE F+ G PY + N + +R++ G + P+
Sbjct: 165 EALNYGRYTSESDVWSYGILLWETFSLGDTPYPGMSNQQTRERIESGYRMPAPQ 218
Score = 55.2 bits (133), Expect = 2e-08
Identities = 27/70 (38%), Positives = 45/70 (64%), Gaps = 4/70 (5%)
Query: 435 EELGSGQFGVVRRGKWRGSIDVAMMK-EGTMSEDD---FIEEAKVMTRLQHQNLVQLYGV 490
E++G G FG V +G +G+ +VA+ T+ D F++EA+++ + H N+V+L GV
Sbjct: 1 EKIGKGNFGDVYKGVLKGNTEVAVKTCRSTLPPDLKRKFLQEAEILKQYDHPNIVKLIGV 60
Query: 491 CSKHRPIYIV 500
C + +PIYIV
Sbjct: 61 CVQKQPIYIV 70
Score = 51.3 bits (123), Expect = 4e-07
Identities = 21/47 (44%), Positives = 27/47 (57%), Gaps = 2/47 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
+ GSLL +LR+ +N L V LL M + GM YLE N IHR+
Sbjct: 74 VPGGSLLTFLRKKKNRL--TVKKLLQMSLDAAAGMEYLESKNCIHRD 118
>gnl|CDD|212690 cd00174, SH3, Src Homology 3 domain superfamily. Src Homology 3
(SH3) domains are protein interaction domains that bind
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. Thus, they
are referred to as proline-recognition domains (PRDs).
SH3 domains are less selective and show more diverse
specificity compared to other PRDs. They have been shown
to bind peptide sequences that lack the PxxP motif;
examples include the PxxDY motif of Eps8 and the
RKxxYxxY sequence in SKAP55. SH3 domain containing
proteins play versatile and diverse roles in the cell,
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies, among others. Many members of this
superfamily are adaptor proteins that associate with a
number of protein partners, facilitating complex
formation and signal transduction.
Length = 51
Score = 61.3 bits (150), Expect = 2e-12
Identities = 16/51 (31%), Positives = 27/51 (52%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNY 177
ALY ++A + +LS +KG V++ + WW+ + G G P+NY
Sbjct: 1 YARALYDYEAQDDDELSFKKGDIITVLEKDDDGWWEGELNGGREGLFPANY 51
Score = 45.9 bits (110), Expect = 6e-07
Identities = 12/44 (27%), Positives = 22/44 (50%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGIR 117
ALY ++A + +LS +KG V++ + WW+ + G
Sbjct: 1 YARALYDYEAQDDDELSFKKGDIITVLEKDDDGWWEGELNGGRE 44
>gnl|CDD|133178 cd05046, PTK_CCK4, Pseudokinase domain of the Protein Tyrosine
Kinase, Colon Carcinoma Kinase 4. Protein Tyrosine
Kinase (PTK) family; Colon Carcinoma Kinase 4 (CCK4);
pseudokinase domain. The PTKc (catalytic domain) family,
to which this subfamily belongs, includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. CCK4,
also called protein tyrosine kinase 7 (PTK7), is an
orphan receptor tyr kinase (RTK) containing an
extracellular region with seven immunoglobulin domains,
a transmembrane segment, and an intracellular inactive
pseudokinase domain. Studies in mice reveal that CCK4 is
essential for neural development. Mouse embryos
containing a truncated CCK4 die perinatally and display
craniorachischisis, a severe form of neural tube defect.
The mechanism of action of the CCK4 pseudokinase is
still unknown. Other pseudokinases such as HER3 rely on
the activity of partner RTKs.
Length = 275
Score = 67.1 bits (164), Expect = 2e-12
Identities = 24/40 (60%), Positives = 34/40 (85%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRG 248
FS+KSDVW++GVLMWEVFT G++P+ L + EV++R+Q G
Sbjct: 195 FSTKSDVWSFGVLMWEVFTQGELPFYGLSDEEVLNRLQAG 234
Score = 39.8 bits (93), Expect = 0.002
Identities = 21/76 (27%), Positives = 40/76 (52%), Gaps = 10/76 (13%)
Query: 437 LGSGQFGVVRRGKWRGSID-----VAMMKEGTMSED-----DFIEEAKVMTRLQHQNLVQ 486
LG G+FG V K +G + + ++K ++D +F E + +L H+N+V+
Sbjct: 13 LGRGEFGEVFLAKAKGIEEEGGETLVLVKALQKTKDENLQSEFRRELDMFRKLSHKNVVR 72
Query: 487 LYGVCSKHRPIYIVTD 502
L G+C + P Y++ +
Sbjct: 73 LLGLCREAEPHYMILE 88
Score = 33.6 bits (77), Expect = 0.17
Identities = 7/23 (30%), Positives = 14/23 (60%)
Query: 25 LDMCIQVCKGMAYLERHNYIHRE 47
+ +C Q+ GM +L ++HR+
Sbjct: 120 VALCTQIALGMDHLSNARFVHRD 142
>gnl|CDD|133165 cd05033, PTKc_EphR, Catalytic domain of Ephrin Receptor Protein
Tyrosine Kinases. Protein Tyrosine Kinase (PTK) family;
Ephrin Receptor (EphR) subfamily; catalytic (c) domain.
The PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. EphRs
comprise the largest subfamily of receptor tyr kinases
(RTKs). They can be classified into two classes (EphA
and EphB), according to their extracellular sequences,
which largely correspond to binding preferences for
either GPI-anchored ephrin-A ligands or transmembrane
ephrin-B ligands. Vertebrates have ten EphA and six EhpB
receptors, which display promiscuous ligand interactions
within each class. EphRs contain an ephrin binding
domain and two fibronectin repeats extracellularly, a
transmembrane segment, and a cytoplasmic tyr kinase
domain. Binding of the ephrin ligand to EphR requires
cell-cell contact since both are anchored to the plasma
membrane. This allows ephrin/EphR dimers to form,
leading to the activation of the intracellular tyr
kinase domain. The resulting downstream signals occur
bidirectionally in both EphR-expressing cells (forward
signaling) and ephrin-expressing cells (reverse
signaling). The main effect of ephrin/EphR interaction
is cell-cell repulsion or adhesion. Ephrin/EphR
signaling is important in neural development and
plasticity, cell morphogenesis and proliferation,
cell-fate determination, embryonic development, tissue
patterning, and angiogenesis.
Length = 266
Score = 65.8 bits (161), Expect = 5e-12
Identities = 31/85 (36%), Positives = 50/85 (58%), Gaps = 8/85 (9%)
Query: 426 IDPAELMLLEELGSGQFGVVRRGKWRGS----IDVA--MMKEG--TMSEDDFIEEAKVMT 477
IDP+ + + + +G G+FG V RG+ + IDVA +K G DF+ EA +M
Sbjct: 1 IDPSYVTIEKVIGGGEFGEVCRGRLKLPGKKEIDVAIKTLKAGSSDKQRLDFLTEASIMG 60
Query: 478 RLQHQNLVQLYGVCSKHRPIYIVTD 502
+ H N+++L GV +K RP+ I+T+
Sbjct: 61 QFDHPNIIRLEGVVTKSRPVMIITE 85
Score = 62.7 bits (153), Expect = 6e-11
Identities = 21/52 (40%), Positives = 34/52 (65%)
Query: 204 LNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
+ Y +F+S SDVW++G++MWEV + G+ PY + N +V+ V+ G L P
Sbjct: 180 IAYRKFTSASDVWSFGIVMWEVMSYGERPYWDMSNQDVIKAVEDGYRLPPPM 231
Score = 46.2 bits (110), Expect = 2e-05
Identities = 18/47 (38%), Positives = 26/47 (55%), Gaps = 2/47 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M +GSL +LR ++ VG L+ M + GM YL NY+HR+
Sbjct: 87 MENGSLDKFLRENDGKF--TVGQLVGMLRGIASGMKYLSEMNYVHRD 131
>gnl|CDD|133246 cd05115, PTKc_Zap-70, Catalytic domain of the Protein Tyrosine
Kinase, Zeta-chain-associated protein of 70kDa. Protein
Tyrosine Kinase (PTK) family; Zeta-chain-associated
protein of 70kDa (Zap-70); catalytic (c) domain. The
PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Zap-70 is
a member of the Syk subfamily of kinases, which are
cytoplasmic (or nonreceptor) tyr kinases containing two
Src homology 2 (SH2) domains N-terminal to the catalytic
tyr kinase domain. Zap-70 is primarily expressed in
T-cells and NK cells, and is a crucial component in
T-cell receptor (TCR) signaling. Zap-70 binds the
phosphorylated ITAM (immunoreceptor tyr activation
motif) sequences of the activated TCR zeta-chain through
its SH2 domains, leading to its phosphorylation and
activation. It then phosphorylates target proteins,
which propagate the signals to downstream pathways.
Zap-70 is hardly detected in normal peripheral B-cells,
but is present in some B-cell malignancies. It is used
as a diagnostic marker for chronic lymphocytic leukemia
(CLL) as it is associated with the more aggressive
subtype of the disease.
Length = 257
Score = 65.7 bits (160), Expect = 6e-12
Identities = 23/55 (41%), Positives = 39/55 (70%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPKA 256
+ +N+ +FSS+SDVW+YG+ MWE F+ G+ PY ++K EV+ +++G L+ P
Sbjct: 168 ECINFRKFSSRSDVWSYGITMWEAFSYGQKPYKKMKGPEVMSFIEQGKRLDCPAE 222
Score = 41.5 bits (97), Expect = 5e-04
Identities = 23/63 (36%), Positives = 38/63 (60%), Gaps = 7/63 (11%)
Query: 436 ELGSGQFGVVRRGKWR---GSIDVAM--MKEGTMS--EDDFIEEAKVMTRLQHQNLVQLY 488
ELGSG FG V++G ++ IDVA+ +K D+ + EA++M +L + +V++
Sbjct: 2 ELGSGNFGCVKKGVYKMRKKQIDVAIKVLKNENEKSVRDEMMREAEIMHQLDNPYIVRMI 61
Query: 489 GVC 491
GVC
Sbjct: 62 GVC 64
Score = 28.4 bits (63), Expect = 7.7
Identities = 10/18 (55%), Positives = 13/18 (72%)
Query: 30 QVCKGMAYLERHNYIHRE 47
QV GM YLE N++HR+
Sbjct: 103 QVSMGMKYLEGKNFVHRD 120
>gnl|CDD|173650 cd05094, PTKc_TrkC, Catalytic domain of the Protein Tyrosine
Kinase, Tropomyosin Related Kinase C. Protein Tyrosine
Kinase (PTK) family; Tropomyosin Related Kinase C
(TrkC); catalytic (c) domain. The PTKc family is part of
a larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. TrkC is a member of the
Trk subfamily of proteins, which are receptor tyr
kinases (RTKs) containing an extracellular region with
arrays of leucine-rich motifs flanked by two
cysteine-rich clusters followed by two
immunoglobulin-like domains, a transmembrane segment,
and an intracellular catalytic domain. Binding of TrkC
to its ligand, neurotrophin 3 (NT3), results in receptor
oligomerization and activation of the catalytic domain.
TrkC is broadly expressed in the nervous system and in
some non-neural tissues including the developing heart.
NT3/TrkC signaling plays an important role in the
innervation of the cardiac conducting system and the
development of smooth muscle cells. Mice deficient with
NT3 and TrkC have multiple heart defects. NT3/TrkC
signaling is also critical for the development and
maintenance of enteric neurons that are important for
the control of gut peristalsis.
Length = 291
Score = 65.8 bits (160), Expect = 7e-12
Identities = 24/50 (48%), Positives = 42/50 (84%)
Query: 206 YTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
Y +F+++SDVW++GV++WE+FT GK P+ +L NTEV++ + +G +LE+P+
Sbjct: 199 YRKFTTESDVWSFGVILWEIFTYGKQPWFQLSNTEVIECITQGRVLERPR 248
Score = 45.0 bits (106), Expect = 5e-05
Identities = 27/80 (33%), Positives = 45/80 (56%), Gaps = 9/80 (11%)
Query: 430 ELMLLEELGSGQFGVV--------RRGKWRGSIDVAMMKEGTMS-EDDFIEEAKVMTRLQ 480
+++L ELG G FG V K + + V +K+ T++ DF EA+++T LQ
Sbjct: 6 DIVLKRELGEGAFGKVFLAECYNLSPTKDKMLVAVKALKDPTLAARKDFQREAELLTNLQ 65
Query: 481 HQNLVQLYGVCSKHRPIYIV 500
H+++V+ YGVC P+ +V
Sbjct: 66 HEHIVKFYGVCGDGDPLIMV 85
Score = 32.3 bits (73), Expect = 0.58
Identities = 18/60 (30%), Positives = 28/60 (46%), Gaps = 13/60 (21%)
Query: 1 MRHGSLLNYLRRH-----------ENTLGGNVGL--LLDMCIQVCKGMAYLERHNYIHRE 47
M+HG L +LR H G +GL +L + Q+ GM YL +++HR+
Sbjct: 89 MKHGDLNKFLRAHGPDAMILVDGQPRQAKGELGLSQMLHIASQIASGMVYLASQHFVHRD 148
>gnl|CDD|133168 cd05036, PTKc_ALK_LTK, Catalytic domain of the Protein Tyrosine
Kinases, Anaplastic Lymphoma Kinase and Leukocyte
Tyrosine Kinase. Protein Tyrosine Kinase (PTK) family;
Anaplastic Lymphoma Kinase (ALK) and Leukocyte Tyrosine
(tyr) Kinase (LTK); catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to tyr
residues in protein substrates. ALK and LTK are orphan
receptor tyr kinases (RTKs) whose ligands are not yet
well-defined. RTKs contain an extracellular
ligand-binding domain, a transmembrane region, and an
intracellular tyr kinase domain. They are usually
activated through ligand binding, which causes
dimerization and autophosphorylation of the
intracellular tyr kinase catalytic domain. ALK appears
to play an important role in mammalian neural
development as well as visceral muscle differentiation
in Drosophila. ALK is aberrantly expressed as fusion
proteins, due to chromosomal translocations, in about
60% of anaplastic large cell lymphomas (ALCLs). ALK
fusion proteins are also found in rare cases of diffuse
large B cell lymphomas (DLBCLs). LTK is mainly expressed
in B lymphocytes and neuronal tissues. It is important
in cell proliferation and survival. Transgenic mice
expressing TLK display retarded growth and high
mortality rate. In addition, a polymorphism in mouse and
human LTK is implicated in the pathogenesis of systemic
lupus erythematosus.
Length = 277
Score = 65.5 bits (160), Expect = 7e-12
Identities = 24/47 (51%), Positives = 34/47 (72%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
F+SK+DVW++GVL+WE+F+ G MPY N EV++ V G L+ PK
Sbjct: 198 FTSKTDVWSFGVLLWEIFSLGYMPYPGRTNQEVMEFVTGGGRLDPPK 244
Score = 53.2 bits (128), Expect = 9e-08
Identities = 29/86 (33%), Positives = 43/86 (50%), Gaps = 10/86 (11%)
Query: 425 EIDPAELMLLEELGSGQFGVVRRGKWRG------SIDVAMMKEGTMS----EDDFIEEAK 474
E+ + LL LG G FG V G +RG + VA+ E DF+ EA
Sbjct: 2 EVPRDSITLLRALGHGAFGEVYEGLYRGRDGDAVELQVAVKTLPESCSEQDESDFLMEAL 61
Query: 475 VMTRLQHQNLVQLYGVCSKHRPIYIV 500
+M++ HQN+V+L GV + P +I+
Sbjct: 62 IMSKFNHQNIVRLIGVSFERLPRFIL 87
Score = 33.9 bits (78), Expect = 0.13
Identities = 17/51 (33%), Positives = 24/51 (47%), Gaps = 4/51 (7%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGL----LLDMCIQVCKGMAYLERHNYIHRE 47
M G L ++LR + L LL V KG YLE +++IHR+
Sbjct: 91 MAGGDLKSFLRENRPRPERPSSLTMKDLLFCARDVAKGCKYLEENHFIHRD 141
>gnl|CDD|212699 cd11765, SH3_Nck_1, First Src Homology 3 domain of Nck adaptor
proteins. Nck adaptor proteins regulate actin
cytoskeleton dynamics by linking proline-rich effector
molecules to protein tyrosine kinases and phosphorylated
signaling intermediates. They contain three SH3 domains
and a C-terminal SH2 domain. They function downstream of
the PDGFbeta receptor and are involved in Rho GTPase
signaling and actin dynamics. Vertebrates contain two
Nck adaptor proteins: Nck1 (also called Nckalpha) and
Nck2 (also called Nckbeta or Growth factor
receptor-bound protein 4, Grb4), which show partly
overlapping functions but also bind distinct targets.
Their SH3 domains are involved in recruiting downstream
effector molecules, such as the N-WASP/Arp2/3 complex,
which when activated induces actin polymerization that
results in the production of pedestals, or protrusions
of the plasma membrane. The first SH3 domain of Nck
proteins preferentially binds the PxxDY sequence, which
is present in the CD3e cytoplasmic tail. This binding
inhibits phosphorylation by Src kinases, resulting in
the downregulation of TCR surface expression. SH3
domains are protein interaction domains that usually
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially a PxxP motif. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 51
Score = 59.7 bits (145), Expect = 9e-12
Identities = 22/52 (42%), Positives = 35/52 (67%), Gaps = 1/52 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
VVA Y + A +LS++K + ++DD++ HWWKV++ + GY+PSNYV
Sbjct: 1 YVVAKYDYTAQGDQELSIKKNEKLTLLDDSK-HWWKVQNSSNQTGYVPSNYV 51
Score = 40.1 bits (94), Expect = 7e-05
Identities = 15/42 (35%), Positives = 27/42 (64%), Gaps = 1/42 (2%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNG 115
VVA Y + A +LS++K + ++DD++ HWWKV++ +
Sbjct: 1 YVVAKYDYTAQGDQELSIKKNEKLTLLDDSK-HWWKVQNSSN 41
>gnl|CDD|212701 cd11767, SH3_Nck_3, Third Src Homology 3 domain of Nck adaptor
proteins. This group contains the third SH3 domain of
Nck, the first SH3 domain of Caenorhabditis elegans
Ced-2 (Cell death abnormality protein 2), and similar
domains. Nck adaptor proteins regulate actin
cytoskeleton dynamics by linking proline-rich effector
molecules to protein tyrosine kinases and phosphorylated
signaling intermediates. They contain three SH3 domains
and a C-terminal SH2 domain. They function downstream of
the PDGFbeta receptor and are involved in Rho GTPase
signaling and actin dynamics. Vertebrates contain two
Nck adaptor proteins: Nck1 (also called Nckalpha) and
Nck2 (also called Nckbeta or Growth factor
receptor-bound protein 4, Grb4), which show partly
overlapping functions but also bind distinct targets.
Their SH3 domains are involved in recruiting downstream
effector molecules, such as the N-WASP/Arp2/3 complex,
which when activated induces actin polymerization that
results in the production of pedestals, or protrusions
of the plasma membrane. The third SH3 domain of Nck
appears to prefer ligands with a PxAPxR motif. SH3
domains are protein interaction domains that usually
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially a PxxP motif. Ced-2 is a
cell corpse engulfment protein that interacts with Ced-5
in a pathway that regulates the activation of Ced-10, a
Rac small GTPase.
Length = 56
Score = 59.6 bits (145), Expect = 1e-11
Identities = 23/56 (41%), Positives = 33/56 (58%), Gaps = 2/56 (3%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMD--DTQEHWWKVKDKNGSVGYIPSNYVKE 180
VVVALYPF +LS EKG E+++ + WWK ++ G+ G +P NYV+
Sbjct: 1 VVVALYPFTGENDEELSFEKGERLEIIEKPEDDPDWWKARNALGTTGLVPRNYVEV 56
Score = 43.5 bits (103), Expect = 5e-06
Identities = 18/44 (40%), Positives = 25/44 (56%), Gaps = 2/44 (4%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMD--DTQEHWWKVKDKNG 115
VVVALYPF +LS EKG E+++ + WWK ++ G
Sbjct: 1 VVVALYPFTGENDEELSFEKGERLEIIEKPEDDPDWWKARNALG 44
>gnl|CDD|212783 cd11849, SH3_SPIN90, Src homology 3 domain of SH3 protein
interacting with Nck, 90 kDa (SPIN90). SPIN90 is also
called NCK interacting protein with SH3 domain
(NCKIPSD), Dia-interacting protein (DIP), 54 kDa
vimentin-interacting protein (VIP54), or
WASP-interacting SH3-domain protein (WISH). It is an
F-actin binding protein that regulates actin
polymerization and endocytosis. It associates with the
Arp2/3 complex near actin filaments and determines
filament localization at the leading edge of
lamellipodia. SPIN90 is expressed in the early stages of
neuronal differentiation and plays a role in regulating
growth cone dynamics and neurite outgrowth. It also
interacts with IRSp53 and regulates cell motility by
playing a role in the formation of membrane protrusions.
SPIN90 contains an N-terminal SH3 domain, a proline-rich
domain, and a C-terminal VCA (verprolin-homology and
cofilin-like acidic) domain. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 59.3 bits (144), Expect = 1e-11
Identities = 21/50 (42%), Positives = 32/50 (64%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
ALY FK+ E LS +G + +++ + HWW V + +G GY+P+NYVK
Sbjct: 4 ALYDFKSAEPNTLSFSEGETFLLLERSNAHWWLVTNHSGETGYVPANYVK 53
Score = 38.8 bits (91), Expect = 2e-04
Identities = 14/39 (35%), Positives = 23/39 (58%)
Query: 77 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNG 115
ALY FK+ E LS +G + +++ + HWW V + +G
Sbjct: 4 ALYDFKSAEPNTLSFSEGETFLLLERSNAHWWLVTNHSG 42
>gnl|CDD|173645 cd05084, PTKc_Fes, Catalytic domain of the Protein Tyrosine Kinase,
Fes. Protein Tyrosine Kinase (PTK) family; Fes (or Fps)
kinase subfamily; catalytic (c) domain. The PTKc family
is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Fes
subfamily proteins are cytoplasmic (or nonreceptor) tyr
kinases containing an N-terminal region with FCH
(Fes/Fer/CIP4 homology) and coiled-coil domains,
followed by a SH2 domain, and a C-terminal catalytic
domain. The genes for Fes (feline sarcoma) and Fps
(Fujinami poultry sarcoma) were first isolated from
tumor-causing retroviruses. The viral oncogenes encode
chimeric Fes proteins consisting of Gag sequences at the
N-termini, resulting in unregulated tyr kinase activity.
Fes kinase is expressed in myeloid, vascular
endothelial, epithelial, and neuronal cells. It plays
important roles in cell growth and differentiation,
angiogenesis, inflammation and immunity, and
cytoskeletal regulation. A recent study implicates Fes
kinase as a tumor suppressor in colorectal cancer.
Length = 252
Score = 64.6 bits (157), Expect = 1e-11
Identities = 23/54 (42%), Positives = 39/54 (72%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
+ LNY R+SS+SDVW++G+L+WE F+ G +PY L N + + +++G+ L P+
Sbjct: 166 EALNYGRYSSESDVWSFGILLWEAFSLGAVPYANLSNQQTREAIEQGVRLPCPE 219
Score = 50.8 bits (121), Expect = 4e-07
Identities = 24/73 (32%), Positives = 41/73 (56%), Gaps = 5/73 (6%)
Query: 435 EELGSGQFGVVRRGKWRGSIDVAMMKEGTMS-----EDDFIEEAKVMTRLQHQNLVQLYG 489
E +G G FG V G+ R +K + + F++EA+++ + H N+V+L G
Sbjct: 1 ERIGRGNFGEVFSGRLRADNTPVAVKSCRETLPPDLKAKFLQEARILKQYSHPNIVRLIG 60
Query: 490 VCSKHRPIYIVTD 502
VC++ +PIYIV +
Sbjct: 61 VCTQKQPIYIVME 73
>gnl|CDD|173648 cd05092, PTKc_TrkA, Catalytic domain of the Protein Tyrosine
Kinase, Tropomyosin Related Kinase A. Protein Tyrosine
Kinase (PTK) family; Tropomyosin Related Kinase A
(TrkA); catalytic (c) domain. The PTKc family is part of
a larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. TrkA is a member of the
Trk subfamily of proteins, which are receptor tyr
kinases (RTKs) containing an extracellular region with
arrays of leucine-rich motifs flanked by two
cysteine-rich clusters followed by two
immunoglobulin-like domains, a transmembrane segment,
and an intracellular catalytic domain. Binding of TrkA
to its ligand, nerve growth factor (NGF), results in
receptor oligomerization and activation of the catalytic
domain. TrkA is expressed mainly in neural-crest-derived
sensory and sympathetic neurons of the peripheral
nervous system, and in basal forebrain cholinergic
neurons of the central nervous system. It is critical
for neuronal growth, differentiation and survival.
Alternative TrkA splicing has been implicated as a
pivotal regulator of neuroblastoma (NB) behavior. Normal
TrkA expression is associated with better NB prognosis,
while the hypoxia-regulated TrkAIII splice variant
promotes NB pathogenesis and progression. Aberrant TrkA
expression has also been demonstrated in non-neural
tumors including prostate, breast, lung, and pancreatic
cancers.
Length = 280
Score = 64.6 bits (157), Expect = 1e-11
Identities = 22/51 (43%), Positives = 40/51 (78%)
Query: 206 YTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPKA 256
Y +F+++SD+W++GV++WE+FT GK P+ +L NTE ++ + +G LE+P+
Sbjct: 198 YRKFTTESDIWSFGVVLWEIFTYGKQPWYQLSNTEAIECITQGRELERPRT 248
Score = 47.7 bits (113), Expect = 6e-06
Identities = 29/80 (36%), Positives = 47/80 (58%), Gaps = 9/80 (11%)
Query: 430 ELMLLEELGSGQFGVVRRGKW--------RGSIDVAMMKEGTMS-EDDFIEEAKVMTRLQ 480
+++L ELG G FG V + + + V +KE + S DF EA+++T LQ
Sbjct: 6 DIVLKWELGEGAFGKVFLAECHNLLPEQDKMLVAVKALKEASESARQDFQREAELLTVLQ 65
Query: 481 HQNLVQLYGVCSKHRPIYIV 500
HQ++V+ YGVC++ RP+ +V
Sbjct: 66 HQHIVRFYGVCTEGRPLLMV 85
Score = 33.8 bits (77), Expect = 0.17
Identities = 19/59 (32%), Positives = 29/59 (49%), Gaps = 12/59 (20%)
Query: 1 MRHGSLLNYLRRH----------ENTLGGNVGL--LLDMCIQVCKGMAYLERHNYIHRE 47
MRHG L +LR H E+ G + L +L + Q+ GM YL +++HR+
Sbjct: 89 MRHGDLNRFLRSHGPDAKILAGGEDVAPGQLTLGQMLAIASQIASGMVYLASLHFVHRD 147
>gnl|CDD|212840 cd11907, SH3_TXK, Src Homology 3 domain of TXK, also called Resting
lymphocyte kinase (Rlk). TXK is a cytoplasmic (or
nonreceptor) tyr kinase containing Src homology protein
interaction domains (SH3, SH2) N-terminal to the
catalytic tyr kinase domain. It also contains an
N-terminal cysteine-rich region. Rlk is expressed in
T-cells and mast cell lines, and is a key component of
T-cell receptor (TCR) signaling. It is important in
TCR-stimulated proliferation, IL-2 production and
phospholipase C-gamma1 activation. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 55
Score = 59.2 bits (143), Expect = 2e-11
Identities = 24/53 (45%), Positives = 34/53 (64%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
V ALY F E +L+L++ EY +++ HWWK +D+ G+ G IPSNYV E
Sbjct: 3 VKALYDFLPREPSNLALKRAEEYLILEQYDPHWWKARDRYGNEGLIPSNYVTE 55
Score = 42.6 bits (100), Expect = 9e-06
Identities = 16/41 (39%), Positives = 25/41 (60%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNG 115
V ALY F E +L+L++ EY +++ HWWK +D+ G
Sbjct: 3 VKALYDFLPREPSNLALKRAEEYLILEQYDPHWWKARDRYG 43
>gnl|CDD|133214 cd05083, PTKc_Chk, Catalytic domain of the Protein Tyrosine Kinase,
Csk homologous kinase. Protein Tyrosine Kinase (PTK)
family; Csk homologous kinase (Chk); catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Csk
subfamily kinases are cytoplasmic (or nonreceptor) tyr
kinases containing the Src homology domains, SH3 and
SH2, N-terminal to the catalytic tyr kinase domain. They
negatively regulate the activity of Src kinases that are
anchored to the plasma membrane. Chk is also referred to
as megakaryocyte-associated tyrosine kinase (Matk). To
inhibit Src kinases, Chk is translocated to the membrane
via binding to specific transmembrane proteins,
G-proteins, or adaptor proteins near the membrane. Chk
inhibit Src kinases using a noncatalytic mechanism by
simply binding to them. As a negative regulator of Src
kinases, Chk may play important roles in cell
proliferation, survival, and differentiation, and
consequently, in cancer development and progression. Chk
is expressed in brain and hematopoietic cells. Studies
in mice reveal that Chk is not functionally redundant
with Csk and that it plays an important role as a
regulator of immune responses. Chk also plays a role in
neural differentiation in a manner independent of Src by
enhancing Mapk activation via Ras-mediated signaling.
Length = 254
Score = 63.8 bits (155), Expect = 2e-11
Identities = 26/54 (48%), Positives = 40/54 (74%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
+ L + +FSSKSDVW+YGVL+WEVF+ G+ PY ++ EV + V++G +E P+
Sbjct: 167 EALKHKKFSSKSDVWSYGVLLWEVFSYGRAPYPKMSLKEVKECVEKGYRMEPPE 220
Score = 55.3 bits (133), Expect = 2e-08
Identities = 30/82 (36%), Positives = 47/82 (57%), Gaps = 1/82 (1%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDDFIEEAKVMTRLQHQN 483
W ++ +L L E +G G+FG V +G++ G + ++ F+EE VMT+L H+N
Sbjct: 1 WLLNLQKLTLGEIIGEGEFGAVLQGEYTGQKVAVKNIKCDVTAQAFLEETAVMTKLHHKN 60
Query: 484 LVQLYGVCSKHRPIYIVTDTSS 505
LV+L GV H +YIV + S
Sbjct: 61 LVRLLGVIL-HNGLYIVMELMS 81
Score = 35.7 bits (82), Expect = 0.041
Identities = 18/47 (38%), Positives = 26/47 (55%), Gaps = 1/47 (2%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M G+L+N+LR L +V LL + V +GM YLE +HR+
Sbjct: 80 MSKGNLVNFLRTRGRALV-SVIQLLQFSLDVAEGMEYLESKKLVHRD 125
>gnl|CDD|133213 cd05082, PTKc_Csk, Catalytic domain of the Protein Tyrosine Kinase,
C-terminal Src kinase. Protein Tyrosine Kinase (PTK)
family; C-terminal Src kinase (Csk); catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. The Csk
subfamily kinases are cytoplasmic (or nonreceptor) tyr
kinases containing the Src homology domains, SH3 and
SH2, N-terminal to the catalytic tyr kinase domain. They
negatively regulate the activity of Src kinases that are
anchored to the plasma membrane. To inhibit Src kinases,
Csk is translocated to the membrane via binding to
specific transmembrane proteins, G-proteins, or adaptor
proteins near the membrane. Csk catalyzes the tyr
phosphorylation of the regulatory C-terminal tail of Src
kinases, resulting in their inactivation. Csk is
expressed in a wide variety of tissues. As a negative
regulator of Src, Csk plays a role in cell
proliferation, survival, and differentiation, and
consequently, in cancer development and progression. In
addition, Csk also shows Src-independent functions. It
is a critical component in G-protein signaling, and
plays a role in cytoskeletal reorganization and cell
migration.
Length = 256
Score = 63.8 bits (155), Expect = 2e-11
Identities = 22/53 (41%), Positives = 40/53 (75%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
+ L +FS+KSDVW++G+L+WE+++ G++PY R+ +VV RV++G ++ P
Sbjct: 169 EALREKKFSTKSDVWSFGILLWEIYSFGRVPYPRIPLKDVVPRVEKGYKMDAP 221
Score = 60.0 bits (145), Expect = 4e-10
Identities = 34/81 (41%), Positives = 52/81 (64%), Gaps = 3/81 (3%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRGS-IDVAMMKEGTMSEDDFIEEAKVMTRLQHQ 482
W ++ EL LL+ +G G+FG V G +RG+ + V +K ++ F+ EA VMT+L+H
Sbjct: 1 WALNMKELKLLQTIGKGEFGDVMLGDYRGNKVAVKCIKNDATAQA-FLAEASVMTQLRHS 59
Query: 483 NLVQLYGVCSKHR-PIYIVTD 502
NLVQL GV + + +YIVT+
Sbjct: 60 NLVQLLGVIVEEKGGLYIVTE 80
Score = 47.3 bits (112), Expect = 7e-06
Identities = 22/48 (45%), Positives = 32/48 (66%), Gaps = 3/48 (6%)
Query: 1 MRHGSLLNYLR-RHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M GSL++YLR R + LGG+ LL + VC+ M YLE +N++HR+
Sbjct: 82 MAKGSLVDYLRSRGRSVLGGDC--LLKFSLDVCEAMEYLEANNFVHRD 127
>gnl|CDD|173636 cd05057, PTKc_EGFR_like, Catalytic domain of Epidermal Growth
Factor Receptor-like Protein Tyrosine Kinases. Protein
Tyrosine Kinase (PTK) family; Epidermal Growth Factor
Receptor (EGFR) subfamily; catalytic (c) domain. EGFR
(HER, ErbB) subfamily members include EGFR (HER1,
ErbB1), HER2 (ErbB2), HER3 (ErbB3), HER4 (ErbB4), and
similar proteins. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
The EGFR proteins are receptor tyr kinases (RTKs)
containing an extracellular EGF-related ligand-binding
region, a transmembrane helix, and a cytoplasmic region
with a tyr kinase domain and a regulatory C-terminal
tail. Unlike other tyr kinases, phosphorylation of the
activation loop of EGFR proteins is not critical to
their activation. Instead, they are activated by
ligand-induced dimerization, resulting in the
phosphorylation of tyr residues in the C-terminal tail,
which serve as binding sites for downstream signaling
molecules. Collectively, they can recognize a variety of
ligands including EGF, TGFalpha, and neuregulins, among
others. All four subfamily members can form homo- or
heterodimers. HER3 contains an impaired kinase domain
and depends on its heterodimerization partner for
activation. EGFR subfamily members are involved in
signaling pathways leading to a broad range of cellular
responses including cell proliferation, differentiation,
migration, growth inhibition, and apoptosis. Gain of
function alterations, through their overexpression,
deletions, or point mutations in their kinase domains,
have been implicated in various cancers. These receptors
are targets of many small molecule inhibitors and
monoclonal antibodies used in cancer therapy.
Length = 279
Score = 62.0 bits (151), Expect = 1e-10
Identities = 22/60 (36%), Positives = 35/60 (58%), Gaps = 4/60 (6%)
Query: 195 LTLELIHQVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
+ LE I + ++ KSDVW+YGV +WE+ T G PY + E+ D +++G L +P
Sbjct: 178 MALESIL----HRIYTHKSDVWSYGVTVWELMTFGAKPYEGIPAVEIPDLLEKGERLPQP 233
Score = 54.7 bits (132), Expect = 3e-08
Identities = 20/47 (42%), Positives = 31/47 (65%), Gaps = 2/47 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M G LL+Y+R H++ +G LL+ C+Q+ KGM+YLE +HR+
Sbjct: 90 MPLGCLLDYVRNHKDNIGSQ--YLLNWCVQIAKGMSYLEEKRLVHRD 134
Score = 50.5 bits (121), Expect = 6e-07
Identities = 23/72 (31%), Positives = 37/72 (51%), Gaps = 9/72 (12%)
Query: 429 AELMLLEELGSGQFGVVRRGKWR-----GSIDVAMM----KEGTMSEDDFIEEAKVMTRL 479
EL ++ LGSG FG V +G W I VA+ + + + ++EA VM +
Sbjct: 7 TELEKIKVLGSGAFGTVYKGVWIPEGEKVKIPVAIKVLREETSPKANKEILDEAYVMASV 66
Query: 480 QHQNLVQLYGVC 491
H ++V+L G+C
Sbjct: 67 DHPHVVRLLGIC 78
>gnl|CDD|173649 cd05093, PTKc_TrkB, Catalytic domain of the Protein Tyrosine
Kinase, Tropomyosin Related Kinase B. Protein Tyrosine
Kinase (PTK) family; Tropomyosin Related Kinase B
(TrkB); catalytic (c) domain. The PTKc family is part of
a larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. TrkB is a member of the
Trk subfamily of proteins, which are receptor tyr
kinases (RTKs) containing an extracellular region with
arrays of leucine-rich motifs flanked by two
cysteine-rich clusters followed by two
immunoglobulin-like domains, a transmembrane segment,
and an intracellular catalytic domain. Binding of TrkB
to its ligands, brain-derived neurotrophic factor (BDNF)
or neurotrophin 4 (NT4), results in receptor
oligomerization and activation of the catalytic domain.
TrkB is broadly expressed in the nervous system and in
some non-neural tissues. It plays important roles in
cell proliferation, differentiation, and survival.
BDNF/Trk signaling plays a key role in regulating
activity-dependent synaptic plasticity. TrkB also
contributes to protection against gp120-induced neuronal
cell death. TrkB overexpression is associated with poor
prognosis in neuroblastoma (NB) and other human cancers.
It acts as a suppressor of anoikis (detachment-induced
apoptosis) and contributes to tumor metastasis.
Length = 288
Score = 61.6 bits (149), Expect = 2e-10
Identities = 22/50 (44%), Positives = 40/50 (80%)
Query: 206 YTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
Y +F+++SDVW+ GV++WE+FT GK P+ +L N EV++ + +G +L++P+
Sbjct: 196 YRKFTTESDVWSLGVVLWEIFTYGKQPWYQLSNNEVIECITQGRVLQRPR 245
Score = 41.2 bits (96), Expect = 9e-04
Identities = 25/79 (31%), Positives = 44/79 (55%), Gaps = 9/79 (11%)
Query: 431 LMLLEELGSGQFGVVRRGKW--------RGSIDVAMMKEGT-MSEDDFIEEAKVMTRLQH 481
++L ELG G FG V + + + V +K+ + + DF EA+++T LQH
Sbjct: 7 IVLKRELGEGAFGKVFLAECYNLCPEQDKILVAVKTLKDASDNARKDFHREAELLTNLQH 66
Query: 482 QNLVQLYGVCSKHRPIYIV 500
+++V+ YGVC + P+ +V
Sbjct: 67 EHIVKFYGVCVEGDPLIMV 85
>gnl|CDD|133216 cd05085, PTKc_Fer, Catalytic domain of the Protein Tyrosine Kinase,
Fer. Protein Tyrosine Kinase (PTK) family; Fer kinase;
catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Fer kinase is a member
of the Fes subfamily of proteins which are cytoplasmic
(or nonreceptor) tyr kinases containing an N-terminal
region with FCH (Fes/Fer/CIP4 homology) and coiled-coil
domains, followed by a SH2 domain, and a C-terminal
catalytic domain. Fer kinase is expressed in a wide
variety of tissues, and is found to reside in both the
cytoplasm and the nucleus. It plays important roles in
neuronal polarization and neurite development,
cytoskeletal reorganization, cell migration, growth
factor signaling, and the regulation of cell-cell
interactions mediated by adherens junctions and focal
adhesions. Fer kinase also regulates cell cycle
progression in malignant cells.
Length = 250
Score = 60.8 bits (147), Expect = 2e-10
Identities = 23/54 (42%), Positives = 38/54 (70%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
+ LNY R+SS+SDVW+YG+L+WE F+ G PY + N + ++V++G + P+
Sbjct: 164 EALNYGRYSSESDVWSYGILLWETFSLGVCPYPGMTNQQAREQVEKGYRMSCPQ 217
Score = 51.9 bits (124), Expect = 2e-07
Identities = 28/75 (37%), Positives = 42/75 (56%), Gaps = 10/75 (13%)
Query: 435 EELGSGQFGVVRRGKWRGSIDVAMMKEGTMSED-------DFIEEAKVMTRLQHQNLVQL 487
E LG G FG V +G + VA+ T ED F+ EA+++ + H N+V+L
Sbjct: 1 ELLGKGNFGEVFKGTLKDKTPVAVK---TCKEDLPQELKIKFLSEARILKQYDHPNIVKL 57
Query: 488 YGVCSKHRPIYIVTD 502
GVC++ +PIYIV +
Sbjct: 58 IGVCTQRQPIYIVME 72
Score = 33.0 bits (75), Expect = 0.25
Identities = 16/44 (36%), Positives = 24/44 (54%), Gaps = 2/44 (4%)
Query: 4 GSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
G L++LR+ ++ L L+ + GMAYLE N IHR+
Sbjct: 77 GDFLSFLRKKKDEL--KTKQLVKFALDAAAGMAYLESKNCIHRD 118
>gnl|CDD|133187 cd05056, PTKc_FAK, Catalytic domain of the Protein Tyrosine Kinase,
Focal Adhesion Kinase. Protein Tyrosine Kinase (PTK)
family; Focal Adhesion Kinase (FAK); catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. FAK is a
cytoplasmic (or nonreceptor) tyr kinase that contains an
autophosphorylation site and a FERM domain at the
N-terminus, a central tyr kinase domain, proline-rich
regions, and a C-terminal FAT (focal adhesion targeting)
domain. FAK activity is dependent on integrin-mediated
cell adhesion, which facilitates N-terminal
autophosphorylation. Full activation is achieved by the
phosphorylation of its two adjacent A-loop tyrosines.
FAK is important in mediating signaling initiated at
sites of cell adhesions and at growth factor receptors.
Through diverse molecular interactions, FAK functions as
a biosensor or integrator to control cell motility. It
is a key regulator of cell survival, proliferation,
migration and invasion, and thus plays an important role
in the development and progression of cancer. Src binds
to autophosphorylated FAK forming the FAK-Src dual
kinase complex, which is activated in a wide variety of
tumor cells and generates signals promoting growth and
metastasis. FAK is being developed as a target for
cancer therapy.
Length = 270
Score = 60.9 bits (148), Expect = 2e-10
Identities = 22/51 (43%), Positives = 33/51 (64%)
Query: 204 LNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
+N+ RF+S SDVW +GV MWE+ G P+ +KN +V+ R++ G L P
Sbjct: 180 INFRRFTSASDVWMFGVCMWEILMLGVKPFQGVKNNDVIGRIENGERLPMP 230
Score = 46.6 bits (111), Expect = 1e-05
Identities = 25/85 (29%), Positives = 45/85 (52%), Gaps = 9/85 (10%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRG----SIDVAMMKEGTMSEDD----FIEEAKV 475
+EI ++ L +G GQFG V +G + I VA+ + F++EA +
Sbjct: 1 YEIQREDITLGRCIGEGQFGDVYQGVYMSPENEKIAVAVKTCKNCTSPSVREKFLQEAYI 60
Query: 476 MTRLQHQNLVQLYGVCSKHRPIYIV 500
M + H ++V+L GV +++ P++IV
Sbjct: 61 MRQFDHPHIVKLIGVITEN-PVWIV 84
Score = 39.3 bits (92), Expect = 0.003
Identities = 13/44 (29%), Positives = 26/44 (59%), Gaps = 2/44 (4%)
Query: 4 GSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
G L +YL+ ++ +L ++ L+ Q+ +AYLE ++HR+
Sbjct: 91 GELRSYLQVNKYSL--DLASLILYSYQLSTALAYLESKRFVHRD 132
>gnl|CDD|173623 cd00180, PKc, Catalytic domain of Protein Kinases. Protein Kinases
(PKs), catalytic (c) domain. PKs catalyze the transfer
of the gamma-phosphoryl group from ATP to
serine/threonine or tyrosine residues on protein
substrates. The PK family is part of a larger
superfamily that includes the catalytic domains of RIO
kinases, aminoglycoside phosphotransferase, choline
kinase, phosphoinositide 3-kinase (PI3K), and
actin-fragmin kinase. PKs make up a large family of
serine/threonine kinases, protein tyrosine kinases
(PTKs), and dual-specificity PKs that phosphorylate both
serine/threonine and tyrosine residues of target
proteins. Majority of protein phosphorylation, about
95%, occurs on serine residues while only 1% occurs on
tyrosine residues. Protein phosphorylation is a
mechanism by which a wide variety of cellular proteins,
such as enzymes and membrane channels, are reversibly
regulated in response to certain stimuli. PKs often
function as components of signal transduction pathways
in which one kinase activates a second kinase, which in
turn, may act on other kinases; this sequential action
transmits a signal from the cell surface to target
proteins, which results in cellular responses. The PK
family is one of the largest known protein families with
more than 100 homologous yeast enzymes and 550 human
proteins. A fraction of PK family members are
pseudokinases that lack crucial residues for catalytic
activity. The mutiplicity of kinases allows for specific
regulation according to substrate, tissue distribution,
and cellular localization. PKs regulate many cellular
processes including proliferation, division,
differentiation, motility, survival, metabolism,
cell-cycle progression, cytoskeletal rearrangement,
immunity, and neuronal functions. Many kinases are
implicated in the development of various human diseases
including different types of cancer.
Length = 215
Score = 59.9 bits (146), Expect = 2e-10
Identities = 19/71 (26%), Positives = 38/71 (53%), Gaps = 5/71 (7%)
Query: 437 LGSGQFGVVRRGKWRGS-IDVAM----MKEGTMSEDDFIEEAKVMTRLQHQNLVQLYGVC 491
LG G FG V + + + VA+ ++ + ++ + E +++ +L H N+V+LYGV
Sbjct: 1 LGEGGFGTVYLARDKKTGKKVAIKIIKKEDSSSLLEELLREIEILKKLNHPNIVKLYGVF 60
Query: 492 SKHRPIYIVTD 502
+Y+V +
Sbjct: 61 EDENHLYLVME 71
Score = 44.9 bits (107), Expect = 3e-05
Identities = 14/46 (30%), Positives = 25/46 (54%), Gaps = 2/46 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHR 46
GSL + L+ +E L + +L + +Q+ +G+ YL + IHR
Sbjct: 73 CEGGSLKDLLKENEGKL--SEDEILRILLQILEGLEYLHSNGIIHR 116
Score = 32.6 bits (75), Expect = 0.33
Identities = 9/27 (33%), Positives = 17/27 (62%), Gaps = 3/27 (11%)
Query: 198 ELIHQVLNYTRFSSKSDVWAYGVLMWE 224
E++ Y+ KSD+W+ GV+++E
Sbjct: 163 EVLLGKGYYSE---KSDIWSLGVILYE 186
>gnl|CDD|214567 smart00220, S_TKc, Serine/Threonine protein kinases, catalytic
domain. Phosphotransferases. Serine or
threonine-specific kinase subfamily.
Length = 254
Score = 60.6 bits (148), Expect = 3e-10
Identities = 22/75 (29%), Positives = 40/75 (53%), Gaps = 5/75 (6%)
Query: 433 LLEELGSGQFGVVRRGKWRGS-IDVAM----MKEGTMSEDDFIEEAKVMTRLQHQNLVQL 487
+LE+LG G FG V + + + VA+ K+ + + E K++ +L+H N+V+L
Sbjct: 3 ILEKLGEGSFGKVYLARDKKTGKLVAIKVIKKKKIKKDRERILREIKILKKLKHPNIVRL 62
Query: 488 YGVCSKHRPIYIVTD 502
Y V +Y+V +
Sbjct: 63 YDVFEDEDKLYLVME 77
Score = 38.3 bits (90), Expect = 0.006
Identities = 14/60 (23%), Positives = 28/60 (46%), Gaps = 2/60 (3%)
Query: 203 VLNYTRFSSKSDVWAYGVLMWEVFTCGKMPY-GRLKNTEVVDRVQRGIILEKPKAWYVGD 261
VL + D+W+ GV+++E+ GK P+ G + E+ ++ + P W +
Sbjct: 167 VLLGKGYGKAVDIWSLGVILYELL-TGKPPFPGDDQLLELFKKIGKPKPPFPPPEWDISP 225
Score = 34.4 bits (80), Expect = 0.088
Identities = 9/46 (19%), Positives = 16/46 (34%), Gaps = 3/46 (6%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHR 46
G L + L++ L + Q+ + YL +HR
Sbjct: 79 CEGGDLFDLLKKR-GRL--SEDEARFYLRQILSALEYLHSKGIVHR 121
>gnl|CDD|173630 cd05044, PTKc_c-ros, Catalytic domain of the Protein Tyrosine
Kinase, C-ros. Protein Tyrosine Kinases (PTK) family;
C-ros and Drosophila Sevenless proteins; catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. The
proto-oncogene c-ros encodes an orphan receptor tyr
kinase (RTK) with an unknown ligand. RTKs contain an
extracellular ligand-binding domain, a transmembrane
region, and an intracellular tyr kinase domain. RTKs are
usually activated through ligand binding, which causes
dimerization and autophosphorylation of the
intracellular tyr kinase catalytic domain. C-ros is
expressed in embryonic cells of the kidney, intestine
and lung, but disappears soon after birth. It persists
only in the adult epididymis. Male mice bearing inactive
mutations of c-ros lack the initial segment of the
epididymis and are infertile. The Drosophila protein,
Sevenless, is required for the specification of the R7
photoreceptor cell during eye development.
Length = 269
Score = 60.3 bits (146), Expect = 4e-10
Identities = 24/47 (51%), Positives = 34/47 (72%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
F+++SDVW++GVLMWE+ T G+ PY L N EV+ V G L+KP+
Sbjct: 190 FTTQSDVWSFGVLMWEILTLGQQPYPALNNQEVLQHVTAGGRLQKPE 236
Score = 47.9 bits (114), Expect = 5e-06
Identities = 22/51 (43%), Positives = 29/51 (56%), Gaps = 4/51 (7%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGL----LLDMCIQVCKGMAYLERHNYIHRE 47
M G LL+YLR G L LLD+C+ V KG YLE+ ++IHR+
Sbjct: 81 MEGGDLLSYLRDARVERFGPPLLTLKELLDICLDVAKGCVYLEQMHFIHRD 131
Score = 47.2 bits (112), Expect = 8e-06
Identities = 27/75 (36%), Positives = 42/75 (56%), Gaps = 11/75 (14%)
Query: 437 LGSGQFGVVRRGKWR-------GSIDVAM--MKEGTMSED--DFIEEAKVMTRLQHQNLV 485
LGSG FG V G G I VA+ +++G ++ +F++EA +M+ H N+V
Sbjct: 3 LGSGAFGEVYEGTATDILGPGSGPIRVAVKTLRKGATDQEKKEFLKEAHLMSNFNHPNIV 62
Query: 486 QLYGVCSKHRPIYIV 500
+L GVC + P YI+
Sbjct: 63 KLLGVCLLNEPQYII 77
>gnl|CDD|133181 cd05050, PTKc_Musk, Catalytic domain of the Protein Tyrosine
Kinase, Muscle-specific kinase. Protein Tyrosine Kinase
(PTK) family; Muscle-specific kinase (Musk); catalytic
(c) domain. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
Musk is a receptor tyr kinase (RTK) containing an
extracellular region with four immunoglobulin-like
domains and a cysteine-rich cluster, a transmembrane
segment, and an intracellular catalytic domain. Musk is
expressed and concentrated in the postsynaptic membrane
in skeletal muscle. It is essential for the
establishment of the neuromuscular junction (NMJ), a
peripheral synapse that conveys signals from motor
neurons to muscle cells. Agrin, a large proteoglycan
released from motor neurons, stimulates Musk
autophosphorylation and activation, leading to the
clustering of acetylcholine receptors (AChRs). To date,
there is no evidence to suggest that agrin binds
directly to Musk. Mutations in AChR, Musk and other
partners are responsible for diseases of the NMJ, such
as the autoimmune syndrome myasthenia gravis.
Length = 288
Score = 60.2 bits (146), Expect = 5e-10
Identities = 22/49 (44%), Positives = 35/49 (71%)
Query: 206 YTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
Y R++++SDVWAYGV++WE+F+ G PY + + EV+ V+ G +L P
Sbjct: 206 YNRYTTESDVWAYGVVLWEIFSYGMQPYYGMAHEEVIYYVRDGNVLSCP 254
Score = 42.9 bits (101), Expect = 2e-04
Identities = 24/83 (28%), Positives = 39/83 (46%), Gaps = 10/83 (12%)
Query: 425 EIDPAELMLLEELGSGQFGVVRRGKWRG--------SIDVAMMKEG--TMSEDDFIEEAK 474
E + + ++G G FG V + + G + V M+KE + DF EA
Sbjct: 1 EYPRNNIEYVRDIGQGAFGRVFQARAPGLLPYEPFTMVAVKMLKEEASADMQADFQREAA 60
Query: 475 VMTRLQHQNLVQLYGVCSKHRPI 497
+M H N+V+L GVC+ +P+
Sbjct: 61 LMAEFDHPNIVKLLGVCAVGKPM 83
Score = 31.7 bits (72), Expect = 0.80
Identities = 17/66 (25%), Positives = 24/66 (36%), Gaps = 19/66 (28%)
Query: 1 MRHGSLLNYLRRH-------------------ENTLGGNVGLLLDMCIQVCKGMAYLERH 41
M +G L +LR N L + L + QV GMAYL
Sbjct: 90 MAYGDLNEFLRHRSPRAQCSLSHSTSSARKCGLNPLPLSCTEQLCIAKQVAAGMAYLSER 149
Query: 42 NYIHRE 47
++HR+
Sbjct: 150 KFVHRD 155
>gnl|CDD|199827 cd09933, SH2_Src_family, Src homology 2 (SH2) domain found in the
Src family of non-receptor tyrosine kinases. The Src
family kinases are nonreceptor tyrosine kinases that
have been implicated in pathways regulating
proliferation, angiogenesis, invasion and metastasis,
and bone metabolism. It is thought that transforming
ability of Src is linked to its ability to activate key
signaling molecules in these pathways, rather than
through direct activity. As such blocking Src activation
has been a target for drug companies. Src family members
can be divided into 3 groups based on their expression
pattern: 1) Src, Fyn, and Yes; 2) Blk, Fgr, Hck, Lck,
and Lyn; and 3) Frk-related kinases Frk/Rak and Iyk/Bsk
Of these, cellular c-Src is the best studied and most
frequently implicated in oncogenesis. The c-Src contains
five distinct regions: a unique N-terminal domain, an
SH3 domain, an SH2 domain, a kinase domain and a
regulatory tail, as do the other members of the family.
Src exists in both active and inactive conformations.
Negative regulation occurs through phosphorylation of
Tyr, resulting in an intramolecular association between
phosphorylated Tyr and the SH2 domain of SRC, which
locks the protein in a closed conformation. Further
stabilization of the inactive state occurs through
interactions between the SH3 domain and a proline-rich
stretch of residues within the kinase domain.
Conversely, dephosphorylation of Tyr allows SRC to
assume an open conformation. Full activity requires
additional autophosphorylation of a Tyr residue within
the catalytic domain. Loss of the negative-regulatory
C-terminal segment has been shown to result in increased
activity and transforming potential. Phosphorylation of
the C-terminal Tyr residue by C-terminal Src kinase
(Csk) and Csk homology kinase results in increased
intramolecular interactions and consequent Src
inactivation. Specific phosphatases, protein tyrosine
phosphatase a (PTPa) and the SH-containing phosphatases
SHP1/SHP2, have also been shown to take a part in Src
activation. Src is also activated by direct binding of
focal adhesion kinase (Fak) and Crk-associated substrate
(Cas) to the SH2 domain. SRC activity can also be
regulated by numerous receptor tyrosine kinases (RTKs),
such as Her2, epidermal growth factor receptor (EGFR),
fibroblast growth factor receptor, platelet-derived
growth factor receptor (PDGFR), and vascular endothelial
growth factor receptor (VEGFR). In general SH2 domains
are involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 101
Score = 55.3 bits (134), Expect = 9e-10
Identities = 22/79 (27%), Positives = 42/79 (53%), Gaps = 4/79 (5%)
Query: 257 WYVGDMSRQRAESILKQ-EDKEGCFVVRNS-STKGLYTLSL--YTKVPHPHVKHYHIKQN 312
W+ G + R+ AE +L + G F++R S +T G Y+LS+ VKHY I++
Sbjct: 5 WFFGKIKRKDAEKLLLAPGNPRGTFLIRESETTPGAYSLSVRDGDDARGDTVKHYRIRKL 64
Query: 313 SRGEFFLSEKHCCHSIPEV 331
G ++++ + ++ E+
Sbjct: 65 DNGGYYITTRATFPTLQEL 83
Score = 53.0 bits (128), Expect = 7e-09
Identities = 21/72 (29%), Positives = 40/72 (55%), Gaps = 3/72 (4%)
Query: 336 GCFVVRNS-STKGLYTLSL--YTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVNY 392
G F++R S +T G Y+LS+ VKHY I++ G ++++ + ++ E+V +
Sbjct: 27 GTFLIRESETTPGAYSLSVRDGDDARGDTVKHYRIRKLDNGGYYITTRATFPTLQELVQH 86
Query: 393 HRHNSGGLASRL 404
+ ++ GL RL
Sbjct: 87 YSKDADGLCCRL 98
>gnl|CDD|212940 cd12007, SH3_Yes, Src homology 3 domain of Yes Protein Tyrosine
Kinase. Yes (or c-Yes) is a member of the Src subfamily
of proteins, which are cytoplasmic (or non-receptor)
PTKs. c-Yes kinase is the cellular homolog of the
oncogenic protein (v-Yes) encoded by the Yamaguchi 73
and Esh sarcoma viruses. It displays functional overlap
with other Src subfamily members, particularly Src. It
also shows some unique functions such as binding to
occludins, transmembrane proteins that regulate
extracellular interactions in tight junctions. Yes also
associates with a number of proteins in different cell
types that Src does not interact with, like JAK2 and
gp130 in pre-adipocytes, and Pyk2 in treated pulmonary
vein endothelial cells. Although the biological function
of Yes remains unclear, it appears to have a role in
regulating cell-cell interactions and vesicle
trafficking in polarized cells. Src kinases contain an
N-terminal SH4 domain with a myristoylation site,
followed by SH3 and SH2 domains, a tyr kinase domain,
and a regulatory C-terminal region containing a
conserved tyr. They are activated by autophosphorylation
at the tyr kinase domain, but are negatively regulated
by phosphorylation at the C-terminal tyr by Csk
(C-terminal Src Kinase). The SH3 domain of Src kinases
contributes to substrate recruitment by binding adaptor
proteins/substrates, and regulation of kinase activity
through an intramolecular interaction. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 58
Score = 54.3 bits (130), Expect = 1e-09
Identities = 22/53 (41%), Positives = 35/53 (66%), Gaps = 1/53 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKN-GSVGYIPSNYV 178
+ VALY ++A DLS +KG ++++++T+ WW+ + G GYIPSNYV
Sbjct: 2 IFVALYDYEARTTEDLSFKKGERFQIINNTEGDWWEARSIATGKNGYIPSNYV 54
Score = 38.1 bits (88), Expect = 5e-04
Identities = 13/41 (31%), Positives = 26/41 (63%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKN 114
+ VALY ++A DLS +KG ++++++T+ WW+ +
Sbjct: 2 IFVALYDYEARTTEDLSFKKGERFQIINNTEGDWWEARSIA 42
>gnl|CDD|173625 cd05032, PTKc_InsR_like, Catalytic domain of Insulin Receptor-like
Protein Tyrosine Kinases. Protein Tyrosine Kinase (PTK)
family; Insulin Receptor (InsR) subfamily; catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). The InsR subfamily
is composed of InsR, Insulin-like Growth Factor-1
Receptor (IGF-1R), and similar proteins. PTKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. InsR and
IGF-1R are receptor tyr kinases (RTKs) composed of two
alphabeta heterodimers. Binding of the ligand (insulin,
IGF-1, or IGF-2) to the extracellular alpha subunit
activates the intracellular tyr kinase domain of the
transmembrane beta subunit. Receptor activation leads to
autophosphorylation, stimulating downstream kinase
activities, which initiate signaling cascades and
biological function. InsR and IGF-1R, which share 84%
sequence identity in their kinase domains, display
physiologically distinct yet overlapping functions in
cell growth, differentiation, and metabolism. InsR
activation leads primarily to metabolic effects while
IGF-1R activation stimulates mitogenic pathways. In
cells expressing both receptors, InsR/IGF-1R hybrids are
found together with classical receptors. Both receptors
can interact with common adaptor molecules such as IRS-1
and IRS-2.
Length = 277
Score = 58.9 bits (143), Expect = 1e-09
Identities = 21/47 (44%), Positives = 32/47 (68%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
F++KSDVW++GV++WE+ T + PY L N EV+ V G L+ P+
Sbjct: 198 FTTKSDVWSFGVVLWEMATLAEQPYQGLSNEEVLKFVIDGGHLDLPE 244
Score = 51.2 bits (123), Expect = 4e-07
Identities = 28/90 (31%), Positives = 45/90 (50%), Gaps = 16/90 (17%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRGSID------VAMMKEGTMSEDD-------FI 470
WE+ ++ L+ ELG G FG+V G +G + VA+ T++E+ F+
Sbjct: 1 WELPREKITLIRELGQGSFGMVYEGLAKGVVKGEPETRVAIK---TVNENASMRERIEFL 57
Query: 471 EEAKVMTRLQHQNLVQLYGVCSKHRPIYIV 500
EA VM ++V+L GV S +P +V
Sbjct: 58 NEASVMKEFNCHHVVRLLGVVSTGQPTLVV 87
Score = 46.2 bits (110), Expect = 2e-05
Identities = 17/54 (31%), Positives = 24/54 (44%), Gaps = 7/54 (12%)
Query: 1 MRHGSLLNYLRRH----ENTLGGNV---GLLLDMCIQVCKGMAYLERHNYIHRE 47
M G L +YLR EN G + M ++ GMAYL ++HR+
Sbjct: 91 MAKGDLKSYLRSRRPEAENNPGLGPPTLQKFIQMAAEIADGMAYLAAKKFVHRD 144
>gnl|CDD|173639 cd05066, PTKc_EphR_A, Catalytic domain of the Protein Tyrosine
Kinases, Class EphA Ephrin Receptors. Protein Tyrosine
Kinase (PTK) family; Ephrin Receptor (EphR) subfamily;
most class EphA receptors including EphA3, EphA4, EphA5,
and EphA7, but excluding EphA1, EphA2 and EphA10;
catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. EphRs comprise the
largest subfamily of receptor tyr kinases (RTKs). In
general, class EphA receptors bind GPI-anchored ephrin-A
ligands. There are ten vertebrate EphA receptors
(EphA1-10), which display promiscuous interactions with
six ephrin-A ligands. One exception is EphA4, which also
binds ephrins-B2/B3. EphRs contain an ephrin-binding
domain and two fibronectin repeats extracellularly, a
transmembrane segment, and a cytoplasmic tyr kinase
domain. Binding of the ephrin ligand to EphR requires
cell-cell contact since both are anchored to the plasma
membrane. The resulting downstream signals occur
bidirectionally in both EphR-expressing cells (forward
signaling) and ephrin-expressing cells (reverse
signaling). Ephrin/EphR interaction mainly results in
cell-cell repulsion or adhesion, making it important in
neural development and plasticity, cell morphogenesis,
cell-fate determination, embryonic development, tissue
patterning, and angiogenesis. EphARs and ephrin-A
ligands are expressed in multiple areas of the
developing brain, especially in the retina and tectum.
They are part of a system controlling retinotectal
mapping.
Length = 267
Score = 58.4 bits (141), Expect = 2e-09
Identities = 21/53 (39%), Positives = 35/53 (66%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
+ + Y +F+S SDVW+YG++MWEV + G+ PY + N +V+ ++ G L P
Sbjct: 179 EAIAYRKFTSASDVWSYGIVMWEVMSYGERPYWEMSNQDVIKAIEEGYRLPAP 231
Score = 48.7 bits (116), Expect = 3e-06
Identities = 26/85 (30%), Positives = 49/85 (57%), Gaps = 8/85 (9%)
Query: 426 IDPAELMLLEELGSGQFGVVRRGKWR--GSIDVAM----MKEGTMSED--DFIEEAKVMT 477
ID + + + + +G+G+FG V G+ + G ++ + +K G + DF+ EA +M
Sbjct: 1 IDASCIKIEKVIGAGEFGEVCSGRLKLPGKREIPVAIKTLKAGYTEKQRRDFLSEASIMG 60
Query: 478 RLQHQNLVQLYGVCSKHRPIYIVTD 502
+ H N++ L GV +K +P+ IVT+
Sbjct: 61 QFDHPNIIHLEGVVTKSKPVMIVTE 85
Score = 32.9 bits (75), Expect = 0.32
Identities = 17/47 (36%), Positives = 25/47 (53%), Gaps = 2/47 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M +GSL +LR+H+ V L+ M + GM YL Y+HR+
Sbjct: 87 MENGSLDAFLRKHDGQF--TVIQLVGMLRGIASGMKYLSDMGYVHRD 131
>gnl|CDD|133194 cd05063, PTKc_EphR_A2, Catalytic domain of the Protein Tyrosine
Kinase, Ephrin Receptor A2. Protein Tyrosine Kinase
(PTK) family; Ephrin Receptor (EphR) subfamily; EphA2
receptor; catalytic (c) domain. The PTKc family is part
of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. EphRs
comprise the largest subfamily of receptor tyr kinases
(RTKs). In general, class EphA receptors bind
GPI-anchored ephrin-A ligands. There are ten vertebrate
EphA receptors (EphA1-10), which display promiscuous
interactions with six ephrin-A ligands. EphRs contain an
ephrin binding domain and two fibronectin repeats
extracellularly, a transmembrane segment, and a
cytoplasmic tyr kinase domain. Binding of the ephrin
ligand to EphR requires cell-cell contact since both are
anchored to the plasma membrane. The resulting
downstream signals occur bidirectionally in both
EphR-expressing cells (forward signaling) and
ephrin-expressing cells (reverse signaling). Ephrin/EphR
interaction mainly results in cell-cell repulsion or
adhesion, making it important in neural development and
plasticity, cell morphogenesis, cell-fate determination,
embryonic development, tissue patterning, and
angiogenesis. The EphA2 receptor is overexpressed in
tumor cells and tumor blood vessels in a variety of
cancers including breast, prostate, lung, and colon. As
a result, it is an attractive target for drug design
since its inhibition could affect several aspects of
tumor progression.
Length = 268
Score = 57.3 bits (138), Expect = 4e-09
Identities = 21/53 (39%), Positives = 34/53 (64%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
+ + Y +F+S SDVW++G++MWEV + G+ PY + N EV+ + G L P
Sbjct: 180 EAIAYRKFTSASDVWSFGIVMWEVMSFGERPYWDMSNHEVMKAINDGFRLPAP 232
Score = 52.3 bits (125), Expect = 2e-07
Identities = 26/86 (30%), Positives = 48/86 (55%), Gaps = 8/86 (9%)
Query: 425 EIDPAELMLLEELGSGQFGVVRRG------KWRGSIDVAMMKEGTMSE--DDFIEEAKVM 476
EI P+ + + +G+G+FG V RG + ++ + +K G + DF+ EA +M
Sbjct: 1 EIHPSHITKQKVIGAGEFGEVFRGILKMPGRKEVAVAIKTLKPGYTEKQRQDFLSEASIM 60
Query: 477 TRLQHQNLVQLYGVCSKHRPIYIVTD 502
+ H N+++L GV +K +P I+T+
Sbjct: 61 GQFSHHNIIRLEGVVTKFKPAMIITE 86
Score = 32.6 bits (74), Expect = 0.42
Identities = 17/47 (36%), Positives = 25/47 (53%), Gaps = 2/47 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M +G+L YLR H+ + L+ M + GM YL NY+HR+
Sbjct: 88 MENGALDKYLRDHDGEF--SSYQLVGMLRGIAAGMKYLSDMNYVHRD 132
>gnl|CDD|133220 cd05089, PTKc_Tie1, Catalytic domain of the Protein Tyrosine
Kinase, Tie1. Protein Tyrosine Kinase (PTK) family;
Tie1; catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Tie1 is a receptor tyr
kinase (RTK) containing an extracellular region, a
transmembrane segment, and an intracellular catalytic
domain. The extracellular region contains an
immunoglobulin (Ig)-like domain, three epidermal growth
factor (EGF)-like domains, a second Ig-like domain, and
three fibronectin type III repeats. Tie receptors are
specifically expressed in endothelial cells and
hematopoietic stem cells. No specific ligand has been
identified for Tie1, although the angiopoietin, Ang-1,
binds to Tie1 through integrins at high concentrations.
In vivo studies of Tie1 show that it is critical in
vascular development.
Length = 297
Score = 57.7 bits (139), Expect = 4e-09
Identities = 21/54 (38%), Positives = 39/54 (72%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
+ LNY+ +++KSDVW++GVL+WE+ + G PY + E+ +++ +G +EKP+
Sbjct: 188 ESLNYSVYTTKSDVWSFGVLLWEIVSLGGTPYCGMTCAELYEKLPQGYRMEKPR 241
Score = 35.4 bits (81), Expect = 0.051
Identities = 20/78 (25%), Positives = 38/78 (48%), Gaps = 8/78 (10%)
Query: 437 LGSGQFG-----VVRRGKWRGSIDVAMMKEGTMSED--DFIEEAKVMTRL-QHQNLVQLY 488
+G G FG ++++ + + + M+KE D DF E +V+ +L H N++ L
Sbjct: 10 IGEGNFGQVIRAMIKKDGLKMNAAIKMLKEFASENDHRDFAGELEVLCKLGHHPNIINLL 69
Query: 489 GVCSKHRPIYIVTDTSSF 506
G C +YI + + +
Sbjct: 70 GACENRGYLYIAIEYAPY 87
>gnl|CDD|173632 cd05051, PTKc_DDR, Catalytic domain of the Protein Tyrosine
Kinases, Discoidin Domain Receptors. Protein Tyrosine
Kinase (PTK) family; Discoidin Domain Receptor (DDR)
subfamily; catalytic (c) domain. The DDR subfamily
consists of homologs of mammalian DDR1, DDR2, and
similar proteins. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
DDR subfamily members are receptor tyr kinases (RTKs)
containing an extracellular discoidin homology domain, a
transmembrane segment, an extended juxtamembrane region,
and an intracellular catalytic domain. The binding of
the ligand, collagen, to DDRs results in a slow but
sustained receptor activation. DDRs regulate cell
adhesion, proliferation, and extracellular matrix
remodeling. They have been linked to a variety of human
cancers including breast, colon, ovarian, brain, and
lung. There is no evidence showing that DDRs act as
transforming oncogenes. They are more likely to play a
role in the regulation of tumor growth and metastasis.
Length = 296
Score = 57.4 bits (139), Expect = 4e-09
Identities = 21/58 (36%), Positives = 33/58 (56%), Gaps = 8/58 (13%)
Query: 207 TRFSSKSDVWAYGVLMWEVFT-CGKMPYGRLKNTEVVD---RVQRG----IILEKPKA 256
+F++KSDVWA+GV +WE+ T C + PY L + +V++ R I L +P
Sbjct: 207 GKFTTKSDVWAFGVTLWEILTLCREQPYEHLTDQQVIENAGHFFRDDGRQIYLPRPPN 264
Score = 54.7 bits (132), Expect = 3e-08
Identities = 22/93 (23%), Positives = 41/93 (44%), Gaps = 21/93 (22%)
Query: 431 LMLLEELGSGQFGVV----------------RRGKWRGSID---VAMMKEGTMSE--DDF 469
L +E+LG GQFG V + V +++ +DF
Sbjct: 7 LNFVEKLGEGQFGEVHLCEADGLQDFSEKAFAENDNADAPVLVAVKVLRPDASDNAREDF 66
Query: 470 IEEAKVMTRLQHQNLVQLYGVCSKHRPIYIVTD 502
++E K+++RL N+ +L GVC+ P+ ++ +
Sbjct: 67 LKEVKILSRLSDPNIARLLGVCTVDPPLCMIME 99
Score = 45.4 bits (108), Expect = 3e-05
Identities = 19/55 (34%), Positives = 28/55 (50%), Gaps = 8/55 (14%)
Query: 1 MRHGSLLNYLRRHE---NTLGGNV-----GLLLDMCIQVCKGMAYLERHNYIHRE 47
M +G L +L++H + L N LL M Q+ GM YLE N++HR+
Sbjct: 101 MENGDLNQFLQKHVAETSGLACNSKSLSFSTLLYMATQIASGMRYLESLNFVHRD 155
>gnl|CDD|133179 cd05048, PTKc_Ror, Catalytic Domain of the Protein Tyrosine
Kinases, Receptor tyrosine kinase-like Orphan Receptors.
Protein Tyrosine Kinase (PTK) family; Receptor tyrosine
kinase-like Orphan Receptor (Ror) subfamily; catalytic
(c) domain. The Ror subfamily consists of Ror1, Ror2,
and similar proteins. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Ror proteins are orphan
receptor tyr kinases (RTKs) containing an extracellular
region with immunoglobulin-like, cysteine-rich, and
kringle domains, a transmembrane segment, and an
intracellular catalytic domain. Ror RTKs are unrelated
to the nuclear receptor subfamily called
retinoid-related orphan receptors (RORs). RTKs are
usually activated through ligand binding, which causes
dimerization and autophosphorylation of the
intracellular tyr kinase catalytic domain. Ror kinases
are expressed in many tissues during development. They
play important roles in bone and heart formation.
Mutations in human Ror2 result in two different bone
development genetic disorders, recessive Robinow
syndrome and brachydactyly type B. Drosophila Ror is
expressed only in the developing nervous system during
neurite outgrowth and neuronal differentiation,
suggesting a role for Drosophila Ror in neural
development. More recently, mouse Ror1 and Ror2 have
also been found to play an important role in regulating
neurite growth in central neurons. Ror1 and Ror2 are
believed to have some overlapping and redundant
functions.
Length = 283
Score = 57.5 bits (139), Expect = 4e-09
Identities = 18/49 (36%), Positives = 34/49 (69%)
Query: 206 YTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
Y +F+++SD+W++GV++WE+F+ G PY N EV++ ++ +L P
Sbjct: 200 YGKFTTESDIWSFGVVLWEIFSYGLQPYYGFSNQEVIEMIRSRQLLPCP 248
Score = 54.4 bits (131), Expect = 4e-08
Identities = 31/82 (37%), Positives = 47/82 (57%), Gaps = 10/82 (12%)
Query: 425 EIDPAELMLLEELGSGQFGVVRRGKWRG--------SIDVAMMKEGTM--SEDDFIEEAK 474
EI + + LEELG G FG V +G+ G S+ + +KE + +F +EA+
Sbjct: 1 EIPLSAVRFLEELGEGAFGKVYKGELTGPNERLSATSVAIKTLKENAEPKVQQEFRQEAE 60
Query: 475 VMTRLQHQNLVQLYGVCSKHRP 496
+M+ LQH N+V L GVC+K +P
Sbjct: 61 LMSDLQHPNIVCLLGVCTKEQP 82
Score = 31.3 bits (71), Expect = 1.1
Identities = 15/60 (25%), Positives = 24/60 (40%), Gaps = 13/60 (21%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGL-------------LLDMCIQVCKGMAYLERHNYIHRE 47
+ HG L +L R+ L + IQ+ GM YL H+++HR+
Sbjct: 90 LAHGDLHEFLVRNSPHSDVGAESGDETVKSSLDCSDFLHIAIQIAAGMEYLSSHHFVHRD 149
>gnl|CDD|199831 cd10369, SH2_Src_Frk, Src homology 2 (SH2) domain found in the
Fyn-related kinase (Frk). Frk is a member of the Src
non-receptor type tyrosine kinase family of proteins.
The Frk subfamily is composed of Frk/Rak and
Iyk/Bsk/Gst. It is expressed primarily epithelial cells.
Frk is a nuclear protein and may function during G1 and
S phase of the cell cycle and suppress growth. Unlike
the other Src members it lacks a glycine at position 2
of SH4 which is important for addition of a myristic
acid moiety that is involved in targeting Src PTKs to
cellular membranes. FRK and SHB exert similar effects
when overexpressed in rat phaeochromocytoma (PC12) and
beta-cells, where both induce PC12 cell differentiation
and beta-cell proliferation. Under conditions that cause
beta-cell degeneration these proteins augment beta-cell
apoptosis. The FRK-SHB responses involve FAK and insulin
receptor substrates (IRS) -1 and -2. Frk has been
demonstrated to interact with retinoblastoma protein.
Frk regulates PTEN protein stability by phosphorylating
PTEN, which in turn prevents PTEN degradation. Frk also
plays a role in regulation of embryonal pancreatic beta
cell formation. Frk has a unique N-terminal domain, an
SH3 domain, an SH2 domain, a kinase domain and a
regulatory tail, as do the other members of the family.
Like the other members of the Src family the SH2 domain
in addition to binding the target, also plays an
autoinhibitory role by binding to its activation loop.
The tryosine involved is at the same site as the
tyrosine involved in the autophosphorylation of Src. In
general SH2 domains are involved in signal transduction.
They typically bind pTyr-containing ligands via two
surface pockets, a pTyr and hydrophobic binding pocket,
allowing proteins with SH2 domains to localize to
tyrosine phosphorylated sites.
Length = 96
Score = 53.3 bits (128), Expect = 5e-09
Identities = 26/76 (34%), Positives = 42/76 (55%), Gaps = 5/76 (6%)
Query: 257 WYVGDMSRQRAE-SILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSR 314
W+ G + R AE +L E++ G F++R S S KG ++LS+ VKHY I++
Sbjct: 5 WFFGAIKRADAEKQLLYSENQTGAFLIRESESQKGEFSLSVLDG---GVVKHYRIRRLDE 61
Query: 315 GEFFLSEKHCCHSIPE 330
G FFL+ + ++ E
Sbjct: 62 GGFFLTRRKTFSTLNE 77
Score = 52.2 bits (125), Expect = 1e-08
Identities = 26/73 (35%), Positives = 41/73 (56%), Gaps = 4/73 (5%)
Query: 333 DKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVN 391
++ G F++R S S KG ++LS+ VKHY I++ G FFL+ + ++ E VN
Sbjct: 24 NQTGAFLIRESESQKGEFSLSVLDG---GVVKHYRIRRLDEGGFFLTRRKTFSTLNEFVN 80
Query: 392 YHRHNSGGLASRL 404
Y+ S GL +L
Sbjct: 81 YYTTTSDGLCVKL 93
>gnl|CDD|133219 cd05088, PTKc_Tie2, Catalytic domain of the Protein Tyrosine
Kinase, Tie2. Protein Tyrosine Kinase (PTK) family;
Tie2; catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Tie2 is a receptor tyr
kinase (RTK) containing an extracellular region, a
transmembrane segment, and an intracellular catalytic
domain. The extracellular region contains an
immunoglobulin (Ig)-like domain, three epidermal growth
factor (EGF)-like domains, a second Ig-like domain, and
three fibronectin type III repeats. Tie2 is expressed
mainly in endothelial cells and hematopoietic stem
cells. It is also found in a subset of tumor-associated
monocytes and eosinophils. The angiopoietins (Ang-1 to
Ang-4) serve as ligands for Tie2. The binding of Ang-1
to Tie2 leads to receptor autophosphorylation and
activation, promoting cell migration and survival. In
contrast, Ang-2 binding to Tie2 does not result in the
same response, suggesting that Ang-2 may function as an
antagonist. Tie2 signaling plays key regulatory roles in
vascular integrity and quiescence, and in inflammation.
Length = 303
Score = 56.5 bits (136), Expect = 8e-09
Identities = 22/53 (41%), Positives = 37/53 (69%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
+ LNY+ +++ SDVW+YGVL+WE+ + G PY + E+ +++ +G LEKP
Sbjct: 193 ESLNYSVYTTNSDVWSYGVLLWEIVSLGGTPYCGMTCAELYEKLPQGYRLEKP 245
Score = 34.6 bits (79), Expect = 0.10
Identities = 22/85 (25%), Positives = 42/85 (49%), Gaps = 8/85 (9%)
Query: 426 IDPAELMLLEELGSGQFGVVRRGKWRGS---IDVAM--MKEGTMSED--DFIEEAKVMTR 478
++ ++ + +G G FG V + + + +D A+ MKE +D DF E +V+ +
Sbjct: 4 LEWNDIKFQDVIGEGNFGQVLKARIKKDGLRMDAAIKRMKEYASKDDHRDFAGELEVLCK 63
Query: 479 L-QHQNLVQLYGVCSKHRPIYIVTD 502
L H N++ L G C +Y+ +
Sbjct: 64 LGHHPNIINLLGACEHRGYLYLAIE 88
Score = 29.2 bits (65), Expect = 4.9
Identities = 16/58 (27%), Positives = 26/58 (44%), Gaps = 13/58 (22%)
Query: 3 HGSLLNYLRR-------------HENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
HG+LL++LR+ + + LL V +GM YL + +IHR+
Sbjct: 92 HGNLLDFLRKSRVLETDPAFAIANSTASTLSSQQLLHFAADVARGMDYLSQKQFIHRD 149
>gnl|CDD|173634 cd05053, PTKc_FGFR, Catalytic domain of the Protein Tyrosine
Kinases, Fibroblast Growth Factor Receptors. Protein
Tyrosine Kinase (PTK) family; Fibroblast Growth Factor
Receptor (FGFR) subfamily; catalytic (c) domain. The
FGFR subfamily consists of FGFR1, FGFR2, FGFR3, FGFR4,
and similar proteins. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K).PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. FGFR subfamily members
are receptor tyr kinases (RTKs) containing an
extracellular ligand-binding region with three
immunoglobulin-like domains, a transmembrane segment,
and an intracellular catalytic domain. The binding of
FGFRs to their ligands, the FGFs, and to heparin/heparan
sulfate (HS) results in the formation of a ternary
complex, which leads to receptor dimerization and
activation, and intracellular signaling. There are at
least 23 FGFs and four types of FGFRs. The binding of
FGFs to FGFRs is promiscuous, in that a receptor may be
activated by several ligands and a ligand may bind to
more that one type of receptor. FGF/FGFR signaling is
important in the regulation of embryonic development,
homeostasis, and regenerative processes. Depending on
the cell type and stage, FGFR signaling produces diverse
cellular responses including proliferation, growth
arrest, differentiation, and apoptosis. Aberrant
signaling leads to many human diseases such as skeletal,
olfactory, and metabolic disorders, as well as cancer.
Length = 293
Score = 56.7 bits (137), Expect = 8e-09
Identities = 27/89 (30%), Positives = 49/89 (55%), Gaps = 11/89 (12%)
Query: 423 KWEIDPAELMLLEELGSGQFGVVRRGKWRG--------SIDVAMMKEGTMSED--DFIEE 472
+WE+ L L + LG G FG V + + G ++ V M+K+ +D D + E
Sbjct: 6 EWELPRDRLTLGKPLGEGAFGQVVKAEAVGLDNPNETSTVAVKMLKDDATEKDLSDLVSE 65
Query: 473 AKVMTRL-QHQNLVQLYGVCSKHRPIYIV 500
++M + +H+N++ L GVC++ P+Y+V
Sbjct: 66 MEMMKMIGKHKNIINLLGVCTQEGPLYVV 94
Score = 52.4 bits (126), Expect = 2e-07
Identities = 19/46 (41%), Positives = 31/46 (67%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
++ +SDVW++GVL+WE+FT G PY + E+ ++ G +EKP
Sbjct: 211 YTHQSDVWSFGVLLWEIFTLGGSPYPGIPVEELFKLLKEGYRMEKP 256
Score = 32.4 bits (74), Expect = 0.48
Identities = 14/59 (23%), Positives = 22/59 (37%), Gaps = 13/59 (22%)
Query: 2 RHGSLLNYLRRH-----ENTLGGNVGL--------LLDMCIQVCKGMAYLERHNYIHRE 47
HG+L ++LR + L+ QV +GM +L IHR+
Sbjct: 99 AHGNLRDFLRARRPPGEYASPDDPRPPEETLTQKDLVSFAYQVARGMEFLASKKCIHRD 157
>gnl|CDD|212698 cd11764, SH3_Eps8, Src Homology 3 domain of Epidermal growth factor
receptor kinase substrate 8 and similar proteins. This
group is composed of Eps8 and Eps8-like proteins
including Eps8-like 1-3, among others. These proteins
contain N-terminal Phosphotyrosine-binding (PTB),
central SH3, and C-terminal effector domains. Eps8 binds
either Abi1 (also called E3b1) or Rab5 GTPase activating
protein RN-tre through its SH3 domain. With Abi1 and
Sos1, it becomes part of a trimeric complex that is
required to activate Rac. Together with RN-tre, it
inhibits the internalization of EGFR. The SH3 domains of
Eps8 and similar proteins recognize peptides containing
a PxxDY motif, instead of the classical PxxP motif. SH3
domains are protein interaction domains that usually
bind to proline-rich ligands with moderate affinity and
selectivity. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 51.1 bits (123), Expect = 9e-09
Identities = 23/49 (46%), Positives = 32/49 (65%), Gaps = 1/49 (2%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSN 176
V LY F A +LS+ KG EV+DD+++ WWKV++ G VGY+P N
Sbjct: 2 VRVLYDFTARNSKELSVLKGEYLEVLDDSRQ-WWKVRNSRGQVGYVPHN 49
Score = 37.6 bits (88), Expect = 6e-04
Identities = 18/41 (43%), Positives = 26/41 (63%), Gaps = 1/41 (2%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNG 115
V LY F A +LS+ KG EV+DD+++ WWKV++ G
Sbjct: 2 VRVLYDFTARNSKELSVLKGEYLEVLDDSRQ-WWKVRNSRG 41
>gnl|CDD|133195 cd05064, PTKc_EphR_A10, Catalytic domain of the Protein Tyrosine
Kinase, Ephrin Receptor A10. Protein Tyrosine Kinase
(PTK) family; Ephrin Receptor (EphR) subfamily; EphA10
receptor; catalytic (c) domain. The PTKc family is part
of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. EphRs
comprise the largest subfamily of receptor tyr kinases
(RTKs). In general, class EphA receptors bind
GPI-anchored ephrin-A ligands. There are ten vertebrate
EphA receptors (EphA1-10), which display promiscuous
interactions with six ephrin-A ligands. EphRs contain an
ephrin binding domain and two fibronectin repeats
extracellularly, a transmembrane segment, and a
cytoplasmic tyr kinase domain. Binding of the ephrin
ligand to EphR requires cell-cell contact since both are
anchored to the plasma membrane. The resulting
downstream signals occur bidirectionally in both
EphR-expressing cells (forward signaling) and
ephrin-expressing cells (reverse signaling). EphA10,
which contains an inactive tyr kinase domain, may
function to attenuate signals of co-clustered active
receptors. EphA10 is mainly expressed in the testis.
Ephrin/EphR interaction results in cell-cell repulsion
or adhesion, making it important in neural development
and plasticity, cell morphogenesis, cell-fate
determination, embryonic development, tissue patterning,
and angiogenesis.
Length = 266
Score = 56.1 bits (135), Expect = 1e-08
Identities = 21/54 (38%), Positives = 34/54 (62%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
+ + Y FSS SDVW++G++MWEV + G+ PY + +V+ V+ G L P+
Sbjct: 178 EAIQYHHFSSASDVWSFGIVMWEVMSYGERPYWDMSGQDVIKAVEDGFRLPAPR 231
Score = 42.6 bits (100), Expect = 2e-04
Identities = 21/59 (35%), Positives = 30/59 (50%), Gaps = 4/59 (6%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE--TKKSLYPSSL 57
M +G+L ++LR+HE L G L+ M + GM YL Y+H+ K L S L
Sbjct: 88 MSNGALDSFLRKHEGQL--VAGQLMGMLPGLASGMKYLSEMGYVHKGLAAHKVLVNSDL 144
Score = 36.4 bits (84), Expect = 0.025
Identities = 24/89 (26%), Positives = 44/89 (49%), Gaps = 8/89 (8%)
Query: 425 EIDPAELMLLEELGSGQFGVVRRG------KWRGSIDVAMMKEGTMSEDD--FIEEAKVM 476
E+D + + LG+G+FG + RG K + + ++ G + F+ EA +
Sbjct: 1 ELDNKSIKIERILGTGRFGELCRGCLKLPSKRELPVAIHTLRAGCSDKQRRGFLAEALTL 60
Query: 477 TRLQHQNLVQLYGVCSKHRPIYIVTDTSS 505
+ H N+V+L GV ++ + IVT+ S
Sbjct: 61 GQFDHSNIVRLEGVITRGNTMMIVTEYMS 89
>gnl|CDD|212775 cd11841, SH3_SH3YL1_like, Src homology 3 domain of SH3 domain
containing Ysc84-like 1 (SH3YL1) protein. SH3YL1
localizes to the plasma membrane and is required for
dorsal ruffle formation. It binds phosphoinositides
(PIs) with high affinity through its N-terminal SYLF
domain (also called DUF500). In addition, SH3YL1
contains a C-terminal SH3 domain which has been reported
to bind to N-WASP, dynamin 2, and SHIP2 (a PI
5-phosphatase). SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 50.9 bits (122), Expect = 1e-08
Identities = 21/55 (38%), Positives = 29/55 (52%), Gaps = 3/55 (5%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMD--DTQEHWWKVKDKNGSVGYIPSNYVK 179
V ALY F+ + DLS + G V+ D+Q WW+ + G VG P+NYV
Sbjct: 1 EVTALYSFEGQQPCDLSFQAGDRITVLTRTDSQFDWWEGR-LRGRVGIFPANYVS 54
Score = 42.4 bits (100), Expect = 1e-05
Identities = 16/47 (34%), Positives = 25/47 (53%), Gaps = 4/47 (8%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMD--DTQEHWW--KVKDKNGI 116
V ALY F+ + DLS + G V+ D+Q WW +++ + GI
Sbjct: 1 EVTALYSFEGQQPCDLSFQAGDRITVLTRTDSQFDWWEGRLRGRVGI 47
>gnl|CDD|212919 cd11986, SH3_Stac3_1, First C-terminal Src homology 3 domain of SH3
and cysteine-rich domain-containing protein 3 (Stac3).
Stac proteins are putative adaptor proteins that contain
a cysteine-rich C1 domain and one or two SH3 domains at
the C-terminus. There are three mammalian members
(Stac1, Stac2, and Stac3) of this family. Stac1 and
Stac3 contain two SH3 domains while Stac2 contains a
single SH3 domain at the C-terminus. Stac1 and Stac2
have been found to be expressed differently in mature
dorsal root ganglia (DRG) neurons. Stac1 is mainly
expressed in peptidergic neurons while Stac2 is found in
a subset of nonpeptidergic and all trkB+ neurons. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 51.1 bits (122), Expect = 1e-08
Identities = 23/52 (44%), Positives = 30/52 (57%), Gaps = 5/52 (9%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW--KVKDKNGSVGYIPSNYV 178
VALY FKA+E DL G V+DD+ E WW K+ +K GY P N++
Sbjct: 3 VALYRFKALEKDDLDFHPGERITVIDDSNEEWWRGKIGEK---TGYFPMNFI 51
Score = 48.0 bits (114), Expect = 1e-07
Identities = 22/51 (43%), Positives = 29/51 (56%), Gaps = 2/51 (3%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW--KVKDKNGIRKPDQMIR 124
VALY FKA+E DL G V+DD+ E WW K+ +K G + +IR
Sbjct: 3 VALYRFKALEKDDLDFHPGERITVIDDSNEEWWRGKIGEKTGYFPMNFIIR 53
>gnl|CDD|215690 pfam00069, Pkinase, Protein kinase domain.
Length = 260
Score = 55.7 bits (135), Expect = 1e-08
Identities = 21/76 (27%), Positives = 37/76 (48%), Gaps = 6/76 (7%)
Query: 433 LLEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDDFIE------EAKVMTRLQHQNLVQ 486
LL +LGSG FG V + K +G+ + +K + + E +++ RL H N+V+
Sbjct: 3 LLRKLGSGSFGTVYKAKHKGTGKIVAVKILKKRSEKSKKDQTARREIRILRRLSHPNIVR 62
Query: 487 LYGVCSKHRPIYIVTD 502
L +Y+V +
Sbjct: 63 LIDAFEDKDHLYLVME 78
Score = 35.7 bits (83), Expect = 0.039
Identities = 13/59 (22%), Positives = 26/59 (44%), Gaps = 4/59 (6%)
Query: 203 VLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNT---EVVDRVQRGIILEKPKAWY 258
+L + K DVW+ GV+++E+ GK P+ +++ R+ + W
Sbjct: 170 LLGGNGYGPKVDVWSLGVILYELL-TGKPPFSGENILDQLQLIRRILGPPLEFDEPKWS 227
Score = 32.2 bits (74), Expect = 0.55
Identities = 14/51 (27%), Positives = 23/51 (45%), Gaps = 7/51 (13%)
Query: 1 MRHGSLLNYLRRHENTLGGNV--GLLLDMCIQVCKGMAYLERHNYIHRETK 49
G L +YL R G + + +Q+ +G+ YL + IHR+ K
Sbjct: 80 CEGGDLFDYLSRG-----GPLSEDEAKKIALQILRGLEYLHSNGIIHRDLK 125
>gnl|CDD|198193 cd09940, SH2_Vav_family, Src homology 2 (SH2) domain found in the
Vav family. Vav proteins are involved in several
processes that require cytoskeletal reorganization, such
as the formation of the immunological synapse (IS),
phagocytosis, platelet aggregation, spreading, and
transformation. Vavs function as guanine nucleotide
exchange factors (GEFs) for the Rho/Rac family of
GTPases. Vav family members have several conserved
motifs/domains including: a leucine-rich region, a
leucine-zipper, a calponin homology (CH) domain, an
acidic domain, a Dbl-homology (DH) domain, a pleckstrin
homology (PH) domain, a cysteine-rich domain, 2 SH3
domains, a proline-rich region, and a SH2 domain. Vavs
are the only known Rho GEFs that have both the DH/PH
motifs and SH2/SH3 domains in the same protein. The
leucine-rich helix-loop-helix (HLH) domain is thought to
be involved in protein heterodimerization with other HLH
proteins and it may function as a negative regulator by
forming inactive heterodimers. The CH domain is usually
involved in the association with filamentous actin, but
in Vav it controls NFAT stimulation, Ca2+ mobilization,
and its transforming activity. Acidic domains are
involved in protein-protein interactions and contain
regulatory tyrosines. The DH domain is a GDP-GTP
exchange factor on Rho/Rac GTPases. The PH domain in
involved in interactions with GTP-binding proteins,
lipids and/or phosphorylated serine/threonine residues.
The SH3 domain is involved in localization of proteins
to specific sites within the cell interacting with
protein with proline-rich sequences. The SH2 domain
mediates a high affinity interaction with tyrosine
phosphorylated proteins. There are three Vav mammalian
family members: Vav1 which is expressed in the
hematopoietic system, Vav2 and Vav3 are more
ubiquitously expressed. The members here include insect
and amphibian Vavs. In general SH2 domains are involved
in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 102
Score = 52.3 bits (126), Expect = 1e-08
Identities = 26/75 (34%), Positives = 39/75 (52%), Gaps = 5/75 (6%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHIKQNSRG 315
W+VG+M R AE+ L+ +G ++VR + Y LS+ VKH I+Q S G
Sbjct: 7 WFVGEMERDTAENRLENR-PDGTYLVRVRPQGETQYALSIKYNG---DVKHMKIEQRSDG 62
Query: 316 EFFLSEKHCCHSIPE 330
++LSE S+ E
Sbjct: 63 LYYLSESRHFKSLVE 77
Score = 45.4 bits (108), Expect = 3e-06
Identities = 23/63 (36%), Positives = 33/63 (52%), Gaps = 4/63 (6%)
Query: 336 GCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVNYHR 394
G ++VR + Y LS+ VKH I+Q S G ++LSE S+ E+VNY+
Sbjct: 27 GTYLVRVRPQGETQYALSIKYNG---DVKHMKIEQRSDGLYYLSESRHFKSLVELVNYYE 83
Query: 395 HNS 397
NS
Sbjct: 84 RNS 86
>gnl|CDD|88330 cd05047, PTKc_Tie, Catalytic domain of Tie Protein Tyrosine
Kinases. Protein Tyrosine Kinase (PTK) family; Tie
subfamily; catalytic (c) domain. The Tie subfamily
consists of Tie1 and Tie2. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Tie proteins are
receptor tyr kinases (RTKs) containing an extracellular
region, a transmembrane segment, and an intracellular
catalytic domain. The extracellular region contains an
immunoglobulin (Ig)-like domain, three epidermal growth
factor (EGF)-like domains, a second Ig-like domain, and
three fibronectin type III repeats. Tie receptors are
specifically expressed in endothelial cells and
hematopoietic stem cells. The angiopoietins (Ang-1 to
Ang-4) serve as ligands for Tie2, while no specific
ligand has been identified for Tie1. The binding of
Ang-1 to Tie2 leads to receptor autophosphorylation and
activation, promoting cell migration and survival. In
contrast, Ang-2 binding to Tie2 does not result in the
same response, suggesting that Ang-2 may function as an
antagonist. In vivo studies of Tie1 show that it is
critical in vascular development.
Length = 270
Score = 55.8 bits (134), Expect = 1e-08
Identities = 22/54 (40%), Positives = 37/54 (68%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
+ LNY+ +++ SDVW+YGVL+WE+ + G PY + E+ +++ +G LEKP
Sbjct: 181 ESLNYSVYTTNSDVWSYGVLLWEIVSLGGTPYCGMTCAELYEKLPQGYRLEKPL 234
Score = 33.5 bits (76), Expect = 0.23
Identities = 20/78 (25%), Positives = 35/78 (44%), Gaps = 8/78 (10%)
Query: 437 LGSGQFG-----VVRRGKWRGSIDVAMMKEGTMSED--DFIEEAKVMTRL-QHQNLVQLY 488
+G G FG +++ R + MKE +D DF E +V+ +L H N++ L
Sbjct: 3 IGEGNFGQVLKARIKKDGLRMDAAIKRMKEYASKDDHRDFAGELEVLCKLGHHPNIINLL 62
Query: 489 GVCSKHRPIYIVTDTSSF 506
G C +Y+ + +
Sbjct: 63 GACEHRGYLYLAIEYAPH 80
>gnl|CDD|212774 cd11840, SH3_Intersectin_5, Fifth Src homology 3 domain (or SH3E)
of Intersectin. Intersectins (ITSNs) are adaptor
proteins that function in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction.
They are essential for initiating clathrin-coated pit
formation. They bind to many proteins through their
multidomain structure and facilitate the assembly of
multimeric complexes. Vertebrates contain two ITSN
proteins, ITSN1 and ITSN2, which exist in alternatively
spliced short and long isoforms. The short isoforms
contain two Eps15 homology domains (EH1 and EH2), a
coiled-coil region and five SH3 domains (SH3A-E), while
the long isoforms, in addition, contain RhoGEF (also
called Dbl-homologous or DH), Pleckstrin homology (PH)
and C2 domains. ITSN1 and ITSN2 are both widely
expressed, with variations depending on tissue type and
stage of development. The fifth SH3 domain (or SH3E) of
ITSN1 has been shown to bind many protein partners
including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2,
N-WASP, and synaptojanin-1, among others. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 50.5 bits (121), Expect = 1e-08
Identities = 20/53 (37%), Positives = 29/53 (54%), Gaps = 1/53 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
V+AL+P+ A +LS +KG V+ WW+ + NG G PSNYV+
Sbjct: 2 VIALFPYTAQNEDELSFQKGDIINVLSKDDPDWWR-GELNGQTGLFPSNYVEP 53
Score = 34.3 bits (79), Expect = 0.008
Identities = 12/35 (34%), Positives = 19/35 (54%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK 109
V+AL+P+ A +LS +KG V+ WW+
Sbjct: 2 VIALFPYTAQNEDELSFQKGDIINVLSKDDPDWWR 36
>gnl|CDD|173642 cd05075, PTKc_Axl, Catalytic domain of the Protein Tyrosine Kinase,
Axl. Protein Tyrosine Kinase (PTK) family; Axl;
catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Axl is a member of the
Axl subfamily, which is composed of receptor tyr kinases
(RTKs) containing an extracellular ligand-binding region
with two immunoglobulin-like domains followed by two
fibronectin type III repeats, a transmembrane segment,
and an intracellular catalytic domain. Binding to their
ligands, Gas6 and protein S, leads to receptor
dimerization, autophosphorylation, activation, and
intracellular signaling. Axl is widely expressed in a
variety of organs and cells including epithelial,
mesenchymal, hematopoietic, as well as non-transformed
cells. Axl signaling is important in many cellular
functions such as survival, anti-apoptosis,
proliferation, migration, and adhesion. Axl was
originally isolated from patients with chronic
myelogenous leukemia and a chronic myeloproliferative
disorder. Axl is overexpressed in many human cancers
including colon, squamous cell, thyroid, breast, and
lung carcinomas.
Length = 272
Score = 55.8 bits (134), Expect = 1e-08
Identities = 20/46 (43%), Positives = 36/46 (78%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
+++KSDVW++GV MWE+ T G+ PY ++N+E+ D +++G L++P
Sbjct: 191 YTTKSDVWSFGVTMWEIATRGQTPYPGVENSEIYDYLRQGNRLKQP 236
Score = 37.7 bits (87), Expect = 0.010
Identities = 26/69 (37%), Positives = 35/69 (50%), Gaps = 8/69 (11%)
Query: 431 LMLLEELGSGQFGVVRRGKWRG-----SIDVAMMKEG--TMSE-DDFIEEAKVMTRLQHQ 482
L L + LG G+FG V G+ + V MK T SE +DF+ EA M H
Sbjct: 1 LALGKTLGEGEFGSVMEGQLNQDDSILKVAVKTMKIAICTRSEMEDFLSEAVCMKEFDHP 60
Query: 483 NLVQLYGVC 491
N+++L GVC
Sbjct: 61 NVMRLIGVC 69
Score = 30.0 bits (67), Expect = 2.9
Identities = 14/50 (28%), Positives = 24/50 (48%), Gaps = 3/50 (6%)
Query: 1 MRHGSLLNYL---RRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M+HG L ++L R + +L+ + GM YL ++IHR+
Sbjct: 88 MKHGDLHSFLLYSRLGDCPQYLPTQMLVKFMTDIASGMEYLSSKSFIHRD 137
>gnl|CDD|212937 cd12004, SH3_Lyn, Src homology 3 domain of Lyn Protein Tyrosine
Kinase. Lyn is a member of the Src subfamily of
proteins, which are cytoplasmic (or non-receptor) PTKs.
Lyn is expressed in B lymphocytes and myeloid cells. It
exhibits both positive and negative regulatory roles in
B cell receptor (BCR) signaling. Lyn, as well as Fyn and
Blk, promotes B cell activation by phosphorylating ITAMs
(immunoreceptor tyr activation motifs) in CD19 and in Ig
components of BCR. It negatively regulates signaling by
its unique ability to phosphorylate ITIMs
(immunoreceptor tyr inhibition motifs) in cell surface
receptors like CD22 and CD5. Lyn also plays an important
role in G-CSF receptor signaling by phosphorylating a
variety of adaptor molecules. Src kinases contain an
N-terminal SH4 domain with a myristoylation site,
followed by SH3 and SH2 domains, a tyr kinase domain,
and a regulatory C-terminal region containing a
conserved tyr. They are activated by autophosphorylation
at the tyr kinase domain, but are negatively regulated
by phosphorylation at the C-terminal tyr by Csk
(C-terminal Src Kinase). The SH3 domain of Src kinases
contributes to substrate recruitment by binding adaptor
proteins/substrates, and regulation of kinase activity
through an intramolecular interaction. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 56
Score = 50.4 bits (120), Expect = 2e-08
Identities = 24/55 (43%), Positives = 35/55 (63%), Gaps = 2/55 (3%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKD-KNGSVGYIPSNYVKE 180
+VVALYP+ I DLS +KG + +V+++ E WWK + G+IPSNYV +
Sbjct: 1 IVVALYPYDGIHEDDLSFKKGEKLKVIEEHGE-WWKARSLTTKKEGFIPSNYVAK 54
Score = 40.4 bits (94), Expect = 7e-05
Identities = 17/38 (44%), Positives = 26/38 (68%), Gaps = 1/38 (2%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK 111
+VVALYP+ I DLS +KG + +V+++ E WWK +
Sbjct: 1 IVVALYPYDGIHEDDLSFKKGEKLKVIEEHGE-WWKAR 37
>gnl|CDD|133167 cd05035, PTKc_Axl_like, Catalytic Domain of Axl-like Protein
Tyrosine Kinases. Protein Tyrosine Kinase (PTK) family;
Axl subfamily; catalytic (c) domain. The PTKc family is
part of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). The Axl subfamily
consists of Axl, Tyro3 (or Sky), Mer (or Mertk), and
similar proteins. PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Axl subfamily members
are receptor tyr kinases (RTKs) containing an
extracellular ligand-binding region with two
immunoglobulin-like domains followed by two fibronectin
type III repeats, a transmembrane segment, and an
intracellular catalytic domain. Binding to their
ligands, Gas6 and protein S, leads to receptor
dimerization, autophosphorylation, activation, and
intracellular signaling. Axl subfamily members are
implicated in a variety of cellular effects including
survival, proliferation, migration, and phagocytosis.
They are also associated with several types of cancer as
well as inflammatory, autoimmune, vascular, and kidney
diseases. Mer is named after its original reported
expression pattern (monocytes, epithelial, and
reproductive tissues). It is required for the ingestion
of apoptotic cells by phagocytes such as macrophages,
retinal pigment epithelial cells, and dendritic cells.
Mer is also important in maintaining immune homeostasis.
Length = 273
Score = 55.2 bits (133), Expect = 2e-08
Identities = 22/46 (47%), Positives = 34/46 (73%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
++SKSDVWA+GV MWE+ T G+ PY ++N E+ D ++ G L++P
Sbjct: 192 YTSKSDVWAFGVTMWEIATRGQTPYPGVENHEIYDYLRHGNRLKQP 237
Score = 38.6 bits (90), Expect = 0.005
Identities = 22/70 (31%), Positives = 33/70 (47%), Gaps = 9/70 (12%)
Query: 431 LMLLEELGSGQFGVVRRGKWR------GSIDVAMMKEGTMSE---DDFIEEAKVMTRLQH 481
L L + LG G+FG V G+ + V MK + ++F+ EA M H
Sbjct: 1 LKLGKILGEGEFGSVMEGQLSQDDGSQLKVAVKTMKLDIHTYSEIEEFLSEAACMKDFDH 60
Query: 482 QNLVQLYGVC 491
N+++L GVC
Sbjct: 61 PNVMKLIGVC 70
Score = 34.0 bits (78), Expect = 0.16
Identities = 16/50 (32%), Positives = 24/50 (48%), Gaps = 3/50 (6%)
Query: 1 MRHGSLLNYL---RRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M+HG L ++L R + LL + + GM YL N+IHR+
Sbjct: 89 MKHGDLHSFLLYSRLGGLPEKLPLQTLLKFMVDIALGMEYLSNRNFIHRD 138
>gnl|CDD|212836 cd11903, SH3_Nck2_3, Third Src Homology 3 domain of Nck2 adaptor
protein. Nck2 (also called Nckbeta or Growth factor
receptor-bound protein 4, Grb4) plays a crucial role in
connecting signaling pathways of tyrosine kinase
receptors and important effectors in actin dynamics and
cytoskeletal remodeling. It binds neuronal signaling
proteins such as ephrinB and Disabled-1 (Dab-1)
exclusively. Nck adaptor proteins regulate actin
cytoskeleton dynamics by linking proline-rich effector
molecules to protein tyrosine kinases and phosphorylated
signaling intermediates. They contain three SH3 domains
and a C-terminal SH2 domain. They function downstream of
the PDGFbeta receptor and are involved in Rho GTPase
signaling and actin dynamics. Vertebrates contain two
Nck adaptor proteins: Nck1 (also called Nckalpha) and
Nck2, which show partly overlapping functions but also
bind distinct targets. The third SH3 domain of Nck
appears to prefer ligands with a PxAPxR motif. SH3
domains are protein interaction domains that usually
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially a PxxP motif. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 59
Score = 50.4 bits (120), Expect = 2e-08
Identities = 23/54 (42%), Positives = 32/54 (59%), Gaps = 2/54 (3%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMD--DTQEHWWKVKDKNGSVGYIPSNYV 178
VV LYPF ++ +L+ EKG EV++ + WWK K+ G VG +P NYV
Sbjct: 2 VVQTLYPFSSVTEEELNFEKGETMEVIEKPENDPEWWKCKNSRGQVGLVPKNYV 55
Score = 37.7 bits (87), Expect = 7e-04
Identities = 17/45 (37%), Positives = 25/45 (55%), Gaps = 2/45 (4%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMD--DTQEHWWKVKDKNGI 116
VV LYPF ++ +L+ EKG EV++ + WWK K+ G
Sbjct: 2 VVQTLYPFSSVTEEELNFEKGETMEVIEKPENDPEWWKCKNSRGQ 46
>gnl|CDD|199828 cd09941, SH2_Grb2_like, Src homology 2 domain found in Growth
factor receptor-bound protein 2 (Grb2) and similar
proteins. The adaptor proteins here include homologs
Grb2 in humans, Sex muscle abnormal protein 5 (Sem-5) in
Caenorhabditis elegans, and Downstream of receptor
kinase (drk) in Drosophila melanogaster. They are
composed of one SH2 and two SH3 domains. Grb2/Sem-5/drk
regulates the Ras pathway by linking the tyrosine
kinases to the Ras guanine nucleotide releasing protein
Sos, which converts Ras to the active GTP-bound state.
The SH2 domain of Grb2/Sem-5/drk binds class II
phosphotyrosyl peptides while its SH3 domain binds to
Sos and Sos-derived, proline-rich peptides. Besides it
function in Ras signaling, Grb2 is also thought to play
a role in apoptosis. Unlike most SH2 structures in which
the peptide binds in an extended conformation (such that
the +3 peptide residue occupies a hydrophobic pocket in
the protein, conferring a modest degree of selectivity),
Grb2 forms several hydrogen bonds via main chain atoms
with the side chain of +2 Asn. In general SH2 domains
are involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 95
Score = 51.5 bits (124), Expect = 2e-08
Identities = 24/69 (34%), Positives = 40/69 (57%), Gaps = 6/69 (8%)
Query: 253 KPKAWYVGDMSRQRAESILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPHP-HVKHYHIK 310
KP W+ G +SR AE IL + +G F++R S S+ G ++LS V V+H+ +
Sbjct: 1 KPHPWFHGKISRAEAEEILMNQRPDGAFLIRESESSPGDFSLS----VKFGNDVQHFKVL 56
Query: 311 QNSRGEFFL 319
++ G++FL
Sbjct: 57 RDGAGKYFL 65
>gnl|CDD|212767 cd11833, SH3_Stac_1, First C-terminal Src homology 3 domain of SH3
and cysteine-rich domain-containing (Stac) proteins.
Stac proteins are putative adaptor proteins that contain
a cysteine-rich C1 domain and one or two SH3 domains at
the C-terminus. There are three mammalian members
(Stac1, Stac2, and Stac3) of this family. Stac1 and
Stac3 contain two SH3 domains while Stac2 contains a
single SH3 domain at the C-terminus. This model
represents the first C-terminal SH3 domain of Stac1 and
Stac3, and the single C-terminal SH3 domain of Stac2.
Stac1 and Stac2 have been found to be expressed
differently in mature dorsal root ganglia (DRG) neurons.
Stac1 is mainly expressed in peptidergic neurons while
Stac2 is found in a subset of nonpeptidergic and all
trkB+ neurons. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 49.8 bits (119), Expect = 2e-08
Identities = 22/50 (44%), Positives = 30/50 (60%), Gaps = 1/50 (2%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
VALY FK E DL + G + ++DD+ E WWK K VG+ P+N+V
Sbjct: 3 VALYKFKPQENEDLEMRPGDKITLLDDSNEDWWKGK-IEDRVGFFPANFV 51
Score = 41.7 bits (98), Expect = 2e-05
Identities = 17/36 (47%), Positives = 22/36 (61%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK 111
VALY FK E DL + G + ++DD+ E WWK K
Sbjct: 3 VALYKFKPQENEDLEMRPGDKITLLDDSNEDWWKGK 38
>gnl|CDD|212771 cd11837, SH3_Intersectin_2, Second Src homology 3 domain (or SH3B)
of Intersectin. Intersectins (ITSNs) are adaptor
proteins that function in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction.
They are essential for initiating clathrin-coated pit
formation. They bind to many proteins through their
multidomain structure and facilitate the assembly of
multimeric complexes. Vertebrates contain two ITSN
proteins, ITSN1 and ITSN2, which exist in alternatively
spliced short and long isoforms. The short isoforms
contain two Eps15 homology domains (EH1 and EH2), a
coiled-coil region and five SH3 domains (SH3A-E), while
the long isoforms, in addition, contain RhoGEF (also
called Dbl-homologous or DH), Pleckstrin homology (PH)
and C2 domains. ITSN1 and ITSN2 are both widely
expressed, with variations depending on tissue type and
stage of development. The second SH3 domain (or SH3B) of
ITSN1 has been shown to bind WNK and CdGAP. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 50.1 bits (120), Expect = 2e-08
Identities = 21/54 (38%), Positives = 30/54 (55%), Gaps = 1/54 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
ALYP++A + LS KG V++ QE WW + + G G+ P +YVKE
Sbjct: 1 TATALYPWRAKKENHLSFAKGDIITVLEQ-QEMWWFGELEGGEEGWFPKSYVKE 53
Score = 33.9 bits (78), Expect = 0.014
Identities = 15/42 (35%), Positives = 22/42 (52%), Gaps = 1/42 (2%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNG 115
ALYP++A + LS KG V++ QE WW + + G
Sbjct: 1 TATALYPWRAKKENHLSFAKGDIITVLEQ-QEMWWFGELEGG 41
>gnl|CDD|173638 cd05065, PTKc_EphR_B, Catalytic domain of the Protein Tyrosine
Kinases, Class EphB Ephrin Receptors. Protein Tyrosine
Kinase (PTK) family; Ephrin Receptor (EphR) subfamily;
class EphB receptors; catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. EphRs
comprise the largest subfamily of receptor tyr kinases
(RTKs). Class EphB receptors bind to transmembrane
ephrin-B ligands. There are six vertebrate EhpB
receptors (EphB1-6), which display promiscuous
interactions with three ephrin-B ligands. One exception
is EphB2, which also interacts with ephrin A5. EphRs
contain an ephrin-binding domain and two fibronectin
repeats extracellularly, a transmembrane segment, and a
cytoplasmic tyr kinase domain. Binding of the ephrin
ligand to EphR requires cell-cell contact since both are
anchored to the plasma membrane. The resulting
downstream signals occur bidirectionally in both
EphR-expressing cells (forward signaling) and
ephrin-expressing cells (reverse signaling). Ephrin/EphR
interaction mainly results in cell-cell repulsion or
adhesion. EphBRs play important roles in synapse
formation and plasticity, spine morphogenesis, axon
guidance, and angiogenesis. In the intestinal
epithelium, EphBRs are Wnt signaling target genes that
control cell compartmentalization. They function as
suppressors of color cancer progression.
Length = 269
Score = 54.9 bits (132), Expect = 3e-08
Identities = 20/53 (37%), Positives = 36/53 (67%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
+ + Y +F+S SDVW+YG++MWEV + G+ PY + N +V++ +++ L P
Sbjct: 181 EAIAYRKFTSASDVWSYGIVMWEVMSYGERPYWDMSNQDVINAIEQDYRLPPP 233
Score = 53.3 bits (128), Expect = 9e-08
Identities = 30/85 (35%), Positives = 50/85 (58%), Gaps = 8/85 (9%)
Query: 426 IDPAELMLLEELGSGQFGVVRRGKW----RGSIDVAM--MKEGTMSED--DFIEEAKVMT 477
ID + + + E +G+G+FG V RG+ + I VA+ +K G + DF+ EA +M
Sbjct: 1 IDVSCVKIEEVIGAGEFGEVCRGRLKLPGKREIFVAIKTLKSGYTEKQRRDFLSEASIMG 60
Query: 478 RLQHQNLVQLYGVCSKHRPIYIVTD 502
+ H N++ L GV +K RP+ I+T+
Sbjct: 61 QFDHPNIIHLEGVVTKSRPVMIITE 85
Score = 31.4 bits (71), Expect = 0.89
Identities = 16/47 (34%), Positives = 27/47 (57%), Gaps = 2/47 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M +G+L ++LR+++ V L+ M + GM YL NY+HR+
Sbjct: 87 MENGALDSFLRQNDGQF--TVIQLVGMLRGIAAGMKYLSEMNYVHRD 131
>gnl|CDD|212939 cd12006, SH3_Fyn_Yrk, Src homology 3 domain of Fyn and Yrk Protein
Tyrosine Kinases. Fyn and Yrk (Yes-related kinase) are
members of the Src subfamily of proteins, which are
cytoplasmic (or non-receptor) PTKs. Fyn, together with
Lck, plays a critical role in T-cell signal transduction
by phosphorylating ITAM (immunoreceptor tyr activation
motif) sequences on T-cell receptors, ultimately leading
to the proliferation and differentiation of T-cells. In
addition, Fyn is involved in the myelination of neurons,
and is implicated in Alzheimer's and Parkinson's
diseases. Yrk has been detected only in chickens. It is
primarily found in neuronal and epithelial cells and in
macrophages. It may play a role in inflammation and in
response to injury. Src kinases contain an N-terminal
SH4 domain with a myristoylation site, followed by SH3
and SH2 domains, a tyr kinase domain, and a regulatory
C-terminal region containing a conserved tyr. They are
activated by autophosphorylation at the tyr kinase
domain, but are negatively regulated by phosphorylation
at the C-terminal tyr by Csk (C-terminal Src Kinase).
The SH3 domain of Src kinases contributes to substrate
recruitment by binding adaptor proteins/substrates, and
regulation of kinase activity through an intramolecular
interaction. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 56
Score = 50.0 bits (119), Expect = 3e-08
Identities = 21/51 (41%), Positives = 33/51 (64%), Gaps = 1/51 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKD-KNGSVGYIPSNYV 178
VALY ++A DLS KG ++++++ ++ WW+ + G GYIPSNYV
Sbjct: 4 VALYDYEARTEDDLSFHKGEKFQILNSSEGDWWEARSLTTGETGYIPSNYV 54
Score = 35.4 bits (81), Expect = 0.004
Identities = 12/36 (33%), Positives = 24/36 (66%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK 111
VALY ++A DLS KG ++++++ ++ WW+ +
Sbjct: 4 VALYDYEARTEDDLSFHKGEKFQILNSSEGDWWEAR 39
>gnl|CDD|133186 cd05055, PTKc_PDGFR, Catalytic domain of the Protein Tyrosine
Kinases, Platelet Derived Growth Factor Receptors.
Protein Tyrosine Kinase (PTK) family; Platelet Derived
Growth Factor Receptor (PDGFR) subfamily; catalytic (c)
domain. The PDGFR subfamily consists of PDGFR alpha,
PDGFR beta, KIT, CSF-1R, the mammalian FLT3, and similar
proteins. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
PDGFR subfamily members are receptor tyr kinases (RTKs)
containing an extracellular ligand-binding region with
five immunoglobulin-like domains, a transmembrane
segment, and an intracellular catalytic domain. PDGFR
kinase domains are autoinhibited by their juxtamembrane
regions containing tyr residues. The binding to their
ligands leads to receptor dimerization, trans
phosphorylation and activation, and intracellular
signaling. PDGFR subfamily receptors are important in
the development of a variety of cells. PDGFRs are
expressed in a many cells including fibroblasts,
neurons, endometrial cells, mammary epithelial cells,
and vascular smooth muscle cells. PDGFR signaling is
critical in normal embryonic development, angiogenesis,
and wound healing. PDGFRs transduce mitogenic signals
for connective tissue cells and are important for cell
shape and motility. Kit is important in the development
of melanocytes, germ cells, mast cells, hematopoietic
stem cells, the interstitial cells of Cajal, and the
pacemaker cells of the GI tract. CSF-1R signaling is
critical in the regulation of macrophages and
osteoclasts. Mammalian FLT3 plays an important role in
the survival, proliferation, and differentiation of stem
cells.
Length = 302
Score = 55.2 bits (133), Expect = 3e-08
Identities = 29/91 (31%), Positives = 43/91 (47%), Gaps = 11/91 (12%)
Query: 423 KWEIDPAELMLLEELGSGQFGVVRR------GKWRGSIDVA--MMKEGTMSEDD--FIEE 472
KWE L + LG+G FG V K + VA M+K S + + E
Sbjct: 29 KWEFPRNNLSFGKTLGAGAFGKVVEATAYGLSKSDAVMKVAVKMLKPTAHSSEREALMSE 88
Query: 473 AKVMTRL-QHQNLVQLYGVCSKHRPIYIVTD 502
K+M+ L H+N+V L G C+ PI ++T+
Sbjct: 89 LKIMSHLGNHENIVNLLGACTIGGPILVITE 119
Score = 48.3 bits (115), Expect = 4e-06
Identities = 16/47 (34%), Positives = 31/47 (65%), Gaps = 1/47 (2%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPY-GRLKNTEVVDRVQRGIILEKP 254
++ +SDVW+YG+L+WE+F+ G PY G +++ ++ G + +P
Sbjct: 220 YTFESDVWSYGILLWEIFSLGSNPYPGMPVDSKFYKLIKEGYRMAQP 266
Score = 40.5 bits (95), Expect = 0.001
Identities = 20/46 (43%), Positives = 26/46 (56%), Gaps = 1/46 (2%)
Query: 2 RHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
+G LLN+LRR + + LL QV KGMA+L N IHR+
Sbjct: 122 CYGDLLNFLRRKRESFL-TLEDLLSFSYQVAKGMAFLASKNCIHRD 166
>gnl|CDD|212942 cd12009, SH3_Blk, Src homology 3 domain of Blk Protein Tyrosine
Kinase. Blk is a member of the Src subfamily of
proteins, which are cytoplasmic (or non-receptor) PTKs.
It is expressed specifically in B-cells and is involved
in pre-BCR (B-cell receptor) signaling. Src kinases
contain an N-terminal SH4 domain with a myristoylation
site, followed by SH3 and SH2 domains, a tyr kinase
domain, and a regulatory C-terminal region containing a
conserved tyr. They are activated by autophosphorylation
at the tyr kinase domain, but are negatively regulated
by phosphorylation at the C-terminal tyr by Csk
(C-terminal Src Kinase). The SH3 domain of Src kinases
contributes to substrate recruitment by binding adaptor
proteins/substrates, and regulation of kinase activity
through an intramolecular interaction. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 54
Score = 49.8 bits (119), Expect = 3e-08
Identities = 23/53 (43%), Positives = 28/53 (52%), Gaps = 2/53 (3%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKD-KNGSVGYIPSNYV 178
V+A Y F DL L+KG + +V+ E WW K G GYIPSNYV
Sbjct: 1 CVIAQYDFVPSNERDLQLKKGEKLQVLKSDGE-WWLAKSLTTGKEGYIPSNYV 52
Score = 34.8 bits (80), Expect = 0.006
Identities = 14/38 (36%), Positives = 19/38 (50%), Gaps = 1/38 (2%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK 111
V+A Y F DL L+KG + +V+ E WW K
Sbjct: 1 CVIAQYDFVPSNERDLQLKKGEKLQVLKSDGE-WWLAK 37
>gnl|CDD|212704 cd11770, SH3_Nephrocystin, Src Homology 3 domain of Nephrocystin
(or Nephrocystin-1). Nephrocystin contains an SH3
domain involved in signaling pathways that regulate cell
adhesion and cytoskeletal organization. It is a protein
that in humans is associated with juvenile
nephronophthisis, an inherited kidney disease
characterized by renal fibrosis that lead to chronic
renal failure in children. It is localized in cell-cell
junctions in renal duct cells, and is known to interact
with Ack1, an activated Cdc42-associated kinase. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 49.6 bits (119), Expect = 3e-08
Identities = 17/53 (32%), Positives = 28/53 (52%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
AL F+A + GDLS +KG ++ + WW ++ G+ G +P Y+K
Sbjct: 2 YEALSDFQAEQEGDLSFKKGEVLRIISKRADGWWLAENSKGNRGLVPKTYLKV 54
Score = 37.7 bits (88), Expect = 6e-04
Identities = 14/43 (32%), Positives = 22/43 (51%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGIR 117
AL F+A + GDLS +KG ++ + WW ++ G R
Sbjct: 2 YEALSDFQAEQEGDLSFKKGEVLRIISKRADGWWLAENSKGNR 44
>gnl|CDD|198210 cd10347, SH2_Nterm_shark_like, N-terminal Src homology 2 (SH2)
domain found in SH2 domains, ANK, and kinase domain
(shark) proteins. These non-receptor protein-tyrosine
kinases contain two SH2 domains, five ankyrin (ANK)-like
repeats, and a potential tyrosine phosphorylation site
in the carboxyl-terminal tail which resembles the
phosphorylation site in members of the src family. Like,
mammalian non-receptor protein-tyrosine kinases, ZAP-70
and syk proteins, they do not have SH3 domains. However,
the presence of ANK makes these unique among
protein-tyrosine kinases. Both tyrosine kinases and ANK
repeats have been shown to transduce developmental
signals, and SH2 domains are known to participate
intimately in tyrosine kinase signaling. These tyrosine
kinases are believed to be involved in epithelial cell
polarity. The members of this family include the shark
(SH2 domains, ANK, and kinase domain) gene in Drosophila
and yellow fever mosquitos, as well as the hydra protein
HTK16. Drosophila Shark is proposed to transduce
intracellularly the Crumbs, a protein necessary for
proper organization of ectodermal epithelia,
intercellular signal. In general SH2 domains are
involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 81
Score = 49.7 bits (119), Expect = 6e-08
Identities = 25/69 (36%), Positives = 39/69 (56%), Gaps = 5/69 (7%)
Query: 257 WYVGDMSRQRAESIL-KQEDKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSR 314
WY G +SR+ AE++L ++ ++G F+VR S S G Y LSL + V HY I+++
Sbjct: 3 WYHGKISREVAEALLLREGGRDGLFLVRESTSAPGDYVLSLLAQ---GEVLHYQIRRHGE 59
Query: 315 GEFFLSEKH 323
FF +
Sbjct: 60 DAFFSDDGP 68
>gnl|CDD|212882 cd11949, SH3_GRB2_C, C-terminal Src homology 3 domain of Growth
factor receptor-bound protein 2. GRB2 is a critical
signaling molecule that regulates the Ras pathway by
linking tyrosine kinases to the Ras guanine nucleotide
releasing protein Sos (son of sevenless), which converts
Ras to the active GTP-bound state. It is ubiquitously
expressed in all tissues throughout development and is
important in cell cycle progression, motility,
morphogenesis, and angiogenesis. In lymphocytes, GRB2 is
associated with antigen receptor signaling components.
GRB2 contains an N-terminal SH3 domain, a central SH2
domain, and a C-terminal SH3 domain. The C-terminal SH3
domain of GRB2 binds to Gab2 (Grb2-associated binder 2)
through epitopes containing RxxK motifs, as well as to
the proline-rich C-terminus of FGRF2. SH3 domains are
protein interaction domains that typically bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 48.7 bits (116), Expect = 6e-08
Identities = 21/52 (40%), Positives = 28/52 (53%), Gaps = 1/52 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
V AL+ F E G+L +G EVMD++ +WWK +G G P NYV
Sbjct: 2 VQALFDFDPQEDGELGFRRGDFIEVMDNSDPNWWKGA-CHGQTGMFPRNYVT 52
Score = 36.7 bits (85), Expect = 0.001
Identities = 15/35 (42%), Positives = 21/35 (60%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK 109
V AL+ F E G+L +G EVMD++ +WWK
Sbjct: 2 VQALFDFDPQEDGELGFRRGDFIEVMDNSDPNWWK 36
>gnl|CDD|212703 cd11769, SH3_CSK, Src Homology 3 domain of C-terminal Src kinase.
CSK is a cytoplasmic (or nonreceptor) tyr kinase
containing the Src homology domains, SH3 and SH2,
N-terminal to the catalytic tyr kinase domain. They
negatively regulate the activity of Src kinases that are
anchored to the plasma membrane. To inhibit Src kinases,
CSK is translocated to the membrane via binding to
specific transmembrane proteins, G-proteins, or adaptor
proteins near the membrane. CSK catalyzes the tyr
phosphorylation of the regulatory C-terminal tail of Src
kinases, resulting in their inactivation. It is
expressed in a wide variety of tissues and plays a role,
as a regulator of Src, in cell proliferation, survival,
and differentiation, and consequently, in cancer
development and progression. In addition, CSK also shows
Src-independent functions. It is a critical component in
G-protein signaling, and plays a role in cytoskeletal
reorganization and cell migration. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 57
Score = 48.8 bits (117), Expect = 7e-08
Identities = 19/54 (35%), Positives = 32/54 (59%), Gaps = 1/54 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQE-HWWKVKDKNGSVGYIPSNYVKE 180
+A Y F DL +KG ++ T++ +W+K K+K+G G IP+NYV++
Sbjct: 4 CIAKYNFNGASEEDLPFKKGDILTIVAVTKDPNWYKAKNKDGREGMIPANYVQK 57
>gnl|CDD|133221 cd05090, PTKc_Ror1, Catalytic domain of the Protein Tyrosine
Kinase, Receptor tyrosine kinase-like Orphan Receptor 1.
Protein Tyrosine Kinase (PTK) family; Receptor tyrosine
kinase-like Orphan Receptor 1 (Ror1); catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Ror
proteins are orphan receptor tyr kinases (RTKs)
containing an extracellular region with
immunoglobulin-like, cysteine-rich, and kringle domains,
a transmembrane segment, and an intracellular catalytic
domain. Ror RTKs are unrelated to the nuclear receptor
subfamily called retinoid-related orphan receptors
(RORs). RTKs are usually activated through ligand
binding, which causes dimerization and
autophosphorylation of the intracellular tyr kinase
catalytic domain. Ror kinases are expressed in many
tissues during development. Avian Ror1 was found to be
involved in late limb development. Studies in mice
reveal that Ror1 is important in the regulation of
neurite growth in central neurons, as well as in
respiratory development. Loss of Ror1 also enhances the
heart and skeletal abnormalities found in Ror2-deficient
mice.
Length = 283
Score = 53.5 bits (128), Expect = 9e-08
Identities = 20/54 (37%), Positives = 36/54 (66%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
+ + Y +FSS SD+W++GV++WE+F+ G PY N EV++ V++ +L +
Sbjct: 196 EAIMYGKFSSDSDIWSFGVVLWEIFSFGLQPYYGFSNQEVIEMVRKRQLLPCSE 249
Score = 35.4 bits (81), Expect = 0.051
Identities = 23/82 (28%), Positives = 41/82 (50%), Gaps = 9/82 (10%)
Query: 425 EIDPAELMLLEELGSGQFGVVRRGK-WRGSIDVAMMKEGTMSED--------DFIEEAKV 475
E+ + + +EELG FG + +G + +D A + +D +F +EA +
Sbjct: 1 ELPLSAVRFMEELGECAFGKIYKGHLYLPGMDHAQLVAIKTLKDINNPQQWGEFQQEASL 60
Query: 476 MTRLQHQNLVQLYGVCSKHRPI 497
M L H N+V L GV ++ +P+
Sbjct: 61 MAELHHPNIVCLLGVVTQEQPV 82
Score = 28.8 bits (64), Expect = 7.3
Identities = 10/26 (38%), Positives = 16/26 (61%)
Query: 22 GLLLDMCIQVCKGMAYLERHNYIHRE 47
G L + IQ+ GM YL H ++H++
Sbjct: 124 GDFLHIAIQIAAGMEYLSSHFFVHKD 149
>gnl|CDD|212692 cd11758, SH3_CRK_N, N-terminal Src Homology 3 domain of Ct10
Regulator of Kinase adaptor proteins. CRK adaptor
proteins consists of SH2 and SH3 domains, which bind
tyrosine-phosphorylated peptides and proline-rich
motifs, respectively. They function downstream of
protein tyrosine kinases in many signaling pathways
started by various extracellular signals, including
growth and differentiation factors. Cellular CRK (c-CRK)
contains a single SH2 domain, followed by N-terminal and
C-terminal SH3 domains. It is involved in the regulation
of many cellular processes including cell growth,
motility, adhesion, and apoptosis. CRK has been
implicated in the malignancy of various human cancers.
The N-terminal SH3 domain of CRK binds a number of
target proteins including DOCK180, C3G, SOS, and cABL.
The CRK family includes two alternatively spliced
protein forms, CRKI and CRKII, that are expressed by the
CRK gene, and the CRK-like (CRKL) protein, which is
expressed by a distinct gene (CRKL). SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 55
Score = 48.1 bits (115), Expect = 1e-07
Identities = 18/53 (33%), Positives = 27/53 (50%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
V AL+ F + DL +KG V+ +E WW ++ G G IP YV++
Sbjct: 3 VRALFDFPGNDDEDLPFKKGEILTVIRKPEEQWWNARNSEGKTGMIPVPYVEK 55
Score = 32.7 bits (75), Expect = 0.033
Identities = 13/41 (31%), Positives = 20/41 (48%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNG 115
V AL+ F + DL +KG V+ +E WW ++ G
Sbjct: 3 VRALFDFPGNDDEDLPFKKGEILTVIRKPEEQWWNARNSEG 43
>gnl|CDD|212844 cd11911, SH3_CIP4-like, Src Homology 3 domain of Cdc42-Interacting
Protein 4. This subfamily is composed of
Cdc42-Interacting Protein 4 (CIP4), Formin Binding
Protein 17 (FBP17), FormiN Binding Protein 1-Like
(FNBP1L), and similar proteins. CIP4 and FNBP1L are
Cdc42 effectors that bind Wiskott-Aldrich syndrome
protein (WASP) and function in endocytosis. CIP4 and
FBP17 bind to the Fas ligand and may be implicated in
the inflammatory response. CIP4 may also play a role in
phagocytosis. It functions downstream of Cdc42 in
PDGF-dependent actin reorganization and cell migration,
and also regulates the activity of PDGFRbeta. It uses
Src as a substrate in regulating the invasiveness of
breast tumor cells. CIP4 may also play a role in the
pathogenesis of Huntington's disease. Members of this
subfamily typically contain an N-terminal F-BAR
(FES-CIP4 Homology and Bin/Amphiphysin/Rvs) domain, a
central Cdc42-binding HR1 domain, and a C-terminal SH3
domain. The SH3 domain of CIP4 associates with Gapex-5,
a Rab31 GEF. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 48.0 bits (115), Expect = 1e-07
Identities = 19/54 (35%), Positives = 31/54 (57%), Gaps = 1/54 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVM-DDTQEHWWKVKDKNGSVGYIPSNYVK 179
ALY F G LS+E+G V+ +D + W +V+ NG GY+P++Y++
Sbjct: 1 TCTALYDFDGTSEGTLSMEEGEILLVLEEDGGDGWTRVRKNNGDEGYVPTSYIE 54
Score = 32.2 bits (74), Expect = 0.044
Identities = 15/43 (34%), Positives = 22/43 (51%), Gaps = 1/43 (2%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVM-DDTQEHWWKVKDKNG 115
ALY F G LS+E+G V+ +D + W +V+ NG
Sbjct: 1 TCTALYDFDGTSEGTLSMEEGEILLVLEEDGGDGWTRVRKNNG 43
>gnl|CDD|212918 cd11985, SH3_Stac2_C, C-terminal Src homology 3 domain of SH3 and
cysteine-rich domain-containing protein 2 (Stac2). Stac
proteins are putative adaptor proteins that contain a
cysteine-rich C1 domain and one or two SH3 domains at
the C-terminus. There are three mammalian members
(Stac1, Stac2, and Stac3) of this family. Stac2 contains
a single SH3 domain at the C-terminus unlike Stac1 and
Stac3, which contain two C-terminal SH3 domains. Stac1
and Stac2 have been found to be expressed differently in
mature dorsal root ganglia (DRG) neurons. Stac1 is
mainly expressed in peptidergic neurons while Stac2 is
found in a subset of nonpeptidergic and all trkB+
neurons. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 48.0 bits (114), Expect = 1e-07
Identities = 23/51 (45%), Positives = 31/51 (60%), Gaps = 1/51 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
VALY F E DL L+ G V+DD+ E WWK K + VG+ P+N+V+
Sbjct: 3 VALYKFLPQENNDLPLQPGDRVMVVDDSNEDWWKGKSGD-RVGFFPANFVQ 52
Score = 40.3 bits (94), Expect = 7e-05
Identities = 20/43 (46%), Positives = 24/43 (55%), Gaps = 2/43 (4%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK--DKNGI 116
VALY F E DL L+ G V+DD+ E WWK K D+ G
Sbjct: 3 VALYKFLPQENNDLPLQPGDRVMVVDDSNEDWWKGKSGDRVGF 45
>gnl|CDD|212695 cd11761, SH3_FCHSD_1, First Src Homology 3 domain of FCH and double
SH3 domains proteins. This group is composed of FCH and
double SH3 domains protein 1 (FCHSD1) and FCHSD2. These
proteins have a common domain structure consisting of an
N-terminal F-BAR (FES-CIP4 Homology and
Bin/Amphiphysin/Rvs), two SH3, and C-terminal
proline-rich domains. They have only been characterized
in silico and their functions remain unknown. This group
also includes the insect protein, nervous wreck, which
acts as a regulator of synaptic growth signaling. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 57
Score = 48.1 bits (115), Expect = 1e-07
Identities = 19/51 (37%), Positives = 32/51 (62%), Gaps = 1/51 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVM-DDTQEHWWKVKDKNGSVGYIPSNYV 178
LY ++A +L++ +G E EV+ D + W K ++K+G VGY+P NY+
Sbjct: 5 KVLYSYEAQRPDELTITEGEELEVIEDGDGDGWVKARNKSGEVGYVPENYL 55
Score = 30.8 bits (70), Expect = 0.17
Identities = 13/41 (31%), Positives = 24/41 (58%), Gaps = 1/41 (2%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVM-DDTQEHWWKVKDKNG 115
LY ++A +L++ +G E EV+ D + W K ++K+G
Sbjct: 5 KVLYSYEAQRPDELTITEGEELEVIEDGDGDGWVKARNKSG 45
>gnl|CDD|212739 cd11805, SH3_GRB2_like_C, C-terminal Src homology 3 domain of
Growth factor receptor-bound protein 2 (GRB2) and
related proteins. This family includes the adaptor
protein GRB2 and related proteins including Drosophila
melanogaster Downstream of receptor kinase (DRK),
Caenorhabditis elegans Sex muscle abnormal protein 5
(Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and
similar proteins. Family members contain an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. GRB2/Sem-5/DRK is a critical signaling molecule
that regulates the Ras pathway by linking tyrosine
kinases to the Ras guanine nucleotide releasing protein
Sos (son of sevenless), which converts Ras to the active
GTP-bound state. GRAP2 plays an important role in T cell
receptor (TCR) signaling by promoting the formation of
the SLP-76:LAT complex, which couples the TCR to the Ras
pathway. GRAP acts as a negative regulator of T cell
receptor (TCR)-induced lymphocyte proliferation by
downregulating the signaling to the Ras/ERK pathway. The
C-terminal SH3 domains (SH3c) of GRB2 and GRAP2 have
been shown to bind to classical PxxP motif ligands, as
well as to non-classical motifs. GRB2 SH3c binds Gab2
(Grb2-associated binder 2) through epitopes containing
RxxK motifs, while the SH3c of GRAP2 binds to the
phosphatase-like protein HD-PTP via a RxxxxK motif. SH3
domains are protein interaction domains that typically
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 47.6 bits (114), Expect = 1e-07
Identities = 21/53 (39%), Positives = 28/53 (52%), Gaps = 1/53 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
V ALY F E G+L +G V+D + WWK + G VG P+NYV+
Sbjct: 2 VQALYDFNPQEPGELEFRRGDIITVLDSSDPDWWK-GELRGRVGIFPANYVQP 53
Score = 36.8 bits (86), Expect = 0.001
Identities = 16/44 (36%), Positives = 23/44 (52%), Gaps = 2/44 (4%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK--VKDKNGI 116
V ALY F E G+L +G V+D + WWK ++ + GI
Sbjct: 2 VQALYDFNPQEPGELEFRRGDIITVLDSSDPDWWKGELRGRVGI 45
>gnl|CDD|212837 cd11904, SH3_Nck1_3, Third Src Homology 3 domain of Nck1 adaptor
protein. Nck1 (also called Nckalpha) plays a crucial
role in connecting signaling pathways of tyrosine kinase
receptors and important effectors in actin dynamics and
cytoskeletal remodeling. It binds and activates RasGAP,
resulting in the downregulation of Ras. It is also
involved in the signaling of endothilin-mediated
inhibition of cell migration. Nck adaptor proteins
regulate actin cytoskeleton dynamics by linking
proline-rich effector molecules to protein tyrosine
kinases and phosphorylated signaling intermediates. They
contain three SH3 domains and a C-terminal SH2 domain.
They function downstream of the PDGFbeta receptor and
are involved in Rho GTPase signaling and actin dynamics.
Vertebrates contain two Nck adaptor proteins: Nck1 (also
called Nckalpha) and Nck2, which show partly overlapping
functions but also bind distinct targets. The third SH3
domain of Nck appears to prefer ligands with a PxAPxR
motif. SH3 domains are protein interaction domains that
usually bind to proline-rich ligands with moderate
affinity and selectivity, preferentially a PxxP motif.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 57
Score = 47.7 bits (113), Expect = 2e-07
Identities = 23/54 (42%), Positives = 32/54 (59%), Gaps = 2/54 (3%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMD--DTQEHWWKVKDKNGSVGYIPSNYV 178
VV ALYPF + +L+ EKG +V++ + WWK + NG VG +P NYV
Sbjct: 2 VVQALYPFSSSNDEELNFEKGEVMDVIEKPENDPEWWKCRKANGQVGLVPKNYV 55
Score = 34.6 bits (79), Expect = 0.007
Identities = 17/45 (37%), Positives = 25/45 (55%), Gaps = 2/45 (4%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMD--DTQEHWWKVKDKNGI 116
VV ALYPF + +L+ EKG +V++ + WWK + NG
Sbjct: 2 VVQALYPFSSSNDEELNFEKGEVMDVIEKPENDPEWWKCRKANGQ 46
>gnl|CDD|198206 cd10343, SH2_SHIP, Src homology 2 (SH2) domain found in
SH2-containing inositol-5'-phosphatase (SHIP) and
SLAM-associated protein (SAP). The SH2-containing
inositol-5'-phosphatase, SHIP (also called
SHIP1/SHIP1a), is a hematopoietic-restricted
phosphatidylinositide phosphatase that translocates to
the plasma membrane after extracellular stimulation and
hydrolyzes the phosphatidylinositol-3-kinase
(PI3K)-generated second messenger PI-3,4,5-P3 (PIP3) to
PI-3,4-P2. As a result, SHIP dampens down PIP3 mediated
signaling and represses the proliferation,
differentiation, survival, activation, and migration of
hematopoietic cells. PIP3 recruits lipid-binding
pleckstrin homology(PH) domain-containing proteins to
the inner wall of the plasma membrane and activates
them. PH domain-containing downstream effectors include
the survival/proliferation enhancing serine/threonine
kinase, Akt (protein kinase B), the tyrosine kinase,
Btk, the regulator of protein translation, S6K, and the
Rac and cdc42 guanine nucleotide exchange factor, Vav.
SHIP is believed to act as a tumor suppressor during
leukemogenesis and lymphomagenesis, and may play a role
in activating the immune system to combat cancer. SHIP
contains an N-terminal SH2 domain, a centrally located
phosphatase domain that specifically hydrolyzes the
5'-phosphate from PIP3, PI-4,5-P2 and inositol-1,3,4,5-
tetrakisphosphate (IP4), a C2 domain, that is an
allosteric activating site when bound by SHIP's
enzymatic product, PI-3,4-P2; 2 NPXY motifs that bind
proteins with a phosphotyrosine binding (Shc, Dok 1, Dok
2) or an SH2 (p85a, SHIP2) domain; and a proline-rich
domain consisting of four PxxP motifs that bind a subset
of SH3-containing proteins including Grb2, Src, Lyn,
Hck, Abl, PLCg1, and PIAS1. The SH2 domain of SHIP binds
to the tyrosine phosphorylated forms of Shc, SHP-2,
Doks, Gabs, CD150, platelet-endothelial cell adhesion
molecule, Cas, c-Cbl, immunoreceptor tyrosine-based
inhibitory motifs (ITIMs), and immunoreceptor
tyrosine-based activation motifs (ITAMs). The X-linked
lymphoproliferative syndrome (XLP) gene encodes SAP
(also called SH2D1A/DSHP) a protein that consists of a 5
residue N-terminus, a single SH2 domain, and a short 25
residue C-terminal tail. XLP is characterized by an
extreme sensitivity to Epstein-Barr virus. Both T and
natural killer (NK) cell dysfunctions have been seen in
XLP patients. SAP binds the cytoplasmic tail of
Signaling lymphocytic activation molecule (SLAM), 2B4,
Ly-9, and CD84. SAP is believed to function as a
signaling inhibitor, by blocking or regulating binding
of other signaling proteins. SAP and the SAP-like
protein EAT-2 recognize the sequence motif TIpYXX(V/I),
which is found in the cytoplasmic domains of a
restricted number of T, B, and NK cell surface receptors
and are proposed to be natural inhibitors or regulators
of the physiological role of a small family of receptors
on the surface of these cells. In general SH2 domains
are involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 103
Score = 49.0 bits (117), Expect = 2e-07
Identities = 23/66 (34%), Positives = 34/66 (51%), Gaps = 6/66 (9%)
Query: 254 PKAWYVGDMSRQRAESILKQEDKEGCFVVRNS-STKGLYTLS-LYTKVPHPHVKHYHIKQ 311
WY G+++R +AE +L + K+G F+VR+S S G Y L LY V Y I
Sbjct: 2 APPWYHGNITRSKAEELLSKAGKDGSFLVRDSESVSGAYALCVLYQN----CVHTYRILP 57
Query: 312 NSRGEF 317
N+ +
Sbjct: 58 NAEDKL 63
Score = 32.0 bits (73), Expect = 0.18
Identities = 24/81 (29%), Positives = 36/81 (44%), Gaps = 15/81 (18%)
Query: 334 KEGCFVVRNS-STKGLYTLS-LYTKVPHPHVKHYHIKQNSRGEFFLS-------EKHCCH 384
K+G F+VR+S S G Y L LY V Y I N E LS
Sbjct: 24 KDGSFLVRDSESVSGAYALCVLYQN----CVHTYRILPN--AEDKLSVQASEGVPVRFFT 77
Query: 385 SIPEVVNYHRHNSGGLASRLK 405
++PE++ +++ + GL + L
Sbjct: 78 TLPELIEFYQKENMGLVTHLL 98
>gnl|CDD|173655 cd05110, PTKc_HER4, Catalytic domain of the Protein Tyrosine
Kinase, HER4. Protein Tyrosine Kinase (PTK) family;
HER4 (ErbB4); catalytic (c) domain. The PTKc family is
part of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. HER4 is a
member of the EGFR (HER, ErbB) subfamily of proteins,
which are receptor tyr kinases (RTKs) containing an
extracellular EGF-related ligand-binding region, a
transmembrane helix, and a cytoplasmic region with a tyr
kinase domain and a regulatory C-terminal tail. Unlike
other tyr kinases, phosphorylation of the activation
loop of EGFR proteins is not critical to their
activation. Instead, they are activated by
ligand-induced dimerization, leading to the
phosphorylation of tyr residues in the C-terminal tail,
which serve as binding sites for downstream signaling
molecules. Ligands that bind HER4 fall into two groups,
the neuregulins (or heregulins) and some EGFR (HER1)
ligands including betacellulin, HBEGF, and epiregulin.
All four neuregulins (NRG1-4) interact with HER4. Upon
ligand binding, HER4 forms homo- or heterodimers with
other HER proteins. HER4 is essential in embryonic
development. It is implicated in mammary gland, cardiac,
and neural development. As a postsynaptic receptor of
NRG1, HER4 plays an important role in synaptic
plasticity and maturation. The impairment of NRG1/HER4
signaling may contribute to schizophrenia.
Length = 303
Score = 52.8 bits (126), Expect = 2e-07
Identities = 24/60 (40%), Positives = 37/60 (61%), Gaps = 4/60 (6%)
Query: 195 LTLELIHQVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
+ LE IH Y +F+ +SDVW+YGV +WE+ T G PY + E+ D +++G L +P
Sbjct: 178 MALECIH----YRKFTHQSDVWSYGVTIWELMTFGGKPYDGIPTREIPDLLEKGERLPQP 233
Score = 48.9 bits (116), Expect = 3e-06
Identities = 21/47 (44%), Positives = 31/47 (65%), Gaps = 2/47 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M HG LL+Y+ H++ +G LLL+ C+Q+ KGM YLE +HR+
Sbjct: 90 MPHGCLLDYVHEHKDNIGSQ--LLLNWCVQIAKGMMYLEERRLVHRD 134
Score = 42.4 bits (99), Expect = 4e-04
Identities = 24/71 (33%), Positives = 40/71 (56%), Gaps = 9/71 (12%)
Query: 430 ELMLLEELGSGQFGVVRRGKW-------RGSIDVAMMKE--GTMSEDDFIEEAKVMTRLQ 480
EL ++ LGSG FG V +G W + + + ++ E G + +F++EA +M +
Sbjct: 8 ELKRVKVLGSGAFGTVYKGIWVPEGETVKIPVAIKILNETTGPKANVEFMDEALIMASMD 67
Query: 481 HQNLVQLYGVC 491
H +LV+L GVC
Sbjct: 68 HPHLVRLLGVC 78
>gnl|CDD|198230 cd10367, SH2_Src_Fgr, Src homology 2 (SH2) domain found in
Gardner-Rasheed feline sarcoma viral (v-fgr) oncogene
homolog, Fgr. Fgr is a member of the Src non-receptor
type tyrosine kinase family of proteins. The protein
contains N-terminal sites for myristoylation and
palmitoylation, a PTK domain, and SH2 and SH3 domains
which are involved in mediating protein-protein
interactions with phosphotyrosine-containing and
proline-rich motifs, respectively. Fgr is expressed in
B-cells and myeloid cells, localizes to plasma membrane
ruffles, and functions as a negative regulator of cell
migration and adhesion triggered by the beta-2 integrin
signal transduction pathway. Multiple alternatively
spliced variants, encoding the same protein, have been
identified Fgr has been shown to interact with
Wiskott-Aldrich syndrome protein. Fgr has a unique
N-terminal domain, an SH3 domain, an SH2 domain, a
kinase domain and a regulatory tail, as do the other
members of the family. In general SH2 domains are
involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 101
Score = 48.7 bits (116), Expect = 2e-07
Identities = 24/72 (33%), Positives = 43/72 (59%), Gaps = 4/72 (5%)
Query: 255 KAWYVGDMSRQRAE-SILKQEDKEGCFVVRNS-STKGLYTLSL--YTKVPHPHVKHYHIK 310
+ WY G + R+ AE +L + G F++R S +TKG Y+LS+ + + HVKHY I+
Sbjct: 3 EEWYFGKIGRKDAERQLLSPGNPRGAFLIRESETTKGAYSLSIRDWDQNRGDHVKHYKIR 62
Query: 311 QNSRGEFFLSEK 322
+ G ++++ +
Sbjct: 63 KLDTGGYYITTR 74
Score = 39.5 bits (92), Expect = 3e-04
Identities = 24/77 (31%), Positives = 45/77 (58%), Gaps = 4/77 (5%)
Query: 335 EGCFVVRNS-STKGLYTLSL--YTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVN 391
G F++R S +TKG Y+LS+ + + HVKHY I++ G ++++ + ++ E+V
Sbjct: 26 RGAFLIRESETTKGAYSLSIRDWDQNRGDHVKHYKIRKLDTGGYYITTRAQFDTVQELVQ 85
Query: 392 YHRHNSGGLASRLKTSP 408
++ + GL L T+P
Sbjct: 86 HYMEVNDGLCYLL-TAP 101
>gnl|CDD|212776 cd11842, SH3_Ysc84p_like, Src homology 3 domain of Ysc84p and
similar fungal proteins. This family is composed of the
Saccharomyces cerevisiae proteins, Ysc84p (also called
LAS17-binding protein 4, Lsb4p) and Lsb3p, and similar
fungal proteins. They contain an N-terminal SYLF domain
(also called DUF500) and a C-terminal SH3 domain. Ysc84p
localizes to actin patches and plays an important in
actin polymerization during endocytosis. The N-terminal
domain of both Ysc84p and Lsb3p can bind and bundle
actin filaments. A study of the yeast SH3 domain
interactome predicts that the SH3 domains of Lsb3p and
Lsb4p may function as molecular hubs for the assembly of
endocytic complexes. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 47.4 bits (113), Expect = 2e-07
Identities = 20/55 (36%), Positives = 29/55 (52%), Gaps = 3/55 (5%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMD--DTQEHWWKVKDKNGSVGYIPSNYVKE 180
VALY F + GDL+ +KG ++ D+Q WW + G G P+NYV+
Sbjct: 2 AVALYDFAGEQPGDLAFQKGDIITILKKSDSQNDWWTGR-IGGREGIFPANYVEL 55
Score = 39.3 bits (92), Expect = 2e-04
Identities = 16/46 (34%), Positives = 25/46 (54%), Gaps = 4/46 (8%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMD--DTQEHWW--KVKDKNGI 116
VALY F + GDL+ +KG ++ D+Q WW ++ + GI
Sbjct: 2 AVALYDFAGEQPGDLAFQKGDIITILKKSDSQNDWWTGRIGGREGI 47
>gnl|CDD|198228 cd10365, SH2_Src_Src, Src homology 2 (SH2) domain found in tyrosine
kinase sarcoma (Src). Src is a member of the Src
non-receptor type tyrosine kinase family of proteins.
Src is thought to play a role in the regulation of
embryonic development and cell growth. Members here
include v-Src and c-Src. v-Src lacks the C-terminal
inhibitory phosphorylation site and is therefore
constitutively active as opposed to normal cellular src
(c-Src) which is only activated under certain
circumstances where it is required (e.g. growth factor
signaling). v-Src is an oncogene whereas c-Src is a
proto-oncogene. c-Src consists of three domains, an
N-terminal SH3 domain, a central SH2 domain and a
tyrosine kinase domain. The SH2 and SH3 domains work
together in the auto-inhibition of the kinase domain.
The phosphorylation of an inhibitory tyrosine near the
c-terminus of the protein produces a binding site for
the SH2 domain which then facilitates binding of the SH3
domain to a polyproline site within the linker between
the SH2 domain and the kinase domain. Binding of the SH3
domain inactivates the enzyme. This allows for multiple
mechanisms for c-Src activation: dephosphorylation of
the C-terminal tyrosine by a protein tyrosine
phosphatase, binding of the SH2 domain by a competitive
phospho-tyrosine residue, or competitive binding of a
polyproline binding site to the SH3 domain. Unlike most
other Src members Src lacks cysteine residues in the SH4
domain that undergo palmitylation. Serine and threonine
phosphorylation sites have also been identified in the
unique domains of Src and are believed to modulate
protein-protein interactions or regulate catalytic
activity. Alternatively spliced forms of Src, which
contain 6- or 11-amino acid insertions in the SH3
domain, are expressed in CNS neurons. c-Src has a unique
N-terminal domain, an SH3 domain, an SH2 domain, a
kinase domain and a regulatory tail, as do the other
members of the family. In general SH2 domains are
involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 101
Score = 48.5 bits (115), Expect = 2e-07
Identities = 26/79 (32%), Positives = 46/79 (58%), Gaps = 3/79 (3%)
Query: 331 VKDKEGCFVVRNS-STKGLYTLSL--YTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIP 387
++ G F+VR S +TKG Y LS+ + +VKHY I++ G F+++ + +S+
Sbjct: 22 AENPRGTFLVRESETTKGAYCLSVSDFDNAKGLNVKHYKIRKLDSGGFYITSRTQFNSLQ 81
Query: 388 EVVNYHRHNSGGLASRLKT 406
++V Y+ ++ GL RL T
Sbjct: 82 QLVAYYSKHADGLCHRLTT 100
Score = 48.5 bits (115), Expect = 3e-07
Identities = 25/70 (35%), Positives = 42/70 (60%), Gaps = 4/70 (5%)
Query: 257 WYVGDMSRQRAESIL-KQEDKEGCFVVRNS-STKGLYTLSL--YTKVPHPHVKHYHIKQN 312
WY G ++R+ +E +L E+ G F+VR S +TKG Y LS+ + +VKHY I++
Sbjct: 5 WYFGKITRRESERLLLNAENPRGTFLVRESETTKGAYCLSVSDFDNAKGLNVKHYKIRKL 64
Query: 313 SRGEFFLSEK 322
G F+++ +
Sbjct: 65 DSGGFYITSR 74
>gnl|CDD|173635 cd05054, PTKc_VEGFR, Catalytic domain of the Protein Tyrosine
Kinases, Vascular Endothelial Growth Factor Receptors.
Protein Tyrosine Kinase (PTK) family; Vascular
Endothelial Growth Factor Receptor (VEGFR) subfamily;
catalytic (c) domain. The VEGFR subfamily consists of
VEGFR1 (Flt1), VEGFR2 (Flk1), VEGFR3 (Flt4), and similar
proteins. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
VEGFR subfamily members are receptor tyr kinases (RTKs)
containing an extracellular ligand-binding region with
seven immunoglobulin (Ig)-like domains, a transmembrane
segment, and an intracellular catalytic domain. In
VEGFR3, the fifth Ig-like domain is replaced by a
disulfide bridge. The binding of VEGFRs to their
ligands, the VEGFs, leads to receptor dimerization,
activation, and intracellular signaling. There are five
VEGF ligands in mammals, which bind, in an overlapping
pattern to the three VEGFRs, which can form homo or
heterodimers. VEGFRs regulate the cardiovascular system.
They are critical for vascular development during
embryogenesis and blood vessel formation in adults. They
induce cellular functions common to other growth factor
receptors such as cell migration, survival, and
proliferation. VEGFR1 binds VEGFA, VEGFB, and placenta
growth factor (PLGF). It regulates monocyte and
macrophage migration, vascular permeability,
haematopoiesis, and the recruitment of haematopietic
progenitor cells from the bone marrow.
Length = 337
Score = 52.2 bits (125), Expect = 3e-07
Identities = 17/48 (35%), Positives = 33/48 (68%), Gaps = 1/48 (2%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLK-NTEVVDRVQRGIILEKPK 255
++++SDVW++GVL+WE+F+ G PY ++ + E R++ G + P+
Sbjct: 252 YTTQSDVWSFGVLLWEIFSLGASPYPGVQIDEEFCRRLKEGTRMRAPE 299
Score = 37.1 bits (86), Expect = 0.015
Identities = 28/86 (32%), Positives = 38/86 (44%), Gaps = 19/86 (22%)
Query: 423 KWEIDPAELMLLEELGSGQFGVVRRGKWRG--------SIDVAMMKEGTMSEDDFIEEAK 474
KWE L L + LG G FG V + G ++ V M+KEG + E
Sbjct: 1 KWEFPRDRLKLGKPLGRGAFGKVIQASAFGIEKSASCRTVAVKMLKEGATAS----EYKA 56
Query: 475 VMTRLQ-------HQNLVQLYGVCSK 493
+MT L+ H N+V L G C+K
Sbjct: 57 LMTELKILIHIGHHLNVVNLLGACTK 82
>gnl|CDD|133175 cd05043, PTK_Ryk, Pseudokinase domain of Ryk (Receptor related to
tyrosine kinase). Protein Tyrosine Kinase (PTK) family;
Receptor related to tyrosine kinase (Ryk); pseudokinase
domain. The PTKc (catalytic domain) family to which this
subfamily belongs, is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Ryk is a
receptor tyr kinase (RTK) containing an extracellular
region with two leucine-rich motifs, a transmembrane
segment, and an intracellular inactive pseudokinase
domain. The extracellular region of Ryk shows homology
to the N-terminal domain of Wnt inhibitory factor-1
(WIF) and serves as the ligand (Wnt) binding domain of
Ryk. Ryk is expressed in many different tissues both
during development and in adults, suggesting a
widespread function. It acts as a chemorepulsive axon
guidance receptor of Wnt glycoproteins and is
responsible for the establishment of axon tracts during
the development of the central nervous system. In
addition, studies in mice reveal that Ryk is essential
in skeletal, craniofacial, and cardiac development.
Thus, it appears Ryk is involved in signal transduction
despite its lack of kinase activity. Ryk may function as
an accessory protein that modulates the signals coming
from catalytically active partner RTKs such as the Eph
receptors.
Length = 280
Score = 51.6 bits (124), Expect = 3e-07
Identities = 32/104 (30%), Positives = 53/104 (50%), Gaps = 12/104 (11%)
Query: 152 VMDDTQEHWWKVKDKNGSVGYIPSNYVKEKELLGLQKYDDVNGLTLE-LIHQVLNYTRFS 210
V+D+ + K+ D S P +Y LG + V + LE L+++ +S
Sbjct: 149 VIDEELQ--VKITDNALSRDLFPMDY----HCLGDNENRPVKWMALESLVNKE-----YS 197
Query: 211 SKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
S SDVW++GVL+WE+ T G+ PY + E+ ++ G L +P
Sbjct: 198 SASDVWSFGVLLWELMTLGQTPYVEIDPFEMAAYLKDGYRLAQP 241
Score = 32.4 bits (74), Expect = 0.49
Identities = 10/24 (41%), Positives = 16/24 (66%)
Query: 24 LLDMCIQVCKGMAYLERHNYIHRE 47
L+ M IQ+ GM+YL + IH++
Sbjct: 119 LVHMAIQIACGMSYLHKRGVIHKD 142
>gnl|CDD|212896 cd11963, SH3_STAM2, Src homology 3 domain of Signal Transducing
Adaptor Molecule 2. STAM2, also called EAST (Epidermal
growth factor receptor-associated protein with SH3 and
TAM domain) or Hbp (Hrs binding protein), is part of the
endosomal sorting complex required for transport
(ESCRT-0). It plays a role in sorting mono-ubiquinated
endosomal cargo for trafficking to the lysosome for
degradation. It is also involved in the regulation of
exocytosis. STAMs were discovered as proteins that are
highly phosphorylated following cytokine and growth
factor stimulation. They function in cytokine signaling
and surface receptor degradation, as well as regulate
Golgi morphology. They associate with many proteins
including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and
UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs,
STAM homology), ubiquitin interacting (UIM), and SH3
domains. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 57
Score = 46.9 bits (111), Expect = 3e-07
Identities = 22/51 (43%), Positives = 33/51 (64%), Gaps = 1/51 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
V ALY F+A+E +L+ + G V+DD+ +WWK ++ G VG PSN+V
Sbjct: 4 VRALYDFEAVEDNELTFKHGEIIIVLDDSDANWWKGENHRG-VGLFPSNFV 53
Score = 39.6 bits (92), Expect = 1e-04
Identities = 16/42 (38%), Positives = 27/42 (64%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGI 116
V ALY F+A+E +L+ + G V+DD+ +WWK ++ G+
Sbjct: 4 VRALYDFEAVEDNELTFKHGEIIIVLDDSDANWWKGENHRGV 45
>gnl|CDD|173656 cd05111, PTK_HER3, Pseudokinase domain of the Protein Tyrosine
Kinase, HER3. Protein Tyrosine Kinase (PTK) family;
HER3 (ErbB3); pseudokinase domain. The PTKc (catalytic
domain) family to which this subfamily belongs, is part
of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. HER3 is a
member of the EGFR (HER, ErbB) subfamily of proteins,
which are receptor tyr kinases (RTKs) containing an
extracellular EGF-related ligand-binding region, a
transmembrane helix, and a cytoplasmic region with a tyr
kinase domain and a regulatory C-terminal tail. Unlike
other tyr kinases, phosphorylation of the activation
loop of EGFR proteins is not critical to their
activation. Instead, they are activated by
ligand-induced dimerization, leading to the
phosphorylation of tyr residues in the C-terminal tail,
which serve as binding sites for downstream signaling
molecules. HER3 binds the neuregulin ligands, NRG1 and
NRG2. HER3 contains an impaired tyr kinase domain and
relies on its heterodimerization partners for activity
following ligand binding. The HER2-HER3 heterodimer
constitutes a high affinity co-receptor capable of
potent mitogenic signaling. HER3 participates in a
signaling pathway involved in the proliferation,
survival, adhesion, and motility of tumor cells.
Length = 279
Score = 51.9 bits (124), Expect = 3e-07
Identities = 20/44 (45%), Positives = 30/44 (68%), Gaps = 2/44 (4%)
Query: 3 HGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHR 46
GSLL+++R+H ++L LL+ C+Q+ KGM YLE H +HR
Sbjct: 92 LGSLLDHVRQHRDSLDPQ--RLLNWCVQIAKGMYYLEEHRMVHR 133
Score = 51.5 bits (123), Expect = 3e-07
Identities = 24/79 (30%), Positives = 44/79 (55%), Gaps = 4/79 (5%)
Query: 177 YVKEKELLGLQKYDDVNGLTLELIHQVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRL 236
Y +K+ + + + LE I + R++ +SDVW+YGV +WE+ + G PY +
Sbjct: 160 YPDDKKYFYSEHKTPIKWMALESIL----FGRYTHQSDVWSYGVTVWEMMSYGAEPYAGM 215
Query: 237 KNTEVVDRVQRGIILEKPK 255
+ EV D +++G L +P+
Sbjct: 216 RPHEVPDLLEKGERLAQPQ 234
Score = 33.8 bits (77), Expect = 0.16
Identities = 22/73 (30%), Positives = 32/73 (43%), Gaps = 9/73 (12%)
Query: 428 PAELMLLEELGSGQFGVVRRGKW--RG-------SIDVAMMKEGTMSEDDFIEEAKVMTR 478
EL L+ LGSG FG V +G W G +I + G + + + M
Sbjct: 6 ETELRKLKLLGSGVFGTVHKGIWIPEGDSIKIPVAIKTIQDRSGRQTFQEITDHMLAMGS 65
Query: 479 LQHQNLVQLYGVC 491
L H +V+L G+C
Sbjct: 66 LDHAYIVRLLGIC 78
>gnl|CDD|133238 cd05107, PTKc_PDGFR_beta, Catalytic domain of the Protein Tyrosine
Kinase, Platelet Derived Growth Factor Receptor beta.
Protein Tyrosine Kinase (PTK) family; Platelet Derived
Growth Factor Receptor (PDGFR) beta; catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. PDGFR
beta is a receptor tyr kinase (RTK) containing an
extracellular ligand-binding region with five
immunoglobulin-like domains, a transmembrane segment,
and an intracellular catalytic domain. The binding to
its ligands, the PDGFs, leads to receptor dimerization,
trans phosphorylation and activation, and intracellular
signaling. PDGFR beta forms homodimers or heterodimers
with PDGFR alpha, depending on the nature of the PDGF
ligand. PDGF-BB and PDGF-DD induce PDGFR beta
homodimerization. PDGFR signaling plays many roles in
normal embryonic development and adult physiology. PDGFR
beta signaling leads to a variety of cellular effects
including the stimulation of cell growth and chemotaxis,
as well as the inhibition of apoptosis and GAP
junctional communication. It is critical in normal
angiogenesis as it is involved in the recruitment of
pericytes and smooth muscle cells essential for vessel
stability. Aberrant PDGFR beta expression is associated
with some human cancers. The continuously-active fusion
proteins of PDGFR beta with COL1A1 and TEL are
associated with dermatofibrosarcoma protuberans (DFSP)
and a subset of chronic myelomonocytic leukemia (CMML),
respectively.
Length = 401
Score = 52.3 bits (125), Expect = 3e-07
Identities = 36/101 (35%), Positives = 48/101 (47%), Gaps = 13/101 (12%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRG--------SIDVAMMKEGTMSEDD--FIEEA 473
WE+ L+L LGSG FG V G + V M+K S + + E
Sbjct: 32 WEMPRDNLVLGRTLGSGAFGRVVEATAHGLSHSQSTMKVAVKMLKSTARSSEKQALMSEL 91
Query: 474 KVMTRL-QHQNLVQLYGVCSKHRPIYIVTDTSSFRLGLLAD 513
K+M+ L H N+V L G C+K PIYI+T+ R G L D
Sbjct: 92 KIMSHLGPHLNIVNLLGACTKGGPIYIITEYC--RYGDLVD 130
Score = 47.7 bits (113), Expect = 9e-06
Identities = 19/47 (40%), Positives = 32/47 (68%), Gaps = 1/47 (2%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLK-NTEVVDRVQRGIILEKP 254
+++ SDVW++G+L+WE+FT G PY L N + + ++RG + KP
Sbjct: 318 YTTLSDVWSFGILLWEIFTLGGTPYPELPMNEQFYNAIKRGYRMAKP 364
>gnl|CDD|198184 cd09930, SH2_cSH2_p85_like, C-terminal Src homology 2 (cSH2) domain
found in p85. Phosphoinositide 3-kinases (PI3Ks) are
essential for cell growth, migration, and survival.
p110, the catalytic subunit, is composed of an
adaptor-binding domain, a Ras-binding domain, a C2
domain, a helical domain, and a kinase domain. The
regulatory unit is called p85 and is composed of an SH3
domain, a RhoGap domain, a N-terminal SH2 (nSH2) domain,
a inter SH2 (iSH2) domain, and C-terminal (cSH2) domain.
There are 2 inhibitory interactions between p110alpha
and p85 of P13K: 1) p85 nSH2 domain with the C2,
helical, and kinase domains of p110alpha and 2) p85 iSH2
domain with C2 domain of p110alpha. There are 3
inhibitory interactions between p110beta and p85 of
P13K: 1) p85 nSH2 domain with the C2, helical, and
kinase domains of p110beta, 2) p85 iSH2 domain with C2
domain of p110alpha, and 3) p85 cSH2 domain with the
kinase domain of p110alpha. It is interesting to note
that p110beta is oncogenic as a wild type protein while
p110alpha lacks this ability. One explanation is the
idea that the regulation of p110beta by p85 is unique
because of the addition of inhibitory contacts from the
cSH2 domain and the loss of contacts in the iSH2 domain.
In general SH2 domains are involved in signal
transduction. They typically bind pTyr-containing
ligands via two surface pockets, a pTyr and hydrophobic
binding pocket, allowing proteins with SH2 domains to
localize to tyrosine phosphorylated sites.
Length = 104
Score = 48.2 bits (115), Expect = 3e-07
Identities = 23/61 (37%), Positives = 37/61 (60%), Gaps = 4/61 (6%)
Query: 255 KAWYVGDMSRQRAESILKQEDKEGCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHIKQNSR 314
+ W VGD++R +AE +L+ + +G F++R SST+G Y S+ V + VKH I +
Sbjct: 6 RTWLVGDINRTQAEELLRGK-PDGTFLIRESSTQGCYACSV---VCNGEVKHCVIYKTET 61
Query: 315 G 315
G
Sbjct: 62 G 62
Score = 36.2 bits (84), Expect = 0.006
Identities = 22/63 (34%), Positives = 34/63 (53%), Gaps = 3/63 (4%)
Query: 335 EGCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVNYHR 394
+G F++R SST+G Y S+ V + VKH I + G F + S+ E+V ++
Sbjct: 27 DGTFLIRESSTQGCYACSV---VCNGEVKHCVIYKTETGYGFAEPYNLYESLKELVLHYA 83
Query: 395 HNS 397
HNS
Sbjct: 84 HNS 86
>gnl|CDD|212758 cd11824, SH3_PSTPIP1, Src homology 3 domain of
Proline-Serine-Threonine Phosphatase-Interacting Protein
1. PSTPIP1, also called CD2 Binding Protein 1 (CD2BP1),
is mainly expressed in hematopoietic cells. It is a
binding partner of the cell surface receptor CD2 and
PTP-PEST, a tyrosine phosphatase which functions in cell
motility and Rac1 regulation. It also plays a role in
the activation of the Wiskott-Aldrich syndrome protein
(WASP), which couples actin rearrangement and T cell
activation. Mutations in the gene encoding PSTPIP1 cause
the autoinflammatory disorder known as PAPA (pyogenic
sterile arthritis, pyoderma gangrenosum, and acne)
syndrome. PSTPIP1 contains an N-terminal F-BAR domain,
PEST motifs, and a C-terminal SH3 domain. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 46.6 bits (111), Expect = 4e-07
Identities = 17/51 (33%), Positives = 29/51 (56%), Gaps = 1/51 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
LY + A E +LS+ KG V++ ++ WW V ++NG G +P Y++
Sbjct: 3 SVLYDYTAQEDDELSISKGDVVAVIEKGEDGWWTV-ERNGQKGLVPGTYLE 52
Score = 38.9 bits (91), Expect = 2e-04
Identities = 14/42 (33%), Positives = 24/42 (57%), Gaps = 1/42 (2%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGIR 117
LY + A E +LS+ KG V++ ++ WW V ++NG +
Sbjct: 3 SVLYDYTAQEDDELSISKGDVVAVIEKGEDGWWTV-ERNGQK 43
>gnl|CDD|212938 cd12005, SH3_Lck, Src homology 3 domain of Lck Protein Tyrosine
Kinase. Lck is a member of the Src subfamily of
proteins, which are cytoplasmic (or non-receptor) PTKs.
Lck is expressed in T-cells and natural killer cells. It
plays a critical role in T-cell maturation, activation,
and T-cell receptor (TCR) signaling. Lck phosphorylates
ITAM (immunoreceptor tyr activation motif) sequences on
several subunits of TCRs, leading to the activation of
different second messenger cascades. Phosphorylated
ITAMs serve as binding sites for other signaling factor
such as Syk and ZAP-70, leading to their activation and
propagation of downstream events. In addition, Lck
regulates drug-induced apoptosis by interfering with the
mitochondrial death pathway. The apototic role of Lck is
independent of its primary function in T-cell signaling.
Src kinases contain an N-terminal SH4 domain with a
myristoylation site, followed by SH3 and SH2 domains, a
tyr kinase domain, and a regulatory C-terminal region
containing a conserved tyr. They are activated by
autophosphorylation at the tyr kinase domain, but are
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). The SH3
domain of Src kinases contributes to substrate
recruitment by binding adaptor proteins/substrates, and
regulation of kinase activity through an intramolecular
interaction. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 46.7 bits (111), Expect = 4e-07
Identities = 21/52 (40%), Positives = 31/52 (59%), Gaps = 2/52 (3%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKD-KNGSVGYIPSNYV 178
VVALY ++ GDL EKG + +++ + E WWK + G G+IP N+V
Sbjct: 2 VVALYSYEPSHDGDLGFEKGEKLRILEQSGE-WWKAQSLTTGQEGFIPFNFV 52
Score = 34.8 bits (80), Expect = 0.006
Identities = 15/37 (40%), Positives = 23/37 (62%), Gaps = 1/37 (2%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK 111
VVALY ++ GDL EKG + +++ + E WWK +
Sbjct: 2 VVALYSYEPSHDGDLGFEKGEKLRILEQSGE-WWKAQ 37
>gnl|CDD|212941 cd12008, SH3_Src, Src homology 3 domain of Src Protein Tyrosine
Kinase. Src (or c-Src) is a cytoplasmic (or
non-receptor) PTK and is the vertebrate homolog of the
oncogenic protein (v-Src) from Rous sarcoma virus.
Together with other Src subfamily proteins, it is
involved in signaling pathways that regulate cytokine
and growth factor responses, cytoskeleton dynamics, cell
proliferation, survival, and differentiation. Src also
play a role in regulating cell adhesion, invasion, and
motility in cancer cells, and tumor vasculature,
contributing to cancer progression and metastasis.
Elevated levels of Src kinase activity have been
reported in a variety of human cancers. Several
inhibitors of Src have been developed as anti-cancer
drugs. Src is also implicated in acute inflammatory
responses and osteoclast function. Src kinases contain
an N-terminal SH4 domain with a myristoylation site,
followed by SH3 and SH2 domains, a tyr kinase domain,
and a regulatory C-terminal region containing a
conserved tyr. They are activated by autophosphorylation
at the tyr kinase domain, but are negatively regulated
by phosphorylation at the C-terminal tyr by Csk
(C-terminal Src Kinase). The SH3 domain of Src kinases
contributes to substrate recruitment by binding adaptor
proteins/substrates, and regulation of kinase activity
through an intramolecular interaction. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 56
Score = 46.6 bits (110), Expect = 4e-07
Identities = 21/51 (41%), Positives = 31/51 (60%), Gaps = 1/51 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKD-KNGSVGYIPSNYV 178
VALY +++ DLS +KG +++++T+ WW G GYIPSNYV
Sbjct: 3 VALYDYESRTETDLSFKKGERLQIVNNTEGDWWLAHSLTTGQTGYIPSNYV 53
Score = 32.8 bits (74), Expect = 0.033
Identities = 12/33 (36%), Positives = 22/33 (66%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW 108
VALY +++ DLS +KG +++++T+ WW
Sbjct: 3 VALYDYESRTETDLSFKKGERLQIVNNTEGDWW 35
>gnl|CDD|133193 cd05062, PTKc_IGF-1R, Catalytic domain of the Protein Tyrosine
Kinase, Insulin-like Growth Factor-1 Receptor. Protein
Tyrosine Kinase (PTK) family; Insulin-like Growth
Factor-1 Receptor (IGF-1R); catalytic (c) domain. The
PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. IGF-1R is
a receptor tyr kinases (RTK) that is composed of two
alphabeta heterodimers. Binding of the ligand (IGF-1 or
IGF-2) to the extracellular alpha subunit activates the
intracellular tyr kinase domain of the transmembrane
beta subunit. Receptor activation leads to
autophosphorylation, which stimulates downstream kinase
activities and biological function. IGF-1R signaling is
important in the differentiation, growth, and survival
of normal cells. In cancer cells, where it is frequently
overexpressed, IGF-1R is implicated in proliferation,
the suppression of apoptosis, invasion, and metastasis.
IGF-1R is being developed as a therapeutic target in
cancer treatment.
Length = 277
Score = 50.8 bits (121), Expect = 5e-07
Identities = 19/46 (41%), Positives = 32/46 (69%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
F++ SDVW++GV++WE+ T + PY + N +V+ V G +L+KP
Sbjct: 198 FTTYSDVWSFGVVLWEIATLAEQPYQGMSNEQVLRFVMEGGLLDKP 243
Score = 41.9 bits (98), Expect = 5e-04
Identities = 26/89 (29%), Positives = 46/89 (51%), Gaps = 10/89 (11%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWRGSID------VAMM---KEGTMSED-DFIEEA 473
WE+ ++ + ELG G FG+V G +G + VA+ + +M E +F+ EA
Sbjct: 1 WEVAREKITMSRELGQGSFGMVYEGIAKGVVKDEPETRVAIKTVNEAASMRERIEFLNEA 60
Query: 474 KVMTRLQHQNLVQLYGVCSKHRPIYIVTD 502
VM ++V+L GV S+ +P ++ +
Sbjct: 61 SVMKEFNCHHVVRLLGVVSQGQPTLVIME 89
Score = 31.2 bits (70), Expect = 1.3
Identities = 15/54 (27%), Positives = 25/54 (46%), Gaps = 7/54 (12%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGL-------LLDMCIQVCKGMAYLERHNYIHRE 47
M G L +YLR + N ++ M ++ GMAYL + ++HR+
Sbjct: 91 MTRGDLKSYLRSLRPEMENNPVQAPPSLKKMIQMAGEIADGMAYLNANKFVHRD 144
>gnl|CDD|212740 cd11806, SH3_PRMT2, Src homology 3 domain of Protein arginine
N-methyltransferase 2. PRMT2, also called HRMT1L1,
belongs to the arginine methyltransferase protein
family. It functions as a coactivator to both estrogen
receptor alpha (ER-alpha) and androgen receptor (AR),
presumably through arginine methylation. The ER-alpha
transcription factor is involved in cell proliferation,
differentiation, morphogenesis, and apoptosis, and is
also implicated in the development and progression of
breast cancer. PRMT2 and its variants are upregulated in
breast cancer cells and may be involved in modulating
the ER-alpha signaling pathway during formation of
breast cancer. PRMT2 also plays a role in regulating the
function of E2F transcription factors, which are
critical cell cycle regulators, by binding to the
retinoblastoma gene product (RB). It contains an
N-terminal SH3 domain and an AdoMet binding domain. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 46.2 bits (110), Expect = 5e-07
Identities = 17/52 (32%), Positives = 26/52 (50%), Gaps = 1/52 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
VA+ F A + LS E G + V+ WW + NG GYIP++++
Sbjct: 1 EYVAIADFVATDDSQLSFESGDKLLVLRKPSVDWWWA-EHNGCCGYIPASHL 51
Score = 29.3 bits (66), Expect = 0.46
Identities = 11/35 (31%), Positives = 15/35 (42%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW 108
VA+ F A + LS E G + V+ WW
Sbjct: 1 EYVAIADFVATDDSQLSFESGDKLLVLRKPSVDWW 35
>gnl|CDD|212897 cd11964, SH3_STAM1, Src homology 3 domain of Signal Transducing
Adaptor Molecule 1. STAM1 is part of the endosomal
sorting complex required for transport (ESCRT-0) and is
involved in sorting ubiquitinated cargo proteins from
the endosome. It may also be involved in the regulation
of IL2 and GM-CSF mediated signaling, and has been
implicated in neural cell survival. STAMs were
discovered as proteins that are highly phosphorylated
following cytokine and growth factor stimulation. They
function in cytokine signaling and surface receptor
degradation, as well as regulate Golgi morphology. They
associate with many proteins including Jak2 and Jak3
tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor
proteins contain VHS (Vps27, Hrs, STAM homology),
ubiquitin interacting (UIM), and SH3 domains. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 46.5 bits (110), Expect = 5e-07
Identities = 19/53 (35%), Positives = 31/53 (58%), Gaps = 1/53 (1%)
Query: 126 KVVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
+ V A+Y F+A E +L+ + G ++DD+ +WWK + G G PSN+V
Sbjct: 1 RKVRAIYDFEAAEDNELTFKAGDIITILDDSDPNWWKGETPQG-TGLFPSNFV 52
Score = 38.4 bits (89), Expect = 3e-04
Identities = 14/44 (31%), Positives = 25/44 (56%)
Query: 73 KVVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGI 116
+ V A+Y F+A E +L+ + G ++DD+ +WWK + G
Sbjct: 1 RKVRAIYDFEAAEDNELTFKAGDIITILDDSDPNWWKGETPQGT 44
>gnl|CDD|212706 cd11772, SH3_OSTF1, Src Homology 3 domain of metazoan osteoclast
stimulating factor 1. OSTF1, also named OSF or SH3P2,
is a signaling protein containing SH3 and ankyrin-repeat
domains. It acts through a Src-related pathway to
enhance the formation of osteoclasts and bone
resorption. It also acts as a negative regulator of cell
motility. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 46.1 bits (110), Expect = 5e-07
Identities = 22/54 (40%), Positives = 30/54 (55%), Gaps = 1/54 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
V ALY ++A +LS E+G + D + +WWK G G IPSNYV+E
Sbjct: 1 VFRALYDYEAQHPDELSFEEGDLLYISDKSDPNWWKATCG-GKTGLIPSNYVEE 53
Score = 32.7 bits (75), Expect = 0.029
Identities = 15/45 (33%), Positives = 23/45 (51%), Gaps = 2/45 (4%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK--VKDKNGI 116
V ALY ++A +LS E+G + D + +WWK K G+
Sbjct: 1 VFRALYDYEAQHPDELSFEEGDLLYISDKSDPNWWKATCGGKTGL 45
>gnl|CDD|173653 cd05105, PTKc_PDGFR_alpha, Catalytic domain of the Protein Tyrosine
Kinase, Platelet Derived Growth Factor Receptor alpha.
Protein Tyrosine Kinase (PTK) family; Platelet Derived
Growth Factor Receptor (PDGFR) alpha; catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. PDGFR
alpha is a receptor tyr kinase (RTK) containing an
extracellular ligand-binding region with five
immunoglobulin-like domains, a transmembrane segment,
and an intracellular catalytic domain. The binding to
its ligands, the PDGFs, leads to receptor dimerization,
trans phosphorylation and activation, and intracellular
signaling. PDGFR alpha forms homodimers or heterodimers
with PDGFR beta, depending on the nature of the PDGF
ligand. PDGF-AA, PDGF-AB, and PDGF-CC induce PDGFR alpha
homodimerization. PDGFR signaling plays many roles in
normal embryonic development and adult physiology. PDGFR
alpha signaling is important in the formation of lung
alveoli, intestinal villi, mesenchymal dermis, and hair
follicles, as well as in the development of
oligodendrocytes, retinal astrocytes, neural crest
cells, and testicular cells. Aberrant PDGFR alpha
expression is associated with some human cancers.
Mutations in PDGFR alpha have been found within a subset
of gastrointestinal stromal tumors (GISTs). An active
fusion protein FIP1L1-PDGFR alpha, derived from
interstitial deletion, is associated with idiopathic
hypereosinophilic syndrome (HES) and chronic
eosinophilic leukemia (CEL).
Length = 400
Score = 51.6 bits (123), Expect = 6e-07
Identities = 34/91 (37%), Positives = 45/91 (49%), Gaps = 11/91 (12%)
Query: 423 KWEIDPAELMLLEELGSGQFGVVRRGKWRG--------SIDVAMMKEGTMSEDD--FIEE 472
+WE L+L LGSG FG V G G + V M+K S + + E
Sbjct: 31 RWEFPRDGLVLGRILGSGAFGKVVEGTAYGLSRSQPVMKVAVKMLKPTARSSEKQALMSE 90
Query: 473 AKVMTRL-QHQNLVQLYGVCSKHRPIYIVTD 502
K+MT L H N+V L G C+K PIYI+T+
Sbjct: 91 LKIMTHLGPHLNIVNLLGACTKSGPIYIITE 121
Score = 45.8 bits (108), Expect = 3e-05
Identities = 17/47 (36%), Positives = 33/47 (70%), Gaps = 1/47 (2%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPY-GRLKNTEVVDRVQRGIILEKP 254
+++ SDVW+YG+L+WE+F+ G PY G + ++ ++++ G + KP
Sbjct: 316 YTTLSDVWSYGILLWEIFSLGGTPYPGMIVDSTFYNKIKSGYRMAKP 362
>gnl|CDD|198226 cd10363, SH2_Src_HCK, Src homology 2 (SH2) domain found in HCK.
HCK is a member of the Src non-receptor type tyrosine
kinase family of proteins and is expressed in
hemopoietic cells. HCK is proposed to couple the Fc
receptor to the activation of the respiratory burst. It
may also play a role in neutrophil migration and in the
degranulation of neutrophils. It has two different
translational starts that have different subcellular
localization. HCK has been shown to interact with BCR
gene, ELMO1 Cbl gene, RAS p21 protein activator 1,
RASA3, Granulocyte colony-stimulating factor receptor,
ADAM15 and RAPGEF1. Like the other members of the Src
family the SH2 domain in addition to binding the target,
also plays an autoinhibitory role by binding to its
C-terminal tail. In general SH2 domains are involved in
signal transduction. HCK has a unique N-terminal domain,
an SH3 domain, an SH2 domain, a kinase domain and a
regulatory tail, as do the other members of the family.
They typically bind pTyr-containing ligands via two
surface pockets, a pTyr and hydrophobic binding pocket,
allowing proteins with SH2 domains to localize to
tyrosine phosphorylated sites.
Length = 104
Score = 47.7 bits (113), Expect = 6e-07
Identities = 26/77 (33%), Positives = 46/77 (59%), Gaps = 4/77 (5%)
Query: 336 GCFVVRNS-STKGLYTLSLYTKVPH--PHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVNY 392
G F++R+S +TKG Y+LS+ P VKHY I+ G F++S + ++ E+V++
Sbjct: 27 GSFMIRDSETTKGSYSLSVRDYDPQHGDTVKHYKIRTLDNGGFYISPRSTFSTLQELVDH 86
Query: 393 HRHNSGGLASRLKTSPC 409
++ + GL +L + PC
Sbjct: 87 YKKGNDGLCQKL-SVPC 102
Score = 40.7 bits (95), Expect = 1e-04
Identities = 26/79 (32%), Positives = 44/79 (55%), Gaps = 4/79 (5%)
Query: 257 WYVGDMSRQRAE-SILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPH--PHVKHYHIKQN 312
W+ +SR+ AE +L + G F++R+S +TKG Y+LS+ P VKHY I+
Sbjct: 5 WFFKGISRKDAERQLLAPGNMLGSFMIRDSETTKGSYSLSVRDYDPQHGDTVKHYKIRTL 64
Query: 313 SRGEFFLSEKHCCHSIPEV 331
G F++S + ++ E+
Sbjct: 65 DNGGFYISPRSTFSTLQEL 83
>gnl|CDD|212789 cd11855, SH3_Sho1p, Src homology 3 domain of High osmolarity
signaling protein Sho1p. Sho1p (or Sho1), also called
SSU81 (Suppressor of SUA8-1 mutation), is a yeast
membrane protein that regulates adaptation to high salt
conditions by activating the HOG (high-osmolarity
glycerol) pathway. High salt concentrations lead to the
localization to the membrane of the MAPKK Pbs2, which is
then activated by the MAPKK Ste11 and in turn, activates
the MAPK Hog1. Pbs2 is localized to the membrane though
the interaction of its PxxP motif with the SH3 domain of
Sho1p. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 45.9 bits (109), Expect = 7e-07
Identities = 23/51 (45%), Positives = 29/51 (56%), Gaps = 3/51 (5%)
Query: 130 ALYPFKA--IEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
ALYP+ A + +LS EKG EV D T WW+ + NG G PSNY+
Sbjct: 4 ALYPYDASPDDPNELSFEKGEILEVSD-TSGKWWQARKSNGETGICPSNYL 53
Score = 30.9 bits (70), Expect = 0.13
Identities = 18/41 (43%), Positives = 23/41 (56%), Gaps = 3/41 (7%)
Query: 77 ALYPFKA--IEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNG 115
ALYP+ A + +LS EKG EV D T WW+ + NG
Sbjct: 4 ALYPYDASPDDPNELSFEKGEILEVSD-TSGKWWQARKSNG 43
>gnl|CDD|212790 cd11856, SH3_p47phox_like, Src homology 3 domains of the p47phox
subunit of NADPH oxidase and similar domains. This
family is composed of the tandem SH3 domains of p47phox
subunit of NADPH oxidase and Nox Organizing protein 1
(NoxO1), the four SH3 domains of Tks4 (Tyr kinase
substrate with four SH3 domains), the five SH3 domains
of Tks5, the SH3 domain of obscurin, Myosin-I, and
similar domains. Most members of this group also contain
Phox homology (PX) domains, except for obscurin and
Myosin-I. p47phox and NoxO1 are regulators of the
phagocytic NADPH oxidase complex (also called Nox2 or
gp91phox) and nonphagocytic NADPH oxidase Nox1,
respectively. They play roles in the activation of their
respective NADPH oxidase, which catalyzes the transfer
of electrons from NADPH to molecular oxygen to form
superoxide. Tks proteins are Src substrates and
scaffolding proteins that play important roles in the
formation of podosomes and invadopodia, the dynamic
actin-rich structures that are related to cell migration
and cancer cell invasion. Obscurin is a giant muscle
protein that plays important roles in the organization
and assembly of the myofibril and the sarcoplasmic
reticulum. Type I myosins (Myosin-I) are actin-dependent
motors in endocytic actin structures and actin patches.
They play roles in membrane traffic in endocytic and
secretory pathways, cell motility, and mechanosensing.
Myosin-I contains an N-terminal actin-activated ATPase,
a phospholipid-binding TH1 (tail homology 1) domain, and
a C-terminal extension which includes an F-actin-binding
TH2 domain, an SH3 domain, and an acidic peptide that
participates in activating the Arp2/3complex. The SH3
domain of myosin-I is required for myosin-I-induced
actin polymerization. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 45.7 bits (109), Expect = 7e-07
Identities = 15/52 (28%), Positives = 31/52 (59%), Gaps = 1/52 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
VA+ ++A ++SL++G EV++ WW V+ K G++P++Y++
Sbjct: 3 VAIADYEAQGDDEISLQEGEVVEVLEKNDSGWWYVR-KGDKEGWVPASYLEP 53
Score = 34.9 bits (81), Expect = 0.005
Identities = 13/42 (30%), Positives = 23/42 (54%), Gaps = 2/42 (4%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW--KVKDKNG 115
VA+ ++A ++SL++G EV++ WW + DK G
Sbjct: 3 VAIADYEAQGDDEISLQEGEVVEVLEKNDSGWWYVRKGDKEG 44
>gnl|CDD|133230 cd05099, PTKc_FGFR4, Catalytic domain of the Protein Tyrosine
Kinase, Fibroblast Growth Factor Receptor 4. Protein
Tyrosine Kinase (PTK) family; Fibroblast Growth Factor
Receptor 4 (FGFR4); catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. FGFR4 is
part of the FGFR subfamily, which are receptor tyr
kinases (RTKs) containing an extracellular
ligand-binding region with three immunoglobulin-like
domains, a transmembrane segment, and an intracellular
catalytic domain. The binding of FGFRs to their ligands,
the FGFs, results in receptor dimerization and
activation, and intracellular signaling. The binding of
FGFs to FGFRs is promiscuous, in that a receptor may be
activated by several ligands and a ligand may bind to
more that one type of receptor. Unlike other FGFRs,
there is only one splice form of FGFR4. It binds FGF1,
FGF2, FGF6, FGF19, and FGF23. FGF19 is a selective
ligand for FGFR4. Although disruption of FGFR4 in mice
causes no obvious phenotype, in vivo inhibition of FGFR4
in cultured skeletal muscle cells resulted in an arrest
of muscle progenitor differentiation. FGF6 and FGFR4 are
uniquely expressed in myofibers and satellite cells.
FGF6/FGFR4 signaling appears to play a key role in the
regulation of muscle regeneration. A polymorphism in
FGFR4 is found in head and neck squamous cell carcinoma.
Length = 314
Score = 50.3 bits (120), Expect = 1e-06
Identities = 29/96 (30%), Positives = 52/96 (54%), Gaps = 13/96 (13%)
Query: 423 KWEIDPAELMLLEELGSGQFGVVRRGKWRG----------SIDVAMMKEGTMSED--DFI 470
KWE L+L + LG G FG V R + G ++ V M+K+ +D D I
Sbjct: 6 KWEFPRDRLVLGKPLGEGCFGQVVRAEAYGIDKSRPDQTVTVAVKMLKDNATDKDLADLI 65
Query: 471 EEAKVMTRL-QHQNLVQLYGVCSKHRPIYIVTDTSS 505
E ++M + +H+N++ L GVC++ P+Y++ + ++
Sbjct: 66 SEMELMKLIGKHKNIINLLGVCTQEGPLYVIVEYAA 101
Score = 46.9 bits (111), Expect = 1e-05
Identities = 18/46 (39%), Positives = 31/46 (67%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
++ +SDVW++G+LMWE+FT G PY + E+ ++ G ++KP
Sbjct: 213 YTHQSDVWSFGILMWEIFTLGGSPYPGIPVEELFKLLREGHRMDKP 258
>gnl|CDD|198218 cd10355, SH2_DAPP1_BAM32_like, Src homology 2 domain found in dual
adaptor for phosphotyrosine and 3-phosphoinositides (
DAPP1)/B lymphocyte adaptor molecule of 32 kDa
(Bam32)-like proteins. DAPP1/Bam32 contains a putative
myristoylation site at its N-terminus, followed by a SH2
domain, and a pleckstrin homology (PH) domain at its
C-terminus. DAPP1 could potentially be recruited to the
cell membrane by any of these domains. Its putative
myristoylation site could facilitate the interaction of
DAPP1 with the lipid bilayer. Its SH2 domain may also
interact with phosphotyrosine residues on
membrane-associated proteins such as activated tyrosine
kinase receptors. And finally its PH domain exhibits a
high-affinity interaction with the PtdIns(3,4,5)P(3)
PtdIns(3,4)P(2) second messengers produced at the cell
membrane following the activation of PI 3-kinases. DAPP1
is thought to interact with both tyrosine phosphorylated
proteins and 3-phosphoinositides and therefore may play
a role in regulating the location and/or activity of
such proteins(s) in response to agonists that elevate
PtdIns(3,4,5)P(3) and PtdIns(3,4)P(2). This protein is
likely to play an important role in triggering signal
transduction pathways that lie downstream from receptor
tyrosine kinases and PI 3-kinase. It is likely that
DAPP1 functions as an adaptor to recruit other proteins
to the plasma membrane in response to extracellular
signals. In general SH2 domains are involved in signal
transduction. They typically bind pTyr-containing
ligands via two surface pockets, a pTyr and hydrophobic
binding pocket, allowing proteins with SH2 domains to
localize to tyrosine phosphorylated sites.
Length = 92
Score = 46.7 bits (111), Expect = 1e-06
Identities = 20/61 (32%), Positives = 36/61 (59%), Gaps = 4/61 (6%)
Query: 256 AWYVGDMSRQRAESILKQEDKEGCFVVRNSSTK-GLYTLSLYTKVPHPHVKHYHIKQNSR 314
WY G+++R AE++L +G +++RNS+ GL++LS+ K VKH+H++
Sbjct: 7 GWYHGNLTRHAAEALLLSNGVDGSYLLRNSNEGTGLFSLSVRAK---DSVKHFHVEYTGY 63
Query: 315 G 315
Sbjct: 64 S 64
>gnl|CDD|133205 cd05074, PTKc_Tyro3, Catalytic domain of the Protein Tyrosine
Kinase, Tyro3. Protein Tyrosine Kinase (PTK) family;
Tyro3; catalytic (c) domain. The PTKc family is part of
a larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Tyro3 (or Sky) is a
member of the Axl subfamily, which is composed of
receptor tyr kinases (RTKs) containing an extracellular
ligand-binding region with two immunoglobulin-like
domains followed by two fibronectin type III repeats, a
transmembrane segment, and an intracellular catalytic
domain. Binding to their ligands, Gas6 and protein S,
leads to receptor dimerization, autophosphorylation,
activation, and intracellular signaling. Tyro3 is
predominantly expressed in the central nervous system
and the brain, and functions as a neurotrophic factor.
It is also expressed in osteoclasts and has a role in
bone resorption.
Length = 273
Score = 49.9 bits (119), Expect = 1e-06
Identities = 19/46 (41%), Positives = 34/46 (73%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
+++ SDVWA+GV MWE+ T G+ PY ++N+E+ + + +G L++P
Sbjct: 192 YTTHSDVWAFGVTMWEIMTRGQTPYAGVENSEIYNYLIKGNRLKQP 237
Score = 37.6 bits (87), Expect = 0.011
Identities = 17/50 (34%), Positives = 24/50 (48%), Gaps = 3/50 (6%)
Query: 1 MRHGSLLNYL---RRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M+HG L +L R E + L+ I + GM YL N+IHR+
Sbjct: 89 MKHGDLHTFLLMSRIGEEPFTLPLQTLVRFMIDIASGMEYLSSKNFIHRD 138
Score = 36.8 bits (85), Expect = 0.018
Identities = 24/69 (34%), Positives = 34/69 (49%), Gaps = 9/69 (13%)
Query: 437 LGSGQFGVVRRGKWR---GS---IDVAMMKEGTMSEDD---FIEEAKVMTRLQHQNLVQL 487
LG G+FG VR + + GS + V M+K S D F+ EA M H N+++L
Sbjct: 7 LGKGEFGSVREAQLKSEDGSFQKVAVKMLKADIFSSSDIEEFLREAACMKEFDHPNVIKL 66
Query: 488 YGVCSKHRP 496
GV + R
Sbjct: 67 IGVSLRSRA 75
>gnl|CDD|212754 cd11820, SH3_STAM, Src homology 3 domain of Signal Transducing
Adaptor Molecules. STAMs were discovered as proteins
that are highly phosphorylated following cytokine and
growth factor stimulation. They function in cytokine
signaling and surface receptor degradation, as well as
regulate Golgi morphology. They associate with many
proteins including Jak2 and Jak3 tyrosine kinases, Hrs,
AMSH, and UBPY. STAM adaptor proteins contain VHS
(Vps27, Hrs, STAM homology), ubiquitin interacting
(UIM), and SH3 domains. There are two vertebrate STAMs,
STAM1 and STAM2, which may be functionally redundant;
vertebrate STAMs contain ITAM motifs. They are part of
the endosomal sorting complex required for transport
(ESCRT-0). STAM2 deficiency in mice did not cause any
obvious abnormality, while STAM1 deficiency resulted in
growth retardation. Loss of both STAM1 and STAM2 in mice
proved lethal, indicating that STAMs are important for
embryonic development. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 45.1 bits (107), Expect = 1e-06
Identities = 20/52 (38%), Positives = 30/52 (57%), Gaps = 1/52 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
V ALY F+A E +L+ + G V+DD+ +WWK + G G P+N+V
Sbjct: 3 VRALYDFEAAEDNELTFKAGEIITVLDDSDPNWWKGSNHRGE-GLFPANFVT 53
Score = 37.1 bits (86), Expect = 9e-04
Identities = 16/42 (38%), Positives = 24/42 (57%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGI 116
V ALY F+A E +L+ + G V+DD+ +WWK + G
Sbjct: 3 VRALYDFEAAEDNELTFKAGEIITVLDDSDPNWWKGSNHRGE 44
>gnl|CDD|198198 cd09945, SH2_SHB_SHD_SHE_SHF_like, Src homology 2 domain found in
SH2 domain-containing adapter proteins B, D, E, and F
(SHB, SHD, SHE, SHF). SHB, SHD, SHE, and SHF are SH2
domain-containing proteins that play various roles
throughout the cell. SHB functions in generating
signaling compounds in response to tyrosine kinase
activation. SHB contains proline-rich motifs, a
phosphotyrosine binding (PTB) domain, tyrosine
phosphorylation sites, and a SH2 domain. SHB mediates
certain aspects of platelet-derived growth factor (PDGF)
receptor-, fibroblast growth factor (FGF) receptor-,
neural growth factor (NGF) receptor TRKA-, T cell
receptor-, interleukin-2 (IL-2) receptor- and focal
adhesion kinase- (FAK) signaling. SRC-like FYN-Related
Kinase FRK/RAK (also named BSK/IYK or GTK) and SHB
regulate apoptosis, proliferation and differentiation.
SHB promotes apoptosis and is also required for proper
mitogenicity, spreading and tubular morphogenesis in
endothelial cells. SHB also plays a role in preventing
early cavitation of embryoid bodies and reduces
differentiation to cells expressing albumin, amylase,
insulin and glucagon. SHB is a multifunctional protein
that has difference responses in different cells under
various conditions. SHE is expressed in heart, lung,
brain, and skeletal muscle, while expression of SHD is
restricted to the brain. SHF is mainly expressed in
skeletal muscle, brain, liver, prostate, testis, ovary,
small intestine, and colon. SHD may be a physiological
substrate of c-Abl and may function as an adapter
protein in the central nervous system. It is also
thought to be involved in apoptotic regulation. SHD
contains five YXXP motifs, a substrate sequence
preferred by Abl tyrosine kinases, in addition to a
poly-proline rich region and a C-terminal SH2 domain.
SHE contains two pTry protein binding domains, protein
interaction domain (PID) and a SH2 domain, followed by a
glycine-proline rich region, all of which are N-terminal
to the phosphotyrosine binding (PTB) domain. SHF
contains four putative tyrosine phosphorylation sites
and an SH2 domain. In general SH2 domains are involved
in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 98
Score = 46.7 bits (111), Expect = 1e-06
Identities = 30/77 (38%), Positives = 47/77 (61%), Gaps = 6/77 (7%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSRG 315
WY G ++R AES+L + KEG ++VRNS STK Y+LSL + H++ I++N G
Sbjct: 3 WYHGAITRIEAESLL-RPCKEGSYLVRNSESTKQDYSLSLKSAKGFMHMR---IQRNETG 58
Query: 316 EFFLSE-KHCCHSIPEV 331
++ L + +IPE+
Sbjct: 59 QYILGQFSRPFETIPEM 75
Score = 35.9 bits (83), Expect = 0.006
Identities = 23/65 (35%), Positives = 39/65 (60%), Gaps = 5/65 (7%)
Query: 334 KEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFLSE-KHCCHSIPEVVN 391
KEG ++VRNS STK Y+LSL + H++ I++N G++ L + +IPE++
Sbjct: 21 KEGSYLVRNSESTKQDYSLSLKSAKGFMHMR---IQRNETGQYILGQFSRPFETIPEMIR 77
Query: 392 YHRHN 396
++ N
Sbjct: 78 HYCLN 82
>gnl|CDD|133228 cd05097, PTKc_DDR_like, Catalytic domain of Discoidin Domain
Receptor-like Protein Tyrosine Kinases. Protein
Tyrosine Kinase (PTK) family; Discoidin Domain Receptor
(DDR)-like proteins; catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. DDR-like
proteins are members of the DDR subfamily, which are
receptor tyr kinases (RTKs) containing an extracellular
discoidin homology domain, a transmembrane segment, an
extended juxtamembrane region, and an intracellular
catalytic domain. The binding of the ligand, collagen,
to DDRs results in a slow but sustained receptor
activation. DDRs regulate cell adhesion, proliferation,
and extracellular matrix remodeling. They have been
linked to a variety of human cancers including breast,
colon, ovarian, brain, and lung. There is no evidence
showing that DDRs act as transforming oncogenes. They
are more likely to play a role in the regulation of
tumor growth and metastasis.
Length = 295
Score = 50.0 bits (119), Expect = 1e-06
Identities = 27/92 (29%), Positives = 47/92 (51%), Gaps = 19/92 (20%)
Query: 430 ELMLLEELGSGQFGVVRRGKWRGSID-----------------VAMMKEGTMS--EDDFI 470
+L L E+LG GQFG V + G + V M++ +DF+
Sbjct: 6 QLRLKEKLGEGQFGEVHLCEAEGLAEFLGEGAPEFDGQPVLVAVKMLRADVTKTARNDFL 65
Query: 471 EEAKVMTRLQHQNLVQLYGVCSKHRPIYIVTD 502
+E K+M+RL++ N+++L GVC P+ ++T+
Sbjct: 66 KEIKIMSRLKNPNIIRLLGVCVSDDPLCMITE 97
Score = 45.4 bits (107), Expect = 3e-05
Identities = 17/37 (45%), Positives = 28/37 (75%), Gaps = 1/37 (2%)
Query: 208 RFSSKSDVWAYGVLMWEVFT-CGKMPYGRLKNTEVVD 243
+F++ SDVWA+GV +WE+FT C + PY L + +V++
Sbjct: 207 KFTTASDVWAFGVTLWEMFTLCKEQPYSLLSDEQVIE 243
Score = 30.3 bits (68), Expect = 2.3
Identities = 11/24 (45%), Positives = 16/24 (66%)
Query: 24 LLDMCIQVCKGMAYLERHNYIHRE 47
LL M +Q+ GM YL N++HR+
Sbjct: 131 LLYMAVQIASGMKYLASLNFVHRD 154
>gnl|CDD|173647 cd05091, PTKc_Ror2, Catalytic domain of the Protein Tyrosine
Kinase, Receptor tyrosine kinase-like Orphan Receptor 2.
Protein Tyrosine Kinase (PTK) family; Receptor tyrosine
kinase-like Orphan Receptor 2 (Ror2); catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Ror
proteins are orphan receptor tyr kinases (RTKs)
containing an extracellular region with
immunoglobulin-like, cysteine-rich, and kringle domains,
a transmembrane segment, and an intracellular catalytic
domain. Ror RTKs are unrelated to the nuclear receptor
subfamily called retinoid-related orphan receptors
(RORs). RTKs are usually activated through ligand
binding, which causes dimerization and
autophosphorylation of the intracellular tyr kinase
catalytic domain. Ror2 plays important roles in skeletal
and heart formation. Ror2-deficient mice show widespread
bone abnormalities, ventricular defects in the heart,
and respiratory dysfunction. Mutations in human Ror2
result in two different bone development genetic
disorders, recessive Robinow syndrome and brachydactyly
type B. Ror2 is also implicated in neural development.
Length = 283
Score = 49.6 bits (118), Expect = 1e-06
Identities = 20/53 (37%), Positives = 34/53 (64%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
+ + Y +FS SD+W+YGV++WEVF+ G PY N +V++ ++ +L P
Sbjct: 196 EAIMYGKFSIDSDIWSYGVVLWEVFSYGLQPYCGYSNQDVIEMIRNRQVLPCP 248
Score = 45.4 bits (107), Expect = 3e-05
Identities = 30/92 (32%), Positives = 50/92 (54%), Gaps = 12/92 (13%)
Query: 425 EIDPAELMLLEELGSGQFGVVRRGKWRG--------SIDVAMMK---EGTMSEDDFIEEA 473
EI+ + + +EELG +FG V +G G ++ + +K EG + E+ F EA
Sbjct: 1 EINLSTVRFMEELGEDRFGKVYKGHLFGTAPGEQTQAVAIKTLKDKAEGPLREE-FKHEA 59
Query: 474 KVMTRLQHQNLVQLYGVCSKHRPIYIVTDTSS 505
+ +RLQH N+V L GV +K +P+ ++ S
Sbjct: 60 MMRSRLQHPNIVCLLGVVTKEQPLSMIFSYCS 91
>gnl|CDD|198183 cd09929, SH2_BLNK_SLP-76, Src homology 2 (SH2) domain found in
B-cell linker (BLNK) protein and SH2 domain-containing
leukocyte protein of 76 kDa (SLP-76). BLNK (also known
as SLP-65 or BASH) is an important adaptor protein
expressed in B-lineage cells. BLNK consists of a
N-terminal sterile alpha motif (SAM) domain and a
C-terminal SH2 domain. BLNK is a cytoplasmic protein,
but a part of it is bound to the plasma membrane through
an N-terminal leucine zipper motif and transiently bound
to a cytoplasmic domain of Iga through its C-terminal
SH2 domain upon B cell antigen receptor
(BCR)-stimulation. A non-ITAM phosphotyrosine in Iga is
necessary for the binding with the BLNK SH2 domain
and/or for normal BLNK function in signaling and B cell
activation. Upon phosphorylation BLNK binds Btk and
PLCgamma2 through their SH2 domains and mediates
PLCgamma2 activation by Btk. BLNK also binds other
signaling molecules such as Vav, Grb2, Syk, and HPK1.
BLNK has been shown to be necessary for BCR-mediated
Ca2+ mobilization, for the activation of
mitogen-activated protein kinases such as ERK, JNK, and
p38 in a chicken B cell line DT40, and for activation of
transcription factors such as NF-AT and NF-kappaB in
human or mouse B cells. BLNK is involved in B cell
development, B cell survival, activation, proliferation,
and T-independent immune responses. BLNK is structurally
homologous to SLP-76. SLP-76 and (linker for activation
of T cells) LAT are adaptor/linker proteins in T cell
antigen receptor activation and T cell development. BLNK
interacts with many downstream signaling proteins that
interact directly with both SLP-76 and LAT. New data
suggest functional complementation of SLP-76 and LAT in
T cell antigen receptor function with BLNK in BCR
function. In general SH2 domains are involved in signal
transduction. They typically bind pTyr-containing
ligands via two surface pockets, a pTyr and hydrophobic
binding pocket, allowing proteins with SH2 domains to
localize to tyrosine phosphorylated sites.
Length = 121
Score = 46.9 bits (112), Expect = 1e-06
Identities = 17/35 (48%), Positives = 26/35 (74%)
Query: 254 PKAWYVGDMSRQRAESILKQEDKEGCFVVRNSSTK 288
PK WY G++ R+ AE L++ +K+G F+VR+SS K
Sbjct: 10 PKEWYAGNIDRKEAEEALRRSNKDGTFLVRDSSGK 44
>gnl|CDD|198189 cd09935, SH2_ABL, Src homology 2 (SH2) domain found in Abelson
murine lymphosarcoma virus (ABL) proteins. ABL-family
proteins are highly conserved tyrosine kinases. Each ABL
protein contains an SH3-SH2-TK (Src homology 3-Src
homology 2-tyrosine kinase) domain cassette, which
confers autoregulated kinase activity and is common
among nonreceptor tyrosine kinases. Several types of
posttranslational modifications control ABL catalytic
activity, subcellular localization, and stability, with
consequences for both cytoplasmic and nuclear ABL
functions. Binding partners provide additional
regulation of ABL catalytic activity, substrate
specificity, and downstream signaling. By combining this
cassette with actin-binding and -bundling domain, ABL
proteins are capable of connecting phosphoregulation
with actin-filament reorganization. Vertebrate paralogs,
ABL1 and ABL2, have evolved to perform specialized
functions. ABL1 includes nuclear localization signals
and a DNA binding domain which is used to mediate DNA
damage-repair functions, while ABL2 has additional
binding capacity for actin and for microtubules to
enhance its cytoskeletal remodeling functions. SH2 is
involved in several autoinhibitory mechanism that
constrain the enzymatic activity of the ABL-family
kinases. In one mechanism SH2 and SH3 cradle the kinase
domain while a cap sequence stabilizes the inactive
conformation resulting in a locked inactive state.
Another involves phosphatidylinositol 4,5-bisphosphate
(PIP2) which binds the SH2 domain through residues
normally required for phosphotyrosine binding in the
linker segment between the SH2 and kinase domains. The
SH2 domain contributes to ABL catalytic activity and
target site specificity. It is thought that the ABL
catalytic site and SH2 pocket have coevolved to
recognize the same sequences. Recent work now supports a
hierarchical processivity model in which the substrate
target site most compatible with ABL kinase domain
preferences is phosphorylated with greatest efficiency.
If this site is compatible with the ABL SH2 domain
specificity, it will then reposition and dock in the SH2
pocket. This mechanism also explains how ABL kinases
phosphorylates poor targets on the same substrate if
they are properly positioned and how relatively poor
substrate proteins might be recruited to ABL through a
complex with strong substrates that can also dock with
the SH2 pocket. In general SH2 domains are involved in
signal transduction. They typically bind pTyr-containing
ligands via two surface pockets, a pTyr and hydrophobic
binding pocket, allowing proteins with SH2 domains to
localize to tyrosine phosphorylated sites.
Length = 94
Score = 46.2 bits (110), Expect = 1e-06
Identities = 24/71 (33%), Positives = 45/71 (63%), Gaps = 4/71 (5%)
Query: 336 GCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVNYHR 394
G F+VR S S+ G Y++SL V HY I ++S G+ +++++H +++ E+V++H
Sbjct: 25 GSFLVRESESSPGQYSISLRY---DGRVYHYRISEDSDGKVYVTQEHRFNTLAELVHHHS 81
Query: 395 HNSGGLASRLK 405
N+ GL + L+
Sbjct: 82 KNADGLITTLR 92
Score = 40.4 bits (95), Expect = 2e-04
Identities = 25/68 (36%), Positives = 39/68 (57%), Gaps = 5/68 (7%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSRG 315
WY G +SR AE +L G F+VR S S+ G Y++SL V HY I ++S G
Sbjct: 5 WYHGPISRNAAEYLLSS-GINGSFLVRESESSPGQYSISLRY---DGRVYHYRISEDSDG 60
Query: 316 EFFLSEKH 323
+ +++++H
Sbjct: 61 KVYVTQEH 68
>gnl|CDD|198186 cd09932, SH2_C-SH2_PLC_gamma_like, C-terminal Src homology 2
(C-SH2) domain in Phospholipase C gamma. Phospholipase
C gamma is a signaling molecule that is recruited to the
C-terminal tail of the receptor upon autophosphorylation
of a highly conserved tyrosine. PLCgamma is composed of
a Pleckstrin homology (PH) domain followed by an
elongation factor (EF) domain, 2 catalytic regions of
PLC domains that flank 2 tandem SH2 domains (N-SH2,
C-SH2), and ending with a SH3 domain and C2 domain.
N-SH2 SH2 domain-mediated interactions represent a
crucial step in transmembrane signaling by receptor
tyrosine kinases. SH2 domains recognize phosphotyrosine
(pY) in the context of particular sequence motifs in
receptor phosphorylation sites. Both N-SH2 and C-SH2
have a very similar binding affinity to pY. But in
growth factor stimulated cells these domains bind to
different target proteins. N-SH2 binds to pY containing
sites in the C-terminal tails of tyrosine kinases and
other receptors. Recently it has been shown that this
interaction is mediated by phosphorylation-independent
interactions between a secondary binding site found
exclusively on the N-SH2 domain and a region of the
FGFR1 tyrosine kinase domain. This secondary site on the
SH2 cooperates with the canonical pY site to regulate
selectivity in mediating a specific cellular process.
C-SH2 binds to an intramolecular site on PLCgamma itself
which allows it to hydrolyze
phosphatidylinositol-4,5-bisphosphate into
diacylglycerol and inositol triphosphate. These then
activate protein kinase C and release calcium. In
general SH2 domains are involved in signal transduction.
They typically bind pTyr-containing ligands via two
surface pockets, a pTyr and hydrophobic binding pocket,
allowing proteins with SH2 domains to localize to
tyrosine phosphorylated sites.
Length = 104
Score = 46.5 bits (111), Expect = 1e-06
Identities = 19/61 (31%), Positives = 33/61 (54%), Gaps = 4/61 (6%)
Query: 255 KAWYVGDMSRQRAESILKQEDKEGCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHIKQNS 313
K W+ +++R++AE +L + ++G F+VR S T + +S +KH IKQ
Sbjct: 4 KEWFHANLTREQAEEMLMRVPRDGAFLVRPSETDPNSFAISFRA---EGKIKHCRIKQEG 60
Query: 314 R 314
R
Sbjct: 61 R 61
Score = 30.7 bits (70), Expect = 0.44
Identities = 18/64 (28%), Positives = 30/64 (46%), Gaps = 6/64 (9%)
Query: 334 KEGCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVNY 392
++G F+VR S T + +S +KH IKQ R F+ S+ E+V+Y
Sbjct: 25 RDGAFLVRPSETDPNSFAISFRA---EGKIKHCRIKQEGR--LFVIGTSQFESLVELVSY 79
Query: 393 HRHN 396
+ +
Sbjct: 80 YEKH 83
>gnl|CDD|212929 cd11996, SH3_Intersectin2_5, Fifth Src homology 3 domain (or SH3E)
of Intersectin-2. Intersectin-2 (ITSN2) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN2 also functions as a specific GEF for Cdc42
activation in epithelial morphogenesis, and is required
in mitotic spindle orientation. It exists in
alternatively spliced short and long isoforms. The short
isoform contains two Eps15 homology domains (EH1 and
EH2), a coiled-coil region and five SH3 domains
(SH3A-E), while the long isoform, in addition, contains
RhoGEF (also called Dbl-homologous or DH), Pleckstrin
homology (PH) and C2 domains. The fifth SH3 domain (or
SH3E) of ITSN2 is expected to bind protein partners,
similar to ITSN1 which has been shown to bind many
protein partners including SGIP1, Sos1, dynamin1/2,
CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among
others. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 44.2 bits (104), Expect = 2e-06
Identities = 20/52 (38%), Positives = 28/52 (53%), Gaps = 1/52 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
V+A+Y + A +LS KG V++ WW+ + NG G PSNYVK
Sbjct: 3 VIAMYDYTANNEDELSFSKGQLINVLNKDDPDWWQ-GEINGVTGLFPSNYVK 53
Score = 29.6 bits (66), Expect = 0.46
Identities = 11/35 (31%), Positives = 18/35 (51%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK 109
V+A+Y + A +LS KG V++ WW+
Sbjct: 3 VIAMYDYTANNEDELSFSKGQLINVLNKDDPDWWQ 37
>gnl|CDD|133237 cd05106, PTKc_CSF-1R, Catalytic domain of the Protein Tyrosine
Kinase, Colony-Stimulating Factor-1 Receptor. Protein
Tyrosine Kinase (PTK) family; Colony-Stimulating
Factor-1 Receptor (CSF-1R); catalytic (c) domain. The
PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. CSF-1R,
also called c-Fms, is a member of the Platelet Derived
Growth Factor Receptor (PDGFR) subfamily of proteins,
which are receptor tyr kinases (RTKs) containing an
extracellular ligand-binding region with five
immunoglobulin-like domains, a transmembrane segment,
and an intracellular catalytic domain. The binding of
CSF-1R to its ligand, CSF-1, leads to receptor
dimerization, trans phosphorylation and activation, and
intracellular signaling. CSF-1R signaling is critical in
the regulation of macrophages and osteoclasts. It leads
to increases in gene transcription and protein
translation, and induces cytoskeletal remodeling. CSF-1R
signaling leads to a variety of cellular responses
including survival, proliferation, and differentiation
of target cells. It plays an important role in innate
immunity, tissue development and function, and the
pathogenesis of some diseases including atherosclerosis
and cancer. CSF-1R signaling is also implicated in
mammary gland development during pregnancy and
lactation. Aberrant CSF-1/CSF-1R expression correlates
with tumor cell invasiveness, poor clinical prognosis,
and bone metastasis in breast cancer. Although the
structure of the human CSF-1R catalytic domain is known,
it is excluded from this specific alignment model
because it contains a deletion in its sequence.
Length = 374
Score = 49.5 bits (118), Expect = 2e-06
Identities = 21/47 (44%), Positives = 34/47 (72%), Gaps = 1/47 (2%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPY-GRLKNTEVVDRVQRGIILEKP 254
++ +SDVW+YG+L+WE+F+ GK PY G L N++ V+RG + +P
Sbjct: 291 YTVQSDVWSYGILLWEIFSLGKSPYPGILVNSKFYKMVKRGYQMSRP 337
Score = 45.6 bits (108), Expect = 4e-05
Identities = 28/93 (30%), Positives = 48/93 (51%), Gaps = 11/93 (11%)
Query: 421 HDKWEIDPAELMLLEELGSGQFGVVRR------GKWRGSIDVA--MMKEGTMSEDD--FI 470
++KWE L + LG+G FG V GK + VA M+K +++ +
Sbjct: 30 NEKWEFPRDNLQFGKTLGAGAFGKVVEATAFGLGKEDNVLRVAVKMLKASAHTDEREALM 89
Query: 471 EEAKVMTRL-QHQNLVQLYGVCSKHRPIYIVTD 502
E K+++ L QH+N+V L G C+ P+ ++T+
Sbjct: 90 SELKILSHLGQHKNIVNLLGACTHGGPVLVITE 122
>gnl|CDD|212705 cd11771, SH3_Pex13p_fungal, Src Homology 3 domain of fungal
peroxisomal membrane protein Pex13p. Pex13p, located in
the peroxisomal membrane, contains two transmembrane
regions and a C-terminal SH3 domain. It binds to the
peroxisomal targeting type I (PTS1) receptor Pex5p and
the docking factor Pex14p through its SH3 domain. It is
essential for both PTS1 and PTS2 protein import pathways
into the peroxisomal matrix. Pex13p binds Pex14p, which
contains a PxxP motif, in a classical fashion to the
proline-rich ligand binding site of its SH3 domain. It
binds the WxxxF/Y motif of Pex5p in a novel site that
does not compete with Pex14p binding. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 60
Score = 44.2 bits (105), Expect = 3e-06
Identities = 21/55 (38%), Positives = 29/55 (52%), Gaps = 6/55 (10%)
Query: 130 ALYPFK-AIEGGDLSLEKGAEYEVMD--DTQEH---WWKVKDKNGSVGYIPSNYV 178
ALY F +LSL+KG V+ D WWK + ++G +G+ PSNYV
Sbjct: 4 ALYDFTPENPEMELSLKKGDIVAVLSKTDPLGRDSEWWKGRTRDGRIGWFPSNYV 58
>gnl|CDD|212738 cd11804, SH3_GRB2_like_N, N-terminal Src homology 3 domain of
Growth factor receptor-bound protein 2 (GRB2) and
related proteins. This family includes the adaptor
protein GRB2 and related proteins including Drosophila
melanogaster Downstream of receptor kinase (DRK),
Caenorhabditis elegans Sex muscle abnormal protein 5
(Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and
similar proteins. Family members contain an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. GRB2/Sem-5/DRK is a critical signaling molecule
that regulates the Ras pathway by linking tyrosine
kinases to the Ras guanine nucleotide releasing protein
Sos (son of sevenless), which converts Ras to the active
GTP-bound state. GRAP2 plays an important role in T cell
receptor (TCR) signaling by promoting the formation of
the SLP-76:LAT complex, which couples the TCR to the Ras
pathway. GRAP acts as a negative regulator of T cell
receptor (TCR)-induced lymphocyte proliferation by
downregulating the signaling to the Ras/ERK pathway. The
N-terminal SH3 domain of GRB2 binds to Sos and
Sos-derived proline-rich peptides. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 52
Score = 44.3 bits (105), Expect = 3e-06
Identities = 18/51 (35%), Positives = 31/51 (60%), Gaps = 2/51 (3%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMD-DTQEHWWKVKDKNGSVGYIPSNYV 178
VA + FKA +LS +KG+ +V++ + +W+K + +G G IP NY+
Sbjct: 3 VAKHDFKATAEDELSFKKGSILKVLNMEDDPNWYKA-ELDGKEGLIPKNYI 52
Score = 28.5 bits (64), Expect = 0.89
Identities = 12/35 (34%), Positives = 22/35 (62%), Gaps = 1/35 (2%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMD-DTQEHWWK 109
VA + FKA +LS +KG+ +V++ + +W+K
Sbjct: 3 VAKHDFKATAEDELSFKKGSILKVLNMEDDPNWYK 37
>gnl|CDD|212807 cd11874, SH3_CD2AP-like_2, Second Src Homology 3 domain (SH3B) of
CD2-associated protein and similar proteins. This
subfamily is composed of the second SH3 domain (SH3B) of
CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and
similar domains. CD2AP and CIN85 are adaptor proteins
that bind to protein partners and assemble complexes
that have been implicated in T cell activation, kidney
function, and apoptosis of neuronal cells. They also
associate with endocytic proteins, actin cytoskeleton
components, and other adaptor proteins involved in
receptor tyrosine kinase (RTK) signaling. CD2AP and the
main isoform of CIN85 contain three SH3 domains, a
proline-rich region, and a C-terminal coiled-coil
domain. All of these domains enable CD2AP and CIN85 to
bind various protein partners and assemble complexes
that have been implicated in many different functions.
SH3B of both proteins have been shown to bind to Cbl. In
the case of CD2AP, its SH3B binds to Cbl at a site
distinct from the c-Cbl/SH3A binding site. The CIN85
SH3B also binds ubiquitin. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 44.2 bits (105), Expect = 3e-06
Identities = 20/51 (39%), Positives = 29/51 (56%), Gaps = 1/51 (1%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
L+ + +L L+ G EV+ + +E WW+ K NG VG PSN+VKE
Sbjct: 4 VLFSYTPQNEDELELKVGDTIEVLGEVEEGWWEGK-LNGKVGVFPSNFVKE 53
Score = 28.1 bits (63), Expect = 1.6
Identities = 12/39 (30%), Positives = 20/39 (51%), Gaps = 1/39 (2%)
Query: 77 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNG 115
L+ + +L L+ G EV+ + +E WW+ K NG
Sbjct: 4 VLFSYTPQNEDELELKVGDTIEVLGEVEEGWWEGK-LNG 41
>gnl|CDD|198282 cd10419, SH2_Src_Fyn_isoform_b_like, Src homology 2 (SH2) domain
found in Fyn isoform b like proteins. Fyn is a member
of the Src non-receptor type tyrosine kinase family of
proteins. This cd contains the SH2 domain found in Fyn
isoform b type proteins. Fyn is involved in the control
of cell growth and is required in the following
pathways: T and B cell receptor signaling,
integrin-mediated signaling, growth factor and cytokine
receptor signaling, platelet activation, ion channel
function, cell adhesion, axon guidance, fertilization,
entry into mitosis, and differentiation of natural
killer cells, oligodendrocytes and keratinocytes. The
protein associates with the p85 subunit of
phosphatidylinositol 3-kinase and interacts with the
Fyn-binding protein. Alternatively spliced transcript
variants encoding distinct isoforms exist. Fyn is
primarily localized to the cytoplasmic leaflet of the
plasma membrane. Tyrosine phosphorylation of target
proteins by Fyn serves to either regulate target protein
activity, and/or to generate a binding site on the
target protein that recruits other signaling molecules.
FYN has been shown to interact with a number of proteins
including: BCAR1, Cbl, Janus kinase, nephrin, Sky,
tyrosine kinase, Wiskott-Aldrich syndrome protein, and
Zap-70. Fyn has a unique N-terminal domain, an SH3
domain, an SH2 domain, a kinase domain and a regulatory
tail, as do the other members of the family. In general
SH2 domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 101
Score = 45.4 bits (107), Expect = 3e-06
Identities = 24/72 (33%), Positives = 43/72 (59%), Gaps = 4/72 (5%)
Query: 255 KAWYVGDMSRQRAE-SILKQEDKEGCFVVRNS-STKGLYTLSL--YTKVPHPHVKHYHIK 310
+ WY G + R+ AE +L + G F++R S +TKG Y+LS+ + + HVKHY I+
Sbjct: 3 EEWYFGKLGRKDAERQLLSFGNPRGTFLIRESETTKGAYSLSIRDWDDMKGDHVKHYKIR 62
Query: 311 QNSRGEFFLSEK 322
+ G ++++ +
Sbjct: 63 KLDNGGYYITTR 74
Score = 39.3 bits (91), Expect = 4e-04
Identities = 21/75 (28%), Positives = 43/75 (57%), Gaps = 3/75 (4%)
Query: 333 DKEGCFVVRNS-STKGLYTLSL--YTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEV 389
+ G F++R S +TKG Y+LS+ + + HVKHY I++ G ++++ + ++ ++
Sbjct: 24 NPRGTFLIRESETTKGAYSLSIRDWDDMKGDHVKHYKIRKLDNGGYYITTRAQFETLQQL 83
Query: 390 VNYHRHNSGGLASRL 404
V ++ + GL L
Sbjct: 84 VQHYSEKADGLCFNL 98
>gnl|CDD|212832 cd11899, SH3_Nck2_1, First Src Homology 3 domain of Nck2 adaptor
protein. Nck2 (also called Nckbeta or Growth factor
receptor-bound protein 4, Grb4) plays a crucial role in
connecting signaling pathways of tyrosine kinase
receptors and important effectors in actin dynamics and
cytoskeletal remodeling. It binds neuronal signaling
proteins such as ephrinB and Disabled-1 (Dab-1)
exclusively. Nck adaptor proteins regulate actin
cytoskeleton dynamics by linking proline-rich effector
molecules to protein tyrosine kinases and phosphorylated
signaling intermediates. They contain three SH3 domains
and a C-terminal SH2 domain. They function downstream of
the PDGFbeta receptor and are involved in Rho GTPase
signaling and actin dynamics. Vertebrates contain two
Nck adaptor proteins: Nck1 (also called Nckalpha) and
Nck2, which show partly overlapping functions but also
bind distinct targets. The first SH3 domain of Nck2
binds the PxxDY sequence in the CD3e cytoplasmic tail;
this binding inhibits phosphorylation by Src kinases,
resulting in the downregulation of TCR surface
expression. SH3 domains are protein interaction domains
that usually bind to proline-rich ligands with moderate
affinity and selectivity, preferentially a PxxP motif.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 58
Score = 44.0 bits (103), Expect = 3e-06
Identities = 18/55 (32%), Positives = 35/55 (63%), Gaps = 1/55 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKEK 181
+V+A + + A + +L ++K ++DD++ WW+V++ GY+PSNYV+ K
Sbjct: 5 IVIAKWDYTAQQDQELDIKKNERLWLLDDSKT-WWRVRNAANRTGYVPSNYVERK 58
>gnl|CDD|198229 cd10366, SH2_Src_Yes, Src homology 2 (SH2) domain found in Yes.
Yes is a member of the Src non-receptor type tyrosine
kinase family of proteins. Yes is the cellular homolog
of the Yamaguchi sarcoma virus oncogene. In humans it is
encoded by the YES1 gene which maps to chromosome 18 and
is in close proximity to thymidylate synthase. A
corresponding Yes pseudogene has been found on
chromosome 22. YES1 has been shown to interact with
Janus kinase 2, CTNND1,RPL10, and Occludin. Yes1 has a
unique N-terminal domain, an SH3 domain, an SH2 domain,
a kinase domain and a regulatory tail, as do the other
members of the family. In general SH2 domains are
involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 101
Score = 45.4 bits (107), Expect = 3e-06
Identities = 26/74 (35%), Positives = 46/74 (62%), Gaps = 4/74 (5%)
Query: 253 KPKAWYVGDMSRQRAESILKQE-DKEGCFVVRNS-STKGLYTLSL--YTKVPHPHVKHYH 308
+ + WY G M R+ AE +L ++ G F+VR S +TKG Y+LS+ + +V +VKHY
Sbjct: 1 QAEEWYFGKMGRKDAERLLLNPGNQRGIFLVRESETTKGAYSLSIRDWDEVRGDNVKHYK 60
Query: 309 IKQNSRGEFFLSEK 322
I++ G ++++ +
Sbjct: 61 IRKLDNGGYYITTR 74
Score = 42.3 bits (99), Expect = 4e-05
Identities = 23/77 (29%), Positives = 48/77 (62%), Gaps = 3/77 (3%)
Query: 333 DKEGCFVVRNS-STKGLYTLSL--YTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEV 389
++ G F+VR S +TKG Y+LS+ + +V +VKHY I++ G ++++ + ++ ++
Sbjct: 24 NQRGIFLVRESETTKGAYSLSIRDWDEVRGDNVKHYKIRKLDNGGYYITTRAQFDTLQKL 83
Query: 390 VNYHRHNSGGLASRLKT 406
V ++ ++ GL +L T
Sbjct: 84 VKHYTEHADGLCHKLTT 100
>gnl|CDD|133240 cd05109, PTKc_HER2, Catalytic domain of the Protein Tyrosine
Kinase, HER2. Protein Tyrosine Kinase (PTK) family;
HER2 (ErbB2, HER2/neu); catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. HER2 is a
member of the EGFR (HER, ErbB) subfamily of proteins,
which are receptor tyr kinases (RTKs) containing an
extracellular EGF-related ligand-binding region, a
transmembrane helix, and a cytoplasmic region with a tyr
kinase domain and a regulatory C-terminal tail. Unlike
other tyr kinases, phosphorylation of the activation
loop of EGFR proteins is not critical to their
activation. Instead, they are activated by
ligand-induced dimerization, leading to the
phosphorylation of tyr residues in the C-terminal tail,
which serve as binding sites for downstream signaling
molecules. HER2 does not bind to any known EGFR
subfamily ligands, but contributes to the kinase
activity of all possible heterodimers. It acts as the
preferred partner with other ligand-bound EGFR proteins
and functions as a signal amplifier, with the HER2-HER3
heterodimer being the most potent pair in mitogenic
signaling. HER2 plays an important role in cell
development, proliferation, survival and motility.
Overexpression of HER2 results in its activation and
downstream signaling, even in the absence of ligand.
HER2 overexpression, mainly due to gene amplification,
has been shown in a variety of human cancers. Its role
in breast cancer is especially well-documented. HER2 is
up-regulated in about 25% of breast tumors and is
associated with increases in tumor aggressiveness,
recurrence and mortality. HER2 is a target for
monoclonal antibodies and small molecule inhibitors,
which are being developed as treatments for cancer. The
first humanized antibody approved for clinical use is
Trastuzumab (Herceptin), which is being used in
combination with other therapies to improve the survival
rates of patients with HER2-overexpressing breast
cancer.
Length = 279
Score = 48.1 bits (114), Expect = 4e-06
Identities = 20/47 (42%), Positives = 31/47 (65%)
Query: 208 RFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
RF+ +SDVW+YGV +WE+ T G PY + E+ D +++G L +P
Sbjct: 187 RFTHQSDVWSYGVTVWELMTFGAKPYDGIPAREIPDLLEKGERLPQP 233
Score = 45.4 bits (107), Expect = 3e-05
Identities = 19/47 (40%), Positives = 32/47 (68%), Gaps = 2/47 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M +G LL+Y+R +++ +G LL+ C+Q+ KGM+YLE +HR+
Sbjct: 90 MPYGCLLDYVRENKDRIGSQD--LLNWCVQIAKGMSYLEEVRLVHRD 134
Score = 33.1 bits (75), Expect = 0.28
Identities = 20/71 (28%), Positives = 37/71 (52%), Gaps = 9/71 (12%)
Query: 430 ELMLLEELGSGQFGVVRRGKW-------RGSIDVAMMKEGT--MSEDDFIEEAKVMTRLQ 480
EL ++ LGSG FG V +G W + + + +++E T + + ++EA VM +
Sbjct: 8 ELKKVKVLGSGAFGTVYKGIWIPDGENVKIPVAIKVLRENTSPKANKEILDEAYVMAGVG 67
Query: 481 HQNLVQLYGVC 491
+ +L G+C
Sbjct: 68 SPYVCRLLGIC 78
>gnl|CDD|198231 cd10368, SH2_Src_Fyn, Src homology 2 (SH2) domain found in Fyn.
Fyn is a member of the Src non-receptor type tyrosine
kinase family of proteins. Fyn is involved in the
control of cell growth and is required in the following
pathways: T and B cell receptor signaling,
integrin-mediated signaling, growth factor and cytokine
receptor signaling, platelet activation, ion channel
function, cell adhesion, axon guidance, fertilization,
entry into mitosis, and differentiation of natural
killer cells, oligodendrocytes and keratinocytes. The
protein associates with the p85 subunit of
phosphatidylinositol 3-kinase and interacts with the
Fyn-binding protein. Alternatively spliced transcript
variants encoding distinct isoforms exist. Fyn is
primarily localized to the cytoplasmic leaflet of the
plasma membrane. Tyrosine phosphorylation of target
proteins by Fyn serves to either regulate target protein
activity, and/or to generate a binding site on the
target protein that recruits other signaling molecules.
FYN has been shown to interact with a number of proteins
including: BCAR1, Cbl, Janus kinase, nephrin, Sky,
tyrosine kinase, Wiskott-Aldrich syndrome protein, and
Zap-70. Fyn has a unique N-terminal domain, an SH3
domain, an SH2 domain, a kinase domain and a regulatory
tail, as do the other members of the family. In general
SH2 domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 101
Score = 45.0 bits (106), Expect = 5e-06
Identities = 24/72 (33%), Positives = 43/72 (59%), Gaps = 4/72 (5%)
Query: 255 KAWYVGDMSRQRAE-SILKQEDKEGCFVVRNS-STKGLYTLSL--YTKVPHPHVKHYHIK 310
+ WY G + R+ AE +L + G F++R S +TKG Y+LS+ + + HVKHY I+
Sbjct: 3 EEWYFGKLGRKDAERQLLSFGNPRGTFLIRESETTKGAYSLSIRDWDDMKGDHVKHYKIR 62
Query: 311 QNSRGEFFLSEK 322
+ G ++++ +
Sbjct: 63 KLDNGGYYITTR 74
Score = 40.0 bits (93), Expect = 3e-04
Identities = 21/72 (29%), Positives = 42/72 (58%), Gaps = 3/72 (4%)
Query: 336 GCFVVRNS-STKGLYTLSL--YTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVNY 392
G F++R S +TKG Y+LS+ + + HVKHY I++ G ++++ + ++ ++V +
Sbjct: 27 GTFLIRESETTKGAYSLSIRDWDDMKGDHVKHYKIRKLDNGGYYITTRAQFETLQQLVQH 86
Query: 393 HRHNSGGLASRL 404
+ + GL L
Sbjct: 87 YSETANGLCKVL 98
>gnl|CDD|198281 cd10418, SH2_Src_Fyn_isoform_a_like, Src homology 2 (SH2) domain
found in Fyn isoform a like proteins. Fyn is a member
of the Src non-receptor type tyrosine kinase family of
proteins. This cd contains the SH2 domain found in Fyn
isoform a type proteins. Fyn is involved in the control
of cell growth and is required in the following
pathways: T and B cell receptor signaling,
integrin-mediated signaling, growth factor and cytokine
receptor signaling, platelet activation, ion channel
function, cell adhesion, axon guidance, fertilization,
entry into mitosis, and differentiation of natural
killer cells, oligodendrocytes and keratinocytes. The
protein associates with the p85 subunit of
phosphatidylinositol 3-kinase and interacts with the
Fyn-binding protein. Alternatively spliced transcript
variants encoding distinct isoforms exist. Fyn is
primarily localized to the cytoplasmic leaflet of the
plasma membrane. Tyrosine phosphorylation of target
proteins by Fyn serves to either regulate target protein
activity, and/or to generate a binding site on the
target protein that recruits other signaling molecules.
FYN has been shown to interact with a number of proteins
including: BCAR1, Cbl, Janus kinase, nephrin, Sky,
tyrosine kinase, Wiskott-Aldrich syndrome protein, and
Zap-70. Fyn has a unique N-terminal domain, an SH3
domain, an SH2 domain, a kinase domain and a regulatory
tail, as do the other members of the family. In general
SH2 domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 101
Score = 45.0 bits (106), Expect = 5e-06
Identities = 24/72 (33%), Positives = 43/72 (59%), Gaps = 4/72 (5%)
Query: 255 KAWYVGDMSRQRAE-SILKQEDKEGCFVVRNS-STKGLYTLSL--YTKVPHPHVKHYHIK 310
+ WY G + R+ AE +L + G F++R S +TKG Y+LS+ + + HVKHY I+
Sbjct: 3 EEWYFGKLGRKDAERQLLSFGNPRGTFLIRESETTKGAYSLSIRDWDDMKGDHVKHYKIR 62
Query: 311 QNSRGEFFLSEK 322
+ G ++++ +
Sbjct: 63 KLDNGGYYITTR 74
Score = 41.9 bits (98), Expect = 5e-05
Identities = 22/72 (30%), Positives = 43/72 (59%), Gaps = 3/72 (4%)
Query: 336 GCFVVRNS-STKGLYTLSL--YTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVNY 392
G F++R S +TKG Y+LS+ + + HVKHY I++ G ++++ + ++ ++V +
Sbjct: 27 GTFLIRESETTKGAYSLSIRDWDDMKGDHVKHYKIRKLDNGGYYITTRAQFETLQQLVQH 86
Query: 393 HRHNSGGLASRL 404
+ + GL RL
Sbjct: 87 YSERAAGLCCRL 98
>gnl|CDD|213009 cd12076, SH3_Tks4_2, Second Src homology 3 domain of Tyrosine
kinase substrate with four SH3 domains. Tks4, also
called SH3 and PX domain-containing protein 2B
(SH3PXD2B) or HOFI, is a Src substrate and scaffolding
protein that plays an important role in the formation of
podosomes and invadopodia, the dynamic actin-rich
structures that are related to cell migration and cancer
cell invasion. It is required in the formation of
functional podosomes, EGF-induced membrane ruffling, and
lamellipodia generation. It plays an important role in
cellular attachment and cell spreading. Tks4 is
essential for the localization of MT1-MMP (membrane-type
1 matrix metalloproteinase) to invadopodia. It contains
an N-terminal Phox homology (PX) domain and four SH3
domains. This model characterizes the second SH3 domain
of Tks4. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 43.5 bits (102), Expect = 5e-06
Identities = 19/52 (36%), Positives = 34/52 (65%), Gaps = 1/52 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
+YP+ A + +++LEKGA EV+ E WWK++ + G G+ P++Y+K+
Sbjct: 4 TVIYPYTARDQDEINLEKGAVVEVIQKNLEGWWKIRYQ-GKEGWAPASYLKK 54
Score = 35.4 bits (81), Expect = 0.004
Identities = 14/36 (38%), Positives = 23/36 (63%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK 111
+YP+ A + +++LEKGA EV+ E WWK++
Sbjct: 4 TVIYPYTARDQDEINLEKGAVVEVIQKNLEGWWKIR 39
>gnl|CDD|173628 cd05038, PTKc_Jak_rpt2, Catalytic (repeat 2) domain of the Protein
Tyrosine Kinases, Janus kinases. Protein Tyrosine
Kinase (PTK) family; Janus kinase (Jak) subfamily;
catalytic (c) domain (repeat 2). The Jak subfamily is
composed of Jak1, Jak2, Jak3, TYK2, and similar
proteins. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
Jak subfamily proteins are cytoplasmic (or nonreceptor)
tyr kinases containing an N-terminal FERM domain,
followed by a Src homology 2 (SH2) domain, a
pseudokinase domain, and a C-terminal tyr kinase
catalytic domain. Most Jaks are expressed in a wide
variety of tissues, except for Jak3, which is expressed
only in hematopoietic cells. Jaks are crucial for
cytokine receptor signaling. They are activated by
autophosphorylation upon cytokine-induced receptor
aggregation, and subsequently trigger downstream
signaling events such as the phosphorylation of signal
transducers and activators of transcription (STATs).
Jaks are also involved in regulating the surface
expression of some cytokine receptors. The Jak-STAT
pathway is involved in many biological processes
including hematopoiesis, immunoregulation, host defense,
fertility, lactation, growth, and embryogenesis.
Length = 284
Score = 47.8 bits (114), Expect = 6e-06
Identities = 21/44 (47%), Positives = 28/44 (63%), Gaps = 2/44 (4%)
Query: 4 GSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
GSL +YL+RH + + N+ LL Q+CKGM YL YIHR+
Sbjct: 93 GSLRDYLQRHRDQI--NLKRLLLFSSQICKGMDYLGSQRYIHRD 134
Score = 41.6 bits (98), Expect = 5e-04
Identities = 13/22 (59%), Positives = 19/22 (86%)
Query: 208 RFSSKSDVWAYGVLMWEVFTCG 229
+FSS SDVW++GV ++E+FT G
Sbjct: 188 KFSSASDVWSFGVTLYELFTYG 209
Score = 40.1 bits (94), Expect = 0.002
Identities = 22/77 (28%), Positives = 35/77 (45%), Gaps = 10/77 (12%)
Query: 431 LMLLEELGSGQFGVVRRGKWRGSID-----VAMMKEGTMSED----DFIEEAKVMTRLQH 481
L +++LG G FG V ++ D VA+ E+ DF E +++ L H
Sbjct: 6 LKFIKQLGEGHFGKVELCRYDPLGDNTGEQVAVKSLNHSGEEQHRSDFEREIEILRTLDH 65
Query: 482 QNLVQLYGVCSK-HRPI 497
+N+V+ GVC K
Sbjct: 66 ENIVKYKGVCEKPGGRS 82
>gnl|CDD|133232 cd05101, PTKc_FGFR2, Catalytic domain of the Protein Tyrosine
Kinase, Fibroblast Growth Factor Receptor 2. Protein
Tyrosine Kinase (PTK) family; Fibroblast Growth Factor
Receptor 2 (FGFR2); catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. FGFR2 is
part of the FGFR subfamily, which are receptor tyr
kinases (RTKs) containing an extracellular
ligand-binding region with three immunoglobulin-like
domains, a transmembrane segment, and an intracellular
catalytic domain. The binding of FGFRs to their ligands,
the FGFs, results in receptor dimerization and
activation, and intracellular signaling. The binding of
FGFs to FGFRs is promiscuous, in that a receptor may be
activated by several ligands and a ligand may bind to
more that one type of receptor. There are many splice
variants of FGFR2 which show differential expression and
binding to FGF ligands. Disruption of either FGFR2 or
FGFR2b is lethal in mice, due to defects in the placenta
or severe impairment of tissue development including
lung, limb, and thyroid, respectively. Disruption of
FGFR2c in mice results in defective bone and skull
development. Genetic alterations of FGFR2 are associated
with many human skeletal disorders including Apert
syndrome, Crouzon syndrome, Jackson-Weiss syndrome, and
Pfeiffer syndrome.
Length = 304
Score = 48.1 bits (114), Expect = 6e-06
Identities = 19/46 (41%), Positives = 31/46 (67%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
++ +SDVW++GVLMWE+FT G PY + E+ ++ G ++KP
Sbjct: 216 YTHQSDVWSFGVLMWEIFTLGGSPYPGIPVEELFKLLKEGHRMDKP 261
Score = 45.4 bits (107), Expect = 3e-05
Identities = 28/101 (27%), Positives = 52/101 (51%), Gaps = 14/101 (13%)
Query: 419 LSHD-KWEIDPAELMLLEELGSGQFGVV----------RRGKWRGSIDVAMMKEGTMSED 467
L D +WE +L L + LG G FG V + K ++ V M+K+ +D
Sbjct: 4 LPEDPRWEFSRDKLTLGKPLGEGCFGQVVMAEALGIDKDKPKEAVTVAVKMLKDDATEKD 63
Query: 468 --DFIEEAKVMTRL-QHQNLVQLYGVCSKHRPIYIVTDTSS 505
D + E ++M + +H+N++ L G C++ P+Y++ + +S
Sbjct: 64 LSDLVSEMEMMKMIGKHKNIINLLGACTQDGPLYVIVEYAS 104
>gnl|CDD|173654 cd05108, PTKc_EGFR, Catalytic domain of the Protein Tyrosine
Kinase, Epidermal Growth Factor Receptor. Protein
Tyrosine Kinase (PTK) family; Epidermal Growth Factor
Receptor (EGFR); catalytic (c) domain. The PTKc family
is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. EGFR
(HER1, ErbB1) is a member of the EGFR (HER, ErbB)
subfamily of proteins, which are receptor tyr kinases
(RTKs) containing an extracellular EGF-related
ligand-binding region, a transmembrane helix, and a
cytoplasmic region with a tyr kinase domain and a
regulatory C-terminal tail. Unlike other tyr kinases,
phosphorylation of the activation loop of EGFR proteins
is not critical to their activation. Instead, they are
activated by ligand-induced dimerization, leading to the
phosphorylation of tyr residues in the C-terminal tail,
which serve as binding sites for downstream signaling
molecules. Ligands for EGFR include EGF, heparin binding
EGF-like growth factor (HBEGF), epiregulin,
amphiregulin, TGFalpha, and betacellulin. Upon ligand
binding, EGFR can form homo- or heterodimers with other
EGFR subfamily members. The EGFR signaling pathway is
one of the most important pathways regulating cell
proliferation, differentiation, survival, and growth.
Overexpression and mutation in the kinase domain of EGFR
have been implicated in the development and progression
of a variety of cancers. A number of monoclonal
antibodies and small molecule inhibitors have been
developed that target EGFR, including the antibodies
Cetuximab and Panitumumab, which are used in combination
with other therapies for the treatment of colorectal
cancer and non-small cell lung carcinoma (NSCLC). The
small molecule inhibitors Gefitinib (Iressa) and
Erlotinib (Tarceva), already used for NSCLC, are
undergoing clinical trials for other types of cancer
including gastrointestinal, breast, head and neck, and
bladder.
Length = 316
Score = 48.1 bits (114), Expect = 6e-06
Identities = 20/47 (42%), Positives = 30/47 (63%), Gaps = 2/47 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M G LL+Y+R H++ +G LL+ C+Q+ KGM YLE +HR+
Sbjct: 90 MPFGCLLDYVREHKDNIGSQ--YLLNWCVQIAKGMNYLEERRLVHRD 134
Score = 44.2 bits (104), Expect = 1e-04
Identities = 21/70 (30%), Positives = 36/70 (51%), Gaps = 12/70 (17%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP------------KA 256
++ +SDVW+YGV +WE+ T G PY + +E+ +++G L +P K
Sbjct: 188 YTHQSDVWSYGVTVWELMTFGSKPYDGIPASEISSILEKGERLPQPPICTIDVYMIMVKC 247
Query: 257 WYVGDMSRQR 266
W + SR +
Sbjct: 248 WMIDADSRPK 257
Score = 36.1 bits (83), Expect = 0.035
Identities = 18/64 (28%), Positives = 34/64 (53%), Gaps = 9/64 (14%)
Query: 437 LGSGQFGVVRRGKW-------RGSIDVAMMKEGT--MSEDDFIEEAKVMTRLQHQNLVQL 487
LGSG FG V +G W + + + ++E T + + ++EA VM + + ++ +L
Sbjct: 15 LGSGAFGTVYKGLWIPEGEKVKIPVAIKELREATSPKANKEILDEAYVMASVDNPHVCRL 74
Query: 488 YGVC 491
G+C
Sbjct: 75 LGIC 78
>gnl|CDD|133189 cd05058, PTKc_Met_Ron, Catalytic domain of the Protein Tyrosine
Kinases, Met and Ron. Protein Tyrosine Kinase (PTK)
family; Met and Ron; catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Met and
Ron are receptor tyr kinases (RTKs) composed of an
alpha-beta heterodimer. The extracellular alpha chain is
disulfide linked to the beta chain, which contains an
extracellular ligand-binding region with a sema domain,
a PSI domain and four IPT repeats, a transmembrane
segment, and an intracellular catalytic domain. Binding
to their ligands leads to receptor dimerization,
autophosphorylation, activation, and intracellular
signaling. Met binds to the ligand, hepatocyte growth
factor/scatter factor (HGF/SF), and is also called the
HGF receptor. HGF/Met signaling plays a role in growth,
transformation, cell motility, invasion, metastasis,
angiogenesis, wound healing, and tissue regeneration.
Aberrant expression of Met through mutations or gene
amplification is associated with many human cancers
including hereditary papillary renal and gastric
carcinomas. The ligand for Ron is macrophage stimulating
protein (MSP). Ron signaling is important in regulating
cell motility, adhesion, proliferation, and apoptosis.
Aberrant Ron expression is implicated in tumorigenesis
and metastasis.
Length = 262
Score = 47.5 bits (113), Expect = 6e-06
Identities = 19/52 (36%), Positives = 34/52 (65%)
Query: 204 LNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
L +F++KSDVW++GVL+WE+ T G PY + + ++ + +G L +P+
Sbjct: 174 LQTQKFTTKSDVWSFGVLLWELMTRGAPPYPDVDSFDITVYLLQGRRLLQPE 225
Score = 40.5 bits (95), Expect = 0.001
Identities = 17/47 (36%), Positives = 26/47 (55%), Gaps = 2/47 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M+HG L N++R + V L+ +QV KGM YL ++HR+
Sbjct: 79 MKHGDLRNFIRSETHN--PTVKDLIGFGLQVAKGMEYLASKKFVHRD 123
>gnl|CDD|212833 cd11900, SH3_Nck1_1, First Src Homology 3 domain of Nck1 adaptor
protein. Nck1 (also called Nckalpha) plays a crucial
role in connecting signaling pathways of tyrosine kinase
receptors and important effectors in actin dynamics and
cytoskeletal remodeling. It binds and activates RasGAP,
resulting in the downregulation of Ras. It is also
involved in the signaling of endothilin-mediated
inhibition of cell migration. Nck adaptor proteins
regulate actin cytoskeleton dynamics by linking
proline-rich effector molecules to protein tyrosine
kinases and phosphorylated signaling intermediates. They
contain three SH3 domains and a C-terminal SH2 domain.
They function downstream of the PDGFbeta receptor and
are involved in Rho GTPase signaling and actin dynamics.
Vertebrates contain two Nck adaptor proteins: Nck1 (also
called Nckalpha) and Nck2, which show partly overlapping
functions but also bind distinct targets. The first SH3
domain of Nck1 binds the PxxDY sequence in the CD3e
cytoplasmic tail; this binding inhibits phosphorylation
by Src kinases, resulting in the downregulation of TCR
surface expression. SH3 domains are protein interaction
domains that usually bind to proline-rich ligands with
moderate affinity and selectivity, preferentially a PxxP
motif. They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 59
Score = 43.2 bits (101), Expect = 7e-06
Identities = 19/55 (34%), Positives = 35/55 (63%), Gaps = 1/55 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKEK 181
VVVA + + A + +L ++K ++DD++ WW+V++ G++PSNYV+ K
Sbjct: 4 VVVAKFDYVAQQDQELDIKKNERLWLLDDSKS-WWRVRNAMNKTGFVPSNYVERK 57
>gnl|CDD|173651 cd05095, PTKc_DDR2, Catalytic domain of the Protein Tyrosine
Kinase, Discoidin Domain Receptor 2. Protein Tyrosine
Kinase (PTK) family; mammalian Discoidin Domain Receptor
2 (DDR2) and homologs; catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. DDR2 is a
member of the DDR subfamily, which are receptor tyr
kinases (RTKs) containing an extracellular discoidin
homology domain, a transmembrane segment, an extended
juxtamembrane region, and an intracellular catalytic
domain. The binding of the ligand, collagen, to DDRs
results in a slow but sustained receptor activation.
DDR2 binds mostly to fibrillar collagens. More recently,
it has been reported to also bind collagen X. DDR2 is
widely expressed in many tissues with the highest levels
found in skeletal muscle, skin, kidney and lung. It is
important in cell proliferation and development. Mice,
with a deletion of DDR2, suffer from dwarfism and
delayed healing of epidermal wounds. DDR2 also
contributes to collagen (type I) regulation by
inhibiting fibrillogenesis and altering the morphology
of collagen fibers. It is also expressed in immature
dendritic cells (DCs), where it plays a role in DC
activation and function.
Length = 296
Score = 47.6 bits (113), Expect = 7e-06
Identities = 16/37 (43%), Positives = 28/37 (75%), Gaps = 1/37 (2%)
Query: 208 RFSSKSDVWAYGVLMWEVFT-CGKMPYGRLKNTEVVD 243
+F++ SDVWA+GV +WE+ T C + PY +L + +V++
Sbjct: 208 KFTTASDVWAFGVTLWEILTLCKEQPYSQLSDEQVIE 244
Score = 40.3 bits (94), Expect = 0.001
Identities = 26/93 (27%), Positives = 44/93 (47%), Gaps = 21/93 (22%)
Query: 431 LMLLEELGSGQFGVVRRGKWRGSID-------------------VAMMKE--GTMSEDDF 469
L E+LG GQFG V + G V M++E + +DF
Sbjct: 7 LTFKEKLGEGQFGEVHLCEAEGMEKFMDKDFSLDVSGNQPVLVAVKMLREDANKNARNDF 66
Query: 470 IEEAKVMTRLQHQNLVQLYGVCSKHRPIYIVTD 502
++E K+M+RL+ N+++L VC P+ ++T+
Sbjct: 67 LKEIKIMSRLKDPNIIRLLAVCITSDPLCMITE 99
Score = 34.1 bits (78), Expect = 0.13
Identities = 17/55 (30%), Positives = 27/55 (49%), Gaps = 8/55 (14%)
Query: 1 MRHGSLLNYLRRHE--------NTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M +G L +L RHE + + + L+ M Q+ GM YL N++HR+
Sbjct: 101 MENGDLNQFLSRHEPQEAAEKADVVTISYSTLIFMATQIASGMKYLSSLNFVHRD 155
>gnl|CDD|212883 cd11950, SH3_GRAP2_C, C-terminal Src homology 3 domain of
GRB2-related adaptor protein 2. GRAP2 is also called
GADS (GRB2-related adapter downstream of Shc), GrpL,
GRB2L, Mona, or GRID (Grb2-related protein with insert
domain). It is expressed specifically in the
hematopoietic system. It plays an important role in T
cell receptor (TCR) signaling by promoting the formation
of the SLP-76:LAT complex, which couples the TCR to the
Ras pathway. It also has roles in antigen-receptor and
tyrosine kinase mediated signaling. GRAP2 is unique from
other GRB2-like adaptor proteins in that it can be
regulated by caspase cleavage. It contains an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. The C-terminal SH3 domain of GRAP2 binds to
different motifs found in substrate peptides including
the typical PxxP motif in hematopoietic progenitor
kinase 1 (HPK1), the RxxK motif in SLP-76 and HPK1, and
the RxxxxK motif in phosphatase-like protein HD-PTP. SH3
domains are protein interaction domains that typically
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 42.5 bits (100), Expect = 9e-06
Identities = 21/52 (40%), Positives = 29/52 (55%), Gaps = 1/52 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
V ALY F+A+E +L G EV+D + WWK + G +G P+NYV
Sbjct: 2 VRALYDFEALEDDELGFNSGDVIEVLDSSNPSWWKGRLH-GKLGLFPANYVA 52
Score = 34.0 bits (78), Expect = 0.013
Identities = 15/40 (37%), Positives = 21/40 (52%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKN 114
V ALY F+A+E +L G EV+D + WWK +
Sbjct: 2 VRALYDFEALEDDELGFNSGDVIEVLDSSNPSWWKGRLHG 41
>gnl|CDD|198180 cd09926, SH2_CRK_like, Src homology 2 domain found in
cancer-related signaling adaptor protein CRK. SH2
domain in the CRK proteins. CRKI (SH2-SH3) and CRKII
(SH2-SH3-SH3) are splicing isoforms of the oncoprotein
CRK. CRKs regulate transcription and cytoskeletal
reorganization for cell growth and motility by linking
tyrosine kinases to small G proteins. The SH2 domain of
CRK associates with tyrosine-phosphorylated receptors or
components of focal adhesions, such as p130Cas and
paxillin. CRK transmits signals to small G proteins
through effectors that bind its SH3 domain, such as C3G,
the guanine-nucleotide exchange factor (GEF) for Rap1
and R-Ras, and DOCK180, the GEF for Rac6. The binding of
p130Cas to the CRK-C3G complex activates Rap1, leading
to regulation of cell adhesion, and activates R-Ras,
leading to JNK-mediated activation of cell
proliferation, whereas the binding of CRK DOCK180
induces Rac1-mediated activation of cellular migration.
The activity of the different splicing isoforms varies
greatly with CRKI displaying substantial transforming
activity, CRKII less so, and phosphorylated CRKII with
no biological activity whatsoever. CRKII has a linker
region with a phosphorylated Tyr and an additional
C-terminal SH3 domain. The phosphorylated Tyr creates a
binding site for its SH2 domain which disrupts the
association between CRK and its SH2 target proteins. In
general SH2 domains are involved in signal transduction.
They typically bind pTyr-containing ligands via two
surface pockets, a pTyr and hydrophobic binding pocket,
allowing proteins with SH2 domains to localize to
tyrosine phosphorylated sites.
Length = 106
Score = 44.0 bits (104), Expect = 1e-05
Identities = 21/40 (52%), Positives = 27/40 (67%), Gaps = 2/40 (5%)
Query: 256 AWYVGDMSRQRAESILKQEDKEGCFVVRNSST-KGLYTLS 294
+WY G MSRQ A+ +L Q + G F+VR+SST G Y LS
Sbjct: 8 SWYFGPMSRQEAQELL-QGQRHGVFLVRDSSTIPGDYVLS 46
>gnl|CDD|212697 cd11763, SH3_SNX9_like, Src Homology 3 domain of Sorting Nexin 9
and similar proteins. Sorting nexins (SNXs) are Phox
homology (PX) domain containing proteins that are
involved in regulating membrane traffic and protein
sorting in the endosomal system. SNXs differ from each
other in their lipid-binding specificity, subcellular
localization and specific function in the endocytic
pathway. This subfamily consists of SH3 domain
containing SNXs including SNX9, SNX18, SNX33, and
similar proteins. SNX9 is localized to plasma membrane
endocytic sites and acts primarily in clathrin-mediated
endocytosis, while SNX18 is localized to peripheral
endosomal structures, and acts in a trafficking pathway
that is clathrin-independent but relies on AP-1 and
PACS1. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 42.7 bits (101), Expect = 1e-05
Identities = 18/52 (34%), Positives = 27/52 (51%), Gaps = 1/52 (1%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVM-DDTQEHWWKVKDKNGSVGYIPSNYVKE 180
ALY F + G+LSL G + D + W + ++ G VG PS+YV+
Sbjct: 4 ALYDFDSQPSGELSLRAGEVLTITRQDVGDGWLEGRNSRGEVGLFPSSYVEI 55
Score = 28.1 bits (63), Expect = 1.4
Identities = 12/40 (30%), Positives = 19/40 (47%), Gaps = 1/40 (2%)
Query: 77 ALYPFKAIEGGDLSLEKGAEYEVM-DDTQEHWWKVKDKNG 115
ALY F + G+LSL G + D + W + ++ G
Sbjct: 4 ALYDFDSQPSGELSLRAGEVLTITRQDVGDGWLEGRNSRG 43
>gnl|CDD|173652 cd05100, PTKc_FGFR3, Catalytic domain of the Protein Tyrosine
Kinase, Fibroblast Growth Factor Receptor 3. Protein
Tyrosine Kinase (PTK) family; Fibroblast Growth Factor
Receptor 3 (FGFR3); catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. FGFR3 is
part of the FGFR subfamily, which are receptor tyr
kinases (RTKs) containing an extracellular
ligand-binding region with three immunoglobulin-like
domains, a transmembrane segment, and an intracellular
catalytic domain. The binding of FGFRs to their ligands,
the FGFs, results in receptor dimerization and
activation, and intracellular signaling. The binding of
FGFs to FGFRs is promiscuous, in that a receptor may be
activated by several ligands and a ligand may bind to
more that one type of receptor. Many FGFR3 splice
variants have been reported with the IIIb and IIIc
isoforms being the predominant forms. FGFR3 IIIc is the
isoform expressed in chondrocytes, the cells affected in
dwarfism, while IIIb is expressed in epithelial cells.
FGFR3 ligands include FGF1, FGF2, FGF4, FGF8, FGF9, and
FGF23. It is a negative regulator of long bone growth.
In the cochlear duct and in the lens, FGFR3 is involved
in differentiation while it appears to have a role in
cell proliferation in epithelial cells. Germline
mutations in FGFR3 are associated with skeletal
disorders including several forms of dwarfism. Some
missense mutations are associated with multiple myeloma
and carcinomas of the bladder and cervix. Overexpression
of FGFR3 is found in thyroid carcinoma.
Length = 334
Score = 47.3 bits (112), Expect = 1e-05
Identities = 18/46 (39%), Positives = 31/46 (67%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
++ +SDVW++GVL+WE+FT G PY + E+ ++ G ++KP
Sbjct: 213 YTHQSDVWSFGVLLWEIFTLGGSPYPGIPVEELFKLLKEGHRMDKP 258
Score = 46.2 bits (109), Expect = 2e-05
Identities = 27/96 (28%), Positives = 50/96 (52%), Gaps = 13/96 (13%)
Query: 423 KWEIDPAELMLLEELGSGQFGVVRRGKWRG----------SIDVAMMKEGTMSED--DFI 470
KWE+ L L + LG G FG V + G ++ V M+K+ +D D +
Sbjct: 6 KWELSRTRLTLGKPLGEGCFGQVVMAEAIGIDKDKPNKPVTVAVKMLKDDATDKDLSDLV 65
Query: 471 EEAKVMTRL-QHQNLVQLYGVCSKHRPIYIVTDTSS 505
E ++M + +H+N++ L G C++ P+Y++ + +S
Sbjct: 66 SEMEMMKMIGKHKNIINLLGACTQDGPLYVLVEYAS 101
>gnl|CDD|212757 cd11823, SH3_Nostrin, Src homology 3 domain of Nitric Oxide
Synthase TRaffic INducer. Nostrin is expressed in
endothelial and epithelial cells and is involved in the
regulation, trafficking and targeting of endothelial NOS
(eNOS). It facilitates the endocytosis of eNOS by
coordinating the functions of dynamin and the
Wiskott-Aldrich syndrome protein (WASP). Increased
expression of Nostrin may be correlated to preeclampsia.
Nostrin contains an N-terminal F-BAR domain and a
C-terminal SH3 domain. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 42.3 bits (100), Expect = 1e-05
Identities = 19/52 (36%), Positives = 28/52 (53%), Gaps = 1/52 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
ALY + A +LSL+ G EV + + WW + + NG G P+ YV+E
Sbjct: 3 KALYSYTANREDELSLQPGDIIEVHEKQDDGWW-LGELNGKKGIFPATYVEE 53
Score = 29.2 bits (66), Expect = 0.51
Identities = 15/43 (34%), Positives = 22/43 (51%), Gaps = 2/43 (4%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW--KVKDKNGI 116
ALY + A +LSL+ G EV + + WW ++ K GI
Sbjct: 3 KALYSYTANREDELSLQPGDIIEVHEKQDDGWWLGELNGKKGI 45
>gnl|CDD|198211 cd10348, SH2_Cterm_shark_like, C-terminal Src homology 2 (SH2)
domain found in SH2 domains, ANK, and kinase domain
(shark) proteins. These non-receptor protein-tyrosine
kinases contain two SH2 domains, five ankyrin (ANK)-like
repeats, and a potential tyrosine phosphorylation site
in its carboxyl-terminal tail which resembles the
phosphorylation site in members of the src family. Like,
mammalian non-receptor protein-tyrosine kinases, ZAP-70
and syk proteins, they do not have SH3 domains. However,
the presence of ANK makes these unique among
protein-tyrosine kinases. Both tyrosine kinases and ANK
repeats have been shown to transduce developmental
signals, and SH2 domains are known to participate
intimately in tyrosine kinase signaling. These tyrosine
kinases are believed to be involved in epithelial cell
polarity. The members of this family include the shark
(SH2 domains, ANK, and kinase domain) gene in Drosophila
and yellow fever mosquitos, as well as the hydra protein
HTK16. Drosophila Shark is proposed to transduce
intracellularly the Crumbs, a protein necessary for
proper organization of ectodermal epithelia,
intercellular signal. In general SH2 domains are
involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 86
Score = 43.2 bits (102), Expect = 1e-05
Identities = 25/80 (31%), Positives = 39/80 (48%), Gaps = 7/80 (8%)
Query: 257 WYVGDMSRQRAESILKQE-DKEGCFVVRNSSTK-GLYTLSL-YTKVPHPHVKHYHIKQNS 313
W G + R A ILKQ+ D +G F+VR S + G Y L+L Y HV H+ I+
Sbjct: 2 WLHGALDRNEAVEILKQKADADGSFLVRYSRRRPGGYVLTLVYEN----HVYHFEIQNRD 57
Query: 314 RGEFFLSEKHCCHSIPEVKD 333
F++ + S+ + +
Sbjct: 58 DKWFYIDDGPYFESLEHLIE 77
Score = 35.9 bits (83), Expect = 0.006
Identities = 19/70 (27%), Positives = 34/70 (48%), Gaps = 6/70 (8%)
Query: 333 DKEGCFVVRNSSTK-GLYTLSL-YTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVV 390
D +G F+VR S + G Y L+L Y HV H+ I+ F++ + S+ ++
Sbjct: 21 DADGSFLVRYSRRRPGGYVLTLVYEN----HVYHFEIQNRDDKWFYIDDGPYFESLEHLI 76
Query: 391 NYHRHNSGGL 400
++ + GL
Sbjct: 77 EHYTQFADGL 86
>gnl|CDD|133233 cd05102, PTKc_VEGFR3, Catalytic domain of the Protein Tyrosine
Kinase, Vascular Endothelial Growth Factor Receptor 3.
Protein Tyrosine Kinase (PTK) family; Vascular
Endothelial Growth Factor Receptor 3 (VEGFR3); catalytic
(c) domain. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
VEGFR3 (or Flt4) is a member of the VEGFR subfamily of
proteins, which are receptor tyr kinases (RTKs)
containing an extracellular ligand-binding region with
seven immunoglobulin (Ig)-like domains, a transmembrane
segment, and an intracellular catalytic domain. In
VEGFR3, the fifth Ig-like domain is replaced by a
disulfide bridge. The binding of VEGFRs to their
ligands, the VEGFs, leads to receptor dimerization,
activation, and intracellular signaling. VEGFR3
preferentially binds the ligands VEGFC and VEGFD. VEGFR3
is essential for lymphatic endothelial cell (EC)
development and function. It has been shown to regulate
adaptive immunity during corneal transplantation. VEGFR3
is upregulated on blood vascular ECs in pathological
conditions such as vascular tumors and the periphery of
solid tumors. It plays a role in cancer progression and
lymph node metastasis. Missense mutations in the VEGFR3
gene are associated with primary human lymphedema.
Length = 338
Score = 46.5 bits (110), Expect = 2e-05
Identities = 19/48 (39%), Positives = 32/48 (66%), Gaps = 1/48 (2%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPY-GRLKNTEVVDRVQRGIILEKPK 255
++++SDVW++GVL+WE+F+ G PY G N E R++ G + P+
Sbjct: 253 YTTQSDVWSFGVLLWEIFSLGASPYPGVQINEEFCQRLKDGTRMRAPE 300
Score = 38.4 bits (89), Expect = 0.007
Identities = 27/82 (32%), Positives = 39/82 (47%), Gaps = 11/82 (13%)
Query: 423 KWEIDPAELMLLEELGSGQFGVV--------RRGKWRGSIDVAMMKEG-TMSEDD-FIEE 472
+WE L L + LG G FG V + ++ V M+KEG T SE + E
Sbjct: 1 QWEFPRDRLRLGKVLGHGAFGKVVEASAFGIDKKSSCNTVAVKMLKEGATASEHKALMSE 60
Query: 473 AKVMTRL-QHQNLVQLYGVCSK 493
K++ + H N+V L G C+K
Sbjct: 61 LKILIHIGNHLNVVNLLGACTK 82
>gnl|CDD|198217 cd10354, SH2_Cterm_RasGAP, C-terminal Src homology 2 (SH2) domain
found in Ras GTPase-activating protein 1 (GAP). RasGAP
is part of the GAP1 family of GTPase-activating
proteins. The protein is located in the cytoplasm and
stimulates the GTPase activity of normal RAS p21, but
not its oncogenic counterpart. Acting as a suppressor of
RAS function, the protein enhances the weak intrinsic
GTPase activity of RAS proteins resulting in RAS
inactivation, thereby allowing control of cellular
proliferation and differentiation. Mutations leading to
changes in the binding sites of either protein are
associated with basal cell carcinomas. Alternative
splicing results in two isoforms. The shorter isoform
which lacks the N-terminal hydrophobic region, has the
same activity, and is expressed in placental tissues.
In general longer isoform contains 2 SH2 domains, a SH3
domain, a pleckstrin homology (PH) domain, and a
calcium-dependent phospholipid-binding C2 domain. The
C-terminus contains the catalytic domain of RasGap which
catalyzes the activation of Ras by hydrolyzing GTP-bound
active Ras into an inactive GDP-bound form of Ras. This
model contains the C-terminal SH2 domain. In general SH2
domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 77
Score = 42.8 bits (101), Expect = 2e-05
Identities = 23/78 (29%), Positives = 40/78 (51%), Gaps = 5/78 (6%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSRG 315
W+ G +SR+ A ++L + G F+VR S +T G Y+LS + +KH+ I
Sbjct: 2 WFHGKISREEAYNMLVKVGGPGSFLVRESDNTPGDYSLSFRV---NEGIKHFKIIPTGNN 58
Query: 316 EFFLSEKHCCHSIPEVKD 333
+F + + S+ +V D
Sbjct: 59 QFMMGGR-YFSSLDDVID 75
>gnl|CDD|133174 cd05042, PTKc_Aatyk, Catalytic domain of the Protein Tyrosine
Kinases, Apoptosis-associated tyrosine kinases. Protein
Tyrosine Kinase (PTK) family; Apoptosis-associated
tyrosine kinase (Aatyk) subfamily; catalytic (c) domain.
The Aatyk subfamily is also referred to as the lemur
tyrosine kinase (Lmtk) subfamily. It consists of Aatyk1
(Lmtk1), Aatyk2 (Lmtk2, Brek), Aatyk3 (Lmtk3), and
similar proteins. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
Aatyk proteins are mostly receptor tyr kinases (RTKs)
containing a transmembrane segment and a long C-terminal
cytoplasmic tail with a catalytic domain. Aatyk1 does
not contain a transmembrane segment and is a cytoplasmic
(or nonreceptor) kinase. Aatyk proteins are classified
as tyr kinases based on overall sequence similarity and
the phylogenetic tree. However, analysis of catalytic
residues suggests that Aatyk proteins may be
multispecific kinases, functioning also as
serine/threonine kinases. They are involved in neural
differentiation, nerve growth factor (NGF) signaling,
apoptosis, and spermatogenesis.
Length = 269
Score = 46.0 bits (109), Expect = 2e-05
Identities = 22/61 (36%), Positives = 36/61 (59%), Gaps = 2/61 (3%)
Query: 197 LELIHQVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRV--QRGIILEKP 254
+E+ Q L + KS++W+ GV MWE+FT PY L + +V+ +V ++ I L KP
Sbjct: 174 VEIRGQDLLPKDQTKKSNIWSLGVTMWELFTAADQPYPDLSDEQVLKQVVREQDIKLPKP 233
Query: 255 K 255
+
Sbjct: 234 Q 234
Score = 34.5 bits (79), Expect = 0.10
Identities = 21/73 (28%), Positives = 36/73 (49%), Gaps = 7/73 (9%)
Query: 435 EELGSGQFGVVRRGKWRGSIDVA--MMKEGTMS-----EDDFIEEAKVMTRLQHQNLVQL 487
+E+G+G FG V G+ + A ++KE S + F++E + L H N++Q
Sbjct: 1 DEIGNGWFGKVLLGEAHRGMSKARVVVKELRASATPDEQLLFLQEVQPYRELNHPNVLQC 60
Query: 488 YGVCSKHRPIYIV 500
G C + P +V
Sbjct: 61 LGQCIESIPYLLV 73
>gnl|CDD|133234 cd05103, PTKc_VEGFR2, Catalytic domain of the Protein Tyrosine
Kinase, Vascular Endothelial Growth Factor Receptor 2.
Protein Tyrosine Kinase (PTK) family; Vascular
Endothelial Growth Factor Receptor 2 (VEGFR2); catalytic
(c) domain. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
VEGFR2 (or Flk1) is a member of the VEGFR subfamily of
proteins, which are receptor tyr kinases (RTKs)
containing an extracellular ligand-binding region with
seven immunoglobulin (Ig)-like domains, a transmembrane
segment, and an intracellular catalytic domain. The
binding of VEGFRs to their ligands, the VEGFs, leads to
receptor dimerization, activation, and intracellular
signaling. The carboxyl terminus of VEGFR2 plays an
important role in its autophosphorylation and
activation. VEGFR2 binds the ligands VEGFA, VEGFC, VEGFD
and VEGFE. VEGFR2 signaling is implicated in all aspects
of normal and pathological vascular endothelial cell
biology. It induces a variety of cellular effects
including migration, survival, and proliferation. It is
critical in regulating embryonic vascular development
and angiogenesis. VEGFR2 is the major signal transducer
in pathological angiogenesis including cancer and
diabetic retinopathy, and is a target for inhibition in
cancer therapy.
Length = 343
Score = 46.2 bits (109), Expect = 2e-05
Identities = 18/47 (38%), Positives = 31/47 (65%), Gaps = 1/47 (2%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLK-NTEVVDRVQRGIILEKP 254
++ +SDVW++GVL+WE+F+ G PY +K + E R++ G + P
Sbjct: 258 YTIQSDVWSFGVLLWEIFSLGASPYPGVKIDEEFCRRLKEGTRMRAP 304
Score = 37.3 bits (86), Expect = 0.017
Identities = 31/96 (32%), Positives = 45/96 (46%), Gaps = 12/96 (12%)
Query: 423 KWEIDPAELMLLEELGSGQFGVVRRGKWRG--------SIDVAMMKEG-TMSE-DDFIEE 472
KWE L L + LG G FG V G ++ V M+KEG T SE + E
Sbjct: 1 KWEFPRDRLKLGKPLGRGAFGQVIEADAFGIDKTATCRTVAVKMLKEGATHSEHRALMSE 60
Query: 473 AKVMTRLQHQ-NLVQLYGVCSKH-RPIYIVTDTSSF 506
K++ + H N+V L G C+K P+ ++ + F
Sbjct: 61 LKILIHIGHHLNVVNLLGACTKPGGPLMVIVEFCKF 96
>gnl|CDD|133192 cd05061, PTKc_InsR, Catalytic domain of the Protein Tyrosine
Kinase, Insulin Receptor. Protein Tyrosine Kinase (PTK)
family; Insulin Receptor (InsR); catalytic (c) domain.
The PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. InsR is a
receptor tyr kinase (RTK) that is composed of two
alphabeta heterodimers. Binding of the insulin ligand to
the extracellular alpha subunit activates the
intracellular tyr kinase domain of the transmembrane
beta subunit. Receptor activation leads to
autophosphorylation, stimulating downstream kinase
activities, which initiate signaling cascades and
biological function. InsR signaling plays an important
role in many cellular processes including glucose
homeostasis, glycogen synthesis, lipid and protein
metabolism, ion and amino acid transport, cell cycle and
proliferation, cell differentiation, gene transcription,
and nitric oxide synthesis. Insulin resistance, caused
by abnormalities in InsR signaling, has been described
in diabetes, hypertension, cardiovascular disease,
metabolic syndrome, heart failure, and female
infertility.
Length = 288
Score = 46.1 bits (109), Expect = 2e-05
Identities = 17/47 (36%), Positives = 31/47 (65%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
F++ SD+W++GV++WE+ + + PY L N +V+ V G L++P
Sbjct: 198 FTTSSDMWSFGVVLWEITSLAEQPYQGLSNEQVLKFVMDGGYLDQPD 244
Score = 43.0 bits (101), Expect = 2e-04
Identities = 29/90 (32%), Positives = 46/90 (51%), Gaps = 12/90 (13%)
Query: 424 WEIDPAELMLLEELGSGQFGVVRRGKWR----GSIDVAMMKEGTMSED-------DFIEE 472
WE+ ++ LL ELG G FG+V G R G + + + T++E +F+ E
Sbjct: 1 WEVSREKITLLRELGQGSFGMVYEGNARDIIKGEAETRVAVK-TVNESASLRERIEFLNE 59
Query: 473 AKVMTRLQHQNLVQLYGVCSKHRPIYIVTD 502
A VM ++V+L GV SK +P +V +
Sbjct: 60 ASVMKGFTCHHVVRLLGVVSKGQPTLVVME 89
Score = 31.5 bits (71), Expect = 0.88
Identities = 18/54 (33%), Positives = 27/54 (50%), Gaps = 7/54 (12%)
Query: 1 MRHGSLLNYLR----RHENTLGG---NVGLLLDMCIQVCKGMAYLERHNYIHRE 47
M HG L +YLR EN G + ++ M ++ GMAYL ++HR+
Sbjct: 91 MAHGDLKSYLRSLRPEAENNPGRPPPTLQEMIQMAAEIADGMAYLNAKKFVHRD 144
>gnl|CDD|212928 cd11995, SH3_Intersectin1_5, Fifth Src homology 3 domain (or SH3E)
of Intersectin-1. Intersectin-1 (ITSN1) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN1 localizes in membranous organelles, CCPs, the
Golgi complex, and may be involved in the cell membrane
trafficking system. It exists in alternatively spliced
short and long isoforms. The short isoform contains two
Eps15 homology domains (EH1 and EH2), a coiled-coil
region and five SH3 domains (SH3A-E), while the long
isoform, in addition, contains RhoGEF (also called
Dbl-homologous or DH), Pleckstrin homology (PH) and C2
domains. The fifth SH3 domain (or SH3E) of ITSN1 has
been shown to bind many protein partners including
SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP,
and synaptojanin-1, among others. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 54
Score = 41.5 bits (97), Expect = 2e-05
Identities = 20/52 (38%), Positives = 28/52 (53%), Gaps = 1/52 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
V+ +Y + A +L+ KG V++ WWK + NG VG PSNYVK
Sbjct: 3 VIGMYDYTAQNDDELAFSKGQIINVLNKEDPDWWK-GELNGQVGLFPSNYVK 53
>gnl|CDD|212734 cd11800, SH3_DNMBP_C2_like, Second C-terminal Src homology 3 domain
of Dynamin Binding Protein, also called Tuba, and
similar domains. DNMBP or Tuba is a cdc42-specific
guanine nucleotide exchange factor (GEF) that contains
four N-terminal SH3 domains, a central RhoGEF [or Dbl
homology (DH)] domain followed by a Bin/Amphiphysin/Rvs
(BAR) domain, and two C-terminal SH3 domains. It
provides a functional link between dynamin, Rho GTPase
signaling, and actin dynamics. It plays an important
role in regulating cell junction configuration. The
C-terminal SH3 domains of DNMBP bind to N-WASP and
Ena/VASP proteins, which are key regulatory proteins of
the actin cytoskeleton. Also included in this subfamily
is the second C-terminal SH3 domain of Rho guanine
nucleotide exchange factor 37 (ARHGEF37), whose function
is still unknown. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 57
Score = 41.6 bits (98), Expect = 2e-05
Identities = 22/55 (40%), Positives = 31/55 (56%), Gaps = 5/55 (9%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMD--DTQ--EHWWKVKDKNGSVGYIPSNY 177
ALY F+A G+LS+ +G V++ D + WW V+D G GY+PSNY
Sbjct: 1 YYYALYTFEARSPGELSVTEGQVVTVLEKHDLKGNPEWWLVED-RGKQGYVPSNY 54
Score = 27.7 bits (62), Expect = 2.0
Identities = 15/46 (32%), Positives = 24/46 (52%), Gaps = 4/46 (8%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMD--DTQ--EHWWKVKDKNG 115
ALY F+A G+LS+ +G V++ D + WW V+D+
Sbjct: 1 YYYALYTFEARSPGELSVTEGQVVTVLEKHDLKGNPEWWLVEDRGK 46
>gnl|CDD|133227 cd05096, PTKc_DDR1, Catalytic domain of the Protein Tyrosine
Kinase, Discoidin Domain Receptor 1. Protein Tyrosine
Kinase (PTK) family; mammalian Discoidin Domain Receptor
1 (DDR1) and homologs; catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. DDR1 is a
member of the DDR subfamily, which are receptor tyr
kinases (RTKs) containing an extracellular discoidin
homology domain, a transmembrane segment, an extended
juxtamembrane region, and an intracellular catalytic
domain. The binding of the ligand, collagen, to DDRs
results in a slow but sustained receptor activation.
DDR1 binds to all collagens tested to date (types I-IV).
It is widely expressed in many tissues. It is abundant
in the brain and is also found in keratinocytes, colonic
mucosa epithelium, lung epithelium, thyroid follicles,
and the islets of Langerhans. During embryonic
development, it is found in the developing
neuroectoderm. DDR1 is a key regulator of cell
morphogenesis, differentiation and proliferation. It is
important in the development of the mammary gland, the
vasculator and the kidney. DDR1 is also found in human
leukocytes, where it facilitates cell adhesion,
migration, maturation, and cytokine production.
Length = 304
Score = 46.1 bits (109), Expect = 2e-05
Identities = 16/37 (43%), Positives = 27/37 (72%), Gaps = 1/37 (2%)
Query: 208 RFSSKSDVWAYGVLMWEVFT-CGKMPYGRLKNTEVVD 243
+F++ SDVWA+GV +WE+ C + PYG L + +V++
Sbjct: 216 KFTTASDVWAFGVTLWEILMLCKEQPYGELTDEQVIE 252
Score = 41.5 bits (97), Expect = 6e-04
Identities = 26/96 (27%), Positives = 47/96 (48%), Gaps = 27/96 (28%)
Query: 431 LMLLEELGSGQFGVV--------------------RRGKWRGSIDVAMM----KEGTMSE 466
L+ E+LG GQFG V R+G+ + VA+ +
Sbjct: 7 LLFKEKLGEGQFGEVHLCEVVNPQDLPTLQFPFNVRKGR---PLLVAVKILRPDANKNAR 63
Query: 467 DDFIEEAKVMTRLQHQNLVQLYGVCSKHRPIYIVTD 502
+DF++E K+++RL+ N+++L GVC P+ ++T+
Sbjct: 64 NDFLKEVKILSRLKDPNIIRLLGVCVDEDPLCMITE 99
Score = 32.2 bits (73), Expect = 0.51
Identities = 17/63 (26%), Positives = 26/63 (41%), Gaps = 16/63 (25%)
Query: 1 MRHGSLLNYLRRH---ENTLGGNVG-------------LLLDMCIQVCKGMAYLERHNYI 44
M +G L +L H + GN LL + +Q+ GM YL N++
Sbjct: 101 MENGDLNQFLSSHHLDDKEENGNDAVPPAHCLPAISYSSLLHVALQIASGMKYLSSLNFV 160
Query: 45 HRE 47
HR+
Sbjct: 161 HRD 163
>gnl|CDD|198225 cd10362, SH2_Src_Lck, Src homology 2 (SH2) domain in lymphocyte
cell kinase (Lck). Lck is a member of the Src
non-receptor type tyrosine kinase family of proteins. It
is expressed in the brain, T-cells, and NK cells. The
unique domain of Lck mediates its interaction with two
T-cell surface molecules, CD4 and CD8. It associates
with their cytoplasmic tails on CD4 T helper cells and
CD8 cytotoxic T cells to assist signaling from the T
cell receptor (TCR) complex. When the T cell receptor is
engaged by the specific antigen presented by MHC, Lck
phosphorylase the intracellular chains of the CD3 and
zeta-chains of the TCR complex, allowing ZAP-70 to bind
them. Lck then phosphorylates and activates ZAP-70,
which in turn phosphorylates Linker of Activated T cells
(LAT), a transmembrane protein that serves as a docking
site for proteins including: Shc-Grb2-SOS, PI3K, and
phospholipase C (PLC). The tyrosine phosphorylation
cascade culminates in the intracellular mobilization of
a calcium ions and activation of important signaling
cascades within the lymphocyte, including the
Ras-MEK-ERK pathway, which goes on to activate certain
transcription factors such as NFAT, NF-kappaB, and AP-1.
These transcription factors regulate the production
cytokines such as Interleukin-2 that promote long-term
proliferation and differentiation of the activated
lymphocytes. The N-terminal tail of Lck is
myristoylated and palmitoylated and it tethers the
protein to the plasma membrane of the cell. Lck also
contains a SH3 domain, a SH2 domain, and a C-terminal
tyrosine kinase domain. Lck has 2 phosphorylation sites,
the first an autophosphorylation site that is linked to
activation of the protein and the second which is
phosphorylated by Csk, which inhibits it. Lck is also
inhibited by SHP-1 dephosphorylation and by Cbl
ubiquitin ligase, which is part of the
ubiquitin-mediated pathway. In general SH2 domains are
involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 101
Score = 42.9 bits (101), Expect = 2e-05
Identities = 23/76 (30%), Positives = 41/76 (53%), Gaps = 3/76 (3%)
Query: 332 KDKEGCFVVRNS-STKGLYTLSLYTKVPHPH--VKHYHIKQNSRGEFFLSEKHCCHSIPE 388
+ G F++R S +T G ++LS+ + VKHY I+ G F++S + + E
Sbjct: 23 GNTHGSFLIRESETTAGSFSLSVRDFDQNQGEVVKHYKIRNLDNGGFYISPRITFPGLHE 82
Query: 389 VVNYHRHNSGGLASRL 404
+V ++ + S GL +RL
Sbjct: 83 LVRHYTNASDGLCTRL 98
Score = 36.8 bits (85), Expect = 0.004
Identities = 23/74 (31%), Positives = 40/74 (54%), Gaps = 4/74 (5%)
Query: 253 KPKAWYVGDMSRQRAESILKQE-DKEGCFVVRNS-STKGLYTLSLYTKVPHPH--VKHYH 308
+P+ W+ ++SR AE L + G F++R S +T G ++LS+ + VKHY
Sbjct: 1 EPEPWFFKNLSRNDAERQLLAPGNTHGSFLIRESETTAGSFSLSVRDFDQNQGEVVKHYK 60
Query: 309 IKQNSRGEFFLSEK 322
I+ G F++S +
Sbjct: 61 IRNLDNGGFYISPR 74
>gnl|CDD|133229 cd05098, PTKc_FGFR1, Catalytic domain of the Protein Tyrosine
Kinase, Fibroblast Growth Factor Receptor 1. Protein
Tyrosine Kinase (PTK) family; Fibroblast Growth Factor
Receptor 1 (FGFR1); catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. FGFR1 is
part of the FGFR subfamily, which are receptor tyr
kinases (RTKs) containing an extracellular
ligand-binding region with three immunoglobulin-like
domains, a transmembrane segment, and an intracellular
catalytic domain. The binding of FGFRs to their ligands,
the FGFs, results in receptor dimerization and
activation, and intracellular signaling. The binding of
FGFs to FGFRs is promiscuous, in that a receptor may be
activated by several ligands and a ligand may bind to
more that one type of receptor. Alternative splicing of
FGFR1 transcripts produces a variety of isoforms, which
are differentially expressed in cells. FGFR1 binds the
ligands, FGF1 and FGF2, with high affinity and has also
been reported to bind FGF4, FGF6, and FGF9. FGFR1
signaling is critical in the control of cell migration
during embryo development. It promotes cell
proliferation in fibroblasts. Nuclear FGFR1 plays a role
in the regulation of transcription. Mutations,
insertions or deletions of FGFR1 have been identified in
patients with Kallman's syndrome (KS), an inherited
disorder characterized by hypogonadotropic hypogonadism
and loss of olfaction. Aberrant FGFR1 expression has
been found in some human cancers including 8P11
myeloproliferative syndrome (EMS), breast cancer, and
pancreatic adenocarcinoma.
Length = 307
Score = 45.8 bits (108), Expect = 3e-05
Identities = 18/46 (39%), Positives = 31/46 (67%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKP 254
++ +SDVW++GVL+WE+FT G PY + E+ ++ G ++KP
Sbjct: 219 YTHQSDVWSFGVLLWEIFTLGGSPYPGVPVEELFKLLKEGHRMDKP 264
Score = 44.6 bits (105), Expect = 6e-05
Identities = 27/96 (28%), Positives = 49/96 (51%), Gaps = 13/96 (13%)
Query: 423 KWEIDPAELMLLEELGSGQFGVVRRGKWRG----------SIDVAMMKEGTMSED--DFI 470
+WE+ L+L + LG G FG V + G + V M+K +D D I
Sbjct: 12 RWEVPRDRLVLGKPLGEGCFGQVVMAEAIGLDKEKPNRVTKVAVKMLKSDATEKDLSDLI 71
Query: 471 EEAKVMTRL-QHQNLVQLYGVCSKHRPIYIVTDTSS 505
E ++M + +H+N++ L G C++ P+Y++ + +S
Sbjct: 72 SEMEMMKMIGKHKNIINLLGACTQDGPLYVIVEYAS 107
>gnl|CDD|212781 cd11847, SH3_Brk, Src homology 3 domain of Brk (Breast tumor
kinase) Protein Tyrosine Kinase (PTK), also called PTK6.
Brk is a cytoplasmic (or non-receptor) PTK with limited
homology to Src kinases. It has been found to be
overexpressed in a majority of breast tumors. It plays
roles in normal cell differentiation, proliferation,
survival, migration, and cell cycle progression. Brk
substrates include RNA-binding proteins (SLM-1/2,
Sam68), transcription factors (STAT3/5), and signaling
molecules (Akt, paxillin, IRS-4). Src kinases in general
contain an N-terminal SH4 domain with a myristoylation
site, followed by SH3 and SH2 domains, a tyr kinase
domain, and a regulatory C-terminal region containing a
conserved tyr; they are activated by autophosphorylation
at the tyr kinase domain, but are negatively regulated
by phosphorylation at the C-terminal tyr by Csk
(C-terminal Src Kinase). However, Brk lacks the
N-terminal myristoylation site. The SH3 domain of Src
kinases contributes to substrate recruitment by binding
adaptor proteins/substrates, and regulation of kinase
activity through an intramolecular interaction. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 58
Score = 41.4 bits (97), Expect = 3e-05
Identities = 17/56 (30%), Positives = 32/56 (57%), Gaps = 4/56 (7%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK-DKNGSV---GYIPSNYVKE 180
AL+ FKA +LS + G ++ + + + + W +K D+ G V G++P+NY+
Sbjct: 3 KALWDFKARGDEELSFQAGDQFRIAERSGDWWTALKLDRAGGVVAQGFVPNNYLAR 58
Score = 31.8 bits (72), Expect = 0.078
Identities = 12/41 (29%), Positives = 23/41 (56%), Gaps = 1/41 (2%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK-DKNG 115
AL+ FKA +LS + G ++ + + + + W +K D+ G
Sbjct: 3 KALWDFKARGDEELSFQAGDQFRIAERSGDWWTALKLDRAG 43
>gnl|CDD|212810 cd11877, SH3_PIX, Src Homology 3 domain of Pak Interactive eXchange
factors. PIX proteins are Rho guanine nucleotide
exchange factors (GEFs), which activate small GTPases by
exchanging bound GDP for free GTP. They act as GEFs for
both Cdc42 and Rac 1, and have been implicated in cell
motility, adhesion, neurite outgrowth, and cell
polarity. Vertebrates contain two proteins from the PIX
subfamily, alpha-PIX and beta-PIX. Alpha-PIX, also
called ARHGEF6, is localized in dendritic spines where
it regulates spine morphogenesis. Mutations in the
ARHGEF6 gene cause X-linked intellectual disability in
humans. Beta-PIX play roles in regulating neuroendocrine
exocytosis, focal adhesion maturation, cell migration,
synaptic vesicle localization, and insulin secretion.
PIX proteins contain an N-terminal SH3 domain followed
by RhoGEF (also called Dbl-homologous or DH) and
Pleckstrin Homology (PH) domains, and a C-terminal
leucine-zipper domain for dimerization. The SH3 domain
of PIX binds to an atypical PxxxPR motif in
p21-activated kinases (PAKs) with high affinity. The
binding of PAKs to PIX facilitate the localization of
PAKs to focal complexes and also localizes PAKs to PIX
targets Cdc43 and Rac, leading to the activation of
PAKs. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 41.1 bits (97), Expect = 3e-05
Identities = 20/54 (37%), Positives = 28/54 (51%), Gaps = 1/54 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
+V A + F+ +LS +KG V + WW+ NG G+ PSNYVKE
Sbjct: 1 LVRAKFNFEGTNEDELSFDKGDIITVTQVVEGGWWE-GTLNGKTGWFPSNYVKE 53
>gnl|CDD|212700 cd11766, SH3_Nck_2, Second Src Homology 3 domain of Nck adaptor
proteins. Nck adaptor proteins regulate actin
cytoskeleton dynamics by linking proline-rich effector
molecules to protein tyrosine kinases and phosphorylated
signaling intermediates. They contain three SH3 domains
and a C-terminal SH2 domain. They function downstream of
the PDGFbeta receptor and are involved in Rho GTPase
signaling and actin dynamics. Vertebrates contain two
Nck adaptor proteins: Nck1 (also called Nckalpha) and
Nck2 (also called Nckbeta or Growth factor
receptor-bound protein 4, Grb4), which show partly
overlapping functions but also bind distinct targets.
Their SH3 domains are involved in recruiting downstream
effector molecules, such as the N-WASP/Arp2/3 complex,
which when activated induces actin polymerization that
results in the production of pedestals, or protrusions
of the plasma membrane. The second SH3 domain of Nck
appears to prefer ligands containing the APxxPxR motif.
SH3 domains are protein interaction domains that usually
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially a PxxP motif. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 41.1 bits (97), Expect = 4e-05
Identities = 20/54 (37%), Positives = 31/54 (57%), Gaps = 1/54 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
V + ++A +LSL KG V++ + + WW+ + NG VG+ PSNYV E
Sbjct: 1 PAVVKFNYEAQREDELSLRKGDRVLVLEKSSDGWWRGEC-NGQVGWFPSNYVTE 53
>gnl|CDD|212746 cd11812, SH3_AHI-1, Src Homology 3 domain of Abelson helper
integration site-1 (AHI-1). AHI-1, also called
Jouberin, is expressed in high levels in the brain,
gonad tissues, and skeletal muscle. It is an adaptor
protein that interacts with the small GTPase Rab8a and
regulates it distribution and function, affecting cilium
formation and vesicle transport. Mutations in the AHI-1
gene can cause Joubert syndrome, a disorder
characterized by brainstem malformations, cerebellar
aplasia/hypoplasia, and retinal dystrophy. AHI-1
variation is also associated with susceptibility to
schizophrenia and type 2 diabetes mellitus progression.
AHI-1 contains WD40 and SH3 domains. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 52
Score = 41.0 bits (96), Expect = 4e-05
Identities = 19/51 (37%), Positives = 28/51 (54%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
VVALY + A +L++ +G V+ ++WW NG GY P+NYV
Sbjct: 2 VVALYDYTANRSDELTIHRGDIIRVLYKDNDNWWFGSLVNGQQGYFPANYV 52
Score = 27.1 bits (60), Expect = 3.7
Identities = 11/34 (32%), Positives = 19/34 (55%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW 108
VVALY + A +L++ +G V+ ++WW
Sbjct: 2 VVALYDYTANRSDELTIHRGDIIRVLYKDNDNWW 35
>gnl|CDD|212881 cd11948, SH3_GRAP_N, N-terminal Src homology 3 domain of
GRB2-related adaptor protein. GRAP is a GRB-2 like
adaptor protein that is highly expressed in lymphoid
tissues. It acts as a negative regulator of T cell
receptor (TCR)-induced lymphocyte proliferation by
downregulating the signaling to the Ras/ERK pathway. It
has been identified as a regulator of TGFbeta signaling
in diabetic kidney tubules and may have a role in the
pathogenesis of the disease. GRAP contains an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. The N-terminal SH3 domain of the related protein
GRB2 binds to Sos and Sos-derived proline-rich peptides.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 40.6 bits (95), Expect = 5e-05
Identities = 23/53 (43%), Positives = 33/53 (62%), Gaps = 4/53 (7%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEV--MDDTQEHWWKVKDKNGSVGYIPSNYVK 179
VALY F+A E +L +KG ++ M+D Q +W+K + G GYIP NY+K
Sbjct: 3 VALYSFQATESDELPFQKGDILKILNMEDDQ-NWYKA-ELQGREGYIPKNYIK 53
Score = 28.2 bits (63), Expect = 1.2
Identities = 15/36 (41%), Positives = 23/36 (63%), Gaps = 3/36 (8%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEV--MDDTQEHWWK 109
VALY F+A E +L +KG ++ M+D Q +W+K
Sbjct: 3 VALYSFQATESDELPFQKGDILKILNMEDDQ-NWYK 37
>gnl|CDD|212717 cd11783, SH3_SH3RF_3, Third Src Homology 3 domain of SH3 domain
containing ring finger 1 (SH3RF1), SH3RF3, and similar
domains. SH3RF1 (or POSH) and SH3RF3 (or POSH2) are
scaffold proteins that function as E3 ubiquitin-protein
ligases. They contain an N-terminal RING finger domain
and four SH3 domains. This model represents the third
SH3 domain, located in the middle of SH3RF1 and SH3RF3,
and similar domains. SH3RF1 plays a role in calcium
homeostasis through the control of the ubiquitin domain
protein Herp. It may also have a role in regulating
death receptor mediated and JNK mediated apoptosis.
SH3RF3 interacts with p21-activated kinase 2 (PAK2) and
GTP-loaded Rac1. It may play a role in regulating JNK
mediated apoptosis in certain conditions. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 40.5 bits (95), Expect = 6e-05
Identities = 21/54 (38%), Positives = 30/54 (55%), Gaps = 1/54 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKD-KNGSVGYIPSNYVK 179
+ VALYP+K + +L L KG Y V + Q+ W+K + G G P NYV+
Sbjct: 1 IYVALYPYKPQKPDELELRKGEMYTVTEKCQDGWFKGTSLRTGQSGVFPGNYVQ 54
Score = 32.4 bits (74), Expect = 0.039
Identities = 15/36 (41%), Positives = 22/36 (61%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK 109
+ VALYP+K + +L L KG Y V + Q+ W+K
Sbjct: 1 IYVALYPYKPQKPDELELRKGEMYTVTEKCQDGWFK 36
>gnl|CDD|212777 cd11843, SH3_PACSIN, Src homology 3 domain of Protein kinase C and
Casein kinase Substrate in Neurons (PACSIN) proteins.
PACSINs, also called Synaptic dynamin-associated
proteins (Syndapins), act as regulators of cytoskeletal
and membrane dynamics. They bind both dynamin and
Wiskott-Aldrich syndrome protein (WASP), and may provide
direct links between the actin cytoskeletal machinery
through WASP and dynamin-dependent endocytosis.
Vetebrates harbor three isoforms with distinct
expression patterns and specific functions. PACSINs
contain an N-terminal F-BAR domain and a C-terminal SH3
domain. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 40.5 bits (95), Expect = 6e-05
Identities = 17/51 (33%), Positives = 26/51 (50%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
V ALY ++ E +LS + G +++ E W +G VG P+NYV
Sbjct: 2 VRALYDYEGQESDELSFKAGDILTKLEEEDEQGWCKGRLDGRVGLYPANYV 52
>gnl|CDD|198233 cd10370, SH2_Src_Src42, Src homology 2 (SH2) domain found in the
Src oncogene at 42A (Src42). Src42 is a member of the
Src non-receptor type tyrosine kinase family of
proteins. The integration of receptor tyrosine
kinase-induced RAS and Src42 signals by Connector
eNhancer of KSR (CNK) as a two-component input is
essential for RAF activation in Drosophila. Src42 is
present in a wide variety of organisms including:
California sea hare, pea aphid, yellow fever mosquito,
honey bee, Panamanian leafcutter ant, and sea urchin.
Src42 has a unique N-terminal domain, an SH3 domain, an
SH2 domain, a kinase domain and a regulatory tail, as do
the other members of the family. Like the other members
of the Src family the SH2 domain in addition to binding
the target, also plays an autoinhibitory role by binding
to its C-terminal tail. In general SH2 domains are
involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 96
Score = 41.7 bits (98), Expect = 6e-05
Identities = 25/70 (35%), Positives = 39/70 (55%), Gaps = 5/70 (7%)
Query: 255 KAWYVGDMSRQRAES-ILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQN 312
+ WY G + R AE +L E++ G F++R+S S Y+LS+ VKHY I+Q
Sbjct: 3 EPWYFGKIKRIEAEKKLLLPENEHGAFLIRDSESRHNDYSLSVRDG---DTVKHYRIRQL 59
Query: 313 SRGEFFLSEK 322
G FF++ +
Sbjct: 60 DEGGFFIARR 69
Score = 34.8 bits (80), Expect = 0.017
Identities = 23/74 (31%), Positives = 41/74 (55%), Gaps = 4/74 (5%)
Query: 333 DKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVN 391
++ G F++R+S S Y+LS+ VKHY I+Q G FF++ + ++ E+V
Sbjct: 24 NEHGAFLIRDSESRHNDYSLSVRDG---DTVKHYRIRQLDEGGFFIARRTTFRTLQELVE 80
Query: 392 YHRHNSGGLASRLK 405
++ +S GL L+
Sbjct: 81 HYSKDSDGLCVNLR 94
>gnl|CDD|212820 cd11887, SH3_Bbc1, Src Homology 3 domain of Bbc1 and similar
domains. This subfamily is composed of Saccharomyces
cerevisiae Bbc1p, also called Mti1p (Myosin tail
region-interacting protein), and similar proteins. Bbc1p
interacts with and regulates type I myosins in yeast,
Myo3p and Myo5p, which are involved in actin
cytoskeletal reorganization. It also binds and inhibits
Las17, a WASp family protein that functions as an
activator of the Arp2/3 complex. Bbc1p contains an
N-terminal SH3 domain. SH3 domains bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs; they play a role in the
regulation of enzymes by intramolecular interactions,
changing the subcellular localization of signal pathway
components and mediate multiprotein complex assemblies.
Length = 60
Score = 40.4 bits (95), Expect = 6e-05
Identities = 18/60 (30%), Positives = 30/60 (50%), Gaps = 4/60 (6%)
Query: 125 PKVVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW--KVKDKNGSV--GYIPSNYVKE 180
P V ALYP+++ DL+ + G V ++ W+ + D NG+ G P N+V+
Sbjct: 1 PFKVKALYPYESDHEDDLNFDVGQLITVTEEEDADWYFGEYVDSNGNTKEGIFPKNFVEV 60
Score = 36.2 bits (84), Expect = 0.002
Identities = 19/61 (31%), Positives = 29/61 (47%), Gaps = 4/61 (6%)
Query: 72 PKVVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW--KVKDKNGIRKPDQMIRPKVVV 129
P V ALYP+++ DL+ + G V ++ W+ + D NG K + I PK V
Sbjct: 1 PFKVKALYPYESDHEDDLNFDVGQLITVTEEEDADWYFGEYVDSNGNTK--EGIFPKNFV 58
Query: 130 A 130
Sbjct: 59 E 59
>gnl|CDD|198207 cd10344, SH2_SLAP, Src homology 2 domain found in Src-like adaptor
proteins. SLAP belongs to the subfamily of adapter
proteins that negatively regulate cellular signaling
initiated by tyrosine kinases. It has a myristylated
N-terminus, SH3 and SH2 domains with high homology to
Src family tyrosine kinases, and a unique C-terminal
tail, which is important for c-Cbl binding. SLAP
negatively regulates platelet-derived growth factor
(PDGF)-induced mitogenesis in fibroblasts and regulates
F-actin assembly for dorsal ruffles formation. c-Cbl
mediated SLAP inhibition towards actin remodeling.
Moreover, SLAP enhanced PDGF-induced c-Cbl
phosphorylation by SFK. In contrast, SLAP mitogenic
inhibition was not mediated by c-Cbl, but it rather
involved a competitive mechanism with SFK for
PDGF-receptor (PDGFR) association and mitogenic
signaling. Accordingly, phosphorylation of the Src
mitogenic substrates Stat3 and Shc were reduced by SLAP.
Thus, we concluded that SLAP regulates PDGFR signaling
by two independent mechanisms: a competitive mechanism
for PDGF-induced Src mitogenic signaling and a
non-competitive mechanism for dorsal ruffles formation
mediated by c-Cbl. SLAP is a hematopoietic adaptor
containing Src homology (SH)3 and SH2 motifs and a
unique carboxy terminus. Unlike c-Src, SLAP lacks a
tyrosine kinase domain. Unlike c-Src, SLAP does not
impact resorptive function of mature osteoclasts but
induces their early apoptosis. SLAP negatively regulates
differentiation of osteoclasts and proliferation of
their precursors. Conversely, SLAP decreases osteoclast
death by inhibiting activation of caspase 3. In general
SH2 domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 104
Score = 41.7 bits (98), Expect = 6e-05
Identities = 23/68 (33%), Positives = 37/68 (54%), Gaps = 4/68 (5%)
Query: 257 WYVGDMSRQRAESILKQED-KEGCFVVRNSST-KGLYTLSLYTKVPHPH--VKHYHIKQN 312
W +SR++AE +L + G F++R S T +G Y+LS+ + VKHY I +
Sbjct: 12 WLFEGLSREKAEELLMLPGNQVGSFLIRESETRRGCYSLSVRHRGSQSRDSVKHYRIFRL 71
Query: 313 SRGEFFLS 320
G F++S
Sbjct: 72 DNGWFYIS 79
Score = 39.4 bits (92), Expect = 4e-04
Identities = 21/71 (29%), Positives = 40/71 (56%), Gaps = 3/71 (4%)
Query: 333 DKEGCFVVRNSST-KGLYTLSLYTKVPHPH--VKHYHIKQNSRGEFFLSEKHCCHSIPEV 389
++ G F++R S T +G Y+LS+ + VKHY I + G F++S + + ++
Sbjct: 31 NQVGSFLIRESETRRGCYSLSVRHRGSQSRDSVKHYRIFRLDNGWFYISPRLTFQCLEDM 90
Query: 390 VNYHRHNSGGL 400
VN++ ++ GL
Sbjct: 91 VNHYSESADGL 101
>gnl|CDD|198254 cd10391, SH2_SHE, Src homology 2 domain found in SH2
domain-containing adapter protein E (SHE). SHE is
expressed in heart, lung, brain, and skeletal muscle.
SHE contains two pTry protein binding domains, protein
interaction domain (PID) and a SH2 domain, followed by a
glycine-proline rich region, all of which are N-terminal
to the phosphotyrosine binding (PTB) domain. In general
SH2 domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 98
Score = 41.5 bits (97), Expect = 7e-05
Identities = 29/79 (36%), Positives = 41/79 (51%), Gaps = 6/79 (7%)
Query: 255 KAWYVGDMSRQRAESILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNS 313
+ WY G +SR AES L Q KE ++VRNS S Y+++L T H+ K N
Sbjct: 1 QPWYHGSISRAEAESRL-QPCKEASYLVRNSESGNSKYSIALKTSQGCVHIIVAQTKDN- 58
Query: 314 RGEFFLSEKHCC-HSIPEV 331
++ L++ SIPEV
Sbjct: 59 --KYTLNQTSAVFDSIPEV 75
Score = 30.3 bits (68), Expect = 0.56
Identities = 21/62 (33%), Positives = 33/62 (53%), Gaps = 5/62 (8%)
Query: 334 KEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFLSEKHCC-HSIPEVVN 391
KE ++VRNS S Y+++L T H+ K N ++ L++ SIPEVV+
Sbjct: 21 KEASYLVRNSESGNSKYSIALKTSQGCVHIIVAQTKDN---KYTLNQTSAVFDSIPEVVH 77
Query: 392 YH 393
Y+
Sbjct: 78 YY 79
>gnl|CDD|212879 cd11946, SH3_GRB2_N, N-terminal Src homology 3 domain of Growth
factor receptor-bound protein 2. GRB2 is a critical
signaling molecule that regulates the Ras pathway by
linking tyrosine kinases to the Ras guanine nucleotide
releasing protein Sos (son of sevenless), which converts
Ras to the active GTP-bound state. It is ubiquitously
expressed in all tissues throughout development and is
important in cell cycle progression, motility,
morphogenesis, and angiogenesis. In lymphocytes, GRB2 is
associated with antigen receptor signaling components.
GRB2 contains an N-terminal SH3 domain, a central SH2
domain, and a C-terminal SH3 domain. Its N-terminal SH3
domain binds to Sos and Sos-derived proline-rich
peptides. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 56
Score = 40.0 bits (93), Expect = 8e-05
Identities = 18/53 (33%), Positives = 31/53 (58%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKEK 181
+A Y FKA +LS ++G +V+++ + W + NG G+IP NY++ K
Sbjct: 4 IAKYDFKATADDELSFKRGDILKVLNEECDQNWYKAELNGKDGFIPKNYIEMK 56
>gnl|CDD|198178 cd09923, SH2_SOCS_family, Src homology 2 (SH2) domain found in
suppressor of cytokine signaling (SOCS) family. SH2
domain found in SOCS proteins. SOCS was first recognized
as a group of cytokine-inducible SH2 (CIS) domain
proteins comprising eight family members in human (CIS
and SOCS1-SOCS7). In addition to the SH2 domain, SOCS
proteins have a variable N-terminal domain and a
conserved SOCS box in the C-terminal domain. SOCS
proteins bind to a substrate via their SH2 domain. The
prototypical members, CIS and SOCS1-SOCS3, have been
shown to regulate growth hormone signaling in vitro and
in a classic negative feedback response compete for
binding at phosphotyrosine sites in JAK kinase and
receptor pathways to displace effector proteins and
target bound receptors for proteasomal degradation. Loss
of SOCS activity results in excessive cytokine signaling
associated with a variety of hematopoietic, autoimmune,
and inflammatory diseases and certain cancers. Members
(SOCS4-SOCS7) were identified by their conserved SOCS
box, an adapter motif of 3 helices that associates
substrate binding domains, such as the SOCS SH2 domain,
ankryin, and WD40 with ubiquitin ligase components.
These show limited cytokine induction. In general SH2
domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 81
Score = 40.6 bits (96), Expect = 9e-05
Identities = 17/42 (40%), Positives = 26/42 (61%), Gaps = 2/42 (4%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSSTKG-LYTLSLYT 297
WY G ++R AE +L + EG F+VR+SS L+++S T
Sbjct: 2 WYWGGITRYEAEELLAGK-PEGTFLVRDSSDSRYLFSVSFRT 42
>gnl|CDD|212792 cd11858, SH3_Myosin-I_fungi, Src homology 3 domain of Type I fungal
Myosins. Type I myosins (myosin-I) are actin-dependent
motors in endocytic actin structures and actin patches.
They play roles in membrane traffic in endocytic and
secretory pathways, cell motility, and mechanosensing.
Saccharomyces cerevisiae has two myosins-I, Myo3 and
Myo5, which are involved in endocytosis and the
polarization of the actin cytoskeleton. Myosin-I
contains an N-terminal actin-activated ATPase, a
phospholipid-binding TH1 (tail homology 1) domain, and a
C-terminal extension which includes an F-actin-binding
TH2 domain, an SH3 domain, and an acidic peptide that
participates in activating the Arp2/3complex. The SH3
domain of myosin-I is required for myosin-I-induced
actin polymerization. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 40.1 bits (94), Expect = 9e-05
Identities = 16/52 (30%), Positives = 26/52 (50%), Gaps = 1/52 (1%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSV-GYIPSNYVKE 180
ALY F +LSL+K ++ WW K + S G++P+ Y++E
Sbjct: 4 ALYDFAGSVANELSLKKDDIVYIVQKEDNGWWLAKKLDESKEGWVPAAYLEE 55
Score = 28.5 bits (64), Expect = 1.1
Identities = 11/36 (30%), Positives = 15/36 (41%)
Query: 77 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKD 112
ALY F +LSL+K ++ WW K
Sbjct: 4 ALYDFAGSVANELSLKKDDIVYIVQKEDNGWWLAKK 39
>gnl|CDD|173631 cd05045, PTKc_RET, Catalytic domain of the Protein Tyrosine Kinase,
REarranged during Transfection protein. Protein
Tyrosine Kinase (PTK) family; RET (REarranged during
Transfection) protein; catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. RET is a
receptor tyr kinase (RTK) containing an extracellular
region with four cadherin-like repeats, a
calcium-binding site, and a cysteine-rich domain, a
transmembrane segment, and an intracellular catalytic
domain. It is part of a multisubunit complex that binds
glial-derived neurotropic factor (GDNF) family ligands
(GFLs) including GDNF, neurturin, artemin, and
persephin. GFLs bind RET along with four GPI-anchored
coreceptors, bringing two RET molecules together,
leading to autophosphorylation, activation, and
intracellular signaling. RET is essential for the
development of the sympathetic, parasympathetic and
enteric nervous systems, and the kidney. RET disruption
by germline mutations causes diseases in humans
including congenital aganglionosis of the
gastrointestinal tract (Hirschsprung's disease) and
three related inherited cancers: multiple endocrine
neoplasia type 2A (MEN2A), MEN2B, and familial medullary
thyroid carcinoma (FMTC).
Length = 290
Score = 44.2 bits (104), Expect = 9e-05
Identities = 23/86 (26%), Positives = 49/86 (56%), Gaps = 10/86 (11%)
Query: 431 LMLLEELGSGQFGVVRRG---KWRG-----SIDVAMMKEGTMSED--DFIEEAKVMTRLQ 480
L+L + LG G+FG V + + +G ++ V M+KE S + D + E ++ ++
Sbjct: 2 LVLGKTLGEGEFGKVVKATAFRLKGRAGYTTVAVKMLKENASSSELRDLLSEFNLLKQVN 61
Query: 481 HQNLVQLYGVCSKHRPIYIVTDTSSF 506
H ++++LYG CS+ P+ ++ + + +
Sbjct: 62 HPHVIKLYGACSQDGPLLLIVEYAKY 87
Score = 43.8 bits (103), Expect = 1e-04
Identities = 16/47 (34%), Positives = 32/47 (68%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
++++SDVW++GVL+WE+ T G PY + + + ++ G +E+P+
Sbjct: 206 YTTQSDVWSFGVLLWEIVTLGGNPYPGIAPERLFNLLKTGYRMERPE 252
Score = 32.6 bits (74), Expect = 0.42
Identities = 9/28 (32%), Positives = 15/28 (53%)
Query: 20 NVGLLLDMCIQVCKGMAYLERHNYIHRE 47
+G L+ Q+ +GM YL +HR+
Sbjct: 125 TMGDLISFAWQISRGMQYLAEMKLVHRD 152
>gnl|CDD|133217 cd05086, PTKc_Aatyk2, Catalytic domain of the Protein Tyrosine
Kinase, Apoptosis-associated tyrosine kinase 2. Protein
Tyrosine Kinase (PTK) family; Apoptosis-associated
tyrosine kinase 2 (Aatyk2); catalytic (c) domain. The
PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Aatyk2 is
a member of the Aatyk subfamily of proteins, which are
receptor kinases containing a transmembrane segment and
a long C-terminal cytoplasmic tail with a catalytic
domain. Aatyk2 is also called lemur tyrosine kinase 2
(Lmtk2) or brain-enriched kinase (Brek). It is expressed
at high levels in early postnatal brain, and has been
shown to play a role in nerve growth factor (NGF)
signaling. Studies with knockout mice reveal that Aatyk2
is essential for late stage spermatogenesis. Although it
is classified as a tyr kinase based on sequence
similarity and the phylogenetic tree, Aatyk2 has been
characterized as a serine/threonine kinase.
Length = 268
Score = 43.7 bits (103), Expect = 1e-04
Identities = 30/95 (31%), Positives = 44/95 (46%), Gaps = 5/95 (5%)
Query: 166 KNGSVGYIPSNYVKEKELLGLQKYDDVNGLTLELI---HQVLNYTRFSSKSDVWAYGVLM 222
K G G PS Y ++ K + L EL+ H L + S+VWA GV +
Sbjct: 139 KVGDYGIGPSRYKEDYIETEDDKCVPLRWLAPELVGEFHGGLITAEQTKPSNVWALGVTL 198
Query: 223 WEVFTCGKMPYGRLKNTEVVDRV--QRGIILEKPK 255
WE+F PY L + EV++ V + + L KP+
Sbjct: 199 WELFENAAQPYSHLSDREVLNHVIKDQQVKLFKPQ 233
Score = 31.8 bits (72), Expect = 0.71
Identities = 20/73 (27%), Positives = 37/73 (50%), Gaps = 7/73 (9%)
Query: 435 EELGSGQFGVVRRGKWRGSIDVA--MMKE-----GTMSEDDFIEEAKVMTRLQHQNLVQL 487
+E+G+G FG V + VA ++KE + +++F+++ LQH N++Q
Sbjct: 1 QEIGNGWFGKVLLSEIYTDTGVARVVVKELKANASSKEQNEFLQQGDPYRILQHPNILQC 60
Query: 488 YGVCSKHRPIYIV 500
G C + P +V
Sbjct: 61 LGQCVEAIPYLLV 73
Score = 30.6 bits (69), Expect = 1.8
Identities = 12/45 (26%), Positives = 25/45 (55%), Gaps = 1/45 (2%)
Query: 4 GSLLNYLRRHENTLGGNVGLLLD-MCIQVCKGMAYLERHNYIHRE 47
G L +YL + + + LLL M ++ G+ ++ +HN++H +
Sbjct: 80 GDLKSYLSQEQWHRRNSQLLLLQRMACEIAAGVTHMHKHNFLHSD 124
>gnl|CDD|212835 cd11902, SH3_Nck2_2, Second Src Homology 3 domain of Nck2 adaptor
protein. Nck2 (also called Nckbeta or Growth factor
receptor-bound protein 4, Grb4) plays a crucial role in
connecting signaling pathways of tyrosine kinase
receptors and important effectors in actin dynamics and
cytoskeletal remodeling. It binds neuronal signaling
proteins such as ephrinB and Disabled-1 (Dab-1)
exclusively. Nck adaptor proteins regulate actin
cytoskeleton dynamics by linking proline-rich effector
molecules to protein tyrosine kinases and phosphorylated
signaling intermediates. They contain three SH3 domains
and a C-terminal SH2 domain. They function downstream of
the PDGFbeta receptor and are involved in Rho GTPase
signaling and actin dynamics. Vertebrates contain two
Nck adaptor proteins: Nck1 (also called Nckalpha) and
Nck2, which show partly overlapping functions but also
bind distinct targets. The second SH3 domain of Nck
appears to prefer ligands containing the APxxPxR motif.
SH3 domains are protein interaction domains that usually
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially a PxxP motif. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 39.6 bits (92), Expect = 1e-04
Identities = 18/41 (43%), Positives = 26/41 (63%), Gaps = 1/41 (2%)
Query: 141 DLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKEK 181
+LSL KG+ VM+ + WW+ NG +G+ PSNYV E+
Sbjct: 16 ELSLVKGSRVTVMEKCSDGWWR-GSYNGQIGWFPSNYVVEE 55
>gnl|CDD|212709 cd11775, SH3_Sla1p_3, Third Src Homology 3 domain of the fungal
endocytic adaptor protein Sla1p. Sla1p facilitates
endocytosis by playing a role as an adaptor protein in
coupling components of the actin cytoskeleton to the
endocytic machinery. It interacts with Abp1p, Las17p and
Pan1p, which are activator proteins of actin-related
protein 2/3 (Arp2/3). Sla1p contains multiple domains
including three SH3 domains, a SAM (sterile alpha motif)
domain, and a Sla1 homology domain 1 (SHD1), which binds
to the NPFXD motif that is found in many integral
membrane proteins such as the Golgi-localized
Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and
Dnf1p. The third SH3 domain of Sla1p can bind ubiquitin
while retaining the ability to bind proline-rich
ligands; monoubiquitination of target proteins signals
internalization and sorting through the endocytic
pathway. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 57
Score = 39.6 bits (93), Expect = 1e-04
Identities = 17/57 (29%), Positives = 32/57 (56%), Gaps = 4/57 (7%)
Query: 126 KVVVALYPFKAIEGGD-LSLEKGAEYEVMDDTQEH-WWKVKD-KNGSVGYIPSNYVK 179
K LY F A + D L++++G ++DD + WW V++ G G +P++Y++
Sbjct: 1 KRGKVLYDFDA-QSDDELTVKEGDVVYILDDKKSKDWWMVENVSTGKEGVVPASYIE 56
Score = 28.4 bits (64), Expect = 1.3
Identities = 13/42 (30%), Positives = 23/42 (54%), Gaps = 3/42 (7%)
Query: 73 KVVVALYPFKAIEGGD-LSLEKGAEYEVMDDTQEH-WWKVKD 112
K LY F A + D L++++G ++DD + WW V++
Sbjct: 1 KRGKVLYDFDA-QSDDELTVKEGDVVYILDDKKSKDWWMVEN 41
>gnl|CDD|212742 cd11808, SH3_Alpha_Spectrin, Src homology 3 domain of Alpha
Spectrin. Spectrin is a major structural component of
the red blood cell membrane skeleton and is important in
erythropoiesis and membrane biogenesis. It is a
flexible, rope-like molecule composed of two subunits,
alpha and beta, which consist of many spectrin-type
repeats. Alpha and beta spectrin associate to form
heterodimers and tetramers; spectrin tetramer formation
is critical for red cell shape and deformability.
Defects in alpha spectrin have been associated with
inherited hemolytic anemias including hereditary
spherocytosis (HSp), hereditary elliptocytosis (HE), and
hereditary pyropoikilocytosis (HPP). Alpha spectrin
contains a middle SH3 domain and a C-terminal EF-hand
binding motif in addition to multiple spectrin repeats.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 39.8 bits (93), Expect = 1e-04
Identities = 18/53 (33%), Positives = 33/53 (62%), Gaps = 1/53 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
VVALY ++ ++S++KG +++ + + WWKV + N G++P+ YVK
Sbjct: 1 CVVALYDYQEKSPREVSMKKGDILTLLNSSNKDWWKV-EVNDRQGFVPAAYVK 52
Score = 29.8 bits (67), Expect = 0.34
Identities = 14/44 (31%), Positives = 27/44 (61%), Gaps = 2/44 (4%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK--DKNG 115
VVALY ++ ++S++KG +++ + + WWKV+ D+ G
Sbjct: 1 CVVALYDYQEKSPREVSMKKGDILTLLNSSNKDWWKVEVNDRQG 44
>gnl|CDD|212821 cd11888, SH3_ARHGAP9_like, Src Homology 3 domain of Rho
GTPase-activating protein 9 and similar proteins. This
subfamily is composed of Rho GTPase-activating proteins
including mammalian ARHGAP9, and vertebrate ARHGAPs 12
and 27. RhoGAPs (or ARHGAPs) bind to Rho proteins and
enhance the hydrolysis rates of bound GTP. ARHGAP9
functions as a GAP for Rac and Cdc42, but not for RhoA.
It negatively regulates cell migration and adhesion. It
also acts as a docking protein for the MAP kinases Erk2
and p38alpha, and may facilitate cross-talk between the
Rho GTPase and MAPK pathways to control actin
remodeling. ARHGAP27, also called CAMGAP1, shows GAP
activity towards Rac1 and Cdc42. It binds the adaptor
protein CIN85 and may play a role in clathrin-mediated
endocytosis. ARHGAP12 has been shown to display GAP
activity towards Rac1. It plays a role in regulating
HFG-driven cell growth and invasiveness. ARHGAPs in this
subfamily contain SH3, WW, Pleckstin homology (PH), and
RhoGAP domains. SH3 domains bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs; they play a role in the regulation of
enzymes by intramolecular interactions, changing the
subcellular localization of signal pathway components
and mediate multiprotein complex assemblies.
Length = 54
Score = 39.7 bits (93), Expect = 1e-04
Identities = 15/54 (27%), Positives = 30/54 (55%), Gaps = 3/54 (5%)
Query: 127 VVVALYPF--KAIEGGDLSLEKGAEYEVMDDTQEHWWKVK-DKNGSVGYIPSNY 177
VV LYPF +G +S+++G + ++ + + WW+V+ + Y+P+ Y
Sbjct: 1 YVVVLYPFEYTGKDGRKVSIKEGERFLLLKKSNDDWWQVRRPGDSKPFYVPAQY 54
Score = 36.6 bits (85), Expect = 0.001
Identities = 15/48 (31%), Positives = 28/48 (58%), Gaps = 3/48 (6%)
Query: 74 VVVALYPF--KAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGIRKP 119
VV LYPF +G +S+++G + ++ + + WW+V+ + G KP
Sbjct: 1 YVVVLYPFEYTGKDGRKVSIKEGERFLLLKKSNDDWWQVR-RPGDSKP 47
>gnl|CDD|212711 cd11777, SH3_CIP4_Bzz1_like, Src Homology 3 domain of
Cdc42-Interacting Protein 4, Bzz1 and similar domains.
This subfamily is composed of Cdc42-Interacting Protein
4 (CIP4) and similar proteins such as Formin Binding
Protein 17 (FBP17) and FormiN Binding Protein 1-Like
(FNBP1L), as well as yeast Bzz1 (or Bzz1p). CIP4 and
FNBP1L are Cdc42 effectors that bind Wiskott-Aldrich
syndrome protein (WASP) and function in endocytosis.
CIP4 and FBP17 bind to the Fas ligand and may be
implicated in the inflammatory response. CIP4 may also
play a role in phagocytosis. Bzz1 is also a
WASP/Las17-interacting protein involved in endocytosis
and trafficking to the vacuole. It physically interacts
with type I myosins and functions in the early steps of
endocytosis. Members of this subfamily contain an
N-terminal F-BAR (FES-CIP4 Homology and
Bin/Amphiphysin/Rvs) domain as well as at least one
C-terminal SH3 domain. Bzz1 contains a second SH3 domain
at the C-terminus. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 39.5 bits (92), Expect = 1e-04
Identities = 15/52 (28%), Positives = 30/52 (57%), Gaps = 1/52 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVM-DDTQEHWWKVKDKNGSVGYIPSNYVK 179
ALY F G +S+ +G + ++ +D + W +V+ G GY+P++Y++
Sbjct: 3 KALYAFVGSSEGTISMTEGEKLSLVEEDKGDGWTRVRRDTGEEGYVPTSYIR 54
>gnl|CDD|198227 cd10364, SH2_Src_Lyn, Src homology 2 (SH2) domain found in Lyn.
Lyn is a member of the Src non-receptor type tyrosine
kinase family of proteins and is expressed in the
hematopoietic cells, in neural tissues, liver, and
adipose tissue. There are two alternatively spliced
forms of Lyn. Lyn plays an inhibitory role in myeloid
lineage proliferation. Following engagement of the B
cell receptors, Lyn undergoes rapid phosphorylation and
activation, triggering a cascade of signaling events
mediated by Lyn phosphorylation of tyrosine residues
within the immunoreceptor tyrosine-based activation
motifs (ITAM) of the receptor proteins, and subsequent
recruitment and activation of other kinases including
Syk, phospholipase C2 (PLC2) and phosphatidyl inositol-3
kinase. These kinases play critical roles in
proliferation, Ca2+ mobilization and cell
differentiation. Lyn plays an essential role in the
transmission of inhibitory signals through
phosphorylation of tyrosine residues within the
immunoreceptor tyrosine-based inhibitory motifs (ITIM)
in regulatory proteins such as CD22, PIR-B and FC RIIb1.
Their ITIM phosphorylation subsequently leads to
recruitment and activation of phosphatases such as
SHIP-1 and SHP-1 which further down modulate signaling
pathways, attenuate cell activation and can mediate
tolerance. Lyn also plays a role in the insulin
signaling pathway. Activated Lyn phosphorylates insulin
receptor substrate 1 (IRS1) leading to an increase in
translocation of Glut-4 to the cell membrane and
increased glucose utilization. It is the primary Src
family member involved in signaling downstream of the B
cell receptor. Lyn plays an unusual, 2-fold role in B
cell receptor signaling; it is essential for initiation
of signaling but is also later involved in negative
regulation of the signal. Lyn has a unique N-terminal
domain, an SH3 domain, an SH2 domain, a kinase domain
and a regulatory tail, as do the other members of the
family. In general SH2 domains are involved in signal
transduction. They typically bind pTyr-containing
ligands via two surface pockets, a pTyr and hydrophobic
binding pocket, allowing proteins with SH2 domains to
localize to tyrosine phosphorylated sites.
Length = 101
Score = 40.7 bits (95), Expect = 1e-04
Identities = 23/70 (32%), Positives = 39/70 (55%), Gaps = 4/70 (5%)
Query: 257 WYVGDMSRQRAE-SILKQEDKEGCFVVRNSST-KGLYTLSLYTKVPHPH--VKHYHIKQN 312
W+ D++R+ AE +L + G F++R S T KG Y+LS+ P +KHY I+
Sbjct: 5 WFFKDITRKDAERQLLAPGNSAGAFLIRESETLKGSYSLSVRDYDPQHGDVIKHYKIRSL 64
Query: 313 SRGEFFLSEK 322
G +++S +
Sbjct: 65 DNGGYYISPR 74
Score = 39.6 bits (92), Expect = 4e-04
Identities = 23/76 (30%), Positives = 41/76 (53%), Gaps = 3/76 (3%)
Query: 333 DKEGCFVVRNSST-KGLYTLSLYTKVPHPH--VKHYHIKQNSRGEFFLSEKHCCHSIPEV 389
+ G F++R S T KG Y+LS+ P +KHY I+ G +++S + I ++
Sbjct: 24 NSAGAFLIRESETLKGSYSLSVRDYDPQHGDVIKHYKIRSLDNGGYYISPRITFPCISDM 83
Query: 390 VNYHRHNSGGLASRLK 405
+ +++ S GL RL+
Sbjct: 84 IKHYQKQSDGLCRRLE 99
>gnl|CDD|212925 cd11992, SH3_Intersectin2_3, Third Src homology 3 domain (or SH3C)
of Intersectin-2. Intersectin-2 (ITSN2) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN2 also functions as a specific GEF for Cdc42
activation in epithelial morphogenesis, and is required
in mitotic spindle orientation. It exists in
alternatively spliced short and long isoforms. The short
isoform contains two Eps15 homology domains (EH1 and
EH2), a coiled-coil region and five SH3 domains
(SH3A-E), while the long isoform, in addition, contains
RhoGEF (also called Dbl-homologous or DH), Pleckstrin
homology (PH) and C2 domains. The third SH3 domain
(SH3C) of ITSN2 has been shown to bind the K15 protein
of Kaposi's sarcoma-associated herpesvirus. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 52
Score = 39.2 bits (91), Expect = 1e-04
Identities = 21/53 (39%), Positives = 30/53 (56%), Gaps = 6/53 (11%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW--KVKDKNGSVGYIPSNYVK 179
+ALYP+ + E GDL+ +G E V E WW ++D+ G PSNYV+
Sbjct: 3 IALYPYSSSEPGDLTFNEGEEILVTQKDGE-WWTGSIEDRT---GIFPSNYVR 51
Score = 36.1 bits (83), Expect = 0.002
Identities = 20/52 (38%), Positives = 29/52 (55%), Gaps = 4/52 (7%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW--KVKDKNGIRKPDQMIRP 125
+ALYP+ + E GDL+ +G E V E WW ++D+ GI P +RP
Sbjct: 3 IALYPYSSSEPGDLTFNEGEEILVTQKDGE-WWTGSIEDRTGIF-PSNYVRP 52
>gnl|CDD|212834 cd11901, SH3_Nck1_2, Second Src Homology 3 domain of Nck1 adaptor
protein. Nck1 (also called Nckalpha) plays a crucial
role in connecting signaling pathways of tyrosine kinase
receptors and important effectors in actin dynamics and
cytoskeletal remodeling. It binds and activates RasGAP,
resulting in the downregulation of Ras. It is also
involved in the signaling of endothilin-mediated
inhibition of cell migration. Nck adaptor proteins
regulate actin cytoskeleton dynamics by linking
proline-rich effector molecules to protein tyrosine
kinases and phosphorylated signaling intermediates. They
contain three SH3 domains and a C-terminal SH2 domain.
They function downstream of the PDGFbeta receptor and
are involved in Rho GTPase signaling and actin dynamics.
Vertebrates contain two Nck adaptor proteins: Nck1 (also
called Nckalpha) and Nck2, which show partly overlapping
functions but also bind distinct targets. The second SH3
domain of Nck appears to prefer ligands containing the
APxxPxR motif. SH3 domains are protein interaction
domains that usually bind to proline-rich ligands with
moderate affinity and selectivity, preferentially a PxxP
motif. They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 39.2 bits (91), Expect = 1e-04
Identities = 19/40 (47%), Positives = 25/40 (62%), Gaps = 1/40 (2%)
Query: 141 DLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
+LSL KG + VM+ + WW+ NG VG+ PSNYV E
Sbjct: 17 ELSLVKGTKVIVMEKCSDGWWR-GSYNGQVGWFPSNYVTE 55
>gnl|CDD|198181 cd09927, SH2_Tensin_like, Src homology 2 domain found in
Tensin-like proteins. SH2 domain found in Tensin-like
proteins. The Tensins are a family of intracellular
proteins that interact with receptor tyrosine kinases
(RTKs), integrins, and actin. They are thought act as
signaling bridges between the extracellular space and
the cytoskeleton. There are four homologues: Tensin1,
Tensin2 (TENC1, C1-TEN), Tensin3 and Tensin4 (cten), all
of which contain a C-terminal tandem SH2-PTB domain
pairing, as well as actin-binding regions that may
localize them to focal adhesions. The isoforms of
Tensin2 and Tensin3 contain N-terminal C1 domains, which
are atypical and not expected to bind to phorbol esters.
Tensins 1-3 contain a phosphatase (PTPase) and C2 domain
pairing which resembles PTEN (phosphatase and tensin
homologue deleted on chromosome 10) protein. PTEN is a
lipid phosphatase that dephosphorylates
phosphatidylinositol 3,4,5-trisphosphate
(PtdIns(3,4,5)P3) to yield phosphatidylinositol
4,5-bisphosphate (PtdIns(4,5)P2). As PtdIns(3,4,5)P3 is
the product of phosphatidylinositol 3-kinase (PI3K)
activity, PTEN is therefore a key negative regulator of
the PI3K pathway. Because of their PTEN-like domains,
the Tensins may also possess phosphoinositide-binding or
phosphatase capabilities. However, only Tensin2 and
Tensin3 have the potential to be phosphatases since only
their PTPase domains contain a cysteine residue that is
essential for catalytic activity. In general SH2 domains
are involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 116
Score = 40.9 bits (96), Expect = 2e-04
Identities = 26/71 (36%), Positives = 39/71 (54%), Gaps = 5/71 (7%)
Query: 255 KAWYVGDMSRQRAESILKQEDKEGCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHIKQNS 313
K WY ++SR +A ++LK + G F+VR+S+T KG Y L++ P P V + K +
Sbjct: 3 KYWYKPNISRDQAIALLKDK-PPGTFLVRDSTTYKGAYGLAVKVATPPPGVNPFEAKGDP 61
Query: 314 RGEF---FLSE 321
E FL E
Sbjct: 62 ESELVRHFLIE 72
>gnl|CDD|212753 cd11819, SH3_Cortactin_like, Src homology 3 domain of Cortactin and
related proteins. This subfamily includes cortactin,
Abp1 (actin-binding protein 1), hematopoietic lineage
cell-specific protein 1 (HS1), and similar proteins.
These proteins are involved in regulating actin dynamics
through direct or indirect interaction with the Arp2/3
complex, which is required to initiate actin
polymerization. They all contain at least one C-terminal
SH3 domain. Cortactin and HS1 bind Arp2/3 and actin
through an N-terminal region that contains an acidic
domain and several copies of a repeat domain found in
cortactin and HS1. Abp1 binds actin via an N-terminal
actin-depolymerizing factor (ADF) homology domain. Yeast
Abp1 binds Arp2/3 directly through two acidic domains.
Mammalian Abp1 does not directly interact with Arp2/3;
instead, it regulates actin dynamics indirectly by
interacting with dynamin and WASP family proteins. The
C-terminal region of these proteins acts as an adaptor
or scaffold that can connect membrane trafficking and
signaling proteins that bind the SH3 domain within the
actin network. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 39.2 bits (92), Expect = 2e-04
Identities = 16/51 (31%), Positives = 26/51 (50%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
ALY ++A E ++S +G ++ E WW + G G P+NYV+
Sbjct: 3 KALYDYQAAEDNEISFVEGDIITQIEQIDEGWWLGVNAKGQKGLFPANYVE 53
>gnl|CDD|212957 cd12024, SH3_NoxO1_2, Second or C-terminal Src homology 3 domain of
NADPH oxidase (Nox) Organizing protein 1. Nox
Organizing protein 1 (NoxO1) is a critical regulator of
enzyme kinetics of the nonphagocytic NADPH oxidase Nox1,
which catalyzes the transfer of electrons from NADPH to
molecular oxygen to form superoxide. Nox1 is expressed
in colon, stomach, uterus, prostate, and vascular smooth
muscle cells. NoxO1 is involved in targeting activator
subunits (such as NoxA1) to Nox1. It is co-localized
with Nox1 in the membranes of resting cells and directs
the subcellular localization of Nox1. NoxO1 contains an
N-terminal Phox homology (PX) domain, tandem SH3 domains
(N-SH3 and C-SH3), and a C-terminal proline-rich region
(PRR). This model characterizes the second SH3 domain
(or C-SH3) of NoxO1. The tandem SH3 domains of NoxO1
interact with the PRR of p22phox, which also complexes
with Nox1. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 38.9 bits (91), Expect = 2e-04
Identities = 16/51 (31%), Positives = 28/51 (54%), Gaps = 1/51 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
A ++A + +LS+ G EV+ + WW ++ NG GY+PS Y++
Sbjct: 3 YATRAYEAQKEDELSVPAGVVVEVLQKSDNGWWLIR-YNGRAGYVPSMYLQ 52
Score = 27.7 bits (62), Expect = 1.8
Identities = 12/52 (23%), Positives = 24/52 (46%), Gaps = 3/52 (5%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK--DKNGIRKPDQMIRP 125
A ++A + +LS+ G EV+ + WW ++ + G P ++P
Sbjct: 3 YATRAYEAQKEDELSVPAGVVVEVLQKSDNGWWLIRYNGRAGYV-PSMYLQP 53
>gnl|CDD|212884 cd11951, SH3_GRAP_C, C-terminal Src homology 3 domain of
GRB2-related adaptor protein. GRAP is a GRB-2 like
adaptor protein that is highly expressed in lymphoid
tissues. It acts as a negative regulator of T cell
receptor (TCR)-induced lymphocyte proliferation by
downregulating the signaling to the Ras/ERK pathway. It
has been identified as a regulator of TGFbeta signaling
in diabetic kidney tubules and may have a role in the
pathogenesis of the disease. GRAP contains an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. The C-terminal SH3 domains (SH3c) of the related
proteins, GRB2 and GRAP2, have been shown to bind to
classical PxxP motif ligands, as well as to
non-classical motifs. GRB2 SH3c binds Gab2
(Grb2-associated binder 2) through epitopes containing
RxxK motifs, while the SH3c of GRAP2 binds to the
phosphatase-like protein HD-PTP via a RxxxxK motif. SH3
domains are protein interaction domains that typically
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 39.0 bits (91), Expect = 2e-04
Identities = 20/51 (39%), Positives = 28/51 (54%), Gaps = 1/51 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
V A Y F A + LS +G EV+D +WW+ + +G VG+ P NYV
Sbjct: 2 VQAQYDFSAEDPSQLSFRRGDIIEVLDCPDPNWWRGR-ISGRVGFFPRNYV 51
Score = 29.4 bits (66), Expect = 0.57
Identities = 13/35 (37%), Positives = 18/35 (51%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK 109
V A Y F A + LS +G EV+D +WW+
Sbjct: 2 VQAQYDFSAEDPSQLSFRRGDIIEVLDCPDPNWWR 36
>gnl|CDD|173644 cd05079, PTKc_Jak1_rpt2, Catalytic (repeat 2) domain of the Protein
Tyrosine Kinase, Janus kinase 1. Protein Tyrosine
Kinase (PTK) family; Janus kinase 1 (Jak1); catalytic
(c) domain (repeat 2). The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Jak1 is a member of the
Janus kinase (Jak) subfamily of proteins, which are
cytoplasmic (or nonreceptor) tyr kinases containing an
N-terminal FERM domain, followed by a Src homology 2
(SH2) domain, a pseudokinase domain, and a C-terminal
tyr kinase domain. Jaks are crucial for cytokine
receptor signaling. They are activated by
autophosphorylation upon cytokine-induced receptor
aggregation, and subsequently trigger downstream
signaling events such as the phosphorylation of signal
transducers and activators of transcription (STATs).
Jak1 is widely expressed in many tissues. Many cytokines
are dependent on Jak1 for signaling, including those
that use the shared receptor subunits common gamma chain
(IL-2, IL-4, IL-7, IL-9, IL-15, IL-21) and gp130 (IL-6,
IL-11, oncostatin M, G-CSF, and IFNs, among others). The
many varied interactions of Jak1 and its ubiquitous
expression suggest many biological roles. Jak1 is
important in neurological development, as well as in
lymphoid development and function. It also plays a role
in the pathophysiology of cardiac hypertrophy and heart
failure. A mutation in the ATP-binding site of Jak1 was
identified in a human uterine leiomyosarcoma cell line,
resulting in defective cytokine induction and antigen
presentation, thus allowing the tumor to evade the
immune system.
Length = 284
Score = 43.0 bits (101), Expect = 2e-04
Identities = 19/44 (43%), Positives = 27/44 (61%), Gaps = 2/44 (4%)
Query: 4 GSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
GSL YL R++N + N+ L +Q+CKGM YL Y+HR+
Sbjct: 93 GSLKEYLPRNKNKI--NLKQQLKYAVQICKGMDYLGSRQYVHRD 134
Score = 29.1 bits (65), Expect = 5.9
Identities = 12/38 (31%), Positives = 22/38 (57%)
Query: 190 DDVNGLTLELIHQVLNYTRFSSKSDVWAYGVLMWEVFT 227
DD++ + L ++F SDVW++GV ++E+ T
Sbjct: 170 DDLDSPVFWYAPECLIQSKFYIASDVWSFGVTLYELLT 207
Score = 28.4 bits (63), Expect = 9.5
Identities = 19/72 (26%), Positives = 34/72 (47%), Gaps = 9/72 (12%)
Query: 431 LMLLEELGSGQFGVVR------RGKWRGS-IDVAMMKEGTMSE--DDFIEEAKVMTRLQH 481
L + +LG G FG V G G + V +K + D +E +++ L H
Sbjct: 6 LKRIRDLGEGHFGKVELCRYDPEGDNTGEQVAVKSLKPESGGNHIADLKKEIEILRNLYH 65
Query: 482 QNLVQLYGVCSK 493
+N+V+ G+C++
Sbjct: 66 ENIVKYKGICTE 77
>gnl|CDD|212806 cd11873, SH3_CD2AP-like_1, First Src Homology 3 domain (SH3A) of
CD2-associated protein and similar proteins. This
subfamily is composed of the first SH3 domain (SH3A) of
CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and
similar domains. CD2AP and CIN85 are adaptor proteins
that bind to protein partners and assemble complexes
that have been implicated in T cell activation, kidney
function, and apoptosis of neuronal cells. They also
associate with endocytic proteins, actin cytoskeleton
components, and other adaptor proteins involved in
receptor tyrosine kinase (RTK) signaling. CD2AP and the
main isoform of CIN85 contain three SH3 domains, a
proline-rich region, and a C-terminal coiled-coil
domain. All of these domains enable CD2AP and CIN85 to
bind various protein partners and assemble complexes
that have been implicated in many different functions.
SH3A of both proteins bind to an atypical PXXXPR motif
at the C-terminus of Cbl and the cytoplasmic domain of
the cell adhesion protein CD2. CIN85 SH3A binds to
internal proline-rich motifs within the proline-rich
region; this intramolecular interaction serves as a
regulatory mechanism to keep CIN85 in a closed
conformation, preventing the recruitment of other
proteins. CIN85 SH3A has also been shown to bind
ubiquitin. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 38.8 bits (91), Expect = 2e-04
Identities = 16/53 (30%), Positives = 26/53 (49%), Gaps = 1/53 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
V+ + + A E +L+L+ G + +E WW+ NG G P N+VK
Sbjct: 2 VIVEFDYDAEEPDELTLKVGDIITNVKKMEEGWWE-GTLNGKRGMFPDNFVKV 53
Score = 28.0 bits (63), Expect = 1.7
Identities = 14/52 (26%), Positives = 25/52 (48%), Gaps = 3/52 (5%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGIRK--PDQMIR 124
V+ + + A E +L+L+ G + +E WW+ NG R PD ++
Sbjct: 2 VIVEFDYDAEEPDELTLKVGDIITNVKKMEEGWWE-GTLNGKRGMFPDNFVK 52
>gnl|CDD|198223 cd10360, SH2_Srm, Src homology 2 (SH2) domain found in Src-related
kinase lacking C-terminal regulatory tyrosine and
N-terminal myristoylation sites (srm). Srm is a
nonreceptor protein kinase that has two SH2 domains, a
SH3 domain, and a kinase domain with a tyrosine residue
for autophosphorylation. However it lacks an N-terminal
glycine for myristoylation and a C-terminal tyrosine
which suppresses kinase activity when phosphorylated.
Srm is most similar to members of the Tec family who
other members include: Tec, Btk/Emb, and Itk/Tsk/Emt.
However Srm differs in its N-terminal unique domain it
being much smaller than in the Tec family and is closer
to Src. Srm is thought to be a new family of nonreceptor
tyrosine kinases that may be redundant in function. In
general SH2 domains are involved in signal transduction.
They typically bind pTyr-containing ligands via two
surface pockets, a pTyr and hydrophobic binding pocket,
allowing proteins with SH2 domains to localize to
tyrosine phosphorylated sites.
Length = 79
Score = 39.6 bits (92), Expect = 3e-04
Identities = 21/69 (30%), Positives = 34/69 (49%), Gaps = 5/69 (7%)
Query: 257 WYVGDMSRQRAES-ILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSR 314
WY +SR +A+ +L ++ G F++R S S+ G Y+LS+ V HY I
Sbjct: 2 WYFSGISRTQAQQLLLSPPNEPGAFLIRPSESSLGGYSLSVRA---QAKVCHYRICMAPS 58
Query: 315 GEFFLSEKH 323
G +L +
Sbjct: 59 GSLYLQKGR 67
Score = 31.9 bits (72), Expect = 0.11
Identities = 17/62 (27%), Positives = 30/62 (48%), Gaps = 4/62 (6%)
Query: 333 DKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVN 391
++ G F++R S S+ G Y+LS+ V HY I G +L + + E++
Sbjct: 21 NEPGAFLIRPSESSLGGYSLSVRA---QAKVCHYRICMAPSGSLYLQKGRLFPGLEELLA 77
Query: 392 YH 393
Y+
Sbjct: 78 YY 79
>gnl|CDD|212944 cd12011, SH3_SLAP2, Src homology 3 domain of Src-Like Adaptor
Protein 2. SLAP2 plays a role in c-Cbl-dependent
regulation of CSF1R, a tyrosine kinase important for
myeloid cell growth and differentiation. It has been
shown to interact with CSF1R, c-Cbl, LAT, CD247, and
Zap70. SLAPs are adaptor proteins with limited
similarity to Src family tyrosine kinases. They contain
an N-terminal SH3 domain followed by an SH2 domain, and
a unique C-terminal sequence. They function in
regulating the signaling, ubiquitination, and
trafficking of T-cell receptor (TCR) and B-cell receptor
(BCR) components. The SH3 domain of SLAP forms a complex
with v-Abl. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 38.6 bits (90), Expect = 3e-04
Identities = 20/53 (37%), Positives = 28/53 (52%), Gaps = 2/53 (3%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDK-NGSVGYIPSNYV 178
V VAL F + +LS+ G + ++ + + WWKV G YIPSNYV
Sbjct: 1 VAVALCNFPSGGPTELSIRMGEQLTILSEDGD-WWKVSSAVTGRECYIPSNYV 52
Score = 28.2 bits (63), Expect = 1.3
Identities = 12/37 (32%), Positives = 20/37 (54%), Gaps = 1/37 (2%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKV 110
V VAL F + +LS+ G + ++ + + WWKV
Sbjct: 1 VAVALCNFPSGGPTELSIRMGEQLTILSEDGD-WWKV 36
>gnl|CDD|213002 cd12069, SH3_ARHGAP27, Src Homology 3 domain of Rho
GTPase-activating protein 27. Rho GTPase-activating
proteins (RhoGAPs or ARHGAPs) bind to Rho proteins and
enhance the hydrolysis rates of bound GTP. ARHGAP27,
also called CAMGAP1, shows GAP activity towards Rac1 and
Cdc42. It binds the adaptor protein CIN85 and may play a
role in clathrin-mediated endocytosis. It contains SH3,
WW, Pleckstin homology (PH), and RhoGAP domains. SH3
domains bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs;
they play a role in the regulation of enzymes by
intramolecular interactions, changing the subcellular
localization of signal pathway components and mediate
multiprotein complex assemblies.
Length = 57
Score = 38.6 bits (90), Expect = 3e-04
Identities = 18/50 (36%), Positives = 28/50 (56%), Gaps = 1/50 (2%)
Query: 132 YPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKV-KDKNGSVGYIPSNYVKE 180
+ + +G +S++ Y ++ T EHWW V +DK YIP+ YVKE
Sbjct: 8 FEYTGKDGRLVSIKPNERYILLRRTNEHWWHVRRDKGTRPFYIPAKYVKE 57
>gnl|CDD|212858 cd11925, SH3_SH3RF3_3, Third Src Homology 3 domain of SH3 domain
containing ring finger 3, an E3 ubiquitin-protein
ligase. SH3RF3 is also called POSH2 (Plenty of SH3s 2)
or SH3MD4 (SH3 multiple domains protein 4). It is a
scaffold protein with E3 ubiquitin-protein ligase
activity. It was identified in the screen for
interacting partners of p21-activated kinase 2 (PAK2).
It may play a role in regulating JNK mediated apoptosis
in certain conditions. It also interacts with GTP-loaded
Rac1. SH3RF3 is highly homologous to SH3RF1; it also
contains an N-terminal RING finger domain and four SH3
domains. This model represents the third SH3 domain,
located in the middle, of SH3RF3. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 57
Score = 38.8 bits (90), Expect = 3e-04
Identities = 19/53 (35%), Positives = 29/53 (54%), Gaps = 1/53 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK-VKDKNGSVGYIPSNYV 178
+ +ALY +K + +L L KG Y V++ Q+ W+K + G G P NYV
Sbjct: 2 IYLALYAYKPQKNDELELRKGEMYRVIEKCQDGWFKGTSLRTGVSGVFPGNYV 54
Score = 31.9 bits (72), Expect = 0.076
Identities = 13/36 (36%), Positives = 22/36 (61%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK 109
+ +ALY +K + +L L KG Y V++ Q+ W+K
Sbjct: 2 IYLALYAYKPQKNDELELRKGEMYRVIEKCQDGWFK 37
>gnl|CDD|198195 cd09942, SH2_nSH2_p85_like, N-terminal Src homology 2 (nSH2) domain
found in p85. Phosphoinositide 3-kinases (PI3Ks) are
essential for cell growth, migration, and survival.
p110, the catalytic subunit, is composed of an
adaptor-binding domain, a Ras-binding domain, a C2
domain, a helical domain, and a kinase domain. The
regulatory unit is called p85 and is composed of an SH3
domain, a RhoGap domain, a N-terminal SH2 (nSH2) domain,
an internal SH2 (iSH2) domain, and C-terminal (cSH2)
domain. There are 2 inhibitory interactions between
p110alpha and p85 of P13K: (1) p85 nSH2 domain with the
C2, helical, and kinase domains of p110alpha and (2) p85
iSH2 domain with C2 domain of p110alpha. There are 3
inhibitory interactions between p110beta and p85 of
P13K: (1) p85 nSH2 domain with the C2, helical, and
kinase domains of p110beta, (2) p85 iSH2 domain with C2
domain of p110alpha, and (3) p85 cSH2 domain with the
kinase domain of p110alpha. It is interesting to note
that p110beta is oncogenic as a wild type protein while
p110alpha lacks this ability. One explanation is the
idea that the regulation of p110beta by p85 is unique
because of the addition of inhibitory contacts from the
cSH2 domain and the loss of contacts in the iSH2 domain.
In general SH2 domains are involved in signal
transduction. They typically bind pTyr-containing
ligands via two surface pockets, a pTyr and hydrophobic
binding pocket, allowing proteins with SH2 domains to
localize to tyrosine phosphorylated sites.
Length = 110
Score = 40.0 bits (94), Expect = 3e-04
Identities = 19/42 (45%), Positives = 27/42 (64%), Gaps = 4/42 (9%)
Query: 256 AWYVGDMSRQRAESILK-QEDKEGCFVVRNSST-KGLYTLSL 295
WY GD+SR+ ++ D G F+VR++ST KG YTL+L
Sbjct: 8 EWYWGDISREEVNEKMRDTPD--GTFLVRDASTMKGDYTLTL 47
Score = 38.8 bits (91), Expect = 8e-04
Identities = 26/74 (35%), Positives = 44/74 (59%), Gaps = 10/74 (13%)
Query: 330 EVKDK-----EGCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFLSEKHCC 383
EV +K +G F+VR++ST KG YTL+L + +K +H G++ S+
Sbjct: 18 EVNEKMRDTPDGTFLVRDASTMKGDYTLTLRKGGNNKLIKIFH----RDGKYGFSDPLTF 73
Query: 384 HSIPEVVNYHRHNS 397
+S+ E++NY+R+NS
Sbjct: 74 NSVVELINYYRNNS 87
>gnl|CDD|198185 cd09931, SH2_C-SH2_SHP_like, C-terminal Src homology 2 (C-SH2)
domain found in SH2 domain Phosphatases (SHP) proteins.
The SH2 domain phosphatases (SHP-1, SHP-2/Syp,
Drosophila corkscrew (csw), and Caenorhabditis elegans
Protein Tyrosine Phosphatase (Ptp-2)) are cytoplasmic
signaling enzymes. They are both targeted and regulated
by interactions of their SH2 domains with
phosphotyrosine docking sites. These proteins contain
two SH2 domains (N-SH2, C-SH2) followed by a tyrosine
phosphatase (PTP) domain, and a C-terminal extension.
Shp1 and Shp2 have two tyrosyl phosphorylation sites in
their C-tails, which are phosphorylated differentially
by receptor and nonreceptor PTKs. Csw retains the
proximal tyrosine and Ptp-2 lacks both sites.
Shp-binding proteins include receptors, scaffolding
adapters, and inhibitory receptors. Some of these bind
both Shp1 and Shp2 while others bind only one. Most
proteins that bind a Shp SH2 domain contain one or more
immuno-receptor tyrosine-based inhibitory motifs
(ITIMs): [SIVL]xpYxx[IVL]. Shp1 N-SH2 domain blocks the
catalytic domain and keeps the enzyme in the inactive
conformation, and is thus believed to regulate the
phosphatase activity of SHP-1. Its C-SH2 domain is
thought to be involved in searching for phosphotyrosine
activators. The SHP2 N-SH2 domain is a conformational
switch; it either binds and inhibits the phosphatase, or
it binds phosphoproteins and activates the enzyme. The
C-SH2 domain contributes binding energy and specificity,
but it does not have a direct role in activation. Csw
SH2 domain function is essential, but either SH2 domain
can fulfill this requirement. The role of the csw SH2
domains during Sevenless receptor tyrosine kinase (SEV)
signaling is to bind Daughter of Sevenless rather than
activated SEV. Ptp-2 acts in oocytes downstream of
sheath/oocyte gap junctions to promote major sperm
protein (MSP)-induced MAP Kinase (MPK-1)
phosphorylation. Ptp-2 functions in the oocyte
cytoplasm, not at the cell surface to inhibit multiple
RasGAPs, resulting in sustained Ras activation. It is
thought that MSP triggers PTP-2/Ras activation and ROS
production to stimulate MPK-1 activity essential for
oocyte maturation and that secreted MSP domains and
Cu/Zn superoxide dismutases function antagonistically to
control ROS and MAPK signaling. In general SH2 domains
are involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 99
Score = 39.6 bits (93), Expect = 3e-04
Identities = 19/54 (35%), Positives = 30/54 (55%), Gaps = 3/54 (5%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSSTK-GLYTLSLYTKVPHPHVKHYHI 309
W+ G +S + AE +L ++ K G F+VR S +K G + LS+ + V H I
Sbjct: 2 WFHGHLSGKEAEKLLLEKGKPGSFLVRESQSKPGDFVLSV--RTDDDKVTHIMI 53
>gnl|CDD|212708 cd11774, SH3_Sla1p_2, Second Src Homology 3 domain of the fungal
endocytic adaptor protein Sla1p. Sla1p facilitates
endocytosis by playing a role as an adaptor protein in
coupling components of the actin cytoskeleton to the
endocytic machinery. It interacts with Abp1p, Las17p and
Pan1p, which are activator proteins of actin-related
protein 2/3 (Arp2/3). Sla1p contains multiple domains
including three SH3 domains, a SAM (sterile alpha motif)
domain, and a Sla1 homology domain 1 (SHD1), which binds
to the NPFXD motif that is found in many integral
membrane proteins such as the Golgi-localized
Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and
Dnf1p. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 52
Score = 38.2 bits (89), Expect = 3e-04
Identities = 15/51 (29%), Positives = 24/51 (47%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
ALY + +LS +G +V DD+ W V G++P+NY+
Sbjct: 2 AKALYDYDKQTEEELSFNEGDTLDVYDDSDSDWILVGFNGTQFGFVPANYI 52
>gnl|CDD|212764 cd11830, SH3_VAV_2, C-terminal (or second) Src homology 3 domain of
VAV proteins. VAV proteins function both as cytoplasmic
guanine nucleotide exchange factors (GEFs) for Rho
GTPases and scaffold proteins and they play important
roles in cell signaling by coupling cell surface
receptors to various effector functions. They play key
roles in processes that require cytoskeletal
reorganization including immune synapse formation,
phagocytosis, cell spreading, and platelet aggregation,
among others. Vertebrates have three VAV proteins (VAV1,
VAV2, and VAV3). VAV proteins contain several domains
that enable their function: N-terminal calponin homology
(CH), acidic, RhoGEF (also called Dbl-homologous or DH),
Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two
SH3 domains. The SH3 domain of VAV is involved in the
localization of proteins to specific sites within the
cell, by interacting with proline-rich sequences within
target proteins. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 38.4 bits (89), Expect = 3e-04
Identities = 19/55 (34%), Positives = 32/55 (58%), Gaps = 2/55 (3%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDD-TQEHWWKVKDKNGSVGYIPSNYVKE 180
A Y F A + +LSL++G ++ + Q+ WW+ + NG +G+ PS YV+E
Sbjct: 1 TAKARYDFCARDMRELSLKEGDVVKIYNKKGQQGWWR-GEINGRIGWFPSTYVEE 54
>gnl|CDD|213005 cd12072, SH3_FNBP1L, Src Homology 3 domain of Formin Binding
Protein 1-Like. FormiN Binding Protein 1-Like (FNBP1L),
also known as Toca-1 (Transducer of Cdc42-dependent
actin assembly), forms a complex with neural
Wiskott-Aldrich syndrome protein (N-WASP). The
FNBP1L/N-WASP complex induces the formation of filopodia
and endocytic vesicles. FNBP1L is required for
Cdc42-induced actin assembly and is essential for
autophagy of intracellular pathogens. It contains an
N-terminal F-BAR domain, a central Cdc42-binding HR1
domain, and a C-terminal SH3 domain. The SH3 domain of
the related protein, CIP4, associates with Gapex-5, a
Rab31 GEF. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 57
Score = 38.4 bits (89), Expect = 4e-04
Identities = 17/51 (33%), Positives = 32/51 (62%), Gaps = 1/51 (1%)
Query: 130 ALYPFKAIEGGDLSLEKG-AEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
ALYPF G L++++G Y + +D + W + + +NG GY+P++Y++
Sbjct: 5 ALYPFDGSNEGTLAMKEGEVLYIIEEDKGDGWTRARKQNGEEGYVPTSYIE 55
>gnl|CDD|198191 cd09938, SH2_N-SH2_Zap70_Syk_like, N-terminal Src homology 2 (SH2)
domain found in Zeta-chain-associated protein kinase 70
(ZAP-70) and Spleen tyrosine kinase (Syk) proteins.
ZAP-70 and Syk comprise a family of hematopoietic cell
specific protein tyrosine kinases (PTKs) that are
required for antigen and antibody receptor function.
ZAP-70 is expressed in T and natural killer (NK) cells
and Syk is expressed in B cells, mast cells,
polymorphonuclear leukocytes, platelets, macrophages,
and immature T cells. They are required for the proper
development of T and B cells, immune receptors, and
activating NK cells. They consist of two N-terminal Src
homology 2 (SH2) domains and a C-terminal kinase domain
separated from the SH2 domains by a linker or hinge
region. Phosphorylation of both tyrosine residues within
the Immunoreceptor Tyrosine-based Activation Motifs
(ITAM; consensus sequence Yxx[LI]x(7,8)Yxx[LI]) by the
Src-family PTKs is required for efficient interaction of
ZAP-70 and Syk with the receptor subunits and for
receptor function. ZAP-70 forms two phosphotyrosine
binding pockets, one of which is shared by both SH2
domains. In Syk the two SH2 domains do not form such a
phosphotyrosine-binding site. The SH2 domains here are
believed to function independently. In addition, the two
SH2 domains of Syk display flexibility in their relative
orientation, allowing Syk to accommodate a greater
variety of spacing sequences between the ITAM
phosphotyrosines and singly phosphorylated non-classical
ITAM ligands. This model contains the N-terminus SH2
domains of both Syk and Zap70. In general SH2 domains
are involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 104
Score = 39.7 bits (93), Expect = 4e-04
Identities = 22/80 (27%), Positives = 36/80 (45%), Gaps = 5/80 (6%)
Query: 335 EGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVNYH 393
+G F++R S + G Y LS+ HY I++ G + ++ E+ YH
Sbjct: 24 DGLFLLRQSLRSLGGYVLSV---CHGRKFHHYTIERQLNGTYAIAGGKAHCGPAELCEYH 80
Query: 394 RHNSGGLASRLKTSPCDRPV 413
+ GL L+ PC+RP
Sbjct: 81 STDLDGLVCLLR-KPCNRPP 99
Score = 31.2 bits (71), Expect = 0.34
Identities = 20/72 (27%), Positives = 36/72 (50%), Gaps = 7/72 (9%)
Query: 257 WYVGDMSRQRAESILKQED-KEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSR 314
++ G ++R+ AE LK +G F++R S + G Y LS+ HY I++
Sbjct: 3 FFYGSITREEAEEYLKLAGMSDGLFLLRQSLRSLGGYVLSV---CHGRKFHHYTIERQLN 59
Query: 315 GEFFLS--EKHC 324
G + ++ + HC
Sbjct: 60 GTYAIAGGKAHC 71
>gnl|CDD|133211 cd05080, PTKc_Tyk2_rpt2, Catalytic (repeat 2) domain of the Protein
Tyrosine Kinase, Tyrosine kinase 2. Protein Tyrosine
Kinase (PTK) family; Tyrosine kinase 2 (Tyk2); catalytic
(c) domain (repeat 2). The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Tyk2 is a member of the
Janus kinase (Jak) subfamily of proteins, which are
cytoplasmic (or nonreceptor) tyr kinases containing an
N-terminal FERM domain, followed by a Src homology 2
(SH2) domain, a pseudokinase domain, and a C-terminal
tyr kinase catalytic domain. Jaks are crucial for
cytokine receptor signaling. They are activated by
autophosphorylation upon cytokine-induced receptor
aggregation, and subsequently trigger downstream
signaling events such as the phosphorylation of signal
transducers and activators of transcription (STATs).
Tyk2 is widely expressed in many tissues. It is involved
in signaling via the cytokine receptors IFN-alphabeta,
IL-6, IL-10, IL-12, IL-13, and IL-23. It mediates cell
surface urokinase receptor (uPAR) signaling and plays a
role in modulating vascular smooth muscle cell (VSMC)
functional behavior in response to injury. Tyk2 is also
important in dendritic cell function and T helper (Th)1
cell differentiation. A homozygous mutation of Tyk2 was
found in a patient with hyper-IgE syndrome (HIES), a
primary immunodeficiency characterized by recurrent skin
abscesses, pneumonia, and elevated serum IgE. This
suggests that Tyk2 may play important roles in multiple
cytokine signaling involved in innate and adaptive
immunity.
Length = 283
Score = 41.8 bits (98), Expect = 5e-04
Identities = 20/46 (43%), Positives = 27/46 (58%), Gaps = 8/46 (17%)
Query: 4 GSLLNYLRRHENTLGGNVGL--LLDMCIQVCKGMAYLERHNYIHRE 47
GSL +YL +H + L LL Q+C+GMAYL +YIHR+
Sbjct: 93 GSLRDYLPKH------KLNLAQLLLFAQQICEGMAYLHSQHYIHRD 132
Score = 29.5 bits (66), Expect = 4.2
Identities = 19/72 (26%), Positives = 32/72 (44%), Gaps = 9/72 (12%)
Query: 431 LMLLEELGSGQFGVVRRGKWRGSID-------VAMMKE--GTMSEDDFIEEAKVMTRLQH 481
L + LG G FG V + + D V +K G + + +E ++ L H
Sbjct: 6 LKKIRVLGEGHFGKVSLYCYDPANDGTGEMVAVKTLKRECGQQNTSGWKKEINILKTLYH 65
Query: 482 QNLVQLYGVCSK 493
+N+V+ G CS+
Sbjct: 66 ENIVKYKGCCSE 77
Score = 29.1 bits (65), Expect = 5.6
Identities = 11/26 (42%), Positives = 18/26 (69%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFT 227
+ L +FS SDVW++GV ++E+ T
Sbjct: 180 ECLKENKFSYASDVWSFGVTLYELLT 205
>gnl|CDD|219499 pfam07653, SH3_2, Variant SH3 domain. SH3 (Src homology 3) domains
are often indicative of a protein involved in signal
transduction related to cytoskeletal organisation. First
described in the Src cytoplasmic tyrosine kinase. The
structure is a partly opened beta barrel.
Length = 53
Score = 37.8 bits (89), Expect = 5e-04
Identities = 16/41 (39%), Positives = 26/41 (63%), Gaps = 1/41 (2%)
Query: 140 GDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
+LSL+KG +V+D WW+ ++ G G +PS+YV+E
Sbjct: 14 NELSLKKGDVVKVLDKDDNGWWEG-ERGGRRGLVPSSYVEE 53
>gnl|CDD|133235 cd05104, PTKc_Kit, Catalytic domain of the Protein Tyrosine Kinase,
Kit. Protein Tyrosine Kinase (PTK) family; Kit (or
c-Kit); catalytic (c) domain. The PTKc family is part of
a larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Kit is a member of the
Platelet Derived Growth Factor Receptor (PDGFR)
subfamily of proteins, which are receptor tyr kinases
(RTKs) containing an extracellular ligand-binding region
with five immunoglobulin-like domains, a transmembrane
segment, and an intracellular catalytic domain. The
binding of Kit to its ligand, the stem-cell factor
(SCF), leads to receptor dimerization, trans
phosphorylation and activation, and intracellular
signaling. Kit is important in the development of
melanocytes, germ cells, mast cells, hematopoietic stem
cells, the interstitial cells of Cajal, and the
pacemaker cells of the GI tract. Kit signaling is
involved in major cellular functions including cell
survival, proliferation, differentiation, adhesion, and
chemotaxis. Mutations in Kit, which result in
constitutive ligand-independent activation, are found in
human cancers such as gastrointestinal stromal tumor
(GIST) and testicular germ cell tumor (TGCT). The
aberrant expression of Kit and/or SCF is associated with
other tumor types such as systemic mastocytosis and
cancers of the breast, neurons, lung, prostate, colon,
and rectum. Although the structure of the human Kit
catalytic domain is known, it is excluded from this
specific alignment model because it contains a deletion
in its sequence.
Length = 375
Score = 42.2 bits (99), Expect = 5e-04
Identities = 13/28 (46%), Positives = 22/28 (78%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRL 236
++ +SDVW+YG+L+WE+F+ G PY +
Sbjct: 293 YTFESDVWSYGILLWEIFSLGSSPYPGM 320
Score = 36.4 bits (84), Expect = 0.034
Identities = 26/95 (27%), Positives = 41/95 (43%), Gaps = 11/95 (11%)
Query: 423 KWEIDPAELMLLEELGSGQFGVVRRGKWRG--------SIDVAMMKEGTMS--EDDFIEE 472
KWE L + LG+G FG V G ++ V M+K + + E
Sbjct: 29 KWEFPRNRLSFGKTLGAGAFGKVVEATAYGLFKSDAAMTVAVKMLKPSAHLTEREALMSE 88
Query: 473 AKVMTRL-QHQNLVQLYGVCSKHRPIYIVTDTSSF 506
KV++ L H N+V L G C+ P ++T+ +
Sbjct: 89 LKVLSYLGNHINIVNLLGACTVGGPTLVITEYCCY 123
Score = 29.5 bits (66), Expect = 4.4
Identities = 14/34 (41%), Positives = 19/34 (55%)
Query: 14 ENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
E+ L + LL QV KGM++L N IHR+
Sbjct: 206 EDELALDTEDLLSFSYQVAKGMSFLASKNCIHRD 239
>gnl|CDD|198251 cd10388, SH2_SOCS7, Src homology 2 (SH2) domain found in
suppressor of cytokine signaling (SOCS) proteins. SH2
domain found in SOCS proteins. SOCS was first recognized
as a group of cytokine-inducible SH2 (CIS) domain
proteins comprising eight family members in human (CIS
and SOCS1-SOCS7). In addition to the SH2 domain, SOCS
proteins have a variable N-terminal domain and a
conserved SOCS box in the C-terminal domain. SOCS
proteins bind to a substrate via their SH2 domain. The
prototypical members, CIS and SOCS1-SOCS3, have been
shown to regulate growth hormone signaling in vitro and
in a classic negative feedback response compete for
binding at phosphotyrosine sites in JAK kinase and
receptor pathways to displace effector proteins and
target bound receptors for proteasomal degradation. Loss
of SOCS activity results in excessive cytokine signaling
associated with a variety of hematopoietic, autoimmune,
and inflammatory diseases and certain cancers. Members
(SOCS4-SOCS7) were identified by their conserved SOCS
box, an adapter motif of 3 helices that associates
substrate binding domains, such as the SOCS SH2 domain,
ankryin, and WD40 with ubiquitin ligase components.
These show limited cytokine induction. In general SH2
domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 101
Score = 38.9 bits (91), Expect = 5e-04
Identities = 19/55 (34%), Positives = 33/55 (60%), Gaps = 4/55 (7%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSST-KGLYTLSLYTK--VPHPHVKHYH 308
WY G MS + AE +L + +G F+VR+SS + +++LS ++ V H ++ Y
Sbjct: 12 WYWGPMSWEDAEKVLSNK-PDGSFLVRDSSDDRYIFSLSFRSQGSVHHTRIEQYQ 65
>gnl|CDD|212815 cd11882, SH3_GRAF-like, Src Homology 3 domain of GTPase Regulator
Associated with Focal adhesion kinase and similar
proteins. This subfamily is composed of Rho GTPase
activating proteins (GAPs) with similarity to GRAF.
Members contain an N-terminal BAR domain, followed by a
Pleckstrin homology (PH) domain, a Rho GAP domain, and a
C-terminal SH3 domain. Although vertebrates harbor four
Rho GAPs in the GRAF subfamily including GRAF, GRAF2,
GRAF3, and Oligophrenin-1 (OPHN1), only three are
included in this model. OPHN1 contains the BAR, PH and
GAP domains, but not the C-terminal SH3 domain. GRAF and
GRAF2 show GAP activity towards RhoA and Cdc42. GRAF
influences Rho-mediated cytoskeletal rearrangements and
binds focal adhesion kinase. GRAF2 regulates
caspase-activated p21-activated protein kinase-2. The
SH3 domain of GRAF and GRAF2 binds PKNbeta, a target of
the small GTPase Rho. SH3 domains bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs; they play a role in the
regulation of enzymes by intramolecular interactions,
changing the subcellular localization of signal pathway
components and mediate multiprotein complex assemblies.
Length = 54
Score = 37.7 bits (88), Expect = 5e-04
Identities = 19/52 (36%), Positives = 24/52 (46%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
ALY KA + +LS E G + + E W NG G IP NYV+
Sbjct: 2 ARALYACKAEDESELSFEPGQIITNVQPSDEPGWLEGTLNGRTGLIPENYVE 53
>gnl|CDD|212707 cd11773, SH3_Sla1p_1, First Src Homology 3 domain of the fungal
endocytic adaptor protein Sla1p. Sla1p facilitates
endocytosis by playing a role as an adaptor protein in
coupling components of the actin cytoskeleton to the
endocytic machinery. It interacts with Abp1p, Las17p and
Pan1p, which are activator proteins of actin-related
protein 2/3 (Arp2/3). Sla1p contains multiple domains
including three SH3 domains, a SAM (sterile alpha motif)
domain, and a Sla1 homology domain 1 (SHD1), which binds
to the NPFXD motif that is found in many integral
membrane proteins such as the Golgi-localized
Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and
Dnf1p. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 57
Score = 37.8 bits (88), Expect = 6e-04
Identities = 15/57 (26%), Positives = 30/57 (52%), Gaps = 6/57 (10%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK------DKNGSVGYIPSNY 177
V ALY ++ +L++++ +++ + + WWKVK D + VG +P+ Y
Sbjct: 1 VYKALYDYEPQTEDELTIQEDDILYLLEKSDDDWWKVKLKVNSSDDDEPVGLVPATY 57
Score = 29.7 bits (67), Expect = 0.39
Identities = 11/40 (27%), Positives = 23/40 (57%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDK 113
V ALY ++ +L++++ +++ + + WWKVK K
Sbjct: 1 VYKALYDYEPQTEDELTIQEDDILYLLEKSDDDWWKVKLK 40
>gnl|CDD|198179 cd09925, SH2_SHC, Src homology 2 (SH2) domain found in SH2 adaptor
protein C (SHC). SHC is involved in a wide variety of
pathways including regulating proliferation,
angiogenesis, invasion and metastasis, and bone
metabolism. An adapter protein, SHC has been implicated
in Ras activation following the stimulation of a number
of different receptors, including growth factors
[insulin, epidermal growth factor (EGF), nerve growth
factor, and platelet derived growth factor (PDGF)],
cytokines [interleukins 2, 3, and 5], erythropoietin,
and granulocyte/macrophage colony-stimulating factor,
and antigens [T-cell and B-cell receptors]. SHC has been
shown to bind to tyrosine-phosphorylated receptors, and
receptor stimulation leads to tyrosine phosphorylation
of SHC. Upon phosphorylation, SHC interacts with another
adapter protein, Grb2, which binds to the Ras GTP/GDP
exchange factor mSOS which leads to Ras activation. SHC
is composed of an N-terminal domain that interacts with
proteins containing phosphorylated tyrosines, a
(glycine/proline)-rich collagen-homology domain that
contains the phosphorylated binding site, and a
C-terminal SH2 domain. SH2 has been shown to interact
with the tyrosine-phosphorylated receptors of EGF and
PDGF and with the tyrosine-phosphorylated C chain of the
T-cell receptor, providing one of the mechanisms of
T-cell-mediated Ras activation. In general SH2 domains
are involved in signal transduction. They typically
bind pTyr-containing ligands via two surface pockets, a
pTyr and hydrophobic binding pocket, allowing proteins
with SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 104
Score = 38.9 bits (91), Expect = 7e-04
Identities = 20/50 (40%), Positives = 28/50 (56%), Gaps = 4/50 (8%)
Query: 255 KAWYVGDMSRQRAESILKQEDKEGCFVVRNSSTK-GLYTLSLYTKVPHPH 303
+ WY G MSR+ AES+L+ +G F+VR S+T G Y L+ H
Sbjct: 7 EPWYHGKMSRRDAESLLQT---DGDFLVRESTTTPGQYVLTGMQNGQPKH 53
>gnl|CDD|212893 cd11960, SH3_Abp1_eu, Src homology 3 domain of eumetazoan
Actin-binding protein 1. Abp1, also called drebrin-like
protein, is an adaptor protein that functions in
receptor-mediated endocytosis and vesicle trafficking.
It contains an N-terminal actin-binding module, the
actin-depolymerizing factor (ADF) homology domain, a
helical domain, and a C-terminal SH3 domain. Mammalian
Abp1, unlike yeast Abp1, does not contain an acidic
domain that interacts with the Arp2/3 complex. It
regulates actin dynamics indirectly by interacting with
dynamin and WASP family proteins. Abp1 deficiency causes
abnormal organ structure and function of the spleen,
heart, and lung of mice. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 37.4 bits (87), Expect = 7e-04
Identities = 17/53 (32%), Positives = 30/53 (56%), Gaps = 6/53 (11%)
Query: 130 ALYPFKAIEGGDLSLEKG---AEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
ALY ++A + ++S + G + E +D E WW+ +G+ G P+NYV+
Sbjct: 4 ALYDYQAADDTEISFDPGDIITDIEQID---EGWWRGTGPDGTYGLFPANYVE 53
>gnl|CDD|212949 cd12016, SH3_Tks_2, Second Src homology 3 domain of Tyrosine kinase
substrate (Tks) proteins. Tks proteins are Src
substrates and scaffolding proteins that play important
roles in the formation of podosomes and invadopodia, the
dynamic actin-rich structures that are related to cell
migration and cancer cell invasion. Vertebrates contain
two Tks proteins, Tks4 (Tyr kinase substrate with four
SH3 domains) and Tks5 (Tyr kinase substrate with five
SH3 domains), which display partially overlapping but
non-redundant functions. Both associate with the ADAMs
family of transmembrane metalloproteases, which function
as sheddases and mediators of cell and matrix
interactions. Tks5 interacts with N-WASP and Nck, while
Tks4 is essential for the localization of MT1-MMP
(membrane-type 1 matrix metalloproteinase) to
invadopodia. Tks proteins contain an N-terminal Phox
homology (PX) domain and four or five SH3 domains. This
model characterizes the second SH3 domain of Tks
proteins. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 37.4 bits (87), Expect = 8e-04
Identities = 14/51 (27%), Positives = 26/51 (50%), Gaps = 1/51 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
+ +KA ++ E G EV+ + WWK++ + G G+ P+ Y+K
Sbjct: 4 ITTQAYKAENEDEIGFETGVVVEVIQKNLDGWWKIRYQ-GKEGWAPATYLK 53
Score = 31.3 bits (71), Expect = 0.12
Identities = 11/42 (26%), Positives = 19/42 (45%), Gaps = 2/42 (4%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK--DKNG 115
+ +KA ++ E G EV+ + WWK++ K G
Sbjct: 4 ITTQAYKAENEDEIGFETGVVVEVIQKNLDGWWKIRYQGKEG 45
>gnl|CDD|212998 cd12065, SH3_GRAF2, Src Homology 3 domain of GTPase Regulator
Associated with Focal adhesion kinase 2. GRAF2, also
called Rho GTPase activating protein 10 (ARHGAP10) or
PS-GAP, is a GAP with activity towards Cdc42 and RhoA.
It regulates caspase-activated p21-activated protein
kinase-2 (PAK-2p34). GRAF2 interacts with PAK-2p34,
leading to its stabilization and decrease of cell death.
It is highly expressed in skeletal muscle, and is
involved in alpha-catenin recruitment at cell-cell
junctions. GRAF2 contains an N-terminal BAR domain,
followed by a Pleckstrin homology (PH) domain, a Rho GAP
domain, and a C-terminal SH3 domain. The SH3 domain of
GRAF binds PKNbeta, a target of the small GTPase Rho.
SH3 domains bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs;
they play a role in the regulation of enzymes by
intramolecular interactions, changing the subcellular
localization of signal pathway components and mediate
multiprotein complex assemblies.
Length = 54
Score = 37.3 bits (86), Expect = 8e-04
Identities = 20/50 (40%), Positives = 28/50 (56%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
A+YP +A +LS E GA +E + ++E W NG G IP NYV+
Sbjct: 4 AVYPCEAEHSSELSFEVGAIFEDVTLSREPGWLEGTLNGKRGLIPENYVE 53
>gnl|CDD|212760 cd11826, SH3_Abi, Src homology 3 domain of Abl Interactor proteins.
Abl interactor (Abi) proteins are adaptor proteins
serving as binding partners and substrates of Abl
tyrosine kinases. They are involved in regulating actin
cytoskeletal reorganization and play important roles in
membrane-ruffling, endocytosis, cell motility, and cell
migration. They localize to sites of actin
polymerization in epithelial adherens junction and
immune synapses, as well as to the leading edge of
lamellipodia. Vertebrates contain two Abi proteins, Abi1
and Abi2. Abi1 displays a wide expression pattern while
Abi2 is highly expressed in the eye and brain. Abi
proteins contain a homeobox homology domain, a
proline-rich region, and a SH3 domain. The SH3 domain of
Abi binds to a PxxP motif in Abl. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 52
Score = 36.9 bits (86), Expect = 9e-04
Identities = 18/51 (35%), Positives = 26/51 (50%), Gaps = 1/51 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
VVALY + A + +LS ++G V + W++ NG G P NYV
Sbjct: 2 VVALYDYTADKDDELSFQEGDIIYVTKKNDDGWYE-GVLNGVTGLFPGNYV 51
>gnl|CDD|212921 cd11988, SH3_Intersectin2_1, First Src homology 3 domain (or SH3A)
of Intersectin-2. Intersectin-2 (ITSN2) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN2 also functions as a specific GEF for Cdc42
activation in epithelial morphogenesis, and is required
in mitotic spindle orientation. It exists in
alternatively spliced short and long isoforms. The short
isoform contains two Eps15 homology domains (EH1 and
EH2), a coiled-coil region and five SH3 domains
(SH3A-E), while the long isoform, in addition, contains
RhoGEF (also called Dbl-homologous or DH), Pleckstrin
homology (PH) and C2 domains. The first SH3 domain (or
SH3A) of ITSN2 is expected to bind many protein
partners, similar to ITSN1 which has been shown to bind
Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP,
and CdGAP, among others. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 57
Score = 37.2 bits (86), Expect = 9e-04
Identities = 18/52 (34%), Positives = 27/52 (51%), Gaps = 1/52 (1%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDT-QEHWWKVKDKNGSVGYIPSNYVKE 180
ALYPF+A ++S G +V + T E W G+ G+ P NYV++
Sbjct: 6 ALYPFEARNHDEMSFNAGDIIQVDEKTVGEPGWLYGSFQGNFGWFPCNYVEK 57
>gnl|CDD|199829 cd10341, SH2_N-SH2_PLC_gamma_like, N-terminal Src homology 2
(N-SH2) domain in Phospholipase C gamma. Phospholipase
C gamma is a signaling molecule that is recruited to the
C-terminal tail of the receptor upon autophosphorylation
of a highly conserved tyrosine. PLCgamma is composed of
a Pleckstrin homology (PH) domain followed by an
elongation factor (EF) domain, 2 catalytic regions of
PLC domains that flank 2 tandem SH2 domains (N-SH2,
C-SH2), and ending with a SH3 domain and C2 domain.
N-SH2 SH2 domain-mediated interactions represent a
crucial step in transmembrane signaling by receptor
tyrosine kinases. SH2 domains recognize phosphotyrosine
(pY) in the context of particular sequence motifs in
receptor phosphorylation sites. Both N-SH2 and C-SH2
have a very similar binding affinity to pY. But in
growth factor stimulated cells these domains bind to
different target proteins. N-SH2 binds to pY containing
sites in the C-terminal tails of tyrosine kinases and
other receptors. Recently it has been shown that this
interaction is mediated by phosphorylation-independent
interactions between a secondary binding site found
exclusively on the N-SH2 domain and a region of the
FGFR1 tyrosine kinase domain. This secondary site on the
SH2 cooperates with the canonical pY site to regulate
selectivity in mediating a specific cellular process.
C-SH2 binds to an intramolecular site on PLCgamma itself
which allows it to hydrolyze
phosphatidylinositol-4,5-bisphosphate into
diacylglycerol and inositol triphosphate. These then
activate protein kinase C and release calcium. In
general SH2 domains are involved in signal transduction.
They typically bind pTyr-containing ligands via two
surface pockets, a pTyr and hydrophobic binding pocket,
allowing proteins with SH2 domains to localize to
tyrosine phosphorylated sites.
Length = 99
Score = 38.5 bits (90), Expect = 9e-04
Identities = 21/70 (30%), Positives = 38/70 (54%), Gaps = 7/70 (10%)
Query: 332 KDKEGCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHIK---QNSRGEFFLSEKHCCHSIP 387
+ +G F+VR S T G YTLS + V+H I+ +N +++L++ S+
Sbjct: 27 EGGDGTFLVRESETFVGDYTLSFWRN---GKVQHCRIRSRQENGEKKYYLTDNLVFDSLY 83
Query: 388 EVVNYHRHNS 397
E+++Y+R N
Sbjct: 84 ELIDYYRQNP 93
>gnl|CDD|212784 cd11850, SH3_Abl, Src homology 3 domain of the Protein Tyrosine
Kinase, Abelson kinase. Abl (or c-Abl) is a
ubiquitously-expressed cytoplasmic (or nonreceptor) PTK
that contains SH3, SH2, and tyr kinase domains in its
N-terminal region, as well as nuclear localization
motifs, a putative DNA-binding domain, and F- and
G-actin binding domains in its C-terminal tail. It also
contains a short autoinhibitory cap region in its
N-terminus. Abl function depends on its subcellular
localization. In the cytoplasm, Abl plays a role in cell
proliferation and survival. In response to DNA damage or
oxidative stress, Abl is transported to the nucleus
where it induces apoptosis. In chronic myelogenous
leukemia (CML) patients, an aberrant translocation
results in the replacement of the first exon of Abl with
the BCR (breakpoint cluster region) gene. The resulting
BCR-Abl fusion protein is constitutively active and
associates into tetramers, resulting in a hyperactive
kinase sending a continuous signal. This leads to
uncontrolled proliferation, morphological transformation
and anti-apoptotic effects. BCR-Abl is the target of
selective inhibitors, such as imatinib (Gleevec), used
in the treatment of CML. Abl2, also known as ARG
(Abelson-related gene), is thought to play a cooperative
role with Abl in the proper development of the nervous
system. The Tel-ARG fusion protein, resulting from
reciprocal translocation between chromosomes 1 and 12,
is associated with acute myeloid leukemia (AML). SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 56
Score = 37.0 bits (86), Expect = 9e-04
Identities = 18/52 (34%), Positives = 28/52 (53%), Gaps = 2/52 (3%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQ-EHWWKVK-DKNGSVGYIPSNYV 178
VALY F A LS++KG + V+ + W + + G G++PSNY+
Sbjct: 3 VALYDFVASGENQLSIKKGEQLRVLGYNKNGEWCEAESKSTGGQGWVPSNYI 54
>gnl|CDD|173659 cd05122, PKc_STE, Catalytic domain of STE family Protein Kinases.
Protein Kinases (PKs), STE family, catalytic (c) domain.
PKs catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine or tyrosine residues on
protein substrates. The STE family is part of a larger
superfamily that includes the catalytic domains of other
protein serine/threonine kinases (STKs), protein
tyrosine kinases (PTKs), RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase (PI3K). This family is composed of STKs, and
some dual-specificity PKs that phosphorylate both
threonine and tyrosine residues of target proteins. Most
members are kinases involved in mitogen-activated
protein kinase (MAPK) signaling cascades, acting as MAPK
kinases (MAPKKs), MAPK kinase kinases (MAPKKKs), or MAPK
kinase kinase kinases (MAP4Ks). The MAPK signaling
pathways are important mediators of cellular responses
to extracellular signals. The pathways involve a triple
kinase core cascade comprising of the MAPK, which is
phosphorylated and activated by a MAPKK, which itself is
phosphorylated and activated by a MAPKKK. Each MAPK
cascade is activated either by a small GTP-binding
protein or by an adaptor protein, which transmits the
signal either directly to a MAPKKK to start the triple
kinase core cascade or indirectly through a mediator
kinase, a MAP4K. Other STE family members include
p21-activated kinases (PAKs) and class III myosins,
among others. PAKs are Rho family GTPase-regulated
kinases that serve as important mediators in the
function of Cdc42 (cell division cycle 42) and Rac.
Class III myosins are motor proteins containing an
N-terminal kinase catalytic domain and a C-terminal
actin-binding domain, which can phosphorylate several
cytoskeletal proteins, conventional myosin regulatory
light chains, as well as autophosphorylate the
C-terminal motor domain. They play an important role in
maintaining the structural integrity of photoreceptor
cell microvilli.
Length = 253
Score = 40.7 bits (96), Expect = 0.001
Identities = 20/72 (27%), Positives = 42/72 (58%), Gaps = 4/72 (5%)
Query: 433 LLEELGSGQFGVVRRGKWRGS-IDVA--MMKEGTMSEDDFI-EEAKVMTRLQHQNLVQLY 488
+LE++G G FG V + + + + +VA ++K + + + I E +++ + +H N+V+ Y
Sbjct: 4 ILEKIGKGGFGEVYKARHKRTGKEVAIKVIKLESKEKKEKIINEIQILKKCKHPNIVKYY 63
Query: 489 GVCSKHRPIYIV 500
G K ++IV
Sbjct: 64 GSYLKKDELWIV 75
>gnl|CDD|177649 PLN00009, PLN00009, cyclin-dependent kinase A; Provisional.
Length = 294
Score = 41.0 bits (96), Expect = 0.001
Identities = 19/73 (26%), Positives = 40/73 (54%), Gaps = 6/73 (8%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDD------FIEEAKVMTRLQHQNLVQL 487
+E++G G +GVV + + R + + +K+ + ++D I E ++ +QH N+V+L
Sbjct: 7 VEKIGEGTYGVVYKARDRVTNETIALKKIRLEQEDEGVPSTAIREISLLKEMQHGNIVRL 66
Query: 488 YGVCSKHRPIYIV 500
V + +Y+V
Sbjct: 67 QDVVHSEKRLYLV 79
>gnl|CDD|198200 cd10337, SH2_BCAR3, Src homology 2 (SH2) domain in the Breast
Cancer Anti-estrogen Resistance protein 3. BCAR3 is
part of a growing family of guanine nucleotide exchange
factors is responsible for activation of Ras-family
GTPases, including Sos1 and 2, GRF1 and 2,
CalDAG-GEF/GRP1-4, C3G, cAMP-GEF/Epac 1 and 2, PDZ-GEFs,
MR-GEF, RalGDS family members, RalGPS, RasGEF, Smg GDS,
and phospholipase C(epsilon). 12102558 21262352 BCAR3
binds to the carboxy-terminus of BCAR1/p130Cas, a focal
adhesion adapter protein. Over expression of BCAR1
(p130Cas) and BCAR3 induces estrogen independent growth
in normally estrogen-dependent cell lines. They have
been linked to resistance to anti-estrogens in breast
cancer, Rac activation, and cell motility, though the
BCAR3/p130Cas complex is not required for this activity
in BCAR3. Many BCAR3-mediated signaling events in
epithelial and mesenchymal cells are independent of
p130Cas association. Structurally these proteins contain
a single SH2 domain upstream of their RasGEF domain,
which is responsible for the ability of BCAR3 to enhance
p130Cas over-expression-induced migration. In general
SH2 domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 136
Score = 38.9 bits (91), Expect = 0.001
Identities = 22/51 (43%), Positives = 31/51 (60%), Gaps = 4/51 (7%)
Query: 256 AWYVGDMSRQRAESILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPHPHVK 305
AWY G + RQ AES++++ EG F+VR+S S+ G Y L+ K H K
Sbjct: 7 AWYHGRIPRQVAESLVQR---EGDFLVRDSLSSPGDYVLTCRWKGQPLHFK 54
>gnl|CDD|212997 cd12064, SH3_GRAF, Src Homology 3 domain of GTPase Regulator
Associated with Focal adhesion kinase. GRAF, also
called Rho GTPase activating protein 26 (ARHGAP26),
Oligophrenin-1-like (OPHN1L) or GRAF1, is a GAP with
activity towards RhoA and Cdc42 and is only weakly
active towards Rac1. It influences Rho-mediated
cytoskeletal rearrangements and binds focal adhesion
kinase (FAK), which is a critical component of integrin
signaling. It is essential for the major
clathrin-independent endocytic pathway mediated by
pleiomorphic membranes. GRAF contains an N-terminal BAR
domain, followed by a Pleckstrin homology (PH) domain, a
Rho GAP domain, and a C-terminal SH3 domain. The SH3
domain of GRAF binds PKNbeta, a target of the small
GTPase Rho. SH3 domains bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs; they play a role in the regulation of
enzymes by intramolecular interactions, changing the
subcellular localization of signal pathway components
and mediate multiprotein complex assemblies.
Length = 56
Score = 36.6 bits (84), Expect = 0.001
Identities = 19/50 (38%), Positives = 25/50 (50%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
ALY KA +LS G ++ + +QE W NG G IP NYV+
Sbjct: 5 ALYACKAEHDSELSFTAGTVFDNVHPSQEPGWLEGTLNGKTGLIPENYVE 54
>gnl|CDD|198196 cd09943, SH2_Nck_family, Src homology 2 (SH2) domain found in the
Nck family. Nck proteins are adaptors that modulate
actin cytoskeleton dynamics by linking proline-rich
effector molecules to tyrosine kinases or phosphorylated
signaling intermediates. There are two members known in
this family: Nck1 (Nckalpha) and Nck2 (Nckbeta and
Growth factor receptor-bound protein 4 (Grb4)). They
are characterized by having 3 SH3 domains and a
C-terminal SH2 domain. Nck1 and Nck2 have overlapping
functions as determined by gene knockouts. Both bind
receptor tyrosine kinases and other
tyrosine-phosphorylated proteins through their SH2
domains. In addition they also bind distinct targets.
Neuronal signaling proteins: EphrinB1, EphrinB2, and
Disabled-1 (Dab-1) all bind to Nck-2 exclusively. And in
the case of PDGFR, Tyr(P)751 binds to Nck1 while
Tyr(P)1009 binds to Nck2. Nck1 and Nck2 have a role in
the infection process of enteropathogenic Escherichia
coli (EPEC). Their SH3 domains are involved in
recruiting and activating the N-WASP/Arp2/3 complex
inducing actin polymerization resulting in the
production of pedestals, dynamic bacteria-presenting
protrusions of the plasma membrane. A similar thing
occurs in the vaccinia virus where motile plasma
membrane projections are formed beneath the virus.
Recently it has been shown that the SH2 domains of both
Nck1 and Nck2 bind the G-protein coupled receptor
kinase-interacting protein 1 (GIT1) in a
phosphorylation-dependent manner. In general SH2 domains
are involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 93
Score = 37.5 bits (87), Expect = 0.001
Identities = 20/60 (33%), Positives = 34/60 (56%), Gaps = 2/60 (3%)
Query: 255 KAWYVGDMSRQRAESILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNS 313
+ WY G ++R +AE++L + EG F++R+S S G Y++SL + H K + N
Sbjct: 1 QPWYYGRITRHQAETLLNEHGHEGDFLIRDSESNPGDYSVSLKAPGRNKHFK-VQVVDNV 59
>gnl|CDD|212950 cd12017, SH3_Tks_3, Third Src homology 3 domain of Tyrosine kinase
substrate (Tks) proteins. Tks proteins are Src
substrates and scaffolding proteins that play important
roles in the formation of podosomes and invadopodia, the
dynamic actin-rich structures that are related to cell
migration and cancer cell invasion. Vertebrates contain
two Tks proteins, Tks4 (Tyr kinase substrate with four
SH3 domains) and Tks5 (Tyr kinase substrate with five
SH3 domains), which display partially overlapping but
non-redundant functions. Both associate with the ADAMs
family of transmembrane metalloproteases, which function
as sheddases and mediators of cell and matrix
interactions. Tks5 interacts with N-WASP and Nck, while
Tks4 is essential for the localization of MT1-MMP
(membrane-type 1 matrix metalloproteinase) to
invadopodia. Tks proteins contain an N-terminal Phox
homology (PX) domain and four or five SH3 domains. This
model characterizes the third SH3 domain of Tks
proteins. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 36.3 bits (84), Expect = 0.002
Identities = 17/47 (36%), Positives = 28/47 (59%), Gaps = 1/47 (2%)
Query: 134 FKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
F+A +S +KG + EV+D WW VK +G G+ PS+Y+++
Sbjct: 8 FQATIQDGISFQKGQKVEVIDKNPSGWWYVK-IDGKEGWAPSSYIEK 53
Score = 29.7 bits (67), Expect = 0.33
Identities = 12/31 (38%), Positives = 17/31 (54%)
Query: 81 FKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK 111
F+A +S +KG + EV+D WW VK
Sbjct: 8 FQATIQDGISFQKGQKVEVIDKNPSGWWYVK 38
>gnl|CDD|212782 cd11848, SH3_SLAP-like, Src homology 3 domain of Src-Like Adaptor
Proteins. SLAPs are adaptor proteins with limited
similarity to Src family tyrosine kinases. They contain
an N-terminal SH3 domain followed by an SH2 domain, and
a unique C-terminal sequence. They function in
regulating the signaling, ubiquitination, and
trafficking of T-cell receptor (TCR) and B-cell receptor
(BCR) components. Vertebrates contain two SLAPs, named
SLAP (or SLA1) and SLAP2 (or SLA2). SLAP has been shown
to interact with the EphA receptor, EpoR, Lck, PDGFR,
Syk, CD79a, among others, while SLAP2 interacts with
CSF1R. Both SLAPs interact with c-Cbl, LAT, CD247, and
Zap70. SLAP modulates TCR surface expression levels as
well as surface and total BCR levels. As an adaptor to
c-Cbl, SLAP increases the ubiquitination, intracellular
retention, and targeted degradation of the BCR complex
components. SLAP2 plays a role in c-Cbl-dependent
regulation of CSF1R, a tyrosine kinase important for
myeloid cell growth and differentiation. The SH3 domain
of SLAP forms a complex with v-Abl. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 55
Score = 36.4 bits (84), Expect = 0.002
Identities = 18/53 (33%), Positives = 27/53 (50%), Gaps = 2/53 (3%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKV-KDKNGSVGYIPSNYV 178
+VAL + + +LSL G ++ D + WWKV + G YIPS +V
Sbjct: 1 TLVALGDYPSGGPAELSLRLGEPLTIVSDEGD-WWKVLSEVTGRESYIPSVHV 52
>gnl|CDD|212772 cd11838, SH3_Intersectin_3, Third Src homology 3 domain (or SH3C)
of Intersectin. Intersectins (ITSNs) are adaptor
proteins that function in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction.
They are essential for initiating clathrin-coated pit
formation. They bind to many proteins through their
multidomain structure and facilitate the assembly of
multimeric complexes. Vertebrates contain two ITSN
proteins, ITSN1 and ITSN2, which exist in alternatively
spliced short and long isoforms. The short isoforms
contain two Eps15 homology domains (EH1 and EH2), a
coiled-coil region and five SH3 domains (SH3A-E), while
the long isoforms, in addition, contain RhoGEF (also
called Dbl-homologous or DH), Pleckstrin homology (PH)
and C2 domains. ITSN1 and ITSN2 are both widely
expressed, with variations depending on tissue type and
stage of development. The third SH3 domain (or SH3C) of
ITSN1 has been shown to bind many proteins including
dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1,
and WNK, among others. The SH3C of ITSN2 has been shown
to bind the K15 protein of Kaposi's sarcoma-associated
herpesvirus. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 52
Score = 36.2 bits (84), Expect = 0.002
Identities = 20/54 (37%), Positives = 28/54 (51%), Gaps = 6/54 (11%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK--VKDKNGSVGYIPSNYVKE 180
+ALYP+++ E GDL+ G V E WW + D+ G PSNYV+
Sbjct: 3 IALYPYESNEPGDLTFNAGDVILVTKKDGE-WWTGTIGDRT---GIFPSNYVRP 52
Score = 29.3 bits (66), Expect = 0.46
Identities = 16/43 (37%), Positives = 23/43 (53%), Gaps = 3/43 (6%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK--VKDKNGI 116
+ALYP+++ E GDL+ G V E WW + D+ GI
Sbjct: 3 IALYPYESNEPGDLTFNAGDVILVTKKDGE-WWTGTIGDRTGI 44
>gnl|CDD|198197 cd09944, SH2_Grb7_family, Src homology 2 (SH2) domain found in the
growth factor receptor bound, subclass 7 (Grb7)
proteins. The Grb family binds to the epidermal growth
factor receptor (EGFR, erbB1) via their SH2 domains.
There are 3 members of the Grb7 family of proteins:
Grb7, Grb10, and Grb14. They are composed of an
N-terminal Proline-rich domain, a Ras Associating-like
(RA) domain, a Pleckstrin Homology (PH) domain, a
phosphotyrosine interaction region (PIR, BPS) and a
C-terminal SH2 domain. The SH2 domains of Grb7, Grb10
and Grb14 preferentially bind to a different RTK. Grb7
binds strongly to the erbB2 receptor, unlike Grb10 and
Grb14 which bind weakly to it. Grb14 binds to Fibroblast
Growth Factor Receptor (FGFR). Grb10 has been shown to
interact with many different proteins, including the
insulin and IGF1 receptors, platelet-derived growth
factor (PDGF) receptor-beta, Ret, Kit, Raf1 and MEK1,
and Nedd4. Grb7 family proteins are phosphorylated on
serine/threonine as well as tyrosine residues. In
general SH2 domains are involved in signal transduction.
They typically bind pTyr-containing ligands via two
surface pockets, a pTyr and hydrophobic binding pocket,
allowing proteins with SH2 domains to localize to
tyrosine phosphorylated sites.
Length = 108
Score = 37.8 bits (88), Expect = 0.002
Identities = 33/133 (24%), Positives = 51/133 (38%), Gaps = 34/133 (25%)
Query: 257 WYVGDMSRQRAESILKQE-DKEGCFVVRNSSTK-GLYTLSLYTKVPHPHVKHYHIKQNSR 314
W+ G +SR A +++Q+ +G F+VR S + G + LSL +KHY I
Sbjct: 7 WFHGGISRDEAARLIRQQGLVDGVFLVRESQSNPGAFVLSLKH---GQKIKHYQI----- 58
Query: 315 GEFFLSEKHCCHSIPEVKDKEGCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHIKQNSRGE 374
IP + + F + + TK L L V+ Y Q + G
Sbjct: 59 -------------IPIEDEGQWYFTLDDGVTKFYDLLQL--------VEFY---QLNAGS 94
Query: 375 FFLSEKHCCHSIP 387
KH C +
Sbjct: 95 LPTRLKHYCTRVA 107
>gnl|CDD|198265 cd10402, SH2_C-SH2_Zap70, C-terminal Src homology 2 (SH2) domain
found in Zeta-chain-associated protein kinase 70
(ZAP-70). ZAP-70 and Syk comprise a family of
hematopoietic cell specific protein tyrosine kinases
(PTKs) that are required for antigen and antibody
receptor function. ZAP-70 is expressed in T and natural
killer (NK) cells and Syk is expressed in B cells, mast
cells, polymorphonuclear leukocytes, platelets,
macrophages, and immature T cells. They are required for
the proper development of T and B cells, immune
receptors, and activating NK cells. They consist of two
N-terminal Src homology 2 (SH2) domains and a C-terminal
kinase domain separated from the SH2 domains by a linker
or hinge region. Phosphorylation of both tyrosine
residues within the Immunoreceptor Tyrosine-based
Activation Motifs (ITAM; consensus sequence
Yxx[LI]x(7,8)Yxx[LI]) by the Src-family PTKs is required
for efficient interaction of ZAP-70 and Syk with the
receptor subunits and for receptor function. ZAP-70
forms two phosphotyrosine binding pockets, one of which
is shared by both SH2 domains. In Syk the two SH2
domains do not form such a phosphotyrosine-binding site.
The SH2 domains here are believed to function
independently. In addition, the two SH2 domains of Syk
display flexibility in their relative orientation,
allowing Syk to accommodate a greater variety of spacing
sequences between the ITAM phosphotyrosines and singly
phosphorylated non-classical ITAM ligands. This model
contains the C-terminus SH2 domains of Zap70. In general
SH2 domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 105
Score = 37.6 bits (87), Expect = 0.002
Identities = 24/68 (35%), Positives = 33/68 (48%), Gaps = 6/68 (8%)
Query: 256 AWYVGDMSRQRAESILKQ-EDKEGCFVVRNSSTKGLYTLSL-YTKVPHPHVKHYHIKQNS 313
WY G ++R AE L +G F++R G Y LSL Y K V HY I Q+
Sbjct: 11 PWYHGSIARDEAERRLYSGAQPDGKFLLRERKESGTYALSLVYGKT----VYHYRIDQDK 66
Query: 314 RGEFFLSE 321
G++ + E
Sbjct: 67 SGKYSIPE 74
Score = 32.2 bits (73), Expect = 0.14
Identities = 23/74 (31%), Positives = 36/74 (48%), Gaps = 5/74 (6%)
Query: 335 EGCFVVRNSSTKGLYTLSL-YTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVNYH 393
+G F++R G Y LSL Y K V HY I Q+ G++ + E ++ ++V Y
Sbjct: 33 DGKFLLRERKESGTYALSLVYGKT----VYHYRIDQDKSGKYSIPEGTKFDTLWQLVEYL 88
Query: 394 RHNSGGLASRLKTS 407
+ GL L+ S
Sbjct: 89 KLKPDGLIFVLRES 102
>gnl|CDD|198224 cd10361, SH2_Fps_family, Src homology 2 (SH2) domain found in
feline sarcoma, Fujinami poultry sarcoma, and
fes-related (Fes/Fps/Fer) proteins. The Fps family
consists of members Fps/Fes and Fer/Flk/Tyk3. They are
cytoplasmic protein-tyrosine kinases implicated in
signaling downstream from cytokines, growth factors and
immune receptors. Fes/Fps/Fer contains three
coiled-coil regions, an SH2 (Src-homology-2) and a TK
(tyrosine kinase catalytic) domain signature. Members
here include: Fps/Fes, Fer, Kin-31, and In general SH2
domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 90
Score = 37.1 bits (87), Expect = 0.002
Identities = 22/78 (28%), Positives = 39/78 (50%), Gaps = 11/78 (14%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSSTKGL----YTLSLYTKVPHPHVKHYHIKQN 312
+Y G + R+ AE +LK +G F+VR + KG LS+ ++H+ I ++
Sbjct: 8 YYHGLLPREDAEELLK---NDGDFLVRKTEPKGGGKRKLVLSVRWDG---KIRHFVINRD 61
Query: 313 SRGEFFLSEKHCCHSIPE 330
G++++ E SI E
Sbjct: 62 DGGKYYI-EGKSFKSISE 78
Score = 35.6 bits (83), Expect = 0.007
Identities = 17/68 (25%), Positives = 34/68 (50%), Gaps = 8/68 (11%)
Query: 334 KEGCFVVRNSSTKGL----YTLSLYTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEV 389
+G F+VR + KG LS+ ++H+ I ++ G++++ E SI E+
Sbjct: 24 NDGDFLVRKTEPKGGGKRKLVLSVRWDG---KIRHFVINRDDGGKYYI-EGKSFKSISEL 79
Query: 390 VNYHRHNS 397
+NY++
Sbjct: 80 INYYQKTK 87
>gnl|CDD|173646 cd05087, PTKc_Aatyk1_Aatyk3, Catalytic domain of the Protein
Tyrosine Kinases, Apoptosis-associated tyrosine kinases
1 and 3. Protein Tyrosine Kinase (PTK) family;
Apoptosis-associated tyrosine kinase 1 (Aatyk1) and
Aatyk3; catalytic (c) domain. The PTKc family is part of
a larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Aatyk1 and Aatyk3 are
members of the Aatyk subfamily of proteins. Aatyk3 is a
receptor kinase containing a transmembrane segment and a
long C-terminal cytoplasmic tail with a catalytic
domain. Aatyk1 has a similar domain arrangement but
without the transmembrane segment and is thus, a
cytoplasmic (or nonreceptor) kinase. The expression of
Aatyk1 (also referred simply as Aatyk) is upregulated
during growth arrest and apoptosis in myeloid cells.
Aatyk1 has been implicated in neural differentiation,
and is a regulator of the Na-K-2Cl cotransporter, a
membrane protein involved in cell proliferation and
survival, epithelial transport, and blood pressure
control. The function of Aatyk3 is still unknown.
Length = 269
Score = 39.5 bits (92), Expect = 0.002
Identities = 26/93 (27%), Positives = 45/93 (48%), Gaps = 3/93 (3%)
Query: 166 KNGSVGYIPSNYVKEKELLGLQKYDDVNGLTLELIHQV---LNYTRFSSKSDVWAYGVLM 222
K G G + Y ++ + Q + + + EL+ +V L + +S+VW+ GV +
Sbjct: 140 KIGDYGLSHNKYKEDYYVTPDQLWVPLRWIAPELVDEVHGNLLVVDQTKESNVWSLGVTI 199
Query: 223 WEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPK 255
WE+F G PY L + +V+ R L+ PK
Sbjct: 200 WELFELGSQPYRHLSDEQVLTYTVREQQLKLPK 232
Score = 36.1 bits (83), Expect = 0.035
Identities = 24/75 (32%), Positives = 38/75 (50%), Gaps = 7/75 (9%)
Query: 435 EELGSGQFGVVRRGKWRGSIDVA--MMKE-----GTMSEDDFIEEAKVMTRLQHQNLVQL 487
+E+G+G FG V G+ A ++KE + F+EEA+ LQH NL+Q
Sbjct: 1 KEIGNGWFGKVILGEVNSGYTPAQVVVKELRVSASVQEQMKFLEEAQPYRSLQHSNLLQC 60
Query: 488 YGVCSKHRPIYIVTD 502
G C++ P +V +
Sbjct: 61 LGQCTEVTPYLLVME 75
>gnl|CDD|212902 cd11969, SH3_PLCgamma2, Src homology 3 domain of Phospholipase C
(PLC) gamma 2. PLCgamma2 is primarily expressed in
haematopoietic cells, specifically in B cells. It is
activated by tyrosine phosphorylation by B cell receptor
(BCR) kinases and is recruited to the plasma membrane
where its substrate is located. It is required in
pre-BCR signaling and in the maturation of B cells. PLCs
catalyze the hydrolysis of phosphatidylinositol
(4,5)-bisphosphate [PtdIns(4,5)P2] to produce
Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3
initiates the calcium signaling cascade while DAG
functions as an activator of PKC. PLCgamma contains a
Pleckstrin homology (PH) domain followed by an
elongation factor (EF) domain, two catalytic regions of
PLC domains that flank two tandem SH2 domains, followed
by a SH3 domain and C2 domain. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 36.0 bits (83), Expect = 0.002
Identities = 22/54 (40%), Positives = 28/54 (51%), Gaps = 2/54 (3%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVG-YIPSNYVKE 180
V ALY ++A +LS KGA + WWK D G V Y PSNYV++
Sbjct: 2 VKALYDYRAKRSDELSFCKGALIHNVSKETGGWWK-GDYGGKVQHYFPSNYVED 54
Score = 27.1 bits (60), Expect = 3.4
Identities = 13/35 (37%), Positives = 17/35 (48%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK 109
V ALY ++A +LS KGA + WWK
Sbjct: 2 VKALYDYRAKRSDELSFCKGALIHNVSKETGGWWK 36
>gnl|CDD|212859 cd11926, SH3_SH3RF1_3, Third Src Homology 3 domain of SH3 domain
containing ring finger 1, an E3 ubiquitin-protein
ligase. SH3RF1 is also called POSH (Plenty of SH3s) or
SH3MD2 (SH3 multiple domains protein 2). It is a
scaffold protein that acts as an E3 ubiquitin-protein
ligase. It plays a role in calcium homeostasis through
the control of the ubiquitin domain protein Herp. It may
also have a role in regulating death receptor mediated
and JNK mediated apoptosis. SH3RF1 also enhances the
ubiquitination of ROMK1 potassium channel resulting in
its increased endocytosis. It contains an N-terminal
RING finger domain and four SH3 domains. This model
represents the third SH3 domain, located in the middle,
of SH3RF1. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 35.7 bits (82), Expect = 0.003
Identities = 18/53 (33%), Positives = 27/53 (50%), Gaps = 1/53 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK-VKDKNGSVGYIPSNYV 178
V VA+YP+ + +L L KG + V + Q+ W+K +G P NYV
Sbjct: 1 VYVAIYPYTPRKEDELELRKGEMFLVFERCQDGWFKGTSMHTSKIGVFPGNYV 53
Score = 28.8 bits (64), Expect = 0.76
Identities = 13/36 (36%), Positives = 21/36 (58%)
Query: 74 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK 109
V VA+YP+ + +L L KG + V + Q+ W+K
Sbjct: 1 VYVAIYPYTPRKEDELELRKGEMFLVFERCQDGWFK 36
>gnl|CDD|212932 cd11999, SH3_PACSIN_like, Src homology 3 domain of an unknown
subfamily of proteins with similarity to Protein kinase
C and Casein kinase Substrate in Neurons (PACSIN)
proteins. PACSINs, also called Synaptic
dynamin-associated proteins (Syndapins), act as
regulators of cytoskeletal and membrane dynamics. They
bind both dynamin and Wiskott-Aldrich syndrome protein
(WASP), and may provide direct links between the actin
cytoskeletal machinery through WASP and
dynamin-dependent endocytosis. Vetebrates harbor three
isoforms with distinct expression patterns and specific
functions. PACSINs contain an N-terminal F-BAR domain
and a C-terminal SH3 domain. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 56
Score = 35.7 bits (82), Expect = 0.003
Identities = 20/53 (37%), Positives = 30/53 (56%), Gaps = 3/53 (5%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEY-EVMDDTQEHW-WKVKDKNGSVGYIPSNYV 178
V A+Y + E +LS + G E +V D+ ++ W V D G+VG P+NYV
Sbjct: 4 VRAVYDYTGQEPDELSFKAGEELLKVEDEDEQGWCKGVTDG-GAVGLYPANYV 55
>gnl|CDD|212718 cd11784, SH3_SH3RF2_3, Third Src Homology 3 domain of SH3 domain
containing ring finger 2. SH3RF2 is also called POSHER
(POSH-eliminating RING protein) or HEPP1 (heart protein
phosphatase 1-binding protein). It acts as an
anti-apoptotic regulator of the JNK pathway by binding
to and promoting the degradation of SH3RF1 (or POSH), a
scaffold protein that is required for pro-apoptotic JNK
activation. It may also play a role in cardiac functions
together with protein phosphatase 1. SH3RF2 contains an
N-terminal RING finger domain and three SH3 domains.
This model represents the third SH3 domain, located in
the middle, of SH3RF2. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 35.5 bits (82), Expect = 0.003
Identities = 20/51 (39%), Positives = 27/51 (52%), Gaps = 1/51 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK-VKDKNGSVGYIPSNYV 178
VAL+ + A +L L+KG V+ QE W + + G VG PSNYV
Sbjct: 3 VALHSYSAHRPEELELQKGEGVRVLGKFQEGWLRGLSLVTGRVGIFPSNYV 53
>gnl|CDD|212911 cd11978, SH3_VAV3_2, C-terminal (or second) Src homology 3 domain
of VAV3 protein. VAV3 is ubiquitously expressed and
functions as a phosphorylation-dependent guanine
nucleotide exchange factor (GEF) for RhoA, RhoG, and
Rac1. It has been implicated to function in the
hematopoietic, bone, cerebellar, and cardiovascular
systems. VAV3 is essential in axon guidance in neurons
that control blood pressure and respiration. It is
overexpressed in prostate cancer cells and it plays a
role in regulating androgen receptor transcriptional
activity. VAV proteins contain several domains that
enable their function: N-terminal calponin homology
(CH), acidic, RhoGEF (also called Dbl-homologous or DH),
Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two
SH3 domains. The SH3 domain of VAV is involved in the
localization of proteins to specific sites within the
cell, by interacting with proline-rich sequences within
target proteins. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 56
Score = 35.8 bits (82), Expect = 0.003
Identities = 20/55 (36%), Positives = 31/55 (56%), Gaps = 2/55 (3%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEV-MDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
+ +A Y F A + +LSL KG ++ + WW+ + NG VG+ PS YV+E
Sbjct: 2 IAIARYDFCARDMRELSLLKGDVVKIYTKMSTNGWWR-GEVNGRVGWFPSTYVEE 55
>gnl|CDD|173744 cd07847, STKc_CDKL1_4, Catalytic domain of the Serine/Threonine
Kinases, Cyclin-Dependent protein Kinase Like 1 and 4.
Serine/Threonine Kinases (STKs), Cyclin-dependent
protein kinase like 1 (CDKL1) and CDKL4 subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDKL1 and CDKL4
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. CDKs belong to a large family of STKs that are
regulated by their cognate cyclins. Together, they are
involved in the control of cell-cycle progression,
transcription, and neuronal function. CDKL1, also called
p42 KKIALRE, is a glial protein that is upregulated in
gliosis. It is present in neuroblastoma and A431 human
carcinoma cells, and may be implicated in neoplastic
transformation. The function of CDKL4 is unknown.
Length = 286
Score = 39.3 bits (92), Expect = 0.003
Identities = 22/73 (30%), Positives = 41/73 (56%), Gaps = 6/73 (8%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDDFI------EEAKVMTRLQHQNLVQL 487
L ++G G +GVV + + R + + +K+ SEDD + E +++ +L+H NLV L
Sbjct: 6 LSKIGEGSYGVVFKCRNRETGQIVAIKKFVESEDDPVIKKIALREIRMLKQLKHPNLVNL 65
Query: 488 YGVCSKHRPIYIV 500
V + R +++V
Sbjct: 66 IEVFRRKRKLHLV 78
Score = 30.0 bits (68), Expect = 2.8
Identities = 12/45 (26%), Positives = 23/45 (51%), Gaps = 2/45 (4%)
Query: 5 SLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRETK 49
++LN L ++ G L+ + Q + + + +HN IHR+ K
Sbjct: 85 TVLNELEKNPR--GVPEHLIKKIIWQTLQAVNFCHKHNCIHRDVK 127
>gnl|CDD|133212 cd05081, PTKc_Jak2_Jak3_rpt2, Catalytic (repeat 2) domain of the
Protein Tyrosine Kinases, Janus kinases 2 and 3.
Protein Tyrosine Kinase (PTK) family; Janus kinase 2
(Jak2) and Jak3; catalytic (c) domain (repeat 2). The
PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Jak2 and
Jak3 are members of the Janus kinase (Jak) subfamily of
proteins, which are cytoplasmic (or nonreceptor) tyr
kinases containing an N-terminal FERM domain, followed
by a Src homology 2 (SH2) domain, a pseudokinase domain,
and a C-terminal catalytic tyr kinase domain. Jaks are
crucial for cytokine receptor signaling. They are
activated by autophosphorylation upon cytokine-induced
receptor aggregation, and subsequently trigger
downstream signaling events such as the phosphorylation
of signal transducers and activators of transcription
(STATs). Jak2 is widely expressed in many tissues while
Jak3 is expressed only in hematopoietic cells. Jak2 is
essential for the signaling of hormone-like cytokines
such as growth hormone, erythropoietin, thrombopoietin,
and prolactin, as well as some IFNs and cytokines that
signal through the IL-3 and gp130 receptors. Jak3 binds
the shared receptor subunit common gamma chain and thus,
is essential in the signaling of cytokines that use it
such as IL-2, IL-4, IL-7, IL-9, IL-15, and IL-21.
Disruption of Jak2 in mice results in an embryonic
lethal phenotype with multiple defects including
erythropoietic and cardiac abnormalities. It is the only
Jak gene that results in a lethal phenotype when
disrupted in mice. A mutation in the pseudokinase domain
of Jak2, V617F, is present in many myeloproliferative
diseases, including almost all patients with
polycythemia vera, and 50% of patients with essential
thrombocytosis and myelofibrosis. Jak3 is important in
lymphoid development and myeloid cell differentiation.
Inactivating mutations in Jak3 have been reported in
humans with severe combined immunodeficiency (SCID).
Length = 284
Score = 39.0 bits (91), Expect = 0.003
Identities = 19/44 (43%), Positives = 25/44 (56%), Gaps = 2/44 (4%)
Query: 4 GSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRE 47
GSL +YL++H L LL Q+CKGM YL Y+HR+
Sbjct: 92 GSLRDYLQKHRERLDHRK--LLLYASQICKGMEYLGSKRYVHRD 133
Score = 37.1 bits (86), Expect = 0.017
Identities = 12/24 (50%), Positives = 20/24 (83%)
Query: 204 LNYTRFSSKSDVWAYGVLMWEVFT 227
L ++FS SDVW++GV+++E+FT
Sbjct: 183 LTESKFSVASDVWSFGVVLYELFT 206
Score = 33.6 bits (77), Expect = 0.21
Identities = 22/69 (31%), Positives = 33/69 (47%), Gaps = 8/69 (11%)
Query: 431 LMLLEELGSGQFGVVRRGKWRGSID-----VAMMK---EGTMSEDDFIEEAKVMTRLQHQ 482
L +++LG G FG V ++ D VA+ K DF E +++ LQH
Sbjct: 6 LKFIQQLGKGNFGSVELCRYDPLQDNTGEVVAVKKLQHSTAEHLRDFEREIEILKSLQHD 65
Query: 483 NLVQLYGVC 491
N+V+ GVC
Sbjct: 66 NIVKYKGVC 74
>gnl|CDD|198255 cd10392, SH2_SHF, Src homology 2 domain found in SH2
domain-containing adapter protein F (SHF). SHF is
thought to play a role in PDGF-receptor signaling and
regulation of apoptosis. SHF is mainly expressed in
skeletal muscle, brain, liver, prostate, testis, ovary,
small intestine, and colon. SHF contains four putative
tyrosine phosphorylation sites and an SH2 domain. In
general SH2 domains are involved in signal transduction.
They typically bind pTyr-containing ligands via two
surface pockets, a pTyr and hydrophobic binding pocket,
allowing proteins with SH2 domains to localize to
tyrosine phosphorylated sites.
Length = 98
Score = 36.6 bits (84), Expect = 0.004
Identities = 26/77 (33%), Positives = 43/77 (55%), Gaps = 6/77 (7%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHIKQNSRG 315
WY G +SR AE++L+ KE ++VRNS T K ++LSL + H+K K++
Sbjct: 3 WYHGAISRTDAENLLRL-CKEASYLVRNSETSKNDFSLSLKSSQGFMHMKLSRTKEH--- 58
Query: 316 EFFLSEKHCC-HSIPEV 331
++ L + S+PE+
Sbjct: 59 KYVLGQNSPPFSSVPEI 75
>gnl|CDD|212894 cd11961, SH3_Abp1_fungi_C2, Second C-terminal Src homology 3 domain
of Fungal Actin-binding protein 1. Abp1 is an adaptor
protein that functions in receptor-mediated endocytosis
and vesicle trafficking. It contains an N-terminal
actin-binding module, the actin-depolymerizing factor
(ADF) homology domain, a central proline-rich region,
and a C-terminal SH3 domain (many yeast Abp1 proteins
contain two C-terminal SH3 domains). Yeast Abp1 also
contains two acidic domains that bind directly to the
Arp2/3 complex, which is required to initiate actin
polymerization. The SH3 domain of yeast Abp1 binds and
localizes the kinases, Ark1p and Prk1p, which facilitate
actin patch disassembly following vesicle
internalization. It also mediates the localization to
the actin patch of the synaptojanin-like protein, Sjl2p,
which plays a key role in endocytosis. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 53
Score = 35.2 bits (81), Expect = 0.004
Identities = 17/53 (32%), Positives = 28/53 (52%), Gaps = 1/53 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
ALY + A E +LS + + ++ + WW + + +GS G PSNYV+
Sbjct: 2 AKALYDYDAAEDNELSFFENDKIINIEFVDDDWW-LGECHGSRGLFPSNYVEL 53
>gnl|CDD|173743 cd07846, STKc_CDKL2_3, Catalytic domain of the Serine/Threonine
Kinases, Cyclin-Dependent protein Kinase Like 2 and 3.
Serine/Threonine Kinases (STKs), Cyclin-dependent
protein kinase like 2 (CDKL2) and CDKL3 subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDKL2 and CDKL3
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. CDKs belong to a large family of STKs that are
regulated by their cognate cyclins. Together, they are
involved in the control of cell-cycle progression,
transcription, and neuronal function. CDKL2, also called
p56 KKIAMRE, is expressed in testis, kidney, lung, and
brain. It functions mainly in mature neurons and plays
an important role in learning and memory. Inactivation
of CDKL3, also called NKIAMRE (NKIATRE in rat), by
translocation is associated with mild mental
retardation. It has been reported that CDKL3 is lost in
leukemic cells having a chromosome arm 5q deletion, and
may contribute to the transformed phenotype.
Length = 286
Score = 38.9 bits (91), Expect = 0.004
Identities = 21/73 (28%), Positives = 41/73 (56%), Gaps = 6/73 (8%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDD------FIEEAKVMTRLQHQNLVQL 487
L +G G +G+V + K + + + +K+ SEDD + E +++ +L+H+NLV L
Sbjct: 6 LGLVGEGSYGMVMKCKHKETGQIVAIKKFLESEDDKMVKKIAMREIRMLKQLRHENLVNL 65
Query: 488 YGVCSKHRPIYIV 500
V + + +Y+V
Sbjct: 66 IEVFRRKKRLYLV 78
Score = 29.3 bits (66), Expect = 5.1
Identities = 12/45 (26%), Positives = 24/45 (53%), Gaps = 2/45 (4%)
Query: 5 SLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRETK 49
++L+ L ++ N L + + Q+ +G+ + HN IHR+ K
Sbjct: 85 TVLDDLEKYPNGLDES--RVRKYLFQILRGIEFCHSHNIIHRDIK 127
>gnl|CDD|173757 cd08217, STKc_Nek2, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 2. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 2 (Nek2) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek2 subfamily is
one of a family of 11 different Neks (Nek1-11) that are
involved in cell cycle control. The Nek family is part
of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. The Nek2
subfamily includes Aspergillus nidulans NIMA kinase, the
founding member of the Nek family, which was identified
in a screen for cell cycle mutants prevented from
entering mitosis. NIMA is essential for mitotic entry
and progression through mitosis, and its degradation is
essential for mitotic exit. NIMA is involved in nuclear
membrane fission. Vertebrate Nek2 is a cell
cycle-regulated STK, localized in centrosomes and
kinetochores, that regulates centrosome splitting at the
G2/M phase. It also interacts with other mitotic kinases
such as Polo-like kinase 1 and may play a role in
spindle checkpoint. An increase in the expression of the
human NEK2 gene is strongly associated with the
progression of non-Hodgkin lymphoma.
Length = 265
Score = 38.8 bits (91), Expect = 0.004
Identities = 22/78 (28%), Positives = 42/78 (53%), Gaps = 8/78 (10%)
Query: 433 LLEELGSGQFGVVRRGKWRGSIDVAMMKE---GTMSEDD---FIEEAKVMTRLQHQNLVQ 486
+LE +G G FG VR+ + + + + KE G M+E + + E ++ L+H N+V+
Sbjct: 4 VLETIGKGSFGTVRKVRRKSDGKILVWKEIDYGNMTEKEKQQLVSEVNILRELKHPNIVR 63
Query: 487 LYG--VCSKHRPIYIVTD 502
Y + ++ +YIV +
Sbjct: 64 YYDRIIDRSNQTLYIVME 81
Score = 30.3 bits (69), Expect = 2.4
Identities = 14/55 (25%), Positives = 28/55 (50%), Gaps = 3/55 (5%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKN-TEVVDRVQRGIILEKPK 255
+ LN+ + KSD+W+ G L++E+ C P +N ++ +++ G P
Sbjct: 180 EQLNHMSYDEKSDIWSLGCLIYEL--CALSPPFTARNQLQLASKIKEGKFRRIPY 232
>gnl|CDD|198221 cd10358, SH2_PTK6_Brk, Src homology 2 domain found in
protein-tyrosine kinase-6 (PTK6) which is also known as
breast tumor kinase (Brk). Human protein-tyrosine
kinase-6 (PTK6, also known as breast tumor kinase (Brk))
is a member of the non-receptor protein-tyrosine kinase
family and is expressed in two-thirds of all breast
tumors. PTK6 (9). PTK6 contains a SH3 domain, a SH2
domain, and catalytic domains. For the case of the
non-receptor protein-tyrosine kinases, the SH2 domain is
typically involved in negative regulation of kinase
activity by binding to a phosphorylated tyrosine residue
near to the C terminus. The C-terminal sequence of PTK6
(PTSpYENPT where pY is phosphotyrosine) is thought to be
a self-ligand for the SH2 domain. The structure of the
SH2 domain resembles other SH2 domains except for a
centrally located four-stranded antiparallel beta-sheet
(strands betaA, betaB, betaC, and betaD). There are also
differences in the loop length which might be
responsible for PTK6 ligand specificity. There are two
possible means of regulation of PTK6: autoinhibitory
with the phosphorylation of Tyr playing a role in its
negative regulation and autophosphorylation at this
site, though it has been shown that PTK6 might
phosphorylate signal transduction-associated proteins
Sam68 and signal transducing adaptor family member 2
(STAP/BKS) in vivo. In general SH2 domains are involved
in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 100
Score = 36.6 bits (84), Expect = 0.004
Identities = 28/93 (30%), Positives = 43/93 (46%), Gaps = 7/93 (7%)
Query: 319 LSEKHCCHSIPEVKDKEGCFVVRNSSTKGL-YTLSLYTKVPHPHVKHYHIKQNSRGEFFL 377
+S + + G F++R S Y LS+ V+HY I + + G L
Sbjct: 9 ISRSEAVRRLQAEGNATGAFLIRVSEKPSADYVLSVRDT---QAVRHYKIWRRAGGRLHL 65
Query: 378 SEKHCCHSIPEVVNYHRHNSGGLASRLKTS-PC 409
+E S+PE+VNYHR S L+ L+ + PC
Sbjct: 66 NEAVSFLSLPELVNYHRAQS--LSHGLRLAAPC 96
Score = 35.9 bits (82), Expect = 0.008
Identities = 24/79 (30%), Positives = 37/79 (46%), Gaps = 5/79 (6%)
Query: 257 WYVGDMSRQRAESILKQEDK-EGCFVVRNSSTKGL-YTLSLYTKVPHPHVKHYHIKQNSR 314
W+ G +SR A L+ E G F++R S Y LS+ V+HY I + +
Sbjct: 4 WFFGCISRSEAVRRLQAEGNATGAFLIRVSEKPSADYVLSVRDT---QAVRHYKIWRRAG 60
Query: 315 GEFFLSEKHCCHSIPEVKD 333
G L+E S+PE+ +
Sbjct: 61 GRLHLNEAVSFLSLPELVN 79
>gnl|CDD|173752 cd07861, STKc_CDK1_euk, Catalytic domain of the Serine/Threonine
Kinase, Cyclin-Dependent protein Kinase 1 from higher
eukaryotes-like. Serine/Threonine Kinases (STKs),
Cyclin-Dependent protein Kinase 1 (CDK1) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK1 subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. CDKs belong to a
large family of STKs that are regulated by their cognate
cyclins. Together, they are involved in the control of
cell-cycle progression, transcription, and neuronal
function. This subfamily is composed of CDK1 from higher
eukaryotes. CDK1 is also called Cell division control
protein 2 (Cdc2) or p34 protein kinase, and is regulated
by cyclins A, B, and E. The CDK1/cyclin A complex
controls G2 phase entry and progression. CDK1/cyclin A2
has also been implicated as an important regulator of S
phase events. The CDK1/cyclin B complex is critical for
G2 to M phase transition. It induces mitosis by
activating nuclear enzymes that regulate chromatin
condensation, nuclear membrane degradation,
mitosis-specific microtubule and cytoskeletal
reorganization. CDK1 also associates with cyclin E and
plays a role in the entry into S phase. CDK1
transcription is stable throughout the cell cycle but is
modulated in some pathological conditions. It may play a
role in regulating apoptosis under these conditions. In
breast cancer cells, HER2 can mediate apoptosis by
inactivating CDK1. Activation of CDK1 may contribute to
HIV-1 induced apoptosis and neuronal apoptosis in
neurodegenerative diseases.
Length = 285
Score = 38.9 bits (91), Expect = 0.004
Identities = 27/82 (32%), Positives = 44/82 (53%), Gaps = 8/82 (9%)
Query: 434 LEELGSGQFGVVRRGKWR--GSIDVAMMKEGTMSEDD-----FIEEAKVMTRLQHQNLVQ 486
+E++G G +GVV +G+ + G I VAM K SE++ I E ++ LQH N+V
Sbjct: 5 IEKIGEGTYGVVYKGRNKKTGQI-VAMKKIRLESEEEGVPSTAIREISLLKELQHPNIVC 63
Query: 487 LYGVCSKHRPIYIVTDTSSFRL 508
L V + +Y++ + S L
Sbjct: 64 LQDVLMQESRLYLIFEFLSMDL 85
>gnl|CDD|173734 cd07830, STKc_MAK_like, Catalytic domain of Male germ
cell-Associated Kinase-like Serine/Threonine Kinases.
Serine/Threonine Kinases (STKs), Male germ
cell-Associated Kinase (MAK)-like subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MAK-like subfamily
is part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. This subfamily is composed of human MAK and
MAK-related kinase (MRK), Saccharomyces cerevisiae
Ime2p, Schizosaccharomyces pombe Mei4-dependent protein
3 (Mde3) and Pit1, Caenorhabditis elegans dyf-5,
Arabidopsis thaliana MHK, and similar proteins. These
proteins play important roles during meiosis. MAK is
highly expressed in testicular cells specifically in the
meiotic phase, but is not essential for spermatogenesis
and fertility. It functions as a coactivator of the
androgen receptor in prostate cells. MRK, also called
Intestinal Cell Kinase (ICK), is expressed ubiquitously,
with highest expression in the ovary and uterus. A
missense mutation in MRK causes
endocrine-cerebro-osteodysplasia (ECO), suggesting that
this protein plays an important role in the development
of many organs. MAK and MRK may be involved in
regulating cell cycle and cell fate. Ime2p is a
meiosis-specific kinase that is important during meiotic
initiation and during the later stages of meiosis. Mde3
functions downstream of the transcription factor Mei-4
which is essential for meiotic prophase I.
Length = 283
Score = 39.1 bits (92), Expect = 0.004
Identities = 22/75 (29%), Positives = 41/75 (54%), Gaps = 8/75 (10%)
Query: 433 LLEELGSGQFGVVRRGKWR--GSIDVAM--MKEGTMSEDDFIE--EAKVMTRLQ-HQNLV 485
++++LG G FG V + + G + VA+ MK+ S ++ + E K + +L H N+V
Sbjct: 3 VIKQLGDGTFGSVYLARNKETGEL-VAIKKMKKKFYSWEECMNLREVKSLRKLNEHPNIV 61
Query: 486 QLYGVCSKHRPIYIV 500
+L V ++ +Y V
Sbjct: 62 KLKEVFRENDELYFV 76
Score = 28.7 bits (65), Expect = 7.6
Identities = 7/24 (29%), Positives = 16/24 (66%)
Query: 26 DMCIQVCKGMAYLERHNYIHRETK 49
+ Q+ +G+A++ +H + HR+ K
Sbjct: 103 SIIYQILQGLAHIHKHGFFHRDLK 126
>gnl|CDD|212909 cd11976, SH3_VAV1_2, C-terminal (or second) Src homology 3 domain
of VAV1 protein. VAV1 is expressed predominantly in the
hematopoietic system and it plays an important role in
the development and activation of B and T cells. It is
activated by tyrosine phosphorylation to function as a
guanine nucleotide exchange factor (GEF) for Rho GTPases
following cell surface receptor activation, triggering
various effects such as cytoskeletal reorganization,
transcription regulation, cell cycle progression, and
calcium mobilization. It also serves as a scaffold
protein and has been shown to interact with Ku70, Socs1,
Janus kinase 2, SIAH2, S100B, Abl gene, ZAP-70, SLP76,
and Syk, among others. VAV proteins contain several
domains that enable their function: N-terminal calponin
homology (CH), acidic, RhoGEF (also called
Dbl-homologous or DH), Pleckstrin Homology (PH), C1
(zinc finger), SH2, and two SH3 domains. The C-terminal
SH3 domain of Vav1 interacts with a wide variety of
proteins including cytoskeletal regulators (zyxin),
RNA-binding proteins (Sam68), transcriptional
regulators, viral proteins, and dynamin 2. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 35.3 bits (81), Expect = 0.004
Identities = 19/52 (36%), Positives = 33/52 (63%), Gaps = 2/52 (3%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDT-QEHWWKVKDKNGSVGYIPSNYVKE 180
A Y F A + +LSL++G ++++ Q+ WW+ + G VG+ P+NYV+E
Sbjct: 4 ARYDFCARDRSELSLKEGDIIKILNKKGQQGWWR-GEIYGRVGWFPANYVEE 54
>gnl|CDD|212994 cd12061, SH3_betaPIX, Src Homology 3 domain of beta-Pak Interactive
eXchange factor. Beta-PIX, also called Rho guanine
nucleotide exchange factor 7 (ARHGEF7) or Cool (Cloned
out of Library)-1, activates small GTPases by exchanging
bound GDP for free GTP. It acts as a GEF for both Cdc42
and Rac 1, and plays important roles in regulating
neuroendocrine exocytosis, focal adhesion maturation,
cell migration, synaptic vesicle localization, and
insulin secretion. PIX proteins contain an N-terminal
SH3 domain followed by RhoGEF (also called
Dbl-homologous or DH) and Pleckstrin Homology (PH)
domains, and a C-terminal leucine-zipper domain for
dimerization. The SH3 domain of PIX binds to an atypical
PxxxPR motif in p21-activated kinases (PAKs) with high
affinity. The binding of PAKs to PIX facilitate the
localization of PAKs to focal complexes and also
localizes PAKs to PIX targets Cdc43 and Rac, leading to
the activation of PAKs. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 35.4 bits (81), Expect = 0.004
Identities = 20/54 (37%), Positives = 27/54 (50%), Gaps = 1/54 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
VV A + F+ +LS KG V + WW+ NG G+ PSNYV+E
Sbjct: 1 VVRAKFNFQQTNEDELSFSKGDVIHVTRVEEGGWWE-GTHNGRTGWFPSNYVRE 53
>gnl|CDD|198190 cd09937, SH2_csk_like, Src homology 2 (SH2) domain found in
Carboxyl-Terminal Src Kinase (Csk). Both the C-terminal
Src kinase (CSK) and CSK-homologous kinase (CHK) are
members of the CSK-family of protein tyrosine kinases.
These proteins suppress activity of Src-family kinases
(SFK) by selectively phosphorylating the conserved
C-terminal tail regulatory tyrosine by a similar
mechanism. CHK is also capable of inhibiting SFKs by a
non-catalytic mechanism that involves binding of CHK to
SFKs to form stable protein complexes. The
unphosphorylated form of SFKs is inhibited by CSK and
CHK by a two-step mechanism. The first step involves the
formation of a complex of SFKs with CSK/CHK with the
SFKs in the complex are inactive. The second step,
involves the phosphorylation of the C-terminal tail
tyrosine of SFKs, which then dissociates and adopt an
inactive conformation. The structural basis of how the
phosphorylated SFKs dissociate from CSK/CHK to adopt the
inactive conformation is not known. The inactive
conformation of SFKs is stabilized by two intramolecular
inhibitory interactions: (a) the pYT:SH2 interaction in
which the phosphorylated C-terminal tail tyrosine (YT)
binds to the SH2 domain, and (b) the linker:SH3
interaction of which the SH2-kinase domain linker binds
to the SH3 domain. SFKs are activated by multiple
mechanisms including binding of the ligands to the SH2
and SH3 domains to displace the two inhibitory
intramolecular interactions, autophosphorylation, and
dephosphorylation of YT. By selective phosphorylation
and the non-catalytic inhibitory mechanism CSK and CHK
are able to inhibit the active forms of SFKs. CSK and
CHK are regulated by phosphorylation and inter-domain
interactions. They both contain SH3, SH2, and kinase
domains separated by the SH3-SH2 connector and SH2
kinase linker, intervening segments separating the three
domains. They lack a conserved tyrosine phosphorylation
site in the kinase domain and the C-terminal tail
regulatory tyrosine phosphorylation site. The CSK SH2
domain is crucial for stabilizing the kinase domain in
the active conformation. A disulfide bond here regulates
CSK kinase activity. The subcellular localization and
activity of CSK are regulated by its SH2 domain. In
general SH2 domains are involved in signal transduction.
They typically bind pTyr-containing ligands via two
surface pockets, a pTyr and hydrophobic binding pocket,
allowing proteins with SH2 domains to localize to
tyrosine phosphorylated sites.
Length = 98
Score = 36.5 bits (85), Expect = 0.004
Identities = 20/58 (34%), Positives = 32/58 (55%), Gaps = 5/58 (8%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHIKQNS 313
W+ G +SR+ AE +L Q ++G F+VR S+ G YTL + V+HY + +
Sbjct: 5 WFHGKISREEAERLL-QPPEDGLFLVRESTNYPGDYTLCV---SFEGKVEHYRVIYRN 58
Score = 29.2 bits (66), Expect = 1.4
Identities = 19/74 (25%), Positives = 39/74 (52%), Gaps = 5/74 (6%)
Query: 334 KEGCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVNY 392
++G F+VR S+ G YTL + V+HY + + G+ + E+ ++ ++V +
Sbjct: 23 EDGLFLVRESTNYPGDYTLCV---SFEGKVEHYRVIYRN-GKLTIDEEEYFENLIQLVEH 78
Query: 393 HRHNSGGLASRLKT 406
+ ++ GL +RL
Sbjct: 79 YTKDADGLCTRLVK 92
>gnl|CDD|212910 cd11977, SH3_VAV2_2, C-terminal (or second) Src homology 3 domain
of VAV2 protein. VAV2 is widely expressed and functions
as a guanine nucleotide exchange factor (GEF) for RhoA,
RhoB and RhoG and also activates Rac1 and Cdc42. It is
implicated in many cellular and physiological functions
including blood pressure control, eye development,
neurite outgrowth and branching, EGFR endocytosis and
degradation, and cell cluster morphology, among others.
It has been reported to associate with Nek3. VAV
proteins contain several domains that enable their
function: N-terminal calponin homology (CH), acidic,
RhoGEF (also called Dbl-homologous or DH), Pleckstrin
Homology (PH), C1 (zinc finger), SH2, and two SH3
domains. The SH3 domain of VAV is involved in the
localization of proteins to specific sites within the
cell, by interacting with proline-rich sequences within
target proteins. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 58
Score = 35.4 bits (81), Expect = 0.004
Identities = 20/55 (36%), Positives = 30/55 (54%), Gaps = 3/55 (5%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDT--QEHWWKVKDKNGSVGYIPSNYVKEK 181
VA Y F A + +LSL +G + + WWK + NG +G+ PS YV+E+
Sbjct: 4 VARYNFAARDMRELSLREGDVVRIYSRIGGDQGWWK-GETNGRIGWFPSTYVEEE 57
>gnl|CDD|212931 cd11998, SH3_PACSIN1-2, Src homology 3 domain of Protein kinase C
and Casein kinase Substrate in Neurons 1 (PACSIN1) and
PACSIN 2. PACSIN 1 or Syndapin I (Synaptic
dynamin-associated protein I) is expressed specifically
in the brain and is localized in neurites and synaptic
boutons. It binds the brain-specific proteins dynamin I,
synaptojanin, synapsin I, and neural Wiskott-Aldrich
syndrome protein (nWASP), and functions as a link
between the cytoskeletal machinery and synaptic vesicle
endocytosis. PACSIN 1 interacts with huntingtin and may
be implicated in the neuropathology of Huntington's
disease. PACSIN 2 or Syndapin II is expressed
ubiquitously and is involved in the regulation of
tubulin polymerization. It associates with Golgi
membranes and forms a complex with dynamin II which is
crucial in promoting vesicle formation from the
trans-Golgi network. PACSINs act as regulators of
cytoskeletal and membrane dynamics. Vetebrates harbor
three isoforms with distinct expression patterns and
specific functions. PACSINs contain an N-terminal F-BAR
domain and a C-terminal SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 56
Score = 35.3 bits (81), Expect = 0.005
Identities = 20/53 (37%), Positives = 29/53 (54%), Gaps = 1/53 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEH-WWKVKDKNGSVGYIPSNYVK 179
V ALY + E +LS + G E ++D E W K + +G VG P+NYV+
Sbjct: 3 VRALYDYDGQEQDELSFKAGDELTKLEDEDEQGWCKGRLDSGQVGLYPANYVE 55
>gnl|CDD|212874 cd11941, SH3_ARHGEF37_C2, Second C-terminal Src homology 3 domain
of Rho guanine nucleotide exchange factor 37. ARHGEF37
contains a RhoGEF [or Dbl homology (DH)] domain followed
by a Bin/Amphiphysin/Rvs (BAR) domain, and two
C-terminal SH3 domains. Its specific function is
unknown. Its domain architecture is similar to the
C-terminal half of DNMBP or Tuba, a cdc42-specific GEF
that provides a functional link between dynamin, Rho
GTPase signaling, and actin dynamics, and plays an
important role in regulating cell junction
configuration. GEFs activate small GTPases by exchanging
bound GDP for free GTP. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 57
Score = 35.3 bits (81), Expect = 0.005
Identities = 20/54 (37%), Positives = 29/54 (53%), Gaps = 3/54 (5%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVM---DDTQEHWWKVKDKNGSVGYIPSNYV 178
VVA YPF A ++SL+ G V+ D W + + NG GY+PS+Y+
Sbjct: 2 VVAAYPFTARSKHEVSLQAGQPVTVLEPHDKKGSPEWSLVEVNGQRGYVPSSYL 55
>gnl|CDD|212979 cd12046, SH3_p67phox_C, C-terminal (or second) Src Homology 3
domain of the p67phox subunit of NADPH oxidase.
p67phox, also called Neutrophil cytosol factor 2
(NCF-2), is a cytosolic subunit of the phagocytic NADPH
oxidase complex (also called Nox2 or gp91phox) which
plays a crucial role in the cellular response to
bacterial infection. NADPH oxidase catalyzes the
transfer of electrons from NADPH to oxygen during
phagocytosis forming superoxide and reactive oxygen
species. p67phox plays a regulatory role and contains
N-terminal TPR, first SH3 (or N-terminal or central
SH3), PB1, and C-terminal SH3 domains. It binds, via its
C-terminal SH3 domain, to a proline-rich region of
p47phox and upon activation, this complex assembles with
flavocytochrome b558, the Nox2-p22phox heterodimer.
Concurrently, RacGTP translocates to the membrane and
interacts with the TPR domain of p67phox, which leads to
the activation of NADPH oxidase. The PB1 domain of
p67phox binds to its partner PB1 domain in p40phox, and
this facilitates the assembly of p47phox-p67phox at the
membrane. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 34.8 bits (80), Expect = 0.005
Identities = 17/53 (32%), Positives = 28/53 (52%), Gaps = 1/53 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
VVAL+ ++A + DL +KG V+ E W + G +G PS +V++
Sbjct: 2 VVALFSYEASQPEDLEFQKGDVILVLSKVNEDWLE-GQCKGKIGIFPSAFVED 53
Score = 27.5 bits (61), Expect = 2.8
Identities = 16/44 (36%), Positives = 23/44 (52%), Gaps = 2/44 (4%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW--KVKDKNGI 116
VVAL+ ++A + DL +KG V+ E W + K K GI
Sbjct: 2 VVALFSYEASQPEDLEFQKGDVILVLSKVNEDWLEGQCKGKIGI 45
>gnl|CDD|143338 cd07833, STKc_CDKL, Catalytic domain of Cyclin-Dependent protein
Kinase Like Serine/Threonine Kinases. Serine/Threonine
Kinases (STKs), Cyclin-dependent protein kinase like
(CDKL) subfamily, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
CDKL subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. CDKs belong to a large family of STKs that are
regulated by their cognate cyclins. Together, they are
involved in the control of cell-cycle progression,
transcription, and neuronal function. This subfamily is
composed of CDKL1-5 and similar proteins. Some CDKLs,
like CDKL1 and CDKL3, may be implicated in
transformation and others, like CDKL3 and CDKL5, are
associated with mental retardation when impaired. CDKL2
plays a role in learning and memory.
Length = 288
Score = 38.5 bits (90), Expect = 0.006
Identities = 21/73 (28%), Positives = 39/73 (53%), Gaps = 6/73 (8%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDDFI------EEAKVMTRLQHQNLVQL 487
L +G G +GVV + + + + ++ +K+ SEDD E KV+ +L+H+N+V L
Sbjct: 6 LGVVGEGAYGVVLKCRNKATGEIVAIKKFKESEDDEDVKKTALREVKVLRQLRHENIVNL 65
Query: 488 YGVCSKHRPIYIV 500
+ +Y+V
Sbjct: 66 KEAFRRKGRLYLV 78
Score = 28.8 bits (65), Expect = 6.7
Identities = 9/20 (45%), Positives = 13/20 (65%)
Query: 30 QVCKGMAYLERHNYIHRETK 49
Q+ + +AY HN IHR+ K
Sbjct: 108 QLLQAIAYCHSHNIIHRDIK 127
>gnl|CDD|198216 cd10353, SH2_Nterm_RasGAP, N-terminal Src homology 2 (SH2) domain
found in Ras GTPase-activating protein 1 (GAP). RasGAP
is part of the GAP1 family of GTPase-activating
proteins. The protein is located in the cytoplasm and
stimulates the GTPase activity of normal RAS p21, but
not its oncogenic counterpart. Acting as a suppressor of
RAS function, the protein enhances the weak intrinsic
GTPase activity of RAS proteins resulting in RAS
inactivation, thereby allowing control of cellular
proliferation and differentiation. Mutations leading to
changes in the binding sites of either protein are
associated with basal cell carcinomas. Alternative
splicing results in two isoforms. The shorter isoform
which lacks the N-terminal hydrophobic region, has the
same activity, and is expressed in placental tissues. In
general the longer isoform contains 2 SH2 domains, a SH3
domain, a pleckstrin homology (PH) domain, and a
calcium-dependent phospholipid-binding C2 domain. The
C-terminus contains the catalytic domain of RasGap which
catalyzes the activation of Ras by hydrolyzing GTP-bound
active Ras into an inactive GDP-bound form of Ras. This
model contains the N-terminal SH2 domain. In general SH2
domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 103
Score = 36.0 bits (83), Expect = 0.006
Identities = 18/54 (33%), Positives = 27/54 (50%), Gaps = 4/54 (7%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSSTK-GLYTLSLYTKVPHPHVKHYHI 309
WY G + R AE L+Q K G +++R S + G + LS + V H+ I
Sbjct: 21 WYHGRLDRTIAEERLRQAGKLGSYLIRESDRRPGSFVLSFLS---RTGVNHFRI 71
>gnl|CDD|173727 cd06613, STKc_MAP4K3_like, Catalytic domain of Mitogen-activated
protein kinase kinase kinase kinase-like Protein
Serine/Threonine Kinases. Serine/threonine kinases
(STKs), mitogen-activated protein kinase (MAPK) kinase
kinase kinase 3 (MAPKKKK3 or MAP4K3)-like subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MAP4K3-like
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. This subfamily includes MAP4K3, MAP4K1,
MAP4K2, MAP4K5, and related proteins. Vertebrate members
contain an N-terminal catalytic domain and a C-terminal
citron homology (CNH) regulatory domain, similar to
MAP4K4/6. MAP4Ks are involved in some MAPK signaling
pathways that are important in mediating cellular
responses to extracellular signals by activating a MAPK
kinase kinase (MAPKKK or MAP3K or MKKK). Each MAPK
cascade is activated either by a small GTP-binding
protein or by an adaptor protein, which transmits the
signal either directly to a MAP3K to start the triple
kinase core cascade or indirectly through a mediator
kinase, a MAP4K. MAP4K1, also called haematopoietic
progenitor kinase 1 (HPK1), is a hematopoietic-specific
STK involved in many cellular signaling cascades
including MAPK, antigen receptor, apoptosis, growth
factor, and cytokine signaling. It participates in the
regulation of T cell receptor signaling and T
cell-mediated immune responses. MAP4K2 was referred to
as germinal center (GC) kinase because of its preferred
location in GC B cells. MAP4K3 plays a role in the
nutrient-responsive pathway of mTOR (mammalian target of
rapamycin) signaling. It is required in the activation
of S6 kinase by amino acids and for the phosphorylation
of the mTOR-regulated inhibitor of eukaryotic initiation
factor 4E. MAP4K5, also called germinal center
kinase-related enzyme (GCKR), has been shown to activate
the MAPK c-Jun N-terminal kinase (JNK).
Length = 262
Score = 38.0 bits (89), Expect = 0.007
Identities = 14/61 (22%), Positives = 30/61 (49%), Gaps = 4/61 (6%)
Query: 433 LLEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDDFIE----EAKVMTRLQHQNLVQLY 488
L++ +GSG +G V + + + ++ +K + D E E ++ +H N+V +
Sbjct: 7 LIQRIGSGTYGDVYKARDIATGELVAIKVIKLEPGDDFEIIQQEISMLKECRHPNIVAYF 66
Query: 489 G 489
G
Sbjct: 67 G 67
>gnl|CDD|212720 cd11786, SH3_SH3RF_1, First Src Homology 3 domain of SH3 domain
containing ring finger proteins. This model represents
the first SH3 domain of SH3RF1 (or POSH), SH3RF2 (or
POSHER), SH3RF3 (POSH2), and similar domains. Members of
this family are scaffold proteins that function as E3
ubiquitin-protein ligases. They all contain an
N-terminal RING finger domain and multiple SH3 domains;
SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has
three. SH3RF1 plays a role in calcium homeostasis
through the control of the ubiquitin domain protein
Herp. It may also have a role in regulating death
receptor mediated and JNK mediated apoptosis. SH3RF3
interacts with p21-activated kinase 2 (PAK2) and
GTP-loaded Rac1. It may play a role in regulating JNK
mediated apoptosis in certain conditions. SH3RF2 acts as
an anti-apoptotic regulator of the JNK pathway by
binding to and promoting the degradation of SH3RF1. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 34.6 bits (80), Expect = 0.007
Identities = 18/50 (36%), Positives = 29/50 (58%), Gaps = 1/50 (2%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
ALY ++ E GDLS +KG + E+W+ + NG G+ P++YV+
Sbjct: 4 ALYNYEGKEPGDLSFKKGDIILLRKRIDENWYH-GECNGKQGFFPASYVQ 52
>gnl|CDD|213004 cd12071, SH3_FBP17, Src Homology 3 domain of Formin Binding Protein
17. Formin Binding Protein 17 (FBP17), also called
FormiN Binding Protein 1 (FNBP1), is involved in
dynamin-mediated endocytosis. It is recruited to
clathrin-coated pits late in the endocytosis process and
may play a role in the invagination and scission steps.
FBP17 binds in vivo to tankyrase, a protein involved in
telomere maintenance and mitogen activated protein
kinase (MAPK) signaling. It contains an N-terminal F-BAR
(FES-CIP4 Homology and Bin/Amphiphysin/Rvs) domain, a
Cdc42-binding HR1 domain, and a C-terminal SH3 domain.
The SH3 domain of the related protein, CIP4, associates
with Gapex-5, a Rab31 GEF. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 57
Score = 34.6 bits (79), Expect = 0.007
Identities = 15/51 (29%), Positives = 30/51 (58%), Gaps = 1/51 (1%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMD-DTQEHWWKVKDKNGSVGYIPSNYVK 179
ALYPF+ G +S+ +G V++ D + W +++ GY+P++Y++
Sbjct: 5 ALYPFEGQNEGTISVAEGEMLYVIEEDKGDGWTRIRRNEDEEGYVPTSYIE 55
>gnl|CDD|198215 cd10352, SH2_a2chimerin_b2chimerin, Src homology 2 (SH2) domain
found in alpha2-chimerin and beta2-chimerin proteins.
Chimerins are a family of phorbol ester- and
diacylglycerol-responsive GTPase-activating proteins.
Alpha1-chimerin (formerly known as n-chimerin) and
alpha2-chimerin are alternatively spliced products of a
single gene, as are beta1- and beta2-chimerin. alpha1-
and beta1-chimerin have a relatively short N-terminal
region that does not encode any recognizable domains,
whereas alpha2- and beta2-chimerin both include a
functional SH2 domain that can bind to phosphotyrosine
motifs within receptors. All of the isoforms contain a
GAP domain with specificity in vitro for Rac1 and a
diacylglycerol (DAG)-binding C1 domain which allows them
to translocate to membranes in response to DAG signaling
and anchors them in close proximity to activated Rac.
Other C1 domain-containing diacylglycerol receptors
including: PKC, Munc-13 proteins, phorbol ester binding
scaffolding proteins involved in Ca2+-stimulated
exocytosis, and RasGRPs, diacylglycerol-activated
guanine-nucleotide exchange factors (GEFs) for Ras and
Rap1. In general SH2 domains are involved in signal
transduction. They typically bind pTyr-containing
ligands via two surface pockets, a pTyr and hydrophobic
binding pocket, allowing proteins with SH2 domains to
localize to tyrosine phosphorylated sites.
Length = 91
Score = 35.4 bits (82), Expect = 0.007
Identities = 20/53 (37%), Positives = 30/53 (56%), Gaps = 5/53 (9%)
Query: 258 YVGDMSRQRAESILKQEDKEGCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHI 309
Y G +SR+ AE +L +G +++R SS G YTLSL + VK+Y +
Sbjct: 9 YHGLISREEAEQLLS-GASDGSYLIRESSRDDGYYTLSLRF---NGKVKNYKL 57
>gnl|CDD|212818 cd11885, SH3_SH3TC, Src Homology 3 domain of SH3 domain and
tetratricopeptide repeat-containing (SH3TC) proteins and
similar domains. This subfamily is composed of
vertebrate SH3TC proteins and hypothetical fungal
proteins containing BAR and SH3 domains. Mammals contain
two SH3TC proteins, SH3TC1 and SH3TC2. The function of
SH3TC1 is unknown. SH3TC2 is localized in Schwann cells
in the peripheral nervous system, where it interacts
with Rab11 and plays a role in peripheral nerve
myelination. Mutations in SH3TC2 are associated with
Charcot-Marie-Tooth disease type 4C, a severe hereditary
peripheral neuropathy with symptoms that include
progressive scoliosis, delayed age of walking, muscular
atrophy, distal weakness, and reduced nerve conduction
velocity. SH3 domains bind to proline-rich ligands with
moderate affinity and selectivity, preferentially to
PxxP motifs; they play a role in the regulation of
enzymes by intramolecular interactions, changing the
subcellular localization of signal pathway components
and mediate multiprotein complex assemblies.
Length = 55
Score = 34.6 bits (80), Expect = 0.007
Identities = 16/54 (29%), Positives = 29/54 (53%), Gaps = 3/54 (5%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQE--HWWKVKDK-NGSVGYIPSNYV 178
A F+ +E G+LS +G E++ D W+ + K +G VG++P+N+
Sbjct: 2 CTAKMDFEGVEPGELSFRQGDSIEIIGDLIPGLQWFVGRSKSSGRVGFVPTNHF 55
>gnl|CDD|213003 cd12070, SH3_ARHGAP12, Src Homology 3 domain of Rho
GTPase-activating protein 12. Rho GTPase-activating
proteins (RhoGAPs or ARHGAPs) bind to Rho proteins and
enhance the hydrolysis rates of bound GTP. ARHGAP12 has
been shown to display GAP activity towards Rac1. It
plays a role in regulating hepatocyte growth factor
(HGF)-driven cell growth and invasiveness. It contains
SH3, WW, Pleckstin homology (PH), and RhoGAP domains.
SH3 domains bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs;
they play a role in the regulation of enzymes by
intramolecular interactions, changing the subcellular
localization of signal pathway components and mediate
multiprotein complex assemblies.
Length = 60
Score = 34.6 bits (79), Expect = 0.008
Identities = 15/40 (37%), Positives = 26/40 (65%), Gaps = 1/40 (2%)
Query: 142 LSLEKGAEYEVMDDTQEHWWKVK-DKNGSVGYIPSNYVKE 180
+ +++G Y ++ T + WW+VK D+N Y+P+ YVKE
Sbjct: 18 IVIKQGERYILVKKTNDDWWQVKKDENSKPFYVPAQYVKE 57
>gnl|CDD|198234 cd10371, SH2_Src_Blk, Src homology 2 (SH2) domain found in B
lymphoid kinase (Blk). Blk is a member of the Src
non-receptor type tyrosine kinase family of proteins.
Blk is expressed in the B-cells. Unlike most other Src
members Blk lacks cysteine residues in the SH4 domain
that undergo palmitylation. Blk is required for the
development of IL-17-producing gamma-delta T cells.
Furthermore, Blk is expressed in lymphoid precursors
and, in this capacity, plays a role in regulating thymus
cellularity during ontogeny. Blk has a unique N-terminal
domain, an SH3 domain, an SH2 domain, a kinase domain
and a regulatory tail, as do the other members of the
family. In general SH2 domains are involved in signal
transduction. They typically bind pTyr-containing
ligands via two surface pockets, a pTyr and hydrophobic
binding pocket, allowing proteins with SH2 domains to
localize to tyrosine phosphorylated sites.
Length = 100
Score = 35.8 bits (82), Expect = 0.008
Identities = 22/69 (31%), Positives = 38/69 (55%), Gaps = 3/69 (4%)
Query: 257 WYVGDMSRQRAE-SILKQEDKEGCFVVRNSST-KGLYTLSLYTKVPHPHV-KHYHIKQNS 313
W+ +SR+ AE +L +K G F++R S + KG ++LS+ V KHY I+
Sbjct: 5 WFFRTISRKDAERQLLAPMNKAGSFLIRESESNKGAFSLSVKDVTTQGEVVKHYKIRSLD 64
Query: 314 RGEFFLSEK 322
G +++S +
Sbjct: 65 NGGYYISPR 73
Score = 35.8 bits (82), Expect = 0.009
Identities = 20/74 (27%), Positives = 38/74 (51%), Gaps = 2/74 (2%)
Query: 333 DKEGCFVVRNSST-KGLYTLSLYTKVPHPHV-KHYHIKQNSRGEFFLSEKHCCHSIPEVV 390
+K G F++R S + KG ++LS+ V KHY I+ G +++S + ++ +V
Sbjct: 24 NKAGSFLIRESESNKGAFSLSVKDVTTQGEVVKHYKIRSLDNGGYYISPRITFPTLQALV 83
Query: 391 NYHRHNSGGLASRL 404
++ GL +L
Sbjct: 84 QHYSKKGDGLCQKL 97
>gnl|CDD|223589 COG0515, SPS1, Serine/threonine protein kinase [General function
prediction only / Signal transduction mechanisms /
Transcription / DNA replication, recombination, and
repair].
Length = 384
Score = 38.2 bits (87), Expect = 0.008
Identities = 19/78 (24%), Positives = 37/78 (47%), Gaps = 5/78 (6%)
Query: 430 ELMLLEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDD----FIEEAKVMTRLQHQ-NL 484
+L +LG G FG V + R + + ++ + S+ F+ E +++ L H N+
Sbjct: 1 SYRILRKLGEGSFGEVYLARDRKLVALKVLAKKLESKSKEVERFLREIQILASLNHPPNI 60
Query: 485 VQLYGVCSKHRPIYIVTD 502
V+LY +Y+V +
Sbjct: 61 VKLYDFFQDEGSLYLVME 78
Score = 31.6 bits (70), Expect = 0.95
Identities = 12/51 (23%), Positives = 21/51 (41%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRETKKS 51
+ GSL + L++ + L + Q+ + YL IHR+ K
Sbjct: 80 VDGGSLEDLLKKIGRKGPLSESEALFILAQILSALEYLHSKGIIHRDIKPE 130
Score = 28.9 bits (63), Expect = 7.5
Identities = 40/211 (18%), Positives = 74/211 (35%), Gaps = 8/211 (3%)
Query: 200 IHQVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPKAWYV 259
+ L+ SS SD+W+ G+ ++E+ T G P+ KN+ + + IILE P
Sbjct: 179 VLLGLSLAYASSSSDIWSLGITLYELLT-GLPPFEGEKNSSATSQTLK-IILELPTPSLA 236
Query: 260 GDMSRQRAESILKQEDKEGCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFL 319
+S E I K + + + LS + + H + H +K++ +
Sbjct: 237 SPLSPSNPELISKAASD---LLKKLLAKDPKNRLSSSSDLSHDLLAHLKLKESDLSDLLK 293
Query: 320 SEKHCCHSIPEVKDKEGCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHIK---QNSRGEFF 376
+ + E NS L L + + NS
Sbjct: 294 PDDSAPLRLSLPPSLEALISSLNSLAISGSDLKLDDSNFSKELAPNGVSSSPHNSSSLLL 353
Query: 377 LSEKHCCHSIPEVVNYHRHNSGGLASRLKTS 407
+ S+P++ +S +SR + S
Sbjct: 354 STASSKRSSLPKISARSSPSSLSSSSRQQAS 384
>gnl|CDD|212955 cd12022, SH3_p47phox_2, Second or C-terminal Src homology 3 domain
of the p47phox subunit of NADPH oxidase, also called
Neutrophil Cytosolic Factor 1. p47phox, or NCF1, is a
cytosolic subunit of the phagocytic NADPH oxidase
complex (also called Nox2 or gp91phox), which plays a
key role in the ability of phagocytes to defend against
bacterial infections. NADPH oxidase catalyzes the
transfer of electrons from NADPH to oxygen during
phagocytosis forming superoxide and reactive oxygen
species. p47phox is required for activation of NADH
oxidase and plays a role in translocation. It contains
an N-terminal Phox homology (PX) domain, tandem SH3
domains (N-SH3 and C-SH3), a polybasic/autoinhibitory
region, and a C-terminal proline-rich region (PRR). This
model characterizes the second SH3 domain (or C-SH3) of
p47phox. In its inactive state, the tandem SH3 domains
interact intramolecularly with the autoinhibitory
region; upon activation, the tandem SH3 domains are
exposed through a conformational change, resulting in
their binding to the PRR of p22phox and the activation
of NADPH oxidase. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 34.4 bits (79), Expect = 0.009
Identities = 16/47 (34%), Positives = 27/47 (57%), Gaps = 1/47 (2%)
Query: 134 FKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
+ A+E +L+L +G EV+ + WW V+ K GY PS Y+++
Sbjct: 8 YTAVEEDELTLLEGEAIEVIHKLLDGWWVVR-KGEVTGYFPSMYLQK 53
Score = 27.1 bits (60), Expect = 3.5
Identities = 10/31 (32%), Positives = 18/31 (58%)
Query: 81 FKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK 111
+ A+E +L+L +G EV+ + WW V+
Sbjct: 8 YTAVEEDELTLLEGEAIEVIHKLLDGWWVVR 38
>gnl|CDD|212751 cd11817, SH3_Eve1_4, Fourth Src homology 3 domain of ADAM-binding
protein Eve-1. Eve-1, also called SH3 domain-containing
protein 19 (SH3D19) or EEN-binding protein (EBP), exists
in multiple alternatively spliced isoforms. The longest
isoform contains five SH3 domain in the C-terminal
region and seven proline-rich motifs in the N-terminal
region. It is abundantly expressed in skeletal muscle
and heart, and may be involved in regulating the
activity of ADAMs (A disintegrin and metalloproteases).
Eve-1 interacts with EEN, an endophilin involved in
endocytosis and may be the target of the MLL-EEN fusion
protein that is implicated in leukemogenesis. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 50
Score = 34.0 bits (78), Expect = 0.010
Identities = 15/50 (30%), Positives = 21/50 (42%), Gaps = 1/50 (2%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNY 177
VALY F DLS ++G V + W + + NG G P +
Sbjct: 2 AVALYDFTGETEEDLSFQRGDRILVTEHLDAEWSRGR-LNGREGIFPRAF 50
Score = 31.3 bits (71), Expect = 0.088
Identities = 13/44 (29%), Positives = 19/44 (43%), Gaps = 2/44 (4%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK--VKDKNGI 116
VALY F DLS ++G V + W + + + GI
Sbjct: 2 AVALYDFTGETEEDLSFQRGDRILVTEHLDAEWSRGRLNGREGI 45
>gnl|CDD|132943 cd06612, STKc_MST1_2, Catalytic domain of the Protein
Serine/Threonine Kinases, Mammalian Ste20-like protein
kinase 1 and 2. Serine/threonine kinases (STKs),
mammalian Ste20-like protein kinase 1 (MST1) and MST2
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MST1/2 subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. This subfamily is composed of MST1, MST2, and
related proteins including Drosophila Hippo and
Dictyostelium discoideum Krs1 (kinase responsive to
stress 1). MST1/2 and Hippo are involved in a conserved
pathway that governs cell contact inhibition, organ size
control, and tumor development. MST1 activates the
mitogen-activated protein kinases (MAPKs) p38 and c-Jun
N-terminal kinase (JNK) through MKK7 (a MAPK kinase) and
MEKK1 (a MAPK kinase kinase) by acting as a MAPK kinase
kinase kinase (MAPKKKK). Activation of JNK by MST1 leads
to caspase activation and apoptosis. MST1 has also been
implicated in cell proliferation and differentiation.
Krs1 may regulate cell growth arrest and apoptosis in
response to cellular stress.
Length = 256
Score = 37.2 bits (87), Expect = 0.011
Identities = 19/72 (26%), Positives = 38/72 (52%), Gaps = 2/72 (2%)
Query: 433 LLEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSED--DFIEEAKVMTRLQHQNLVQLYGV 490
+LE+LG G +G V + + + V +K + ED + I+E ++ + +V+ YG
Sbjct: 7 ILEKLGEGSYGSVYKAIHKETGQVVAIKVVPVEEDLQEIIKEISILKQCDSPYIVKYYGS 66
Query: 491 CSKHRPIYIVTD 502
K+ ++IV +
Sbjct: 67 YFKNTDLWIVME 78
>gnl|CDD|212780 cd11846, SH3_Srms, Src homology 3 domain of Srms Protein Tyrosine
Kinase. Src-related kinase lacking C-terminal
regulatory tyrosine and N-terminal myristoylation sites
(Srms) is a cytoplasmic (or non-receptor) PTK with
limited homology to Src kinases. Src kinases in general
contain an N-terminal SH4 domain with a myristoylation
site, followed by SH3 and SH2 domains, a tyr kinase
domain, and a regulatory C-terminal region containing a
conserved tyr; they are activated by autophosphorylation
at the tyr kinase domain, but are negatively regulated
by phosphorylation at the C-terminal tyr by Csk
(C-terminal Src Kinase). However, Srms lacks the
N-terminal myristoylation sites. Src proteins are
involved in signaling pathways that regulate cytokine
and growth factor responses, cytoskeleton dynamics, cell
proliferation, survival, and differentiation. The SH3
domain of Src kinases contributes to substrate
recruitment by binding adaptor proteins/substrates, and
regulation of kinase activity through an intramolecular
interaction. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 34.0 bits (78), Expect = 0.011
Identities = 16/52 (30%), Positives = 29/52 (55%), Gaps = 1/52 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK-DKNGSVGYIPSNYV 178
ALY F A +LS+E+G + V+++ ++ + K N G +P++YV
Sbjct: 2 FTALYDFTARSTHELSVEQGDKLCVIEEEGDYIFARKLTGNPESGLVPASYV 53
>gnl|CDD|212803 cd11870, SH3_p67phox-like_C, C-terminal Src Homology 3 domain of
the p67phox subunit of NADPH oxidase and similar
proteins. This subfamily is composed of p67phox, NADPH
oxidase activator 1 (Noxa1), and similar proteins.
p67phox, also called Neutrophil cytosol factor 2
(NCF-2), and Noxa1 are homologs and are the cytosolic
subunits of the phagocytic (Nox2) and nonphagocytic
(Nox1) NADPH oxidase complexes, respectively. NADPH
oxidase catalyzes the transfer of electrons from NADPH
to oxygen during phagocytosis forming superoxide and
reactive oxygen species. p67phox and Noxa1 play
regulatory roles. p67phox contains N-terminal TPR, first
SH3 (or N-terminal or central SH3), PB1, and C-terminal
SH3 domains. Noxa1 has a similar domain architecture
except it is lacking the N-terminal SH3 domain. The TPR
domain of both binds activated GTP-bound Rac, while the
C-terminal SH3 domain of p67phox and Noxa1 binds the
polyproline motif found at the C-terminus of p47phox and
Noxo1, respectively. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 34.0 bits (78), Expect = 0.011
Identities = 16/52 (30%), Positives = 25/52 (48%), Gaps = 1/52 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
VVAL+ ++A DL +G +V+ + E W + G VG P +V
Sbjct: 2 VVALHRYEAQGPEDLGFREGDTIDVLSEVNEAWLEGHSD-GRVGIFPKCFVV 52
>gnl|CDD|212993 cd12060, SH3_alphaPIX, Src Homology 3 domain of alpha-Pak
Interactive eXchange factor. Alpha-PIX, also called Rho
guanine nucleotide exchange factor 6 (ARHGEF6) or Cool
(Cloned out of Library)-2, activates small GTPases by
exchanging bound GDP for free GTP. It acts as a GEF for
both Cdc42 and Rac 1, and is localized in dendritic
spines where it regulates spine morphogenesis. It
controls dendritic length and spine density in the
hippocampus. Mutations in the ARHGEF6 gene cause
X-linked intellectual disability in humans. PIX proteins
contain an N-terminal SH3 domain followed by RhoGEF
(also called Dbl-homologous or DH) and Pleckstrin
Homology (PH) domains, and a C-terminal leucine-zipper
domain for dimerization. The SH3 domain of PIX binds to
an atypical PxxxPR motif in p21-activated kinases (PAKs)
with high affinity. The binding of PAKs to PIX
facilitate the localization of PAKs to focal complexes
and also localizes PAKs to PIX targets Cdc43 and Rac,
leading to the activation of PAKs. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 58
Score = 34.2 bits (78), Expect = 0.011
Identities = 21/54 (38%), Positives = 28/54 (51%), Gaps = 1/54 (1%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
VV A + FK +LS+ KG V + WW+ NG G+ PSNYV+E
Sbjct: 3 VVKARFNFKQTNEDELSVCKGDIIYVTRVEEGGWWE-GTLNGKTGWFPSNYVRE 55
>gnl|CDD|132954 cd06623, PKc_MAPKK_plant_like, Catalytic domain of Plant
dual-specificity MAP kinase kinases and similar
proteins. Protein kinases (PKs), MAP kinase kinase
(MAPKK) subfamily, Plant MAPKKs and similar proteins,
catalytic (c) domain. PKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine or
tyrosine residues on protein substrates. The MAPKK
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein serine/threonine
kinases, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. The mitogen-activated protein
(MAP) kinase signaling pathways are important mediators
of cellular responses to extracellular signals. The
pathways involve a triple kinase core cascade comprising
of the MAP kinase (MAPK), which is phosphorylated and
activated by a MAPK kinase (MAPKK or MKK), which itself
is phosphorylated and activated by a MAPK kinase kinase
(MAPKKK or MKKK). Members of this group include MAPKKs
from plants, kinetoplastids, alveolates, and mycetozoa.
The MAPKK, LmxPK4, from Leishmania mexicana, is
important in differentiation and virulence.
Dictyostelium discoideum MEK1 is required for proper
chemotaxis. MEK1 null mutants display severe defects in
cell polarization and directional movement. Plants
contain multiple MAPKKs like other eukaryotes. The
Arabidopsis genome encodes for 10 MAPKKs while poplar
and rice contain 13 MAPKKs each. The functions of these
proteins have not been fully elucidated. There is
evidence to suggest that MAPK cascades are involved in
plant stress responses. In Arabidopsis, MKK3 plays a
role in pathogen signaling, MKK2 is involved in cold and
salt stress signaling, MKK4/MKK5 participates in innate
immunity, and MKK7 regulates basal and systemic acquired
resistance.
Length = 264
Score = 37.2 bits (87), Expect = 0.012
Identities = 18/77 (23%), Positives = 35/77 (45%), Gaps = 5/77 (6%)
Query: 429 AELMLLEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDDFIE-----EAKVMTRLQHQN 483
++L ++ LG G GVV + + + + + +K+ + D+ E K + +
Sbjct: 1 SDLERVKVLGQGSSGVVYKVRHKPTGKIYALKKIHVDGDEEFRKQLLRELKTLRSCESPY 60
Query: 484 LVQLYGVCSKHRPIYIV 500
+V+ YG K I IV
Sbjct: 61 VVKCYGAFYKEGEISIV 77
>gnl|CDD|173671 cd05580, STKc_PKA, Catalytic domain of the Protein Serine/Threonine
Kinase, cAMP-dependent protein kinase. Serine/Threonine
Kinases (STKs), cAMP-dependent protein kinase (PKA)
subfamily, catalytic (c) subunit. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The PKA
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase (PI3K). This subfamily is composed of the
cAMP-dependent proteins kinases, PKA and PRKX. The
inactive PKA holoenzyme is a heterotetramer composed of
two phosphorylated and active catalytic (C) subunits
with a dimer of regulatory (R) subunits. Activation is
achieved through the binding of the important second
messenger cAMP to the R subunits, which leads to the
dissociation of PKA into the R dimer and two active C
subunits. PKA is present ubiquitously in cells and
interacts with many different downstream targets. It
plays a role in the regulation of diverse processes such
as growth, development, memory, metabolism, gene
expression, immunity, and lipolysis.
Length = 290
Score = 37.5 bits (88), Expect = 0.012
Identities = 19/79 (24%), Positives = 37/79 (46%), Gaps = 11/79 (13%)
Query: 433 LLEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDDFIE---------EAKVMTRLQHQN 483
++ LG+G FG V + +GS +K +S+ ++ E +++ ++H
Sbjct: 5 FIKTLGTGSFGRVMLVRHKGSGKYYALK--ILSKAKIVKLKQVEHVLNEKRILQSIRHPF 62
Query: 484 LVQLYGVCSKHRPIYIVTD 502
LV LYG +Y+V +
Sbjct: 63 LVNLYGSFQDDSNLYLVME 81
>gnl|CDD|143345 cd07840, STKc_CDK9_like, Catalytic domain of Cyclin-Dependent
protein Kinase 9-like Serine/Threonine Kinases.
Serine/Threonine Kinases (STKs), Cyclin-Dependent
protein Kinase 9 (CDK9)-like subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK9-like subfamily
is part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. CDKs belong to a large family of STKs that are
regulated by their cognate cyclins. Together, they are
involved in the control of cell-cycle progression,
transcription, and neuronal function. This subfamily is
composed of CDK9 and CDK12 from higher eukaryotes, yeast
BUR1, C-type plant CDKs (CdkC), and similar proteins.
CDK9, BUR1, and CdkC are functionally equivalent. They
act as a kinase for the C-terminal domain of RNA
polymerase II and participate in regulating mutliple
steps of gene expression including transcription
elongation and RNA processing. CDK9 and CdkC associate
with T-type cyclins while BUR1 associates with the
cyclin BUR2. CDK12 is a unique CDK that contains an
arginine/serine-rich (RS) domain, which is predominantly
found in splicing factors. CDK12 interacts with cyclins
L1 and L2, and participates in regulating transcription
and alternative splicing.
Length = 287
Score = 37.5 bits (88), Expect = 0.012
Identities = 24/88 (27%), Positives = 46/88 (52%), Gaps = 9/88 (10%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDD------FIEEAKVMTRLQHQNLVQL 487
+ ++G G +G V + + + + ++ +K+ M + I E K++ +L+H N+V+L
Sbjct: 4 IAQIGEGTYGQVYKARNKKTGELVALKKIRMENEKEGFPITAIREIKLLQKLRHPNIVRL 63
Query: 488 YG-VCSKHRP-IYIVTDTSSFRL-GLLA 512
V SK + IY+V + L GLL
Sbjct: 64 KEIVTSKGKGSIYMVFEYMDHDLTGLLD 91
>gnl|CDD|132963 cd06632, STKc_MEKK1_plant, Catalytic domain of the Protein
Serine/Threonine Kinase, Plant MAP/ERK kinase kinase 1.
Serine/threonine kinases (STKs), plant MAP/ERK kinase
kinase 1 (MEKK1)-like subfamily, catalytic (c) domain.
STKs catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The plant MEKK1 subfamily is part of a
larger superfamily that includes the catalytic domains
of other protein STKs, protein tyrosine kinases, RIO
kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. This subfamily is
composed of plant mitogen-activated protein kinase
(MAPK) kinase kinases (MAPKKKs or MKKKs or MAP3Ks)
including Arabidopsis thaliana MEKK1 and MAPKKK3. MEKK1
is a MAPKKK that phosphorylates and activates MAPK
kinases (MAPKKs or MKKs or MAP2Ks), which in turn
phosphorylate and activate MAPKs during signaling
cascades that are important in mediating cellular
responses to extracellular signals. Arabidopsis thaliana
MEKK1 activates MPK4, a MAPK that regulates systemic
acquired resistance. MEKK1 also participates in the
regulation of temperature-sensitive and tissue-specific
cell death.
Length = 258
Score = 37.4 bits (87), Expect = 0.012
Identities = 23/74 (31%), Positives = 36/74 (48%), Gaps = 9/74 (12%)
Query: 435 EELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDDFI---------EEAKVMTRLQHQNLV 485
E LGSG FG V G D +KE ++++D +E ++++LQH N+V
Sbjct: 6 ELLGSGSFGSVYEGLNLDDGDFFAVKEVSLADDGQTGQEAVKQLEQEIALLSKLQHPNIV 65
Query: 486 QLYGVCSKHRPIYI 499
Q G + +YI
Sbjct: 66 QYLGTEREEDNLYI 79
>gnl|CDD|143341 cd07836, STKc_Pho85, Catalytic domain of the Serine/Threonine
Kinase, Fungal Cyclin-Dependent protein Kinase Pho85.
Serine/Threonine Kinases (STKs), Pho85 subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Pho85 subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. Pho85 is a
multifunctional Cyclin-Dependent protein Kinase (CDK) in
yeast. CDKs belong to a large family of STKs that are
regulated by their cognate cyclins. Together, they are
involved in the control of cell-cycle progression,
transcription, and neuronal function. Pho85 is regulated
by 10 different cyclins (Pcls) and plays a role in G1
progression, cell polarity, phosphate and glycogen
metabolism, gene expression, and in signaling changes in
the environment. It is not essential for yeast viability
and is the functional homolog of mammalian CDK5, which
plays a role in central nervous system development.
Length = 284
Score = 37.5 bits (87), Expect = 0.013
Identities = 22/64 (34%), Positives = 36/64 (56%), Gaps = 9/64 (14%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMK-------EGTMSEDDFIEEAKVMTRLQHQNLVQ 486
LE+LG G + V +G+ R + ++ +K EGT S I E +M L+H+N+V+
Sbjct: 5 LEKLGEGTYATVYKGRNRTTGEIVALKEIHLDAEEGTPSTA--IREISLMKELKHENIVR 62
Query: 487 LYGV 490
L+ V
Sbjct: 63 LHDV 66
>gnl|CDD|143346 cd07841, STKc_CDK7, Catalytic domain of the Serine/Threonine
Kinase, Cyclin-Dependent protein Kinase 7.
Serine/Threonine Kinases (STKs), Cyclin-Dependent
protein Kinase 7 (CDK7) subfamily, catalytic (c) domain.
STKs catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The CDK7 subfamily is part of a larger
superfamily that includes the catalytic domains of other
protein STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. CDKs belong to a large family
of STKs that are regulated by their cognate cyclins.
Together, they are involved in the control of cell-cycle
progression, transcription, and neuronal function. CDK7
plays essential roles in the cell cycle and in
transcription. It associates with cyclin H and MAT1 and
acts as a CDK-Activating Kinase (CAK) by phosphorylating
and activating cell cycle CDKs (CDK1/2/4/6). In the
brain, it activates CDK5. CDK7 is also a component of
the general transcription factor TFIIH, which
phosphorylates the C-terminal domain (CTD) of RNA
polymerase II when it is bound with unphosphorylated
DNA, as present in the pre-initiation complex. Following
phosphorylation, the CTD dissociates from the DNA which
allows transcription initiation.
Length = 298
Score = 37.2 bits (87), Expect = 0.013
Identities = 23/76 (30%), Positives = 36/76 (47%), Gaps = 11/76 (14%)
Query: 437 LGSGQFGVVRRG--KWRGSIDVAM--MKEGTMSED----DF--IEEAKVMTRLQHQNLVQ 486
LG G + VV + K G I VA+ +K G E +F + E K++ L+H N++
Sbjct: 8 LGEGTYAVVYKARDKETGRI-VAIKKIKLGERKEAKDGINFTALREIKLLQELKHPNIIG 66
Query: 487 LYGVCSKHRPIYIVTD 502
L V I +V +
Sbjct: 67 LLDVFGHKSNINLVFE 82
>gnl|CDD|212987 cd12054, SH3_CD2AP_2, Second Src Homology 3 domain (SH3B) of
CD2-associated protein. CD2AP, also called CMS (Cas
ligand with Multiple SH3 domains) or METS1
(Mesenchyme-to-Epithelium Transition protein with SH3
domains), is a cytosolic adaptor protein that plays a
role in regulating the cytoskeleton. It is critical in
cell-to-cell union necessary for kidney function. It
also stabilizes the contact between a T cell and
antigen-presenting cells. It is primarily expressed in
podocytes at the cytoplasmic face of the slit diaphragm
and serves as a linker anchoring podocin and nephrin to
the actin cytoskeleton. CD2AP contains three SH3
domains, a proline-rich region, and a C-terminal
coiled-coil domain. All of these domains enable CD2AP to
bind various protein partners and assemble complexes
that have been implicated in many different functions.
This alignment model represents the second SH3 domain
(SH3B) of CD2AP. SH3B binds to c-Cbl in a site (TPSSRPLR
is the core binding motif) distinct from the c-Cbl/SH3A
binding site. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 33.8 bits (77), Expect = 0.015
Identities = 15/40 (37%), Positives = 23/40 (57%), Gaps = 1/40 (2%)
Query: 141 DLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
+L L+ G ++ ++ +E WW NG G PSN+VKE
Sbjct: 16 ELELKVGDIIDINEEVEEGWWS-GTLNGKSGLFPSNFVKE 54
>gnl|CDD|198271 cd10408, SH2_Nck1, Src homology 2 (SH2) domain found in Nck. Nck
proteins are adaptors that modulate actin cytoskeleton
dynamics by linking proline-rich effector molecules to
tyrosine kinases or phosphorylated signaling
intermediates. There are two members known in this
family: Nck1 (Nckalpha) and Nck2 (Nckbeta and Growth
factor receptor-bound protein 4 (Grb4)). They are
characterized by having 3 SH3 domains and a C-terminal
SH2 domain. Nck1 and Nck2 have overlapping functions as
determined by gene knockouts. Both bind receptor
tyrosine kinases and other tyrosine-phosphorylated
proteins through their SH2 domains. In addition they
also bind distinct targets. Neuronal signaling
proteins: EphrinB1, EphrinB2, and Disabled-1 (Dab-1) all
bind to Nck-2 exclusively. And in the case of PDGFR,
Tyr(P)751 binds to Nck1 while Tyr(P)1009 binds to Nck2.
Nck1 and Nck2 have a role in the infection process of
enteropathogenic Escherichia coli (EPEC). Their SH3
domains are involved in recruiting and activating the
N-WASP/Arp2/3 complex inducing actin polymerization
resulting in the production of pedestals, dynamic
bacteria-presenting protrusions of the plasma membrane.
A similar thing occurs in the vaccinia virus where
motile plasma membrane projections are formed beneath
the virus. Recently it has been shown that the SH2
domains of both Nck1 and Nck2 bind the G-protein coupled
receptor kinase-interacting protein 1 (GIT1) in a
phosphorylation-dependent manner. In general SH2 domains
are involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 97
Score = 34.6 bits (79), Expect = 0.016
Identities = 17/52 (32%), Positives = 30/52 (57%), Gaps = 1/52 (1%)
Query: 255 KAWYVGDMSRQRAESILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPHPHVK 305
WY G ++R +AE L + EG F++R+S S+ +++SL + + H K
Sbjct: 1 NPWYYGKVTRHQAEMALNERGNEGDFLIRDSESSPNDFSVSLKAQGKNKHFK 52
>gnl|CDD|198246 cd10383, SH2_SOCS2, Src homology 2 (SH2) domain found in
suppressor of cytokine signaling (SOCS) proteins. SH2
domain found in SOCS proteins. SOCS was first recognized
as a group of cytokine-inducible SH2 (CIS) domain
proteins comprising eight family members in human (CIS
and SOCS1-SOCS7). In addition to the SH2 domain, SOCS
proteins have a variable N-terminal domain and a
conserved SOCS box in the C-terminal domain. SOCS
proteins bind to a substrate via their SH2 domain. The
prototypical members, CIS and SOCS1-SOCS3, have been
shown to regulate growth hormone signaling in vitro and
in a classic negative feedback response compete for
binding at phosphotyrosine sites in JAK kinase and
receptor pathways to displace effector proteins and
target bound receptors for proteasomal degradation. Loss
of SOCS activity results in excessive cytokine signaling
associated with a variety of hematopoietic, autoimmune,
and inflammatory diseases and certain cancers. Members
(SOCS4-SOCS7) were identified by their conserved SOCS
box, an adapter motif of 3 helices that associates
substrate binding domains, such as the SOCS SH2 domain,
ankryin, and WD40 with ubiquitin ligase components.
These show limited cytokine induction. In general SH2
domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 103
Score = 34.9 bits (80), Expect = 0.017
Identities = 18/42 (42%), Positives = 26/42 (61%), Gaps = 2/42 (4%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSS-TKGLYTLSLYT 297
WY G M+ A+ L Q+ EG F+VR+SS + L T+S+ T
Sbjct: 9 WYWGSMTVNEAKEKL-QDAPEGTFLVRDSSHSDYLLTISVKT 49
>gnl|CDD|213017 cd12141, SH3_DNMBP_C2, Second C-terminal Src homology 3 domain of
Dynamin Binding Protein, also called Tuba, and similar
domains. DNMBP or Tuba is a cdc42-specific guanine
nucleotide exchange factor (GEF) that contains four
N-terminal SH3 domains, a central RhoGEF [or Dbl
homology (DH)] domain followed by a Bin/Amphiphysin/Rvs
(BAR) domain, and two C-terminal SH3 domains. It
provides a functional link between dynamin, Rho GTPase
signaling, and actin dynamics. It plays an important
role in regulating cell junction configuration. The
C-terminal SH3 domains of DNMBP bind to N-WASP and
Ena/VASP proteins, which are key regulatory proteins of
the actin cytoskeleton. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 57
Score = 33.6 bits (77), Expect = 0.019
Identities = 19/56 (33%), Positives = 31/56 (55%), Gaps = 7/56 (12%)
Query: 130 ALYPFKAIEGGDLSLEKGA-----EYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
A+Y FKA +LS+ E+ + +E WW + + NG GY+PSNY+++
Sbjct: 4 AVYTFKARSPNELSVSANQRVRILEFSDLTGNKE-WW-LAEANGQKGYVPSNYIRK 57
>gnl|CDD|173724 cd06606, STKc_MAPKKK, Catalytic domain of the Protein
Serine/Threonine Kinase, Mitogen-Activated Protein
Kinase Kinase Kinase. Serine/threonine kinases (STKs),
mitogen-activated protein kinase (MAPK) kinase kinase
(MAPKKK) subfamily, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MAPKKK subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. MAPKKKs (MKKKs or MAP3Ks) are also called
MAP/ERK kinase kinases (MEKKs) in some cases. They
phosphorylate and activate MAPK kinases (MAPKKs or MKKs
or MAP2Ks), which in turn phosphorylate and activate
MAPKs during signaling cascades that are important in
mediating cellular responses to extracellular signals.
This subfamily is composed of the Apoptosis
Signal-regulating Kinases ASK1 (or MAPKKK5) and ASK2 (or
MAPKKK6), MEKK1, MEKK2, MEKK3, MEKK4, as well as plant
and fungal MAPKKKs. Also included in this subfamily are
the cell division control proteins Schizosaccharomyces
pombe Cdc7 and Saccharomyces cerevisiae Cdc15.
Length = 260
Score = 36.8 bits (86), Expect = 0.019
Identities = 18/68 (26%), Positives = 31/68 (45%), Gaps = 6/68 (8%)
Query: 430 ELMLLEELGSGQFGVVRRGKWRGS-----IDVAMMKEGTMSEDDFIE-EAKVMTRLQHQN 483
E E LG G FG V + + + + + E + +E E ++++ LQH N
Sbjct: 1 EWTRGELLGRGSFGSVYLALDKDTGELMAVKSVELSGDSEEELEALEREIRILSSLQHPN 60
Query: 484 LVQLYGVC 491
+V+ YG
Sbjct: 61 IVRYYGSE 68
Score = 31.8 bits (73), Expect = 0.78
Identities = 11/36 (30%), Positives = 19/36 (52%), Gaps = 1/36 (2%)
Query: 203 VLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKN 238
V+ + +D+W+ G + E+ T GK P+ L N
Sbjct: 174 VIRGEEYGRAADIWSLGCTVIEMAT-GKPPWSELGN 208
Score = 28.3 bits (64), Expect = 9.3
Identities = 8/20 (40%), Positives = 14/20 (70%)
Query: 30 QVCKGMAYLERHNYIHRETK 49
Q+ +G+AYL + +HR+ K
Sbjct: 109 QILEGLAYLHSNGIVHRDIK 128
>gnl|CDD|212759 cd11825, SH3_PLCgamma, Src homology 3 domain of Phospholipase C
(PLC) gamma. PLC catalyzes the hydrolysis of
phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2]
to produce Ins(1,4,5)P3 and diacylglycerol (DAG) in
response to various receptors. Ins(1,4,5)P3 initiates
the calcium signaling cascade while DAG functions as an
activator of PKC. PLCgamma catalyzes this reaction in
tyrosine kinase-dependent signaling pathways. It is
activated and recruited to its substrate at the
membrane. Vertebrates contain two forms of PLCgamma,
PLCgamma1, which is widely expressed, and PLCgamma2,
which is primarily found in haematopoietic cells.
PLCgamma contains a Pleckstrin homology (PH) domain
followed by an elongation factor (EF) domain, two
catalytic regions of PLC domains that flank two tandem
SH2 domains, followed by a SH3 domain and C2 domain. The
SH3 domain of PLCgamma1 directly interacts with
dynamin-1 and can serve as a guanine nucleotide exchange
factor (GEF). It also interacts with Cbl, inhibiting its
phosphorylation and activity. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 33.1 bits (76), Expect = 0.021
Identities = 16/53 (30%), Positives = 25/53 (47%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
V ALY ++A +LS K A ++ WW+ + P+NYV+E
Sbjct: 2 VKALYDYRAQRPDELSFCKHAIITNVEKEDGGWWRGDYGGKKQKWFPANYVEE 54
>gnl|CDD|173728 cd06614, STKc_PAK, Catalytic domain of the Protein Serine/Threonine
Kinase, p21-activated kinase. Serine/threonine kinases
(STKs), p21-activated kinase (PAK) subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The PAK subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. PAKs are Rho
family GTPase-regulated kinases that serve as important
mediators in the function of Cdc42 (cell division cycle
42) and Rac. PAKs are implicated in the regulation of
many cellular processes including growth factor
receptor-mediated proliferation, cell polarity, cell
motility, cell death and survival, and actin
cytoskeleton organization. PAK deregulation is
associated with tumor development. PAKs from higher
eukaryotes are classified into two groups (I and II),
according to their biochemical and structural features.
Group I PAKs contain a PBD (p21-binding domain)
overlapping with an AID (autoinhibitory domain), a
C-terminal catalytic domain, SH3 binding sites and a
non-classical SH3 binding site for PIX (PAK-interacting
exchange factor). Group II PAKs contain a PBD and a
catalytic domain, but lack other motifs found in group I
PAKs. Since group II PAKs do not contain an obvious AID,
they may be regulated differently from group I PAKs.
Group I PAKs interact with the SH3 containing proteins
Nck, Grb2 and PIX; no such binding has been demonstrated
for group II PAKs.
Length = 286
Score = 36.8 bits (86), Expect = 0.021
Identities = 21/67 (31%), Positives = 34/67 (50%), Gaps = 4/67 (5%)
Query: 427 DPAELML-LEELGSGQFGVVRRGKWRGS-IDVAM--MKEGTMSEDDFIEEAKVMTRLQHQ 482
DP EL LE++G G G V + R + +VA+ M+ +++ I E +M +H
Sbjct: 16 DPRELYKNLEKIGEGASGEVYKATDRATGKEVAIKKMRLRKQNKELIINEILIMKDCKHP 75
Query: 483 NLVQLYG 489
N+V Y
Sbjct: 76 NIVDYYD 82
Score = 29.1 bits (66), Expect = 5.8
Identities = 15/49 (30%), Positives = 26/49 (53%), Gaps = 2/49 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRETK 49
M GSL + + ++ + N + +C +V +G+ YL N IHR+ K
Sbjct: 97 MDGGSLTDIITQNFVRM--NEPQIAYVCREVLQGLEYLHSQNVIHRDIK 143
>gnl|CDD|165291 PHA02988, PHA02988, hypothetical protein; Provisional.
Length = 283
Score = 36.6 bits (85), Expect = 0.021
Identities = 22/83 (26%), Positives = 45/83 (54%), Gaps = 7/83 (8%)
Query: 165 DKNGSVGYIPSNYVKEKELLGLQKYDDVNGLTLELIHQVLN--YTRFSSKSDVWAYGVLM 222
+N + I K +L + +VN + +++LN ++ ++ K D+++ GV++
Sbjct: 157 TENYKLKIICHGLEK---ILSSPPFKNVNFMVY-FSYKMLNDIFSEYTIKDDIYSLGVVL 212
Query: 223 WEVFTCGKMPYGRLKNTEVVDRV 245
WE+FT GK+P+ L E+ D +
Sbjct: 213 WEIFT-GKIPFENLTTKEIYDLI 234
>gnl|CDD|212845 cd11912, SH3_Bzz1_1, First Src Homology 3 domain of Bzz1 and
similar domains. Bzz1 (or Bzz1p) is a
WASP/Las17-interacting protein involved in endocytosis
and trafficking to the vacuole. It physically interacts
with type I myosins and functions in the early steps of
endocytosis. Together with other proteins, it induces
membrane scission in yeast. Bzz1 contains an N-terminal
F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), a
central coiled-coil, and two C-terminal SH3 domains.
This model represents the first C-terminal SH3 domain.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 33.4 bits (77), Expect = 0.022
Identities = 15/51 (29%), Positives = 30/51 (58%), Gaps = 1/51 (1%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMD-DTQEHWWKVKDKNGSVGYIPSNYVK 179
LY + A ++S+ +G E V++ D W KV++ +G G +P++Y++
Sbjct: 4 VLYDYTASGDDEVSISEGEEVTVLEPDDGSGWTKVRNGSGEEGLVPTSYIE 54
>gnl|CDD|212988 cd12055, SH3_CIN85_2, Second Src Homology 3 domain (SH3B) of
Cbl-interacting protein of 85 kDa. CIN85, also called
SH3 domain-containing kinase-binding protein 1 (SH3KBP1)
or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor
protein that is involved in the downregulation of
receptor tyrosine kinases by facilitating endocytosis
through interaction with endophilin-associated ubiquitin
ligase Cbl proteins. It is also important in many other
cellular processes including vesicle-mediated transport,
cytoskeletal remodelling, apoptosis, cell adhesion and
migration, and viral infection, among others. CIN85
exists as multiple variants from alternative splicing;
the main variant contains three SH3 domains, a
proline-rich region, and a C-terminal coiled-coil
domain. All of these domains enable CIN85 to bind
various protein partners and assemble complexes that
have been implicated in many different functions. This
alignment model represents the second SH3 domain (SH3B)
of CIN85. SH3B has been shown to bind Cbl proline-rich
peptides and ubiquitin. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 33.0 bits (75), Expect = 0.023
Identities = 16/40 (40%), Positives = 24/40 (60%), Gaps = 1/40 (2%)
Query: 141 DLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
+L L+ G EV+ + +E WW+ NG G PSN++KE
Sbjct: 15 ELELKVGDIIEVVGEVEEGWWE-GVLNGKTGMFPSNFIKE 53
>gnl|CDD|198272 cd10409, SH2_Nck2, Src homology 2 (SH2) domain found in Nck. Nck
proteins are adaptors that modulate actin cytoskeleton
dynamics by linking proline-rich effector molecules to
tyrosine kinases or phosphorylated signaling
intermediates. There are two members known in this
family: Nck1 (Nckalpha) and Nck2 (Nckbeta and Growth
factor receptor-bound protein 4 (Grb4)). They are
characterized by having 3 SH3 domains and a C-terminal
SH2 domain. Nck1 and Nck2 have overlapping functions as
determined by gene knockouts. Both bind receptor
tyrosine kinases and other tyrosine-phosphorylated
proteins through their SH2 domains. In addition they
also bind distinct targets. Neuronal signaling
proteins: EphrinB1, EphrinB2, and Disabled-1 (Dab-1) all
bind to Nck-2 exclusively. And in the case of PDGFR,
Tyr(P)751 binds to Nck1 while Tyr(P)1009 binds to Nck2.
Nck1 and Nck2 have a role in the infection process of
enteropathogenic Escherichia coli (EPEC). Their SH3
domains are involved in recruiting and activating the
N-WASP/Arp2/3 complex inducing actin polymerization
resulting in the production of pedestals, dynamic
bacteria-presenting protrusions of the plasma membrane.
A similar thing occurs in the vaccinia virus where
motile plasma membrane projections are formed beneath
the virus. Recently it has been shown that the SH2
domains of both Nck1 and Nck2 bind the G-protein coupled
receptor kinase-interacting protein 1 (GIT1) in a
phosphorylation-dependent manner. In general SH2 domains
are involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 98
Score = 34.2 bits (78), Expect = 0.024
Identities = 18/56 (32%), Positives = 32/56 (57%), Gaps = 1/56 (1%)
Query: 255 KAWYVGDMSRQRAESILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHI 309
K WY G+++R +AE L + EG F++R+S S+ +++SL + H K +
Sbjct: 1 KEWYYGNVTRHQAECALNERGVEGDFLIRDSESSPSDFSVSLKAVGKNKHFKVQLV 56
>gnl|CDD|212930 cd11997, SH3_PACSIN3, Src homology 3 domain of Protein kinase C and
Casein kinase Substrate in Neurons 3 (PACSIN3). PACSIN
3 or Syndapin III (Synaptic dynamin-associated protein
III) is expressed ubiquitously and regulates glucose
uptake in adipocytes through its role in GLUT1
trafficking. It also modulates the subcellular
localization and stimulus-specific function of the
cation channel TRPV4. PACSINs act as regulators of
cytoskeletal and membrane dynamics. Vetebrates harbor
three isoforms with distinct expression patterns and
specific functions. PACSINs contain an N-terminal F-BAR
domain and a C-terminal SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 56
Score = 33.0 bits (75), Expect = 0.025
Identities = 18/53 (33%), Positives = 28/53 (52%), Gaps = 1/53 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEH-WWKVKDKNGSVGYIPSNYVK 179
V ALY + E +LS + G E + + E W K + +G +G P+NYV+
Sbjct: 4 VRALYDYTGQEADELSFKAGEELLKIGEEDEQGWCKGRLLSGRIGLYPANYVE 56
>gnl|CDD|212822 cd11889, SH3_Cyk3p-like, Src Homology 3 domain of Cytokinesis
protein 3 and similar proteins. Cytokinesis protein 3
(Cyk3 or Cyk3p) is a component of the actomyosin ring
independent cytokinesis pathway in yeast. It interacts
with Inn1 and facilitates its recruitment to the bud
neck, thereby promoting cytokinesis. Cyk3p contains an
N-terminal SH3 domain and a C-terminal
transglutaminase-like domain. The Cyk3p SH3 domain binds
to the C-terminal proline-rich region of Inn1. SH3
domains bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs;
they play a role in the regulation of enzymes by
intramolecular interactions, changing the subcellular
localization of signal pathway components and mediate
multiprotein complex assemblies.
Length = 53
Score = 32.9 bits (75), Expect = 0.025
Identities = 19/52 (36%), Positives = 26/52 (50%), Gaps = 1/52 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDK-NGSVGYIPSNYV 178
V A+Y + GDL +G EV+ WW K + NG+ G PSN+V
Sbjct: 2 VKAVYSWAGETEGDLGFLEGDLIEVLSIGDGSWWSGKLRRNGAEGIFPSNFV 53
>gnl|CDD|212895 cd11962, SH3_Abp1_fungi_C1, First C-terminal Src homology 3 domain
of Fungal Actin-binding protein 1. Abp1 is an adaptor
protein that functions in receptor-mediated endocytosis
and vesicle trafficking. It contains an N-terminal
actin-binding module, the actin-depolymerizing factor
(ADF) homology domain, a central proline-rich region,
and a C-terminal SH3 domain (many yeast Abp1 proteins
contain two C-terminal SH3 domains). Yeast Abp1 also
contains two acidic domains that bind directly to the
Arp2/3 complex, which is required to initiate actin
polymerization. The SH3 domain of yeast Abp1 binds and
localizes the kinases, Ark1p and Prk1p, which facilitate
actin patch disassembly following vesicle
internalization. It also mediates the localization to
the actin patch of the synaptojanin-like protein, Sjl2p,
which plays a key role in endocytosis. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 54
Score = 32.8 bits (75), Expect = 0.025
Identities = 16/51 (31%), Positives = 25/51 (49%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
V LY ++ E ++ L +G ++ E WW + G G PSNYV+
Sbjct: 3 VVLYDYEKDEDNEIELVEGEIVTNIEMVDEDWWMGTNSKGESGLFPSNYVE 53
>gnl|CDD|212992 cd12059, SH3_MLK1-3, Src Homology 3 domain of Mixed Lineage Kinases
1, 2, and 3. MLKs 1, 2, and 3 are Serine/Threonine
Kinases (STKs), catalyzing the transfer of the
gamma-phosphoryl group from ATP to S/T residues on
protein substrates. MLKs act as mitogen-activated
protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs),
which phosphorylate and activate MAPK kinases (MAPKKs or
MKKs or MAP2Ks), which in turn phosphorylate and
activate MAPKs during signaling cascades that are
important in mediating cellular responses to
extracellular signals. MLKs play roles in immunity and
inflammation, as well as in cell death, proliferation,
and cell cycle regulation. Little is known about the
specific function of MLK1, also called MAP3K9. It is
capable of activating the c-Jun N-terminal kinase
pathway. Mice lacking both MLK1 and MLK2 are viable,
fertile, and have normal life spans. MLK2, also called
MAP3K10, is abundant in brain, skeletal muscle, and
testis. It functions upstream of the MAPK, c-Jun
N-terminal kinase. It binds hippocalcin, a
calcium-sensor protein that protects neurons against
calcium-induced cell death. Both MLK2 and hippocalcin
may be associated with the pathogenesis of Parkinson's
disease. MLK3, also called MAP3K11, is highly expressed
in breast cancer cells and its signaling through c-Jun
N-terminal kinase has been implicated in the migration,
invasion, and malignancy of cancer cells. It also
functions as a negative regulator of Inhibitor of
Nuclear Factor-KappaB Kinase (IKK) and thus, impacts
inflammation and immunity. MLKs contain an SH3 domain, a
catalytic kinase domain, a leucine zipper, a
proline-rich region, and a CRIB domain that mediates
binding to GTP-bound Cdc42 and Rac. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 58
Score = 33.2 bits (76), Expect = 0.025
Identities = 20/56 (35%), Positives = 31/56 (55%), Gaps = 10/56 (17%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMD-DTQ----EHWW--KVKDKNGSVGYIPSNYV 178
A++ ++A +L+L +G EV+ D+ E WW K+ D+ VG PSNYV
Sbjct: 4 AVFDYEASAEDELTLRRGDRVEVLSKDSAVSGDEGWWTGKINDR---VGIFPSNYV 56
>gnl|CDD|198219 cd10356, SH2_ShkA_ShkC, Src homology 2 (SH2) domain found in SH2
domain-bearing protein kinases A and C (ShkA and ShkC).
SH2-bearing genes cloned from Dictyostelium include two
transcription factors, STATa and STATc, and a signaling
factor, SHK1 (shkA). A database search of the
Dictyostelium discoideum genome revealed two additional
putative STAT sequences, dd-STATb and dd-STATd, and four
additional putative SHK genes, dd-SHK2 (shkB), dd-SHK3
(shkC), dd-SHK4 (shkD), and dd-SHK5 (shkE). This model
contains members of shkA and shkC. All of the SHK
members are most closely related to the protein kinases
found in plants. However these kinases in plants are
not conjugated to any SH2 or SH2-like sequences.
Alignment data indicates that the SHK SH2 domains carry
some features of the STAT SH2 domains in Dictyostelium.
When STATc's linker domain was used for a BLAST search,
the sequence between the protein kinase domain and the
SH2 domain (the linker) of SHK was recovered, suggesting
a close relationship among these molecules within this
region. SHK's linker domain is predicted to contain an
alpha-helix which is indeed homologous to that of STAT.
Based on the phylogenetic alignment, SH2 domains can be
grouped into two categories, STAT-type and Src-type. SHK
family members are in between, but are closer to the
STAT-type which indicates a close relationship between
SHK and STAT families in their SH2 domains and further
supports the notion that SHKs linker-SH2 domain evolved
from STAT or STATL (STAT-like Linker-SH2) domain found
in plants. In SHK, STAT, and SPT6, the linker-SH2
domains all reside exclusively in the C-terminal
regions. In general SH2 domains are involved in signal
transduction. They typically bind pTyr-containing
ligands via two surface pockets, a pTyr and hydrophobic
binding pocket, allowing proteins with SH2 domains to
localize to tyrosine phosphorylated sites.
Length = 113
Score = 34.5 bits (79), Expect = 0.026
Identities = 23/71 (32%), Positives = 37/71 (52%), Gaps = 5/71 (7%)
Query: 256 AWYVGDMSRQRAESILKQEDKEGCFVVRNSSTK-GLYTLSLYTK---VPHPHVKHYHIKQ 311
AW+ GD+S +E+ L + EG F+VR S+++ G YT+S +K + H + K
Sbjct: 11 AWFHGDISTSESENRLNGK-PEGTFLVRFSTSEPGAYTISKVSKNGGISHQRIHRPGGKF 69
Query: 312 NSRGEFFLSEK 322
+LS K
Sbjct: 70 QVNNSKYLSVK 80
>gnl|CDD|212924 cd11991, SH3_Intersectin1_3, Third Src homology 3 domain (or SH3C)
of Intersectin-1. Intersectin-1 (ITSN1) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN1 localizes in membranous organelles, CCPs, the
Golgi complex, and may be involved in the cell membrane
trafficking system. It exists in alternatively spliced
short and long isoforms. The short isoform contains two
Eps15 homology domains (EH1 and EH2), a coiled-coil
region and five SH3 domains (SH3A-E), while the long
isoform, in addition, contains RhoGEF (also called
Dbl-homologous or DH), Pleckstrin homology (PH) and C2
domains. The third SH3 domain (or SH3C) of ITSN1 has
been shown to bind many proteins including dynamin1/2,
CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK,
among others. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 52
Score = 32.6 bits (74), Expect = 0.031
Identities = 19/53 (35%), Positives = 30/53 (56%), Gaps = 6/53 (11%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW--KVKDKNGSVGYIPSNYVK 179
VA+Y +++ E GDL+ ++G + ++ WW V DK G PSNYV+
Sbjct: 3 VAMYTYESNEQGDLTFQQG-DVILVTKKDGDWWTGTVGDK---TGVFPSNYVR 51
Score = 27.6 bits (61), Expect = 2.0
Identities = 17/52 (32%), Positives = 29/52 (55%), Gaps = 4/52 (7%)
Query: 76 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW--KVKDKNGIRKPDQMIRP 125
VA+Y +++ E GDL+ ++G + ++ WW V DK G+ P +RP
Sbjct: 3 VAMYTYESNEQGDLTFQQG-DVILVTKKDGDWWTGTVGDKTGVF-PSNYVRP 52
>gnl|CDD|198203 cd10340, SH2_N-SH2_SHP_like, N-terminal Src homology 2 (N-SH2)
domain found in SH2 domain Phosphatases (SHP) proteins.
The SH2 domain phosphatases (SHP-1, SHP-2/Syp,
Drosophila corkscrew (csw), and Caenorhabditis elegans
Protein Tyrosine Phosphatase (Ptp-2)) are cytoplasmic
signaling enzymes. They are both targeted and regulated
by interactions of their SH2 domains with
phosphotyrosine docking sites. These proteins contain
two SH2 domains (N-SH2, C-SH2) followed by a tyrosine
phosphatase (PTP) domain, and a C-terminal extension.
Shp1 and Shp2 have two tyrosyl phosphorylation sites in
their C-tails, which are phosphorylated differentially
by receptor and nonreceptor PTKs. Csw retains the
proximal tyrosine and Ptp-2 lacks both sites.
Shp-binding proteins include receptors, scaffolding
adapters, and inhibitory receptors. Some of these bind
both Shp1 and Shp2 while others bind only one. Most
proteins that bind a Shp SH2 domain contain one or more
immuno-receptor tyrosine-based inhibitory motifs
(ITIMs): [IVL]xpYxx[IVL]. Shp1 N-SH2 domain blocks the
catalytic domain and keeps the enzyme in the inactive
conformation, and is thus believed to regulate the
phosphatase activity of SHP-1. Its C-SH2 domain is
thought to be involved in searching for phosphotyrosine
activators. The SHP2 N-SH2 domain is a conformational
switch; it either binds and inhibits the phosphatase, or
it binds phosphoproteins and activates the enzyme. The
C-SH2 domain contributes binding energy and specificity,
but it does not have a direct role in activation. Csw
SH2 domain function is essential, but either SH2 domain
can fulfill this requirement. The role of the csw SH2
domains during Sevenless receptor tyrosine kinase (SEV)
signaling is to bind Daughter of Sevenless rather than
activated SEV. Ptp-2 acts in oocytes downstream of
sheath/oocyte gap junctions to promote major sperm
protein (MSP)-induced MAP Kinase (MPK-1)
phosphorylation. Ptp-2 functions in the oocyte
cytoplasm, not at the cell surface to inhibit multiple
RasGAPs, resulting in sustained Ras activation. It is
thought that MSP triggers PTP-2/Ras activation and ROS
production to stimulate MPK-1 activity essential for
oocyte maturation and that secreted MSP domains and
Cu/Zn superoxide dismutases function antagonistically to
control ROS and MAPK signaling. In general SH2 domains
are involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 99
Score = 33.9 bits (78), Expect = 0.033
Identities = 19/65 (29%), Positives = 32/65 (49%), Gaps = 6/65 (9%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSRG 315
W+ +S AE++LK +G F+ R S S G +TLS+ + HIK + G
Sbjct: 2 WFHPVISGIEAENLLKTRGVDGSFLARPSKSNPGDFTLSV-----RRGDEVTHIKIQNTG 56
Query: 316 EFFLS 320
+++
Sbjct: 57 DYYDL 61
>gnl|CDD|212880 cd11947, SH3_GRAP2_N, N-terminal Src homology 3 domain of
GRB2-related adaptor protein 2. GRAP2 is also called
GADS (GRB2-related adapter downstream of Shc), GrpL,
GRB2L, Mona, or GRID (Grb2-related protein with insert
domain). It is expressed specifically in the
hematopoietic system. It plays an important role in T
cell receptor (TCR) signaling by promoting the formation
of the SLP-76:LAT complex, which couples the TCR to the
Ras pathway. It also have roles in antigen-receptor and
tyrosine kinase mediated signaling. GRAP2 is unique from
other GRB2-like adaptor proteins in that it can be
regulated by caspase cleavage. It contains an N-terminal
SH3 domain, a central SH2 domain, and a C-terminal SH3
domain. The N-terminal SH3 domain of the related protein
GRB2 binds to Sos and Sos-derived proline-rich peptides.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 52
Score = 32.5 bits (74), Expect = 0.035
Identities = 15/50 (30%), Positives = 27/50 (54%), Gaps = 2/50 (4%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
+ F A +LS +KG +++ + + W+K + NG GY+P N+V
Sbjct: 3 RGKFDFTASGEDELSFKKGDVLKILS-SDDIWFKA-ELNGEEGYVPKNFV 50
>gnl|CDD|173733 cd07829, STKc_CDK_like, Catalytic domain of Cyclin-Dependent
protein Kinase-like Serine/Threonine Kinases.
Serine/Threonine Kinases (STKs), Cyclin-Dependent
protein Kinase (CDK)-like subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK-like subfamily
is part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. CDKs belong to a large family of STKs that are
regulated by their cognate cyclins. Together, they are
involved in the control of cell-cycle progression,
transcription, and neuronal function. CDKs are partly
regulated by their subcellular localization, which
defines substrate phosphorylation and the resulting
specific function. CDK1, CDK2, CDK4, and CDK6 have
well-defined functions in the cell cycle, such as the
regulation of the early G1 phase by CDK4 or CDK6, the
G1/S phase transition by CDK2, or the entry of mitosis
by CDK1. They also exhibit overlapping cyclin
specificity and functions in certain conditions.
Knockout mice with a single CDK deleted remain viable
with specific phenotypes, showing that some CDKs can
compensate for each other. For example, CDK4 can
compensate for the loss of CDK6, however, double
knockout mice with both CDK4 and CDK6 deleted die in
utero. CDK8 and CDK9 are mainly involved in
transcription while CDK5 is implicated in neuronal
function. CDK7 plays essential roles in both the cell
cycle as a CDK-Activating Kinase (CAK) and in
transcription as a component of the general
transcription factor TFIIH.
Length = 282
Score = 35.9 bits (84), Expect = 0.037
Identities = 19/73 (26%), Positives = 40/73 (54%), Gaps = 6/73 (8%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDD------FIEEAKVMTRLQHQNLVQL 487
LE+LG G +GVV + + + + ++ +K+ + ++ + E ++ L+H N+V+L
Sbjct: 4 LEKLGEGTYGVVYKARDKKTGEIVALKKIRLDNEEEGIPSTALREISLLKELKHPNIVKL 63
Query: 488 YGVCSKHRPIYIV 500
V R +Y+V
Sbjct: 64 LDVIHTERKLYLV 76
>gnl|CDD|213006 cd12073, SH3_HS1, Src homology 3 domain of Hematopoietic lineage
cell-specific protein 1. HS1, also called HCLS1
(hematopoietic cell-specific Lyn substrate 1), is a
cortactin homolog expressed specifically in
hematopoietic cells. It is an actin regulatory protein
that binds the Arp2/3 complex and stabilizes branched
actin filaments. It is required for cell spreading and
signaling in lymphocytes. It regulates cytoskeletal
remodeling that controls lymphocyte trafficking, and it
also affects tissue invasion and infiltration of
leukemic B cells. Like cortactin, HS1 contains an
N-terminal acidic domain, several copies of a repeat
domain found in cortactin and HS1, a proline-rich
region, and a C-terminal SH3 domain. The N-terminal
region binds the Arp2/3 complex and F-actin, while the
C-terminal region acts as an adaptor or scaffold that
can connect varied proteins that bind the SH3 domain
within the actin network. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 32.5 bits (74), Expect = 0.037
Identities = 15/51 (29%), Positives = 24/51 (47%), Gaps = 1/51 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
VALY ++ ++S + ++ E WWK G G P+NYV+
Sbjct: 4 VALYDYQGEGDDEISFDPQETITDIEMVDEGWWKGTCH-GHRGLFPANYVE 53
>gnl|CDD|173739 cd07838, STKc_CDK4_6_like, Catalytic domain of Cyclin-Dependent
protein Kinase 4 and 6-like Serine/Threonine Kinases.
Serine/Threonine Kinases (STKs), Cyclin-dependent
protein kinase 4 (CDK4) and CDK6-like subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK4/6-like
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. CDKs belong to a large family of STKs that are
regulated by their cognate cyclins. Together, they are
involved in the control of cell-cycle progression,
transcription, and neuronal function. CDK4 and CDK6
partner with D-type cyclins to regulate the early G1
phase of the cell cycle. They are the first kinase
activated by mitogenic signals to release cells from the
G0 arrested state. CDK4 and CDK6 are both expressed
ubiquitously, associate with all three D cyclins (D1, D2
and D3), and phosphorylate the retinoblastoma (pRb)
protein. They are also regulated by the INK4 family of
inhibitors which associate with either the CDK alone or
the CDK/cyclin complex. CDK4 and CDK6 show differences
in subcellular localization, sensitivity to some
inhibitors, timing in activation, tumor selectivity, and
possibly substrate profiles. Although CDK4 and CDK6 seem
to show some redundancy, they also have discrete,
nonoverlapping functions. CDK6 plays an important role
in cell differentiation.
Length = 287
Score = 35.7 bits (83), Expect = 0.038
Identities = 16/71 (22%), Positives = 32/71 (45%), Gaps = 9/71 (12%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDD------FIEEAKVMTRLQ---HQNL 484
L E+G G +G V + + + +K+ + + + E ++ +L+ H N+
Sbjct: 4 LAEIGEGAYGTVYKARDLNTGRFVALKKVRVPLSEEGIPLSTLREIALLKQLESFEHPNI 63
Query: 485 VQLYGVCSKHR 495
V+L VC R
Sbjct: 64 VRLLDVCHGPR 74
>gnl|CDD|143344 cd07839, STKc_CDK5, Catalytic domain of the Serine/Threonine
Kinase, Cyclin-Dependent protein Kinase 5.
Serine/Threonine Kinases (STKs), Cyclin-Dependent
protein Kinase 5 (CDK5) subfamily, catalytic (c) domain.
STKs catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The CDK5 subfamily is part of a larger
superfamily that includes the catalytic domains of other
protein STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. CDKs belong to a large family
of STKs that are regulated by their cognate cyclins.
Together, they are involved in the control of cell-cycle
progression, transcription, and neuronal function. CDK5
is unusual in that it is regulated by non-cyclin
proteins, p35 and p39. It is highly expressed in the
nervous system and is critical in normal neural
development and function. It plays a role in neuronal
migration and differentiation, and is also important in
synaptic plasticity and learning. CDK5 also participates
in protecting against cell death and promoting
angiogenesis. Impaired CDK5 activity is implicated in
Alzheimer's disease, amyotrophic lateral sclerosis,
Parkinson's disease, Huntington's disease and acute
neuronal injury.
Length = 284
Score = 35.9 bits (83), Expect = 0.039
Identities = 20/73 (27%), Positives = 40/73 (54%), Gaps = 6/73 (8%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDD------FIEEAKVMTRLQHQNLVQL 487
LE++G G +G V + K R + ++ +K + +DD + E ++ L+H+N+V+L
Sbjct: 5 LEKIGEGTYGTVFKAKNRETHEIVALKRVRLDDDDEGVPSSALREICLLKELKHKNIVRL 64
Query: 488 YGVCSKHRPIYIV 500
Y V + + +V
Sbjct: 65 YDVLHSDKKLTLV 77
>gnl|CDD|145407 pfam02232, Alpha_TIF, Alpha trans-inducing protein (Alpha-TIF).
Alpha-TIF, a virion protein (VP16), is involved in
transcriptional activation of viral immediate early (IE)
promoters (alpha genes). Specificity of tegument protein
VP16 of human herpesvirus 2 for IE genes is conferred by
the 400 residue N-terminal, the 80 residue C-terminal is
responsible for transcriptional activation.
Length = 346
Score = 35.8 bits (83), Expect = 0.043
Identities = 23/83 (27%), Positives = 36/83 (43%), Gaps = 11/83 (13%)
Query: 5 SLLNYLRRHENTLGGNVGL-LLDMCIQVCKGMAYLERHNYIHRETKK-------SLYPSS 56
+LL YLR + + G LD + + + L Y +RE + LY S
Sbjct: 137 ALLRYLR--ASARRLSRGARALDDNREAQEKLRQLIAERY-YREAARLARLLYLHLYLSV 193
Query: 57 LNEISFILWPDQMIRPKVVVALY 79
E+S+ L Q++R V V+L
Sbjct: 194 TREVSWRLHAQQVMRQDVFVSLR 216
>gnl|CDD|212952 cd12019, SH3_Tks5_4, Fourth Src homology 3 domain of Tyrosine
kinase substrate with five SH3 domains. Tks5, also
called SH3 and PX domain-containing protein 2A
(SH3PXD2A) or Five SH (FISH), is a scaffolding protein
and Src substrate that is localized in podosomes, which
are electron-dense structures found in Src-transformed
fibroblasts, osteoclasts, macrophages, and some invasive
cancer cells. It binds and regulates some members of the
ADAMs family of transmembrane metalloproteases, which
function as sheddases and mediators of cell and matrix
interactions. It is required for podosome formation,
degradation of the extracellular matrix, and cancer cell
invasion. Tks5 contains an N-terminal Phox homology (PX)
domain and five SH3 domains. This model characterizes
the fourth SH3 domain of Tks5. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 32.3 bits (73), Expect = 0.043
Identities = 12/47 (25%), Positives = 26/47 (55%), Gaps = 1/47 (2%)
Query: 134 FKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
++ ++ ++S G E EV++ + WW V+ G+ PS+Y++
Sbjct: 8 YQKVQDSEISFPAGVEVEVLEKQESGWWYVRFGE-LEGWAPSHYLEL 53
>gnl|CDD|212727 cd11793, SH3_ephexin1_like, Src homology 3 domain of ephexin-1-like
SH3 domain containing Rho guanine nucleotide exchange
factors. Members of this family contain RhoGEF (also
called Dbl-homologous or DH), Pleckstrin Homology (PH),
and C-terminal SH3 domains. They include the Rho guanine
nucleotide exchange factors ARHGEF5, ARHGEF16, ARHGEF19,
ARHGEF26, ARHGEF27 (also called ephexin-1), and similar
proteins, and are also called ephexins because they
interact directly with ephrin A receptors. GEFs interact
with Rho GTPases via their DH domains to catalyze
nucleotide exchange by stabilizing the nucleotide-free
GTPase intermediate. They play important roles in
neuronal development. The SH3 domains of ARHGEFs play an
autoinhibitory role through intramolecular interactions
with a proline-rich region N-terminal to the DH domain.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 32.3 bits (74), Expect = 0.046
Identities = 14/54 (25%), Positives = 31/54 (57%), Gaps = 1/54 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK-VKDKNGSVGYIPSNYVKE 180
V ++ + A + +L+LE+G V+ + W++ + ++G G+ PS+Y +E
Sbjct: 2 VQCVHAYTAQQPDELTLEEGDVVNVLRKMPDGWYEGERLRDGERGWFPSSYTEE 55
>gnl|CDD|133209 cd05078, PTK_Jak2_Jak3_rpt1, Pseudokinase (repeat 1) domain of the
Protein Tyrosine Kinases, Janus kinases 2 and 3.
Protein Tyrosine Kinase (PTK) family; Janus kinase 2
(Jak2) and Jak3; pseudokinase domain (repeat 1). The
PTKc (catalytic domain) family to which this subfamily
belongs, is part of a larger superfamily that includes
the catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Jak2 and
Jak3 are members of the Janus kinase (Jak) subfamily of
proteins, which are cytoplasmic (or nonreceptor) tyr
kinases containing an N-terminal FERM domain, followed
by a Src homology 2 (SH2) domain, a pseudokinase domain,
and a C-terminal tyr kinase domain. The pseudokinase
domain shows similarity to tyr kinases but lacks crucial
residues for catalytic activity and ATP binding. It
modulates the kinase activity of the C-terminal
catalytic domain. Jaks are crucial for cytokine receptor
signaling. They are activated by autophosphorylation
upon cytokine-induced receptor aggregation, and
subsequently trigger downstream signaling events such as
the phosphorylation of signal transducers and activators
of transcription (STATs). Jak2 is widely expressed in
many tissues while Jak3 is expressed only in
hematopoietic cells. Jak2 is essential for the signaling
of hormone-like cytokines such as growth hormone,
erythropoietin, thrombopoietin, and prolactin, as well
as some IFNs and cytokines that signal through the IL-3
and gp130 receptors. Jak3 binds the shared receptor
subunit common gamma chain and thus, is essential in the
signaling of cytokines that use it such as IL-2, IL-4,
IL-7, IL-9, IL-15, and IL-21. Disruption of Jak2 in mice
results in an embryonic lethal phenotype with multiple
defects including erythropoietic and cardiac
abnormalities. It is the only Jak gene that results in a
lethal phenotype when disrupted in mice. A mutation in
the pseudokinase domain of Jak2, V617F, is present in
many myeloproliferative diseases, including almost all
patients with polycythemia vera, and 50% of patients
with essential thrombocytosis and myelofibrosis. Jak3 is
important in lymphoid development and myeloid cell
differentiation. Inactivating mutations in Jak3 have
been reported in humans with severe combined
immunodeficiency (SCID).
Length = 258
Score = 35.6 bits (82), Expect = 0.047
Identities = 21/68 (30%), Positives = 30/68 (44%), Gaps = 11/68 (16%)
Query: 435 EELGSGQFGVVRRGKWRGSIDVA-----------MMKEGTMSEDDFIEEAKVMTRLQHQN 483
E LG G F + +G R D + K + F E A +M++L H++
Sbjct: 1 ESLGQGTFTKIFKGIRREVGDYGELHKTEVLLKVLDKSHRNYSESFFEAASMMSQLSHKH 60
Query: 484 LVQLYGVC 491
LV YGVC
Sbjct: 61 LVLNYGVC 68
Score = 29.8 bits (67), Expect = 3.1
Identities = 8/20 (40%), Positives = 14/20 (70%)
Query: 213 SDVWAYGVLMWEVFTCGKMP 232
+D W++G +WE+F+ G P
Sbjct: 186 ADKWSFGTTLWEIFSGGDKP 205
Score = 29.0 bits (65), Expect = 5.8
Identities = 12/45 (26%), Positives = 25/45 (55%), Gaps = 2/45 (4%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIH 45
++ GSL YL++++N + N+ L++ Q+ + +LE H
Sbjct: 81 VKFGSLDTYLKKNKNLI--NISWKLEVAKQLAWALHFLEDKGLTH 123
>gnl|CDD|173726 cd06610, STKc_OSR1_SPAK, Catalytic domain of the Protein
Serine/Threonine Kinases, Oxidative stress response
kinase and Ste20-related proline alanine-rich kinase.
Serine/threonine kinases (STKs), oxidative stress
response kinase (OSR1) and Ste20-related proline
alanine-rich kinase (SPAK) subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The OSR1 and SPAK
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. SPAK is also referred to as STK39 or PASK
(proline-alanine-rich STE20-related kinase). OSR1 and
SPAK regulate the activity of cation-chloride
cotransporters through direct interaction and
phosphorylation. They are also implicated in
cytoskeletal rearrangement, cell differentiation,
transformation and proliferation. OSR1 and SPAK contain
a conserved C-terminal (CCT) domain, which recognizes a
unique motif ([RK]FX[VI]) present in their activating
kinases (WNK1/WNK4) and their substrates.
Length = 267
Score = 35.4 bits (82), Expect = 0.047
Identities = 16/73 (21%), Positives = 33/73 (45%), Gaps = 5/73 (6%)
Query: 433 LLEELGSGQFGVVRR-----GKWRGSIDVAMMKEGTMSEDDFIEEAKVMTRLQHQNLVQL 487
L+E +G G VV + +I +++ S D+ +E + M++ H N+V+
Sbjct: 5 LIEVIGVGATAVVYAAICLPNNEKVAIKRIDLEKCQTSVDELRKEVQAMSQCNHPNVVKY 64
Query: 488 YGVCSKHRPIYIV 500
Y +++V
Sbjct: 65 YTSFVVGDELWLV 77
>gnl|CDD|212715 cd11781, SH3_Sorbs_1, First Src Homology 3 domain of Sorbin and SH3
domain containing (Sorbs) proteins and similar domains.
This family, also called the vinexin family, is composed
predominantly of adaptor proteins containing one sorbin
homology (SoHo) and three SH3 domains. Members include
the first SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or
ArgBP2), Vinexin (or Sorbs3), and similar domains. They
are involved in the regulation of cytoskeletal
organization, cell adhesion, and growth factor
signaling. Members of this family bind multiple partners
including signaling molecules like c-Abl, c-Arg, Sos,
and c-Cbl, as well as cytoskeletal molecules such as
vinculin and afadin. They may have overlapping
functions. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 32.3 bits (74), Expect = 0.049
Identities = 20/51 (39%), Positives = 31/51 (60%), Gaps = 1/51 (1%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
ALYPFKA +LSL+KG + ++W++ + NG VG P++YV+
Sbjct: 4 ALYPFKAQSAKELSLKKGDIIYIRRQIDKNWYE-GEHNGRVGIFPASYVEI 53
>gnl|CDD|143333 cd05118, STKc_CMGC, Catalytic domain of CMGC family
Serine/Threonine Kinases. Serine/Threonine Kinases
(STKs), CMGC family, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
CMGC family is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. The CMGC family consists of Cyclin-Dependent
protein Kinases (CDKs), Mitogen-activated protein
kinases (MAPKs) such as Extracellular signal-regulated
kinase (ERKs), c-Jun N-terminal kinases (JNKs), and p38,
and similar proteins. CDKs belong to a large subfamily
of STKs that are regulated by their cognate cyclins.
Together, they are involved in the control of cell-cycle
progression, transcription, and neuronal function. MAPKs
serve as important mediators of cellular responses to
extracellular signals. They control critical cellular
functions including differentiation, proliferation,
migration, and apoptosis. They are also implicated in
the pathogenesis of many diseases including multiple
types of cancer, stroke, diabetes, and chronic
inflammation.
Length = 283
Score = 35.4 bits (82), Expect = 0.050
Identities = 16/75 (21%), Positives = 37/75 (49%), Gaps = 6/75 (8%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDDFIE------EAKVMTRLQHQNLVQL 487
L ++G G +GVV + + + + ++ +K+ + + E K++ L H N+++L
Sbjct: 4 LGKIGEGTYGVVYKARDKLTGEIVAIKKIKLRFESEGIPKTALREIKLLKELNHPNIIKL 63
Query: 488 YGVCSKHRPIYIVTD 502
V +Y+V +
Sbjct: 64 LDVFRHKGDLYLVFE 78
Score = 30.8 bits (70), Expect = 1.8
Identities = 7/22 (31%), Positives = 13/22 (59%)
Query: 30 QVCKGMAYLERHNYIHRETKKS 51
Q+ +G+A+ H +HR+ K
Sbjct: 106 QLLQGLAFCHSHGILHRDLKPE 127
>gnl|CDD|173627 cd05037, PTK_Jak_rpt1, Pseudokinase (repeat 1) domain of the
Protein Tyrosine Kinases, Janus kinases. Protein
Tyrosine Kinase (PTK) family; Janus kinase (Jak)
subfamily; pseudokinase domain (repeat1). The Jak
subfamily is composed of Jak1, Jak2, Jak3, TYK2, and
similar proteins. The PTKc (catalytic domain) family to
which this subfamily belongs, is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
Jak subfamily proteins are cytoplasmic (or nonreceptor)
tyr kinases containing an N-terminal FERM domain,
followed by a Src homology 2 (SH2) domain, a
pseudokinase domain, and a C-terminal catalytic tyr
kinase domain. The pseudokinase domain shows similarity
to tyr kinases but lacks crucial residues for catalytic
activity and ATP binding. It modulates the kinase
activity of the C-terminal catalytic domain. Most Jaks
are expressed in a wide variety of tissues, except for
Jak3, which is expressed only in hematopoietic cells.
Jaks are crucial for cytokine receptor signaling. They
are activated by autophosphorylation upon
cytokine-induced receptor aggregation, and subsequently
trigger downstream signaling events such as the
phosphorylation of signal transducers and activators of
transcription (STATs). Jaks are also involved in
regulating the surface expression of some cytokine
receptors. The Jak-STAT pathway is involved in many
biological processes including hematopoiesis,
immunoregulation, host defense, fertility, lactation,
growth, and embryogenesis.
Length = 259
Score = 35.5 bits (82), Expect = 0.050
Identities = 24/86 (27%), Positives = 39/86 (45%), Gaps = 14/86 (16%)
Query: 435 EELGSGQFGVVRRGKWR--GSIDVA-----------MMKEGTMSEDDFIEEAKVMTRLQH 481
E LG G F + +G R +D+ ++ F E A +M++L H
Sbjct: 1 EHLGQGTFTNIYKGVLRVQSDLDIVGPGQEVSVVLKVLGSDHRDSLAFFETASLMSQLSH 60
Query: 482 QNLVQLYGVCSKHRPIYIVTDTSSFR 507
++LV+LYGVC + I +V + F
Sbjct: 61 KHLVKLYGVCVRDENI-MVEEYVKFG 85
Score = 31.3 bits (71), Expect = 1.0
Identities = 12/44 (27%), Positives = 22/44 (50%), Gaps = 2/44 (4%)
Query: 2 RHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIH 45
+ G L +L R +N + ++ LD+ Q+ + YLE +H
Sbjct: 83 KFGPLDVFLHREKNNV--SLHWKLDVAKQLASALHYLEDKKLVH 124
Score = 30.9 bits (70), Expect = 1.4
Identities = 12/56 (21%), Positives = 25/56 (44%)
Query: 210 SSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPKAWYVGDMSRQ 265
+ +D W++G + E+ + G+ P L ++E Q L P + ++ Q
Sbjct: 184 TIAADKWSFGTTLLEICSNGEEPLSTLSSSEKERFYQDQHRLPMPDCAELANLINQ 239
>gnl|CDD|198250 cd10387, SH2_SOCS6, Src homology 2 (SH2) domain found in
suppressor of cytokine signaling (SOCS) proteins. SH2
domain found in SOCS proteins. SOCS was first recognized
as a group of cytokine-inducible SH2 (CIS) domain
proteins comprising eight family members in human (CIS
and SOCS1-SOCS7). In addition to the SH2 domain, SOCS
proteins have a variable N-terminal domain and a
conserved SOCS box in the C-terminal domain. SOCS
proteins bind to a substrate via their SH2 domain. The
prototypical members, CIS and SOCS1-SOCS3, have been
shown to regulate growth hormone signaling in vitro and
in a classic negative feedback response compete for
binding at phosphotyrosine sites in JAK kinase and
receptor pathways to displace effector proteins and
target bound receptors for proteasomal degradation. Loss
of SOCS activity results in excessive cytokine signaling
associated with a variety of hematopoietic, autoimmune,
and inflammatory diseases and certain cancers. Members
(SOCS4-SOCS7) were identified by their conserved SOCS
box, an adapter motif of 3 helices that associates
substrate binding domains, such as the SOCS SH2 domain,
ankryin, and WD40 with ubiquitin ligase components.
These show limited cytokine induction. In general SH2
domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 100
Score = 33.3 bits (76), Expect = 0.051
Identities = 20/54 (37%), Positives = 28/54 (51%), Gaps = 6/54 (11%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSSTKGLYTLSL----YTKVPHPHVKH 306
WY G ++R AE L +G F+VR+SS Y LSL + K H ++H
Sbjct: 12 WYWGPITRWEAEGKLANV-PDGSFLVRDSSDD-RYLLSLSFRSHGKTLHTRIEH 63
>gnl|CDD|212861 cd11928, SH3_SH3RF3_1, First Src Homology 3 domain of SH3 domain
containing ring finger 3, an E3 ubiquitin-protein
ligase. SH3RF3 is also called POSH2 (Plenty of SH3s 2)
or SH3MD4 (SH3 multiple domains protein 4). It is a
scaffold protein with E3 ubiquitin-protein ligase
activity. It was identified in the screen for
interacting partners of p21-activated kinase 2 (PAK2).
It may play a role in regulating JNK mediated apoptosis
in certain conditions. It also interacts with GTP-loaded
Rac1. SH3RF3 is highly homologous to SH3RF1; it also
contains an N-terminal RING finger domain and four SH3
domains. This model represents the first SH3 domain,
located at the N-terminal half, of SH3RF3. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 32.2 bits (73), Expect = 0.053
Identities = 16/50 (32%), Positives = 28/50 (56%), Gaps = 1/50 (2%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
ALY ++ E GDL KG + E+W+ + NG G++P++Y++
Sbjct: 5 ALYSYEGKEPGDLKFNKGDIIILRRKVDENWYH-GELNGCHGFLPASYIQ 53
>gnl|CDD|212860 cd11927, SH3_SH3RF1_1, First Src Homology 3 domain of SH3 domain
containing ring finger protein 1, an E3
ubiquitin-protein ligase. SH3RF1 is also called POSH
(Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein
2). It is a scaffold protein that acts as an E3
ubiquitin-protein ligase. It plays a role in calcium
homeostasis through the control of the ubiquitin domain
protein Herp. It may also have a role in regulating
death receptor mediated and JNK mediated apoptosis.
SH3RF1 also enhances the ubiquitination of ROMK1
potassium channel resulting in its increased
endocytosis. It contains an N-terminal RING finger
domain and four SH3 domains. This model represents the
first SH3 domain, located at the N-terminal half, of
SH3RF1. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 31.8 bits (72), Expect = 0.060
Identities = 17/50 (34%), Positives = 27/50 (54%), Gaps = 1/50 (2%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
ALY ++ E GDL KG + E+W+ + NG G+ P+N+V+
Sbjct: 5 ALYNYEGKEPGDLKFSKGDIIILRRQVDENWYH-GEVNGIHGFFPTNFVQ 53
>gnl|CDD|143371 cd07866, STKc_BUR1, Catalytic domain of the Serine/Threonine
Kinase, Fungal Cyclin-Dependent protein Kinase Bypass
UAS Requirement 1 and similar proteins.
Serine/Threonine Kinases (STKs), Bypass UAS Requirement
1 (BUR1) subfamily, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
BUR1 subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. CDKs belong to a large family of STKs that are
regulated by their cognate cyclins. Together, they are
involved in the control of cell-cycle progression,
transcription, and neuronal function. BUR1, also called
SGV1, is a yeast Cyclin-Dependent protein Kinase (CDK)
that is functionally equivalent to mammalian CDK9. It
associates with the cyclin BUR2. BUR genes were
orginally identified in a genetic screen as factors
involved in general transcription. The BUR1/BUR2 complex
phosphorylates the C-terminal domain of RNA polymerase
II. In addition, this complex regulates histone
modification by phosporylating Rad6 and mediating the
association of the Paf1 complex with chromatin.
Length = 311
Score = 35.0 bits (81), Expect = 0.067
Identities = 19/61 (31%), Positives = 33/61 (54%), Gaps = 6/61 (9%)
Query: 433 LLEELGSGQFGVVRRGKWRGSIDVAMMKEGTM--SEDDF----IEEAKVMTRLQHQNLVQ 486
+L +LG G FG V + + + V +K+ M +D F + E K++ +L+H N+V
Sbjct: 12 ILGKLGEGTFGEVYKARQIKTGRVVALKKILMHNEKDGFPITALREIKILKKLKHPNVVP 71
Query: 487 L 487
L
Sbjct: 72 L 72
>gnl|CDD|213010 cd12077, SH3_Tks5_2, Second Src homology 3 domain of Tyrosine
kinase substrate with five SH3 domains. Tks5, also
called SH3 and PX domain-containing protein 2A
(SH3PXD2A) or Five SH (FISH), is a scaffolding protein
and Src substrate that is localized in podosomes, which
are electron-dense structures found in Src-transformed
fibroblasts, osteoclasts, macrophages, and some invasive
cancer cells. It binds and regulates some members of the
ADAMs family of transmembrane metalloproteases, which
function as sheddases and mediators of cell and matrix
interactions. It is required for podosome formation,
degradation of the extracellular matrix, and cancer cell
invasion. Tks5 contains an N-terminal Phox homology (PX)
domain and five SH3 domains. This model characterizes
the second SH3 domain of Tks5. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 54
Score = 31.9 bits (72), Expect = 0.068
Identities = 15/52 (28%), Positives = 28/52 (53%), Gaps = 1/52 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
V + P+ + ++ EKG EV+ E WW ++ G G+ P++Y+K+
Sbjct: 4 VTVQPYTSQGKDEIGFEKGVTVEVIQKNLEGWWYIR-YLGKEGWAPASYLKK 54
>gnl|CDD|212951 cd12018, SH3_Tks4_4, Fourth (C-terminal) Src homology 3 domain of
Tyrosine kinase substrate with four SH3 domains. Tks4,
also called SH3 and PX domain-containing protein 2B
(SH3PXD2B) or HOFI, is a Src substrate and scaffolding
protein that plays an important role in the formation of
podosomes and invadopodia, the dynamic actin-rich
structures that are related to cell migration and cancer
cell invasion. It is required in the formation of
functional podosomes, EGF-induced membrane ruffling, and
lamellipodia generation. It plays an important role in
cellular attachment and cell spreading. Tks4 is
essential for the localization of MT1-MMP (membrane-type
1 matrix metalloproteinase) to invadopodia. It contains
an N-terminal Phox homology (PX) domain and four SH3
domains. This model characterizes the fourth
(C-terminal) SH3 domain of Tks4. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 56
Score = 31.8 bits (72), Expect = 0.068
Identities = 14/41 (34%), Positives = 23/41 (56%), Gaps = 3/41 (7%)
Query: 143 SLEKGAEYEVMDDTQEHWWKVKDKNGSV---GYIPSNYVKE 180
S ++G +EV + WW K +G G+IPSNY+++
Sbjct: 16 SFKEGTVFEVREKNSSGWWFCKVLSGGPVWEGWIPSNYLRK 56
>gnl|CDD|212761 cd11827, SH3_MyoIe_If_like, Src homology 3 domain of Myosins Ie,
If, and similar proteins. Myosins Ie (MyoIe) and If
(MyoIf) are nonmuscle, unconventional, long tailed,
class I myosins containing an N-terminal motor domain
and a myosin tail with TH1, TH2, and SH3 domains. MyoIe
interacts with the endocytic proteins, dynamin and
synaptojanin-1, through its SH3 domain; it may play a
role in clathrin-dependent endocytosis. In the kidney,
MyoIe is critical for podocyte function and normal
glomerular filtration. Mutations in MyoIe is associated
with focal segmental glomerulosclerosis, a disease
characterized by massive proteinuria and progression to
end-stage kidney disease. MyoIf is predominantly
expressed in the immune system; it plays a role in
immune cell motility and innate immunity. Mutations in
MyoIf may be associated with the loss of hearing. The
MyoIf gene has also been found to be fused to the MLL
(Mixed lineage leukemia) gene in infant acute myeloid
leukemias (AML). SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 31.6 bits (72), Expect = 0.073
Identities = 16/51 (31%), Positives = 27/51 (52%), Gaps = 1/51 (1%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
ALY + A + +LS +G E++ + WW + + G G P NYV++
Sbjct: 4 ALYAYDAQDTDELSFNEGDIIEILKEDPSGWWTGRLR-GKEGLFPGNYVEK 53
>gnl|CDD|212796 cd11862, SH3_MPP, Src Homology 3 domain of Membrane Protein,
Palmitoylated (or MAGUK p55 subfamily member) proteins.
The MPP/p55 subfamily of MAGUK (membrane-associated
guanylate kinase) proteins includes at least eight
vertebrate members (MPP1-7 and CASK), four Drosophila
proteins (Stardust, Varicose, CASK and Skiff), and other
similar proteins; they all contain one each of the core
of three domains characteristic of MAGUK proteins: PDZ,
SH3, and guanylate kinase (GuK). In addition, most
members except for MPP1 contain N-terminal L27 domains
and some also contain a Hook (Protein 4.1 Binding) motif
in between the SH3 and GuK domains. CASK has an
additional calmodulin-dependent kinase (CaMK)-like
domain at the N-terminus. Members of this subfamily are
scaffolding proteins that play important roles in
regulating and establishing cell polarity, cell
adhesion, and synaptic targeting and transmission, among
others. The GuK domain in MAGUK proteins is
enzymatically inactive; instead, the domain mediates
protein-protein interactions and associates
intramolecularly with the SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 61
Score = 31.8 bits (73), Expect = 0.081
Identities = 17/41 (41%), Positives = 23/41 (56%), Gaps = 4/41 (9%)
Query: 138 EGGDLSLEKGAEYEVMDDTQEHWW---KVKDKNGSVGYIPS 175
E G LS +KG ++++ +WW KV D NG G IPS
Sbjct: 20 EAG-LSFKKGDILQIVNQDDPNWWQARKVGDPNGRAGLIPS 59
>gnl|CDD|173736 cd07832, STKc_CCRK, Catalytic domain of the Serine/Threonine
Kinase, Cell Cycle-Related Kinase. Serine/Threonine
Kinases (STKs), Cell Cycle-Related Kinase (CCRK) p42
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
CCRK subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. CCRK was previously called p42. It is a
Cyclin-Dependent Kinase (CDK)-Activating Kinase (CAK)
which is essential for the activation of CDK2. It is
indispensable for cell growth and has been implicated in
the progression of glioblastoma multiforme. In the
heart, a splice variant of CCRK with a different
C-terminal half is expressed, this variant promotes
cardiac cell growth and survival and is significantly
down-regulated during the development of heart failure.
Length = 286
Score = 34.6 bits (80), Expect = 0.087
Identities = 16/66 (24%), Positives = 28/66 (42%), Gaps = 10/66 (15%)
Query: 433 LLEELGSGQFGVVRRGKWRGSIDVAMMK--------EGTMSEDDFIEEAKVMTRLQHQNL 484
+L +G G G+V + K R + + +K G + + E K + QH +
Sbjct: 4 ILGRIGEGAHGIVFKAKDRETGETVALKKVALRRLEGGI--PNQALREIKALQACQHPYV 61
Query: 485 VQLYGV 490
V+L V
Sbjct: 62 VKLLDV 67
>gnl|CDD|212808 cd11875, SH3_CD2AP-like_3, Third Src Homology 3 domain (SH3C) of
CD2-associated protein and similar proteins. This
subfamily is composed of the third SH3 domain (SH3C) of
CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and
similar domains. CD2AP and CIN85 are adaptor proteins
that bind to protein partners and assemble complexes
that have been implicated in T cell activation, kidney
function, and apoptosis of neuronal cells. They also
associate with endocytic proteins, actin cytoskeleton
components, and other adaptor proteins involved in
receptor tyrosine kinase (RTK) signaling. CD2AP and the
main isoform of CIN85 contain three SH3 domains, a
proline-rich region, and a C-terminal coiled-coil
domain. All of these domains enable CD2AP and CIN85 to
bind various protein partners and assemble complexes
that have been implicated in many different functions.
SH3C of both proteins have been shown to bind to
ubiquitin. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 31.6 bits (72), Expect = 0.093
Identities = 15/53 (28%), Positives = 26/53 (49%), Gaps = 3/53 (5%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEH--WWKVKDKNGSVGYIPSNYVKE 180
L+ ++A +L+L +G ++ E WWK + NG G P N+V+
Sbjct: 4 VLFDYEAENEDELTLREGDIVTILSKDCEDKGWWK-GELNGKRGVFPDNFVEP 55
>gnl|CDD|198252 cd10389, SH2_SHB, Src homology 2 domain found in SH2
domain-containing adapter protein B (SHB). SHB
functions in generating signaling compounds in response
to tyrosine kinase activation. SHB contains proline-rich
motifs, a phosphotyrosine binding (PTB) domain, tyrosine
phosphorylation sites, and a SH2 domain. SHB mediates
certain aspects of platelet-derived growth factor (PDGF)
receptor-, fibroblast growth factor (FGF) receptor-,
neural growth factor (NGF) receptor TRKA-, T cell
receptor-, interleukin-2 (IL-2) receptor- and focal
adhesion kinase- (FAK) signaling. SRC-like FYN-Related
Kinase FRK/RAK (also named BSK/IYK or GTK) and SHB
regulate apoptosis, proliferation and differentiation.
SHB promotes apoptosis and is also required for proper
mitogenicity, spreading and tubular morphogenesis in
endothelial cells. SHB also plays a role in preventing
early cavitation of embryoid bodies and reduces
differentiation to cells expressing albumin, amylase,
insulin and glucagon. SHB is a multifunctional protein
that has difference responses in different cells under
various conditions. In general SH2 domains are involved
in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 97
Score = 32.4 bits (73), Expect = 0.10
Identities = 26/64 (40%), Positives = 36/64 (56%), Gaps = 8/64 (12%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSST-KGLYTLSLYTKVPHPHVK------HYHI 309
WY G +SR AE++L+ KE ++VRNS T K Y+LSL + H+K Y +
Sbjct: 3 WYHGAISRGDAENLLRL-CKECSYLVRNSQTSKHDYSLSLKSNQGFMHMKLAKTKEKYVL 61
Query: 310 KQNS 313
QNS
Sbjct: 62 GQNS 65
>gnl|CDD|212798 cd11864, SH3_PEX13_eumet, Src Homology 3 domain of eumetazoan
Peroxisomal biogenesis factor 13. PEX13 is a peroxin
and is required for protein import into the peroxisomal
matrix and membrane. It is an integral membrane protein
that is essential for the localization of PEX14 and the
import of proteins containing the peroxisome matrix
targeting signals, PTS1 and PTS2. Mutations of the PEX13
gene in humans lead to a wide range of peroxisome
biogenesis disorders (PBDs), the most severe of which is
known as Zellweger syndrome (ZS), a severe multisystem
disorder characterized by hypotonia, psychomotor
retardation, and neuronal migration defects. PEX13
contains two transmembrane regions and a C-terminal SH3
domain. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 58
Score = 31.4 bits (72), Expect = 0.11
Identities = 16/57 (28%), Positives = 23/57 (40%), Gaps = 4/57 (7%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVM-DDTQEH---WWKVKDKNGSVGYIPSNYVK 179
V A Y F A +LS G + + + Q W +G +P+NYVK
Sbjct: 1 VARAEYDFVAESEDELSFRAGDKLRLAPKELQPRVRGWLLATVDGQKIGLVPANYVK 57
>gnl|CDD|212691 cd11757, SH3_SH3BP4, Src Homology 3 domain of SH3 domain-binding
protein 4. SH3 domain-binding protein 4 (SH3BP4) is
also called transferrin receptor trafficking protein
(TTP). SH3BP4 is an endocytic accessory protein that
interacts with endocytic proteins including clathrin and
dynamin, and regulates the internalization of the
transferrin receptor (TfR). SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 52
Score = 31.1 bits (70), Expect = 0.11
Identities = 17/52 (32%), Positives = 25/52 (48%), Gaps = 1/52 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
VVA+ + L KG V+D + WW + +GYIPS+YV+
Sbjct: 2 VVAIKDYCPTNFTTLKFSKGDHLYVLDTSGGEWWYAHN-TTEMGYIPSSYVQ 52
>gnl|CDD|212770 cd11836, SH3_Intersectin_1, First Src homology 3 domain (or SH3A)
of Intersectin. Intersectins (ITSNs) are adaptor
proteins that function in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction.
They are essential for initiating clathrin-coated pit
formation. They bind to many proteins through their
multidomain structure and facilitate the assembly of
multimeric complexes. Vertebrates contain two ITSN
proteins, ITSN1 and ITSN2, which exist in alternatively
spliced short and long isoforms. The short isoforms
contain two Eps15 homology domains (EH1 and EH2), a
coiled-coil region and five SH3 domains (SH3A-E), while
the long isoforms, in addition, contain RhoGEF (also
called Dbl-homologous or DH), Pleckstrin homology (PH)
and C2 domains. ITSN1 and ITSN2 are both widely
expressed, with variations depending on tissue type and
stage of development. The first SH3 domain (or SH3A) of
ITSN1 has been shown to bind many proteins including
Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP,
and CdGAP, among others. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 31.2 bits (71), Expect = 0.13
Identities = 18/53 (33%), Positives = 26/53 (49%), Gaps = 2/53 (3%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEV-MDDTQEHWWKVKDKNGSVGYIPSNYVKEK 181
ALY F+A ++S + G +V E W + G G+ P+NYV EK
Sbjct: 4 ALYAFEARNPDEISFQPGDIIQVDESQVAEPGWLAGELKGKTGWFPANYV-EK 55
>gnl|CDD|173738 cd07835, STKc_CDK1_like, Catalytic domain of Cyclin-Dependent
protein Kinase 1-like Serine/Threonine Kinases.
Serine/Threonine Kinases (STKs), Cyclin-Dependent
protein Kinase 1 (CDK1)-like subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK1 subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. CDKs belong to a
large family of STKs that are regulated by their cognate
cyclins. Together, they are involved in the control of
cell-cycle progression, transcription, and neuronal
function. This subfamily is composed of CDK1 from higher
eukaryotes, plants, and yeasts, as well as CDK2 and
CDK3. CDK1 is also called Cell division control protein
2 (Cdc2) or p34 protein kinase, and is regulated by
cyclins A, B, and E. The CDK1/cyclin A complex controls
G2 phase entry and progression while the CDK1/cyclin B
complex is critical for G2 to M phase transition. CDK2
is regulated by cyclin E or cyclin A. Upon activation by
cyclin E, it phosphorylates the retinoblastoma (pRb)
protein which activates E2F mediated transcription and
allows cells to move into S phase. The CDK2/cyclin A
complex plays a role in regulating DNA replication.
Studies in knockout mice revealed that CDK1 can
compensate for the loss of the cdk2 gene as it can also
bind cyclin E and drive G1 to S phase transition. CDK3
is regulated by cyclin C and it phosphorylates pRB
specifically during the G0/G1 transition. This
phosphorylation is required for cells to exit G0
efficiently and enter the G1 phase.
Length = 283
Score = 34.2 bits (79), Expect = 0.13
Identities = 23/74 (31%), Positives = 39/74 (52%), Gaps = 8/74 (10%)
Query: 434 LEELGSGQFGVVRRGKWR--GSIDVAMMKEGTMSEDD-----FIEEAKVMTRLQHQNLVQ 486
+E++G G +GVV + + + G I VA+ K +ED+ I E ++ L H N+V+
Sbjct: 4 VEKIGEGTYGVVYKARDKLTGEI-VALKKIRLETEDEGVPSTAIREISLLKELNHPNIVR 62
Query: 487 LYGVCSKHRPIYIV 500
L V +Y+V
Sbjct: 63 LLDVVHSENKLYLV 76
>gnl|CDD|212903 cd11970, SH3_PLCgamma1, Src homology 3 domain of Phospholipase C
(PLC) gamma 1. PLCgamma1 is widely expressed and is
essential in growth and development. It is activated by
the TrkA receptor tyrosine kinase and functions as a key
regulator of cell differentiation. It is also the
predominant PLCgamma in T cells and is required for T
cell and NK cell function. PLCs catalyze the hydrolysis
of phosphatidylinositol (4,5)-bisphosphate
[PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and
diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium
signaling cascade while DAG functions as an activator of
PKC. PLCgamma contains a Pleckstrin homology (PH) domain
followed by an elongation factor (EF) domain, two
catalytic regions of PLC domains that flank two tandem
SH2 domains, followed by a SH3 domain and C2 domain. The
SH3 domain of PLCgamma1 directly interacts with
dynamin-1 and can serve as a guanine nucleotide exchange
factor (GEF). It also interacts with Cbl, inhibiting its
phosphorylation and activity. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 60
Score = 31.1 bits (70), Expect = 0.16
Identities = 16/53 (30%), Positives = 27/53 (50%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
V AL+ +KA +L+ K A + ++ + WW+ + PSNYV+E
Sbjct: 6 VKALFDYKAQREDELTFTKNAIIQNVEKQEGGWWRGDYGGKKQLWFPSNYVEE 58
>gnl|CDD|173754 cd07865, STKc_CDK9, Catalytic domain of the Serine/Threonine
Kinase, Cyclin-Dependent protein Kinase 9.
Serine/Threonine Kinases (STKs), Cyclin-Dependent
protein Kinase 9 (CDK9) subfamily, catalytic (c) domain.
STKs catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The CDK9 subfamily is part of a larger
superfamily that includes the catalytic domains of other
protein STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. CDKs belong to a large family
of STKs that are regulated by their cognate cyclins.
Together, they are involved in the control of cell-cycle
progression, transcription, and neuronal function. CDK9
together with a cyclin partner (cyclin T1, T2a, T2b, or
K) is the main component of distinct positive
transcription elongation factors (P-TEFb), which
function as Ser2 C-terminal domain kinases of RNA
polymerase II. P-TEFb participates in multiple steps of
gene expression including transcription elongation, mRNA
synthesis, processing, export, and translation. It also
plays a role in mediating cytokine induced transcription
networks such as IL6-induced STAT3 signaling. In
addition, the CDK9/cyclin T2a complex promotes muscle
differentiation and enhances the function of some
myogenic regulatory factors.
Length = 310
Score = 33.9 bits (78), Expect = 0.16
Identities = 17/66 (25%), Positives = 35/66 (53%), Gaps = 6/66 (9%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTM--SEDDF----IEEAKVMTRLQHQNLVQL 487
L ++G G FG V + + + + + +K+ M ++ F + E K++ L+H+N+V L
Sbjct: 17 LAKIGQGTFGEVFKARHKKTKQIVALKKVLMENEKEGFPITALREIKILQLLKHENVVNL 76
Query: 488 YGVCSK 493
+C
Sbjct: 77 IEICRT 82
>gnl|CDD|212922 cd11989, SH3_Intersectin1_2, Second Src homology 3 domain (or SH3B)
of Intersectin-1. Intersectin-1 (ITSN1) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN1 localizes in membranous organelles, CCPs, the
Golgi complex, and may be involved in the cell membrane
trafficking system. It exists in alternatively spliced
short and long isoforms. The short isoform contains two
Eps15 homology domains (EH1 and EH2), a coiled-coil
region and five SH3 domains (SH3A-E), while the long
isoform, in addition, contains RhoGEF (also called
Dbl-homologous or DH), Pleckstrin homology (PH) and C2
domains. The second SH3 domain (or SH3B) of ITSN1 has
been shown to bind WNK and CdGAP. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 52
Score = 30.8 bits (69), Expect = 0.17
Identities = 17/50 (34%), Positives = 27/50 (54%), Gaps = 2/50 (4%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
ALYP++A + L+ K V++ Q+ WW + G G+ P +YVK
Sbjct: 4 ALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWW-FGEVQGQKGWFPKSYVK 51
>gnl|CDD|212915 cd11982, SH3_Shank1, Src homology 3 domain of SH3 and multiple
ankyrin repeat domains protein 1. Shank1, also called
SSTRIP (Somatostatin receptor-interacting protein), is a
brain-specific protein that plays a role in the
construction of postsynaptic density (PSD) and the
maturation of dendritic spines. Mice deficient in Shank1
show altered PSD composition, thinner PSDs, smaller
dendritic spines, and weaker basal synaptic
transmission, although synaptic plasticity is normal.
They show increased anxiety and impaired fear memory,
but also show better spatial learning. Shank proteins
carry scaffolding functions through multiple sites of
protein-protein interaction in its domain architecture,
including ankyrin (ANK) repeats, a long proline rich
region, as well as SH3, PDZ, and SAM domains. The SH3
domain of Shank binds GRIP, a scaffold protein that
binds AMPA receptors and Eph receptors/ligands. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 52
Score = 30.8 bits (69), Expect = 0.17
Identities = 16/53 (30%), Positives = 33/53 (62%), Gaps = 1/53 (1%)
Query: 126 KVVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
+ +A+ P+++ G++SL KG + +V+ + +W+ + K G VG+ PS+ V
Sbjct: 1 RTFMAVKPYQSQAEGEISLSKGEKIKVLSVGEGGFWEGQVK-GRVGWFPSDCV 52
>gnl|CDD|132975 cd06644, STKc_STK10_LOK, Catalytic domain of the Protein
Serine/Threonine Kinase, STK10 or Lymphocyte-oriented
kinase. Serine/threonine kinases (STKs), STK10
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
STK10 subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. Other names for STK10 include
lymphocyte-oriented kinase (LOK) and Xenopus polo-like
kinase kinase 1 (xPlkk1). STK10 is highly expressed in
lymphocytes and is responsible in regulating leukocyte
function associated antigen (LFA-1)-mediated lymphocyte
adhesion. It plays a role in regulating the CD28
responsive element in T cells, and may also function as
a regulator of polo-like kinase 1 (Plk1), a protein
which is overexpressed in multiple tumor types.
Length = 292
Score = 33.9 bits (77), Expect = 0.18
Identities = 24/75 (32%), Positives = 43/75 (57%), Gaps = 7/75 (9%)
Query: 421 HDKWEIDPAELM-LLEELGSGQFGVVRRGKWR--GSIDVAMMKEGTMSED---DFIEEAK 474
H + ++DP E+ ++ ELG G FG V + K + G++ A + E T SE+ D++ E +
Sbjct: 3 HVRRDLDPNEVWEIIGELGDGAFGKVYKAKNKETGALAAAKVIE-TKSEEELEDYMVEIE 61
Query: 475 VMTRLQHQNLVQLYG 489
++ H +V+L G
Sbjct: 62 ILATCNHPYIVKLLG 76
>gnl|CDD|212873 cd11940, SH3_ARHGEF5_19, Src homology 3 domain of the Rho guanine
nucleotide exchange factors ARHGEF5 and ARHGEF19.
ARHGEF5, also called ephexin-3 or TIM (Transforming
immortalized mammary oncogene), is a potent activator of
RhoA and it plays roles in regulating cell shape,
adhesion, and migration. It binds to the SH3 domain of
Src and is involved in regulating Src-induced podosome
formation. ARHGEF19, also called ephexin-2 or WGEF
(weak-similarity GEF), is highly expressed in the
intestine, liver, heart and kidney. It activates RhoA,
Cdc42, and Rac 1, and has been shown to activate RhoA in
the Wnt-PCP (planar cell polarity) pathway. It is
involved in the regulation of cell polarity and
cytoskeletal reorganization. ARHGEF5 and ARHGEF19
contain RhoGEF (also called Dbl-homologous or DH),
Pleckstrin Homology (PH), and SH3 domains. The SH3
domains of ARHGEFs play an autoinhibitory role through
intramolecular interactions with a proline-rich region
N-terminal to the DH domain. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 30.5 bits (69), Expect = 0.18
Identities = 15/48 (31%), Positives = 27/48 (56%), Gaps = 1/48 (2%)
Query: 134 FKAIEGGDLSLEKGAEYEVMDDTQEHWWK-VKDKNGSVGYIPSNYVKE 180
+KA E +L+LEK V + + W + V+ +G G+ P ++V+E
Sbjct: 8 YKAQENDELTLEKADIIMVRQQSSDGWLEGVRLSDGERGWFPQSHVEE 55
>gnl|CDD|234501 TIGR04211, SH3_and_anchor, SH3 domain protein. Members of this
protein family have a signal peptide, a strongly
conserved SH3 domain, a variable region, and then a
C-terminal hydrophobic transmembrane alpha helix region.
Length = 198
Score = 33.1 bits (76), Expect = 0.19
Identities = 10/36 (27%), Positives = 21/36 (58%)
Query: 143 SLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
SL+ G EV++ + + + +V+ G G++ S Y+
Sbjct: 23 SLKSGTPVEVLERSDDGYSRVRTPKGREGWVLSRYL 58
>gnl|CDD|173731 cd06627, STKc_Cdc7_like, Catalytic domain of Cell division control
protein 7-like Protein Serine/Threonine Kinases.
Serine/threonine kinases (STKs), (Cdc7)-like subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Cdc7-like subfamily
is part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. Members of this subfamily include
Schizosaccharomyces pombe Cdc7, Saccharomyces cerevisiae
Cdc15, Arabidopsis thaliana mitogen-activated protein
kinase (MAPK) kinase kinase (MAPKKK) epsilon, and
related proteins. MAPKKKs phosphorylate and activate
MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn
phosphorylate and activate MAPKs during signaling
cascades that are important in mediating cellular
responses to extracellular signals. Fission yeast Cdc7
is essential for cell division by playing a key role in
the initiation of septum formation and cytokinesis.
Budding yeast Cdc15 functions to coordinate mitotic exit
with cytokinesis. Arabidopsis MAPKKK epsilon is required
for pollen development in the plasma membrane.
Length = 254
Score = 33.4 bits (77), Expect = 0.19
Identities = 20/83 (24%), Positives = 35/83 (42%), Gaps = 16/83 (19%)
Query: 430 ELMLLEELGSGQFGVVRRG-----------KWRGSIDVAMMKEGTMSEDDFIEEAKVMTR 478
L + +G G FGVV +G K I + +KE + ++E ++
Sbjct: 1 NYQLGDLIGRGAFGVVYKGLNLETGDFVAIK---QISLEKIKEEALK--SIMQEIDLLKN 55
Query: 479 LQHQNLVQLYGVCSKHRPIYIVT 501
L+H N+V+ G +YI+
Sbjct: 56 LKHPNIVKYIGSIETSDSLYIIL 78
Score = 28.4 bits (64), Expect = 8.0
Identities = 11/28 (39%), Positives = 16/28 (57%), Gaps = 1/28 (3%)
Query: 210 SSKSDVWAYGVLMWEVFTCGKMPYGRLK 237
S+ SD+W+ G + E+ T G PY L
Sbjct: 177 STASDIWSLGCTVIELLT-GNPPYYDLN 203
>gnl|CDD|198263 cd10400, SH2_SAP1a, Src homology 2 (SH2) domain found in
SLAM-associated protein (SAP) 1a. The X-linked
lymphoproliferative syndrome (XLP) gene encodes SAP
(also called SH2D1A/DSHP) a protein that consists of a 5
residue N-terminus, a single SH2 domain, and a short 25
residue C-terminal tail. XLP is characterized by an
extreme sensitivity to Epstein-Barr virus. Both T and
natural killer (NK) cell dysfunctions have been seen in
XLP patients. SAP binds the cytoplasmic tail of
Signaling lymphocytic activation molecule (SLAM), 2B4,
Ly-9, and CD84. SAP is believed to function as a
signaling inhibitor, by blocking or regulating binding
of other signaling proteins. SAP and the SAP-like
protein EAT-2 recognize the sequence motif TIpYXX[VI],
which is found in the cytoplasmic domains of a
restricted number of T, B, and NK cell surface receptors
and are proposed to be natural inhibitors or regulators
of the physiological role of a small family of receptors
on the surface of these cells. In general SH2 domains
are involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 103
Score = 31.7 bits (72), Expect = 0.19
Identities = 16/59 (27%), Positives = 30/59 (50%), Gaps = 4/59 (6%)
Query: 258 YVGDMSRQRAESILKQEDKEGCFVVRNSST-KGLYTLSLYTKVPHPHVKHYHIKQNSRG 315
Y G +SR+ E +L +G +++R+S + G+Y L + + +V Y + Q G
Sbjct: 6 YHGKISRETGEKLLLAAGLDGSYLLRDSESVPGVYCLCV---LYKGYVYTYRVSQTETG 61
>gnl|CDD|198268 cd10405, SH2_Vav1, Src homology 2 (SH2) domain found in the Vav1
proteins. Proto-oncogene vav is a member of the Dbl
family of guanine nucleotide exchange factors (GEF) for
the Rho family of GTP binding proteins. All vavs are
activated by tyrosine phosphorylation leading to their
activation. There are three Vav mammalian family
members: Vav1 which is expressed in the hematopoietic
system, and Vav2 and Vav3 are more ubiquitously
expressed. Vav1 plays a role in T-cell and B-cell
development and activation. It has been identified as
the specific binding partner of Nef proteins from HIV-1,
resulting in morphological changes, cytoskeletal
rearrangements, and the JNK/SAPK signaling cascade,
leading to increased levels of viral transcription and
replication. Vav1 has been shown to interact with Ku70,
PLCG1, Lymphocyte cytosolic protein 2, Janus kinase 2,
SIAH2, S100B, Abl gene, ARHGDIB, SHB, PIK3R1, PRKCQ,
Grb2, MAPK1, Syk, Linker of activated T cells, Cbl gene
and EZH2. Vav proteins are involved in several processes
that require cytoskeletal reorganization, such as the
formation of the immunological synapse (IS),
phagocytosis, platelet aggregation, spreading, and
transformation. Vavs function as guanine nucleotide
exchange factors (GEFs) for the Rho/Rac family of
GTPases. Vav family members have several conserved
motifs/domains including: a leucine-rich region, a
leucine-zipper, a calponin homology (CH) domain, an
acidic domain, a Dbl-homology (DH) domain, a pleckstrin
homology (PH) domain, a cysteine-rich domain, 2 SH3
domains, a proline-rich region, and a SH2 domain. Vavs
are the only known Rho GEFs that have both the DH/PH
motifs and SH2/SH3 domains in the same protein. The
leucine-rich helix-loop-helix (HLH) domain is thought to
be involved in protein heterodimerization with other HLH
proteins and it may function as a negative regulator by
forming inactive heterodimers. The CH domain is usually
involved in the association with filamentous actin, but
in Vav it controls NFAT stimulation, Ca2+ mobilization,
and its transforming activity. Acidic domains are
involved in protein-protein interactions and contain
regulatory tyrosines. The DH domain is a GDP-GTP
exchange factor on Rho/Rac GTPases. The PH domain in
involved in interactions with GTP-binding proteins,
lipids and/or phosphorylated serine/threonine residues.
The SH3 domain is involved in localization of proteins
to specific sites within the cell interacting with
protein with proline-rich sequences. The SH2 domain
mediates a high affinity interaction with tyrosine
phosphorylated proteins. In general SH2 domains are
involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 103
Score = 31.9 bits (72), Expect = 0.19
Identities = 23/76 (30%), Positives = 35/76 (46%), Gaps = 6/76 (7%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYHIKQNSRG 315
WY G M R AESIL +G ++VR + +S+ V VKH I + G
Sbjct: 7 WYAGPMERAGAESILANR-SDGTYLVRQRVKDAAEFAISIKYNV---EVKHIKI-MTAEG 61
Query: 316 EFFLSEKHCCHSIPEV 331
+ ++EK + E+
Sbjct: 62 LYRITEKKAFRGLTEL 77
>gnl|CDD|212926 cd11993, SH3_Intersectin1_4, Fourth Src homology 3 domain (or SH3D)
of Intersectin-1. Intersectin-1 (ITSN1) is an adaptor
protein that functions in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction. It
plays a role in clathrin-coated pit (CCP) formation. It
binds to many proteins through its multidomain structure
and facilitate the assembly of multimeric complexes.
ITSN1 localizes in membranous organelles, CCPs, the
Golgi complex, and may be involved in the cell membrane
trafficking system. It exists in alternatively spliced
short and long isoforms. The short isoform contains two
Eps15 homology domains (EH1 and EH2), a coiled-coil
region and five SH3 domains (SH3A-E), while the long
isoform, in addition, contains RhoGEF (also called
Dbl-homologous or DH), Pleckstrin homology (PH) and C2
domains. The fourth SH3 domain (or SH3D) of ITSN1 has
been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 65
Score = 30.9 bits (69), Expect = 0.20
Identities = 14/60 (23%), Positives = 26/60 (43%), Gaps = 4/60 (6%)
Query: 124 RPKVVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW----KVKDKNGSVGYIPSNYVK 179
+P++ + + A L+L G + WW + + K +G+ P+NYVK
Sbjct: 2 KPEIAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKKRQIGWFPANYVK 61
>gnl|CDD|212905 cd11972, SH3_Abi2, Src homology 3 domain of Abl Interactor 2. Abi2
is highly expressed in the brain and eye. It regulates
actin cytoskeletal reorganization at adherens junctions
and dendritic spines, which is important in cell
morphogenesis, migration, and cognitive function. Mice
deficient with Abi2 show defects in orientation and
migration of lens fibers, neuronal migration, dendritic
spine morphology, as well as deficits in learning and
memory. Abi proteins are adaptor proteins serving as
binding partners and substrates of Abl tyrosine kinases.
They are involved in regulating actin cytoskeletal
reorganization and play important roles in
membrane-ruffling, endocytosis, cell motility, and cell
migration. Abi proteins contain a homeobox homology
domain, a proline-rich region, and a SH3 domain. The SH3
domain of Abi binds to a PxxP motif in Abl. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 61
Score = 30.7 bits (69), Expect = 0.21
Identities = 17/52 (32%), Positives = 28/52 (53%), Gaps = 1/52 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
VVA+Y + + +LS ++GA V+ + W++ NG G P NYV+
Sbjct: 5 VVAIYDYTKDKEDELSFQEGAIIYVIKKNDDGWYE-GVMNGVTGLFPGNYVE 55
>gnl|CDD|198199 cd09946, SH2_HSH2_like, Src homology 2 domain found in
hematopoietic SH2 (HSH2) protein. HSH2 is thought to
function as an adapter protein involved in tyrosine
kinase signaling. It may also be involved in regulating
cytokine signaling and cytoskeletal reorganization in
hematopoietic cells. HSH2 contains several putative
protein-binding motifs, SH3-binding proline-rich
regions, and phosphotyrosine sites, but lacks enzymatic
motifs. HSH2 was found to interact with
cytokine-regulated tyrosine kinase c-FES and an
activated Cdc42-associated tyrosine kinase ACK1. HSH2
binds c-FES through both its C-terminal region and its
N-terminal region including the SH2 domain and binds
ACK1 via its N-terminal proline-rich region. Both
kinases bound and tyrosine-phosphorylated HSH2 in
mammalian cells. In general SH2 domains are involved in
signal transduction. They typically bind pTyr-containing
ligands via two surface pockets, a pTyr and hydrophobic
binding pocket, allowing proteins with SH2 domains to
localize to tyrosine phosphorylated sites.
Length = 102
Score = 31.8 bits (72), Expect = 0.21
Identities = 20/71 (28%), Positives = 37/71 (52%), Gaps = 4/71 (5%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHIKQNSRGE 316
W+ G +SR+ AE++L+ + G F++R S + YTLS + +H+ +K G
Sbjct: 9 WFHGAISREAAENMLESQ-PLGSFLIRVSHSHVGYTLSYKAQ---SSCRHFMVKLLDDGT 64
Query: 317 FFLSEKHCCHS 327
F + + H+
Sbjct: 65 FMIPGEKVAHT 75
>gnl|CDD|173751 cd07860, STKc_CDK2_3, Catalytic domain of the Serine/Threonine
Kinases, Cyclin-Dependent protein Kinase 2 and 3.
Serine/Threonine Kinases (STKs), Cyclin-dependent
protein kinase 2 (CDK2) and CDK3 subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK2/3 subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. CDKs belong to a
large family of STKs that are regulated by their cognate
cyclins. Together, they are involved in the control of
cell-cycle progression, transcription, and neuronal
function. CDK2 is regulated by cyclin E or cyclin A.
Upon activation by cyclin E, it phosphorylates the
retinoblastoma (pRb) protein which activates E2F
mediated transcription and allows cells to move into S
phase. The CDK2/cyclin A complex plays a role in
regulating DNA replication. CDK2, together with CDK4,
also regulates embryonic cell proliferation. Despite
these important roles, mice deleted for the cdk2 gene
are viable and normal except for being sterile. This may
be due to compensation provided by CDK1 (also called
Cdc2), which can also bind cyclin E and drive the G1 to
S phase transition. CDK3 is regulated by cyclin C and it
phosphorylates pRB specifically during the G0/G1
transition. This phosphorylation is required for cells
to exit G0 efficiently and enter the G1 phase.
Length = 284
Score = 33.6 bits (77), Expect = 0.22
Identities = 21/75 (28%), Positives = 37/75 (49%), Gaps = 10/75 (13%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMK--------EGTMSEDDFIEEAKVMTRLQHQNLV 485
+E++G G +GVV + + + + +V +K EG S I E ++ L H N+V
Sbjct: 5 VEKIGEGTYGVVYKARNKLTGEVVALKKIRLDTETEGVPSTA--IREISLLKELNHPNIV 62
Query: 486 QLYGVCSKHRPIYIV 500
+L V +Y+V
Sbjct: 63 KLLDVIHTENKLYLV 77
>gnl|CDD|212724 cd11790, SH3_Amphiphysin, Src Homology 3 domain of Amphiphysin and
related domains. Amphiphysins function primarily in
endocytosis and other membrane remodeling events. They
exist in several isoforms and mammals possess two
amphiphysin proteins from distinct genes. Amphiphysin I
proteins, enriched in the brain and nervous system,
contain domains that bind clathrin, Adaptor Protein
complex 2 (AP2), dynamin, and synaptojanin. They
function in synaptic vesicle endocytosis. Human
autoantibodies to amphiphysin I hinder GABAergic
signaling and contribute to the pathogenesis of
paraneoplastic stiff-person syndrome. Some amphiphysin
II isoforms, also called Bridging integrator 1 (Bin1),
are localized in many different tissues and may function
in intracellular vesicle trafficking. In skeletal
muscle, Bin1 plays a role in the organization and
maintenance of the T-tubule network. Mutations in Bin1
are associated with autosomal recessive centronuclear
myopathy. Amphiphysins contain an N-terminal BAR domain
with an additional N-terminal amphipathic helix (an
N-BAR), a variable central domain, and a C-terminal SH3
domain. The SH3 domain of amphiphysins bind proline-rich
motifs present in binding partners such as dynamin,
synaptojanin, and nsP3. It also belongs to a subset of
SH3 domains that bind ubiquitin in a site that overlaps
with the peptide binding site. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 64
Score = 30.8 bits (70), Expect = 0.22
Identities = 15/58 (25%), Positives = 27/58 (46%), Gaps = 6/58 (10%)
Query: 128 VVALYPFKAIEGGDLSLEKG-----AEYEVMDDTQEHW-WKVKDKNGSVGYIPSNYVK 179
V A + + A + +L+ EKG ++ ++ E W VK+ G G P N+ +
Sbjct: 5 VRATHDYTAEDTDELTFEKGDVILVIPFDDPEEQDEGWLMGVKESTGCRGVFPENFTE 62
>gnl|CDD|212885 cd11952, SH3_iASPP, Src Homology 3 (SH3) domain of Inhibitor of
ASPP protein (iASPP). iASPP, also called
RelA-associated inhibitor (RAI), is an oncoprotein that
inhibits the apoptotic transactivation potential of p53.
It is upregulated in human breast cancers expressing
wild-type p53, in acute leukemias regardless of the p53
mutation status, as well as in ovarian cancer where it
is associated with poor patient outcome and
chemoresistance. iASPP is also a binding partner and
negative regulator of p65RelA, which promotes cell
proliferation and inhibits apoptosis; p65RelA has the
opposite effect on cell growth compared to the p53
family. It contains a proline-rich region, four ankyrin
(ANK) repeats, and an SH3 domain at its C-terminal half.
The SH3 domain and the ANK repeats of iASPP contribute
to the p53 binding site; they bind to the DNA binding
domain of p53. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 56
Score = 30.3 bits (68), Expect = 0.22
Identities = 18/53 (33%), Positives = 25/53 (47%), Gaps = 3/53 (5%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVM--DDTQEHWWKVKDKNGSVGYIPSNY 177
VV AL+ + A +LS ++G V+ D WW G GY+P NY
Sbjct: 2 VVYALWDYSAEFPDELSFKEGDMVTVLRKDGEGTDWWWAS-LCGREGYVPRNY 53
>gnl|CDD|212773 cd11839, SH3_Intersectin_4, Fourth Src homology 3 domain (or SH3D)
of Intersectin. Intersectins (ITSNs) are adaptor
proteins that function in exo- and endocytosis, actin
cytoskeletal reorganization, and signal transduction.
They are essential for initiating clathrin-coated pit
formation. They bind to many proteins through their
multidomain structure and facilitate the assembly of
multimeric complexes. Vertebrates contain two ITSN
proteins, ITSN1 and ITSN2, which exist in alternatively
spliced short and long isoforms. The short isoforms
contain two Eps15 homology domains (EH1 and EH2), a
coiled-coil region and five SH3 domains (SH3A-E), while
the long isoforms, in addition, contain RhoGEF (also
called Dbl-homologous or DH), Pleckstrin homology (PH)
and C2 domains. ITSN1 and ITSN2 are both widely
expressed, with variations depending on tissue type and
stage of development. The fourth SH3 domain (or SH3D) of
ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and
N-WASP. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 58
Score = 30.4 bits (69), Expect = 0.23
Identities = 19/56 (33%), Positives = 26/56 (46%), Gaps = 6/56 (10%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW----KVKDKNGSVGYIPSNYVK 179
V+A PF A LSL G V + WW + + K +G+ P+NYVK
Sbjct: 4 VIA--PFTATAENQLSLAVGQLVLVRKKSPSGWWEGELQARGKKRQIGWFPANYVK 57
>gnl|CDD|199830 cd10349, SH2_SH2D2A_SH2D7, Src homology 2 domain found in the SH2
domain containing protein 2A and 7 (SH2D2A and SH2D7).
SH2D2A and SH7 both contain a single SH2 domain. In
general SH2 domains are involved in signal transduction.
They typically bind pTyr-containing ligands via two
surface pockets, a pTyr and hydrophobic binding pocket,
allowing proteins with SH2 domains to localize to
tyrosine phosphorylated sites.
Length = 77
Score = 31.0 bits (70), Expect = 0.23
Identities = 18/72 (25%), Positives = 38/72 (52%), Gaps = 4/72 (5%)
Query: 256 AWYVGDMSRQRAESILKQEDKEGCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHIKQNSRG 315
AW+ G ++R+ AE +L+ + +GC++VR S + + LS ++ +H+ + Q G
Sbjct: 1 AWFHGFITRREAERLLEPK-PQGCYLVRFSESAVTFVLSYRSR---TCCRHFLLAQLRDG 56
Query: 316 EFFLSEKHCCHS 327
+ + H+
Sbjct: 57 RHVVLGEDSAHA 68
>gnl|CDD|212749 cd11815, SH3_Eve1_2, Second Src homology 3 domain of ADAM-binding
protein Eve-1. Eve-1, also called SH3 domain-containing
protein 19 (SH3D19) or EEN-binding protein (EBP), exists
in multiple alternatively spliced isoforms. The longest
isoform contains five SH3 domain in the C-terminal
region and seven proline-rich motifs in the N-terminal
region. It is abundantly expressed in skeletal muscle
and heart, and may be involved in regulating the
activity of ADAMs (A disintegrin and metalloproteases).
Eve-1 interacts with EEN, an endophilin involved in
endocytosis and may be the target of the MLL-EEN fusion
protein that is implicated in leukemogenesis. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 52
Score = 30.2 bits (68), Expect = 0.25
Identities = 18/51 (35%), Positives = 27/51 (52%), Gaps = 1/51 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
V L+ F A DLSL G +++ W++ K KN + G P+N+VK
Sbjct: 3 VVLHDFPAEHSDDLSLNSGEIVYLLEKIDTEWYRGKCKN-TTGIFPANHVK 52
>gnl|CDD|212892 cd11959, SH3_Cortactin, Src homology 3 domain of Cortactin.
Cortactin was originally identified as a substrate of
Src kinase. It is an actin regulatory protein that binds
to the Arp2/3 complex and stabilizes branched actin
filaments. It is involved in cellular processes that
affect cell motility, adhesion, migration, endocytosis,
and invasion. It is expressed ubiquitously except in
hematopoietic cells, where the homolog hematopoietic
lineage cell-specific 1 (HS1) is expressed instead.
Cortactin contains an N-terminal acidic domain, several
copies of a repeat domain found in cortactin and HS1, a
proline-rich region, and a C-terminal SH3 domain. The
N-terminal region interacts with the Arp2/3 complex and
F-actin, and is crucial in regulating branched actin
assembly. Cortactin also serves as a scaffold and
provides a bridge to the actin cytoskeleton for membrane
trafficking and signaling proteins that bind to its SH3
domain. Binding partners for the SH3 domain of cortactin
include dynamin2, N-WASp, MIM, FGD1, among others. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 30.1 bits (68), Expect = 0.25
Identities = 15/51 (29%), Positives = 26/51 (50%), Gaps = 1/51 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
VALY ++A + ++S + ++ E WW+ G G P+NYV+
Sbjct: 3 VALYDYQAADDDEISFDPDDIITNIEMIDEGWWRGV-CRGKYGLFPANYVE 52
>gnl|CDD|132957 cd06626, STKc_MEKK4, Catalytic domain of the Protein
Serine/Threonine Kinase, MAP/ERK kinase kinase 4.
Serine/threonine kinases (STKs), MAP/ERK kinase kinase 4
(MEKK4) subfamily, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MEKK4 subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. MEKK4 is a mitogen-activated protein kinase
(MAPK) kinase kinase (MAPKKK or MKKK or MAP3K), that
phosphorylates and activates MAPK kinases (MAPKKs or
MKKs or MAP2Ks), which in turn phosphorylate and
activate MAPKs during signaling cascades that are
important in mediating cellular responses to
extracellular signals. MEKK4 activates the c-Jun
N-terminal kinase (JNK) and p38 MAPK signaling pathways
by directly activating their respective MAPKKs,
MKK4/MKK7 and MKK3/MKK6. JNK and p38 are collectively
known as stress-activated MAPKs, as they are activated
in response to a variety of environmental stresses and
pro-inflammatory cytokines. MEKK4 also plays roles in
the re-polarization of the actin cytoskeleton in
response to osmotic stress, in the proper closure of the
neural tube, in cardiovascular development, and in
immune responses.
Length = 264
Score = 33.1 bits (76), Expect = 0.25
Identities = 19/60 (31%), Positives = 31/60 (51%), Gaps = 6/60 (10%)
Query: 437 LGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDD------FIEEAKVMTRLQHQNLVQLYGV 490
+G G FG V + ++ +KE + ++D +E KV+ L+H NLV+ YGV
Sbjct: 8 IGGGTFGKVYTAVNLDTGELMAVKEIRIQDNDPKTIKEIADEMKVLELLKHPNLVKYYGV 67
>gnl|CDD|212999 cd12066, SH3_GRAF3, Src Homology 3 domain of GTPase Regulator
Associated with Focal adhesion kinase 3. GRAF3 is also
called Rho GTPase activating protein 42 (ARHGAP42) or
ARHGAP10-like. Though its function has not been
characterized, it may be a GAP with activity towards
RhoA and Cdc42, based on its similarity to GRAF and
GRAF2. It contains an N-terminal BAR domain, followed by
a Pleckstrin homology (PH) domain, a Rho GAP domain, and
a C-terminal SH3 domain. The SH3 domain of GRAF and
GRAF2 binds PKNbeta, a target of the small GTPase Rho.
SH3 domains bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs;
they play a role in the regulation of enzymes by
intramolecular interactions, changing the subcellular
localization of signal pathway components and mediate
multiprotein complex assemblies.
Length = 55
Score = 30.4 bits (68), Expect = 0.26
Identities = 16/49 (32%), Positives = 23/49 (46%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
A+Y KA +LS +GA + + + E W G G +P NYV
Sbjct: 4 AMYSCKAEHSHELSFPQGAIFSNVYPSVEPGWLKATYEGKTGLVPENYV 52
>gnl|CDD|198222 cd10359, SH2_SH3BP2, Src homology 2 domain found in c-Abl SH3
domain-binding protein-2 (SH3BP2). The adaptor protein
3BP2/SH3BP2 plays a regulatory role in signaling from
immunoreceptors. The protein-tyrosine kinase Syk
phosphorylates 3BP2 which results in the activation of
Rac1 through the interaction with the SH2 domain of Vav1
and induces the binding to the SH2 domain of the
upstream protein-tyrosine kinase Lyn and enhances its
kinase activity. 3BP2 has a positive regulatory role in
IgE-mediated mast cell activation. In lymphocytes,
engagement of T cell or B cell receptors triggers
tyrosine phosphorylation of 3BP2. Suppression of the
3BP2 expression by siRNA results in the inhibition of T
cell or B cell receptor-mediated activation of NFAT.
3BP2 is required for the proliferation of B cells and B
cell receptor signaling. Mutations in the 3BP2 gene are
responsible for cherubism resulting in excessive bone
resorption in the jaw. In general SH2 domains are
involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 101
Score = 31.5 bits (71), Expect = 0.27
Identities = 22/81 (27%), Positives = 38/81 (46%), Gaps = 3/81 (3%)
Query: 329 PEVKDKEGCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPE 388
P+ ++G + +RNSSTKG L ++ V++Y I + +F+L E+ S+
Sbjct: 21 PKGGPQDGLYCIRNSSTKGGKVLVVWDGGAEK-VRNYRIFEKD-CKFYLHEREVFSSLGS 78
Query: 389 VV-NYHRHNSGGLASRLKTSP 408
+V +Y H S P
Sbjct: 79 LVEHYATHVLPSHTSLTLRVP 99
Score = 30.7 bits (69), Expect = 0.51
Identities = 15/57 (26%), Positives = 26/57 (45%), Gaps = 6/57 (10%)
Query: 258 YVGDMSRQRAESILKQ-----EDKEGCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHI 309
+ M + E + K ++G + +RNSSTKG L ++ V++Y I
Sbjct: 3 FKNTMESREVERLFKATSPKGGPQDGLYCIRNSSTKGGKVLVVWDGGAEK-VRNYRI 58
>gnl|CDD|212729 cd11795, SH3_DNMBP_N2, Second N-terminal Src homology 3 domain of
Dynamin Binding Protein, also called Tuba. DNMBP or
Tuba is a cdc42-specific guanine nucleotide exchange
factor (GEF) that contains four N-terminal SH3 domains,
a central RhoGEF [or Dbl homology (DH)] domain followed
by a Bin/Amphiphysin/Rvs (BAR) domain, and two
C-terminal SH3 domains. It provides a functional link
between dynamin and key regulatory proteins of the actin
cytoskeleton. It plays an important role in regulating
cell junction configuration. The four N-terminal SH3
domains of DNMBP binds the GTPase dynamin, which plays
an important role in the fission of endocytic vesicles.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 54
Score = 30.1 bits (68), Expect = 0.29
Identities = 18/53 (33%), Positives = 29/53 (54%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
VV + F + E G L+L++G E+ T W + + GS G+ PS+ V+E
Sbjct: 2 VVCIEAFTSQEPGHLNLQRGDLVELTGTTDSGWLQGRSCWGSSGFFPSSCVQE 54
>gnl|CDD|212853 cd11920, SH3_Sorbs2_1, First Src Homology 3 domain of Sorbin and
SH3 domain containing 2 (Sorbs2), also called
Arg-binding protein 2 (ArgBP2). Sorbs2 or ArgBP2 is an
adaptor protein containing one sorbin homology (SoHo)
and three SH3 domains. It regulates actin-dependent
processes including cell adhesion, morphology, and
migration. It is expressed in many tissues and is
abundant in the heart. Like vinexin, it is found in
focal adhesion where it interacts with vinculin and
afadin. It also localizes in epithelial cell stress
fibers and in cardiac muscle cell Z-discs. Sorbs2 has
been implicated to play roles in the signaling of c-Arg,
Akt, and Pyk2. Other interaction partners of Sorbs2
include c-Abl, flotillin, spectrin, dynamin 1/2,
synaptojanin, PTP-PEST, among others. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 55
Score = 30.0 bits (67), Expect = 0.29
Identities = 16/51 (31%), Positives = 30/51 (58%), Gaps = 1/51 (1%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
A+Y FKA +LS +KG ++ ++W++ + +G VG P +YV++
Sbjct: 5 AVYDFKAQTSKELSFKKGDTVYILRKIDQNWYE-GEHHGRVGIFPISYVEK 54
>gnl|CDD|198220 cd10357, SH2_ShkD_ShkE, Src homology 2 (SH2) domain found in SH2
domain-bearing protein kinases D and E (ShkD and ShkE).
SH2-bearing genes cloned from Dictyostelium include two
transcription factors, STATa and STATc, and a signaling
factor, SHK1 (shkA). A database search of the
Dictyostelium discoideum genome revealed two additional
putative STAT sequences, dd-STATb and dd-STATd, and four
additional putative SHK genes, dd-SHK2 (shkB), dd-SHK3
(shkC), dd-SHK4 (shkD), and dd-SHK5 (shkE). This model
contains members of shkD and shkE. All of the SHK
members are most closely related to the protein kinases
found in plants. However these kinases in plants are
not conjugated to any SH2 or SH2-like sequences.
Alignment data indicates that the SHK SH2 domains carry
some features of the STAT SH2 domains in Dictyostelium.
When STATc's linker domain was used for a BLAST search,
the sequence between the protein kinase domain and the
SH2 domain (the linker) of SHK was recovered, suggesting
a close relationship among these molecules within this
region. SHK's linker domain is predicted to contain an
alpha-helix which is indeed homologous to that of STAT.
Based on the phylogenetic alignment, SH2 domains can be
grouped into two categories, STAT-type and Src-type. SHK
family members are in between, but are closer to the
STAT-type which indicates a close relationship between
SHK and STAT families in their SH2 domains and further
supports the notion that SHKs linker-SH2 domain evolved
from STAT or STATL (STAT-like Linker-SH2) domain found
in plants. In SHK, STAT, and SPT6, the linker-SH2
domains all reside exclusively in the C-terminal
regions. In general SH2 domains are involved in signal
transduction. They typically bind pTyr-containing
ligands via two surface pockets, a pTyr and hydrophobic
binding pocket, allowing proteins with SH2 domains to
localize to tyrosine phosphorylated sites.
Length = 87
Score = 30.9 bits (70), Expect = 0.30
Identities = 16/33 (48%), Positives = 22/33 (66%), Gaps = 1/33 (3%)
Query: 255 KAWYVGDMSRQRAESILKQEDKEGCFVVRNSST 287
K+W+ GD+SR AE L+ EG F++R SST
Sbjct: 10 KSWFHGDISRDEAEKRLRGR-PEGTFLIRLSST 41
>gnl|CDD|198285 cd10718, SH2_CIS, Src homology 2 (SH2) domain found in
cytokine-inducible SH2-containing protein (CIS). CIS
family members are known to be cytokine-inducible
negative regulators of cytokine signaling. The
expression of the CIS gene can be induced by IL2, IL3,
GM-CSF and EPO in hematopoietic cells.
Proteasome-mediated degradation of this protein has been
shown to be involved in the inactivation of the
erythropoietin receptor. Suppressor of cytokine
signalling (SOCS) was first recognized as a group of
cytokine-inducible SH2 (CIS) domain proteins comprising
eight family members in human (CIS and SOCS1-SOCS7). In
addition to the SH2 domain, SOCS proteins have a
variable N-terminal domain and a conserved SOCS box in
the C-terminal domain. SOCS proteins bind to a substrate
via their SH2 domain. The prototypical members, CIS and
SOCS1-SOCS3, have been shown to regulate growth hormone
signaling in vitro and in a classic negative feedback
response compete for binding at phosphotyrosine sites in
JAK kinase and receptor pathways to displace effector
proteins and target bound receptors for proteasomal
degradation. Loss of SOCS activity results in excessive
cytokine signaling associated with a variety of
hematopoietic, autoimmune, and inflammatory diseases and
certain cancers. In general SH2 domains are involved in
signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 88
Score = 30.9 bits (70), Expect = 0.30
Identities = 17/42 (40%), Positives = 24/42 (57%), Gaps = 2/42 (4%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSS-TKGLYTLSLYT 297
WY G ++ A L Q+ EG F+VR+SS + TLS+ T
Sbjct: 6 WYWGSITASEAHQAL-QKAPEGTFLVRDSSHPSYMLTLSVKT 46
>gnl|CDD|198214 cd10351, SH2_SH2D4B, Src homology 2 domain found in the SH2 domain
containing protein 4B (SH2D4B). SH2D4B contains a
single SH2 domain. In general SH2 domains are involved
in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 103
Score = 31.4 bits (71), Expect = 0.31
Identities = 21/62 (33%), Positives = 34/62 (54%), Gaps = 6/62 (9%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHIKQNSRGE 316
W+ G +SR+ AE++L EG F+VR S YTLS + KH+ + ++ G+
Sbjct: 9 WFHGIISREEAEALLMNA-TEGSFLVRVSEKIWGYTLSYRLQ---SGFKHFLV--DASGD 62
Query: 317 FF 318
F+
Sbjct: 63 FY 64
>gnl|CDD|212906 cd11973, SH3_ASEF, Src homology 3 domain of APC-Stimulated guanine
nucleotide Exchange Factor. ASEF, also called ARHGEF4,
exists in an autoinhibited form and is activated upon
binding of the tumor suppressor APC (adenomatous
polyposis coli). GEFs activate small GTPases by
exchanging bound GDP for free GTP. ASEF can activate
Rac1 or Cdc42. Truncated ASEF, which is found in
colorectal cancers, is constitutively active and has
been shown to promote angiogenesis and cancer cell
migration. ASEF contains a SH3 domain followed by RhoGEF
(also called Dbl-homologous or DH) and Pleckstrin
Homology (PH) domains. In its autoinhibited form, the
SH3 domain of ASEF forms an extensive interface with the
DH and PH domains, blocking the Rac binding site. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 73
Score = 30.4 bits (68), Expect = 0.31
Identities = 17/52 (32%), Positives = 29/52 (55%), Gaps = 5/52 (9%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW--KVKDKNGSVGYIPSNYVK 179
AL+ ++ +L + G EVMD T + WW +V D S G+ P+++V+
Sbjct: 22 ALWDHVTMDDQELGFKAGDVIEVMDATNKEWWWGRVLD---SEGWFPASFVR 70
>gnl|CDD|214600 smart00287, SH3b, Bacterial SH3 domain homologues.
Length = 63
Score = 30.0 bits (68), Expect = 0.35
Identities = 11/38 (28%), Positives = 20/38 (52%)
Query: 143 SLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
+L+KG + +V+ + W K+ +G GY+P V
Sbjct: 26 TLKKGDKVKVLGVDGQDWAKITYGSGQRGYVPGYVVNT 63
>gnl|CDD|212986 cd12053, SH3_CD2AP_1, First Src Homology 3 domain (SH3A) of
CD2-associated protein. CD2AP, also called CMS (Cas
ligand with Multiple SH3 domains) or METS1
(Mesenchyme-to-Epithelium Transition protein with SH3
domains), is a cytosolic adaptor protein that plays a
role in regulating the cytoskeleton. It is critical in
cell-to-cell union necessary for kidney function. It
also stabilizes the contact between a T cell and
antigen-presenting cells. It is primarily expressed in
podocytes at the cytoplasmic face of the slit diaphragm
and serves as a linker anchoring podocin and nephrin to
the actin cytoskeleton. CD2AP contains three SH3
domains, a proline-rich region, and a C-terminal
coiled-coil domain. All of these domains enable CD2AP to
bind various protein partners and assemble complexes
that have been implicated in many different functions.
This alignment model represents the first SH3 domain
(SH3A) of CD2AP. SH3A binds to the PXXXPR motif present
in c-Cbl and the cytoplasmic domain of cell adhesion
protein CD2. Its interaction with CD2 anchors CD2 at
sites of cell contact. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 56
Score = 29.8 bits (67), Expect = 0.40
Identities = 14/53 (26%), Positives = 24/53 (45%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKE 180
+ Y + A+ +L++ G + +E W + NG G P N+VKE
Sbjct: 2 YIVEYDYDAVHEDELTIRVGEIIRNVKKLEEEGWLEGELNGRRGMFPDNFVKE 54
>gnl|CDD|212794 cd11860, SH3_DLG5, Src homology 3 domain of Disks Large homolog 5.
DLG5 is a multifunctional scaffold protein that is
located at sites of cell-cell contact and is involved in
the maintenance of cell shape and polarity. Mutations in
the DLG5 gene are associated with Crohn's disease (CD)
and inflammatory bowel disease (IBD). DLG5 is a member
of the MAGUK (membrane-associated guanylate kinase)
protein family, which is characterized by the presence
of a core of three domains: PDZ, SH3, and guanylate
kinase (GuK). The GuK domain in MAGUK proteins is
enzymatically inactive; instead, the domain mediates
protein-protein interactions and associates
intramolecularly with the SH3 domain. DLG5 contains 4
PDZ domains as well as an N-terminal domain of unknown
function. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 63
Score = 30.0 bits (68), Expect = 0.41
Identities = 20/64 (31%), Positives = 28/64 (43%), Gaps = 12/64 (18%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQ-----EHW--WKVKDKNG---SVGYIPSNY 177
V AL+ A +LS +K + +D+T W W V D+ G G IPS Y
Sbjct: 2 VRALFDRSAENEDELSFKKD-DILYVDNTMFNGVFGQWRAWLV-DEEGRKRKCGIIPSKY 59
Query: 178 VKEK 181
E+
Sbjct: 60 KVEE 63
>gnl|CDD|212852 cd11919, SH3_Sorbs1_1, First Src Homology 3 domain of Sorbin and
SH3 domain containing 1 (Sorbs1), also called ponsin.
Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl
associated protein). It is an adaptor protein containing
one sorbin homology (SoHo) and three SH3 domains. It
binds Cbl and plays a major role in regulating the
insulin signaling pathway by enhancing insulin-induced
phosphorylation of Cbl. Sorbs1, like vinexin, localizes
at cell-ECM and cell-cell adhesion sites where it binds
vinculin, paxillin, and afadin. It may function in the
control of cell motility. Other interaction partners of
Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7,
filamin C, among others. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 55
Score = 29.5 bits (66), Expect = 0.42
Identities = 14/50 (28%), Positives = 27/50 (54%), Gaps = 1/50 (2%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
A + FKA +L L+KG + ++W++ + +G VG P +Y++
Sbjct: 5 AKFDFKAQTLKELPLQKGDIVYIYKQIDQNWYE-GEHHGRVGIFPRSYIE 53
>gnl|CDD|199832 cd10417, SH2_SH2D7, Src homology 2 domain found in the SH2 domain
containing protein 7 (SH2D7). SH2D7 contains a single
SH2 domain. In general SH2 domains are involved in
signal transduction. They typically bind pTyr-containing
ligands via two surface pockets, a pTyr and hydrophobic
binding pocket, allowing proteins with SH2 domains to
localize to tyrosine phosphorylated sites.
Length = 102
Score = 30.6 bits (69), Expect = 0.44
Identities = 20/72 (27%), Positives = 33/72 (45%), Gaps = 6/72 (8%)
Query: 257 WYVGDMSRQRAESILKQEDKE-GCFVVRNSSTKGLYTLSLYTKVPHPHVKHYHIKQNSRG 315
W+ G ++R++ E +L+ DK G F++R S Y LS +H+ I Q
Sbjct: 9 WFHGFITRKQTEQLLR--DKALGSFLIRLSDRATGYILSYRGS---DRCRHFVINQLRNR 63
Query: 316 EFFLSEKHCCHS 327
+ +S HS
Sbjct: 64 RYLISGDTSSHS 75
>gnl|CDD|132964 cd06633, STKc_TAO3, Catalytic domain of the Protein
Serine/Threonine Kinase, Thousand-and-one amino acids 3.
Serine/threonine kinases (STKs), thousand-and-one amino
acids 3 (TAO3) subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The TAO subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. TAO proteins possess mitogen-activated protein
kinase (MAPK) kinase kinase (MAPKKK or MAP3K or MKKK)
activity. MAPK signaling cascades are important in
mediating cellular responses to extracellular signals.
TAO3 is also known as JIK (JNK inhibitory kinase) or KFC
(kinase from chicken). It specifically activates c-Jun
N-terminal kinase (JNK), presumably by phosphorylating
and activating MKK4/MKK7. In Saccharomyces cerevisiae,
TAO3 is a component of the RAM (regulation of Ace2p
activity and cellular morphogenesis) signaling pathway.
TAO3 is upregulated in retinal ganglion cells after
axotomy, and may play a role in apoptosis.
Length = 313
Score = 32.7 bits (74), Expect = 0.46
Identities = 23/84 (27%), Positives = 40/84 (47%), Gaps = 8/84 (9%)
Query: 427 DPAELML-LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSE-------DDFIEEAKVMTR 478
DP E+ + L E+G G FG V + +V +K+ + S D I+E K + +
Sbjct: 18 DPEEIFVGLHEIGHGSFGAVYFATNSHTNEVVAVKKMSYSGKQTNEKWQDIIKEVKFLQQ 77
Query: 479 LQHQNLVQLYGVCSKHRPIYIVTD 502
L+H N ++ G K ++V +
Sbjct: 78 LKHPNTIEYKGCYLKEHTAWLVME 101
>gnl|CDD|212889 cd11956, SH3_srGAP4, Src homology 3 domain of Slit-Robo GTPase
Activating Protein 4. srGAP4, also called ARHGAP4, is
highly expressed in hematopoietic cells and may play a
role in lymphocyte differentiation. It is able to
stimulate the GTPase activity of Rac1, Cdc42, and RhoA.
In the nervous system, srGAP4 has been detected in
differentiating neurites and may be involved in axon and
dendritic growth. srGAPs are Rho GAPs that interact with
Robo1, the transmembrane receptor of Slit proteins. Slit
proteins are secreted proteins that control axon
guidance and the migration of neurons and leukocytes.
srGAPs contain an N-terminal F-BAR domain, a Rho GAP
domain, and a C-terminal SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 55
Score = 29.4 bits (66), Expect = 0.46
Identities = 13/50 (26%), Positives = 22/50 (44%), Gaps = 1/50 (2%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
VA + + +LS ++G + WW+ + NG G IP Y+
Sbjct: 5 VACFDYTGRTAQELSFKRGDVLLLHSKASSDWWR-GEHNGMRGLIPHKYI 53
>gnl|CDD|212743 cd11809, SH3_srGAP, Src homology 3 domain of Slit-Robo GTPase
Activating Proteins. Slit-Robo GTPase Activating
Proteins (srGAPs) are Rho GAPs that interact with Robo1,
the transmembrane receptor of Slit proteins. Slit
proteins are secreted proteins that control axon
guidance and the migration of neurons and leukocytes.
Vertebrates contain three isoforms of srGAPs (srGAP1-3),
all of which are expressed during embryonic and early
development in the nervous system but with different
localization and timing. A fourth member has also been
reported (srGAP4, also called ARHGAP4). srGAPs contain
an N-terminal F-BAR domain, a Rho GAP domain, and a
C-terminal SH3 domain. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 29.3 bits (66), Expect = 0.51
Identities = 12/50 (24%), Positives = 21/50 (42%), Gaps = 1/50 (2%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
A + + +LS +KG + + WW+ NG G +P Y+
Sbjct: 3 TAQFDYTGRSERELSFKKGDSLTLYRQVSDDWWR-GQLNGQDGLVPHKYI 51
>gnl|CDD|132942 cd06611, STKc_SLK_like, Catalytic domain of Ste20-like kinase-like
Protein Serine/Threonine Kinases. Serine/threonine
kinases (STKs), Ste20-like kinase (SLK)-like subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The SLK-like subfamily
is part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. Members of the subfamily include SLK, STK10
(also called LOK for lymphocyte-oriented kinase), SmSLK
(Schistosoma mansoni SLK), and related proteins. SLK
promotes apoptosis through apoptosis signal-regulating
kinase 1 (ASK1) and the mitogen-activated protein kinase
(MAPK) p38. It also plays a role in mediating actin
reorganization. STK10 is responsible in regulating the
CD28 responsive element in T cells, as well as leukocyte
function associated antigen (LFA-1)-mediated lymphocyte
adhesion. SmSLK is capable of activating the MAPK Jun
N-terminal kinase (JNK) pathway in human embryonic
kidney (HEK) cells as well as in Xenopus oocytes. It may
participate in regulating MAPK cascades during
host-parasite interactions.
Length = 280
Score = 32.4 bits (74), Expect = 0.51
Identities = 22/73 (30%), Positives = 35/73 (47%), Gaps = 11/73 (15%)
Query: 422 DKWEIDPAELMLLEELGSGQFGVVRRGKWR--GSIDVAMMKEGTMSED--DFIEEAKVMT 477
D WEI + ELG G FG V + + + G A + + E+ DF+ E +++
Sbjct: 5 DIWEI-------IGELGDGAFGKVYKAQHKETGLFAAAKIIQIESEEELEDFMVEIDILS 57
Query: 478 RLQHQNLVQLYGV 490
+H N+V LY
Sbjct: 58 ECKHPNIVGLYEA 70
Score = 29.7 bits (67), Expect = 3.1
Identities = 8/22 (36%), Positives = 13/22 (59%)
Query: 28 CIQVCKGMAYLERHNYIHRETK 49
C Q+ + + +L H IHR+ K
Sbjct: 109 CRQMLEALNFLHSHKVIHRDLK 130
>gnl|CDD|173771 cd08529, STKc_FA2-like, Catalytic domain of the Protein
Serine/Threonine Kinase, Chlamydomonas reinhardtii FA2
and similar domains. Serine/Threonine Kinases (STKs),
Chlamydomonas reinhardtii FA2-like subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Chlamydomonas
reinhardtii FA2-like subfamily belongs to the
(NIMA)-related kinase (Nek) family. The Nek family
includes seven different Chlamydomonas Neks (CNKs 1-6
and Fa2). This subfamily includes FA2 and CNK4. The Nek
family is part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. Chlamydomonas reinhardtii FA2 was discovered
in a genetic screen for deflagellation-defective
mutants. It is essential for
basal-body/centriole-associated microtubule severing,
and plays a role in cell cycle progression. No cellular
function has yet been ascribed to CNK4.
Length = 256
Score = 32.1 bits (73), Expect = 0.52
Identities = 15/41 (36%), Positives = 26/41 (63%), Gaps = 1/41 (2%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGI 249
++ KSDVWA GV+++E T GK P+ ++ ++ RG+
Sbjct: 178 YNEKSDVWALGVVLYECCT-GKHPFDANNQGALILKIIRGV 217
Score = 30.9 bits (70), Expect = 1.3
Identities = 18/79 (22%), Positives = 36/79 (45%), Gaps = 6/79 (7%)
Query: 430 ELMLLEELGSGQFGVVRRGKWRGSIDVAMMKE------GTMSEDDFIEEAKVMTRLQHQN 483
+ +L ++G G FGVV + + V MK+ ++ I+EA+V+ +L
Sbjct: 1 DFEILNKIGKGSFGVVFKVVRKADKRVYAMKQIDLSKMNRREREEAIDEARVLAKLDSSY 60
Query: 484 LVQLYGVCSKHRPIYIVTD 502
+++ Y + IV +
Sbjct: 61 IIRYYESFLDKGKLNIVME 79
>gnl|CDD|212963 cd12030, SH3_DLG4, Src Homology 3 domain of Disks Large homolog 4.
DLG4, also called postsynaptic density-95 (PSD95) or
synapse-associated protein 90 (SAP90), is a scaffolding
protein that clusters at synapses and plays an important
role in synaptic development and plasticity. It is
responsible for the membrane clustering and retention of
many transporters and receptors such as potassium
channels and PMCA4b, a P-type ion transport ATPase,
among others. DLG4 is a member of the MAGUK
(membrane-associated guanylate kinase) protein family,
which is characterized by the presence of a core of
three domains: PDZ, SH3, and guanylate kinase (GuK). The
GuK domain in MAGUK proteins is enzymatically inactive;
instead, the domain mediates protein-protein
interactions and associates intramolecularly with the
SH3 domain. DLG4 contains three PDZ domains. The SH3
domain of DLG4 binds and clusters the kainate subgroup
of glutamate receptors via two proline-rich sequences in
their C-terminal tail. It also binds AKAP79/150
(A-kinase anchoring protein). SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 66
Score = 29.9 bits (67), Expect = 0.52
Identities = 12/39 (30%), Positives = 18/39 (46%), Gaps = 5/39 (12%)
Query: 142 LSLEKGAEYEVMDDTQEHWWKVKDKNGS-----VGYIPS 175
LS G V+D E WW+ + + +G+IPS
Sbjct: 23 LSFRFGDVLHVIDAGDEEWWQARRVHSDSETEEIGFIPS 61
>gnl|CDD|223067 PHA03380, PHA03380, transactivating tegument protein VP16;
Provisional.
Length = 432
Score = 32.7 bits (75), Expect = 0.52
Identities = 22/82 (26%), Positives = 33/82 (40%), Gaps = 9/82 (10%)
Query: 5 SLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRETKK-------SLYPSSL 57
+LL YLR L D + + + L Y +RE + LY S
Sbjct: 169 ALLRYLRASARRLHRGARAG-DRDRDLQERLRQLIADRY-YREAARLARLLYLHLYLSVT 226
Query: 58 NEISFILWPDQMIRPKVVVALY 79
E+S+ L Q++R V V+L
Sbjct: 227 REVSWRLHASQVMRQDVFVSLR 248
>gnl|CDD|212967 cd12034, SH3_MPP4, Src Homology 3 domain of Membrane Protein,
Palmitoylated 4 (or MAGUK p55 subfamily member 4).
MPP4, also called Disks Large homolog 6 (DLG6) or
Amyotrophic lateral sclerosis 2 chromosomal region
candidate gene 5 protein (ALS2CR5), is a retina-specific
scaffolding protein that plays a role in organizing
presynaptic protein complexes in the photoreceptor
synapse, where it localizes to the plasma membrane. It
is required in the proper localization of calcium
ATPases and for maintenance of calcium homeostasis. MPP4
is one of seven vertebrate homologs of the Drosophila
Stardust protein, which is required in establishing cell
polarity, and it contains two L27 domains followed by
the core of three domains characteristic of MAGUK
(membrane-associated guanylate kinase) proteins: PDZ,
SH3, and guanylate kinase (GuK). The GuK domain in MAGUK
proteins is enzymatically inactive; instead, the domain
mediates protein-protein interactions and associates
intramolecularly with the SH3 domain. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 61
Score = 29.5 bits (66), Expect = 0.53
Identities = 13/39 (33%), Positives = 18/39 (46%), Gaps = 3/39 (7%)
Query: 142 LSLEKGAEYEVMDDTQEHWW---KVKDKNGSVGYIPSNY 177
L KG +++D WW K+ D G IPSN+
Sbjct: 23 LPFRKGDILQIVDQNDSLWWQARKLSDLAACAGLIPSNH 61
>gnl|CDD|132965 cd06634, STKc_TAO2, Catalytic domain of the Protein
Serine/Threonine Kinase, Thousand-and-one amino acids 2.
Serine/threonine kinases (STKs), thousand-and-one amino
acids 2 (TAO2) subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The TAO subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. TAO proteins possess mitogen-activated protein
kinase (MAPK) kinase kinase (MAPKKK or MAP3K or MKKK)
activity. MAPK signaling cascades are important in
mediating cellular responses to extracellular signals.
Human TAO2 is also known as prostate-derived Ste20-like
kinase (PSK) and was identified in a screen for
overexpressed RNAs in prostate cancer. TAO2 activates
both p38 and c-Jun N-terminal kinase (JNK), by
phosphorylating and activating the respective MAP/ERK
kinases (MEKs, also known as MKKs or MAPKKs), MEK3/MEK6
and MKK4/MKK7. TAO2 contains a long C-terminal extension
with autoinhibitory segments. It is activated by the
release of this inhibition and the phosphorylation of
its activation loop serine. TAO2 functions as a
regulator of actin cytoskeletal and microtubule
organization. In addition, it regulates the transforming
growth factor-activated kinase 1 (TAK1), which is a
MAPKKK that plays an essential role in the signaling
pathways of tumor necrosis factor (TNF), interleukin 1
(IL-1), and Toll-like receptor (TLR).
Length = 308
Score = 32.3 bits (73), Expect = 0.54
Identities = 22/84 (26%), Positives = 40/84 (47%), Gaps = 8/84 (9%)
Query: 427 DPAELML-LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSE-------DDFIEEAKVMTR 478
DP +L L E+G G FG V + + +V +K+ + S D I+E + + +
Sbjct: 12 DPEKLFSDLREIGHGSFGAVYFARDVRNSEVVAIKKMSYSGKQSNEKWQDIIKEVRFLQK 71
Query: 479 LQHQNLVQLYGVCSKHRPIYIVTD 502
L+H N +Q G + ++V +
Sbjct: 72 LRHPNTIQYRGCYLREHTAWLVME 95
>gnl|CDD|198208 cd10345, SH2_C-SH2_Zap70_Syk_like, C-terminal Src homology 2 (SH2)
domain found in Zeta-chain-associated protein kinase 70
(ZAP-70) and Spleen tyrosine kinase (Syk) proteins.
ZAP-70 and Syk comprise a family of hematopoietic cell
specific protein tyrosine kinases (PTKs) that are
required for antigen and antibody receptor function.
ZAP-70 is expressed in T and natural killer (NK) cells
and Syk is expressed in B cells, mast cells,
polymorphonuclear leukocytes, platelets, macrophages,
and immature T cells. They are required for the proper
development of T and B cells, immune receptors, and
activating NK cells. They consist of two N-terminal Src
homology 2 (SH2) domains and a C-terminal kinase domain
separated from the SH2 domains by a linker or hinge
region. Phosphorylation of both tyrosine residues within
the Immunoreceptor Tyrosine-based Activation Motifs
(ITAM; consensus sequence Yxx[LI]x(7,8)Yxx[LI]) by the
Src-family PTKs is required for efficient interaction of
ZAP-70 and Syk with the receptor subunits and for
receptor function. ZAP-70 forms two phosphotyrosine
binding pockets, one of which is shared by both SH2
domains. In Syk the two SH2 domains do not form such a
phosphotyrosine-binding site. The SH2 domains here are
believed to function independently. In addition, the two
SH2 domains of Syk display flexibility in their relative
orientation, allowing Syk to accommodate a greater
variety of spacing sequences between the ITAM
phosphotyrosines and singly phosphorylated non-classical
ITAM ligands. This model contains the C-terminus SH2
domains of both Syk and Zap70. In general SH2 domains
are involved in signal transduction. They typically
bind pTyr-containing ligands via two surface pockets, a
pTyr and hydrophobic binding pocket, allowing proteins
with SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 95
Score = 30.4 bits (68), Expect = 0.54
Identities = 17/74 (22%), Positives = 32/74 (43%), Gaps = 5/74 (6%)
Query: 335 EGCFVVRNSSTKGLYTLSL-YTKVPHPHVKHYHIKQNSRGEFFLSEKHCCHSIPEVVNYH 393
G F++R G Y L L + V HY I ++ G+ + E ++ ++V ++
Sbjct: 23 NGKFLIRARDNNGSYALCLLHEGK----VLHYRIDKDKTGKLSIPEGKKFDTLWQLVEHY 78
Query: 394 RHNSGGLASRLKTS 407
+ + GL L
Sbjct: 79 SYKADGLLRVLTVP 92
>gnl|CDD|132966 cd06635, STKc_TAO1, Catalytic domain of the Protein
Serine/Threonine Kinase, Thousand-and-one amino acids 1.
Serine/threonine kinases (STKs), thousand-and-one amino
acids 1 (TAO1) subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The TAO subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. TAO proteins possess mitogen-activated protein
kinase (MAPK) kinase kinase (MAPKKK or MAP3K or MKKK)
activity. MAPK signaling cascades are important in
mediating cellular responses to extracellular signals.
TAO1 is sometimes referred to as prostate-derived
sterile 20-like kinase 2 (PSK2). TAO1 activates the p38
MAPK through direct interaction with and activation of
MEK3. TAO1 is highly expressed in the brain and may play
a role in neuronal apoptosis. TAO1 interacts with the
checkpoint proteins BubR1 and Mad2, and plays an
important role in regulating mitotic progression, which
is required for both chromosome congression and
checkpoint-induced anaphase delay. TAO1 may play a role
in protecting genomic stability.
Length = 317
Score = 32.4 bits (73), Expect = 0.57
Identities = 22/84 (26%), Positives = 38/84 (45%), Gaps = 8/84 (9%)
Query: 427 DPAELML-LEELGSGQFGVV---RRGKWRGSIDVAMM----KEGTMSEDDFIEEAKVMTR 478
DP +L L E+G G FG V R + + + M K+ D I+E K + R
Sbjct: 22 DPEKLFTDLREIGHGSFGAVYFARDVRTNEVVAIKKMSYSGKQSNEKWQDIIKEVKFLQR 81
Query: 479 LQHQNLVQLYGVCSKHRPIYIVTD 502
++H N ++ G + ++V +
Sbjct: 82 IKHPNSIEYKGCYLREHTAWLVME 105
>gnl|CDD|215036 PLN00034, PLN00034, mitogen-activated protein kinase kinase;
Provisional.
Length = 353
Score = 32.1 bits (73), Expect = 0.59
Identities = 18/51 (35%), Positives = 25/51 (49%), Gaps = 7/51 (13%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYLERHNYIHRETKKS 51
M GSL E T + L D+ Q+ G+AYL R + +HR+ K S
Sbjct: 154 MDGGSL-------EGTHIADEQFLADVARQILSGIAYLHRRHIVHRDIKPS 197
>gnl|CDD|173729 cd06617, PKc_MKK3_6, Catalytic domain of the dual-specificity
Protein Kinases, MAP kinase kinases 3 and 6. Protein
kinases (PKs), MAP kinase kinase 3 (MKK3) and MKK6
subfamily, catalytic (c) domain. PKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine or tyrosine residues on protein
substrates. The MKK3 and MKK6 subfamily is part of a
larger superfamily that includes the catalytic domains
of other protein serine/threonine kinases, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. The mitogen-activated protein (MAP) kinase
signaling pathways are important mediators of cellular
responses to extracellular signals. The pathways involve
a triple kinase core cascade comprising the MAP kinase
(MAPK), which is phosphorylated and activated by a MAPK
kinase (MAPKK or MKK), which itself is phosphorylated
and activated by a MAPK kinase kinase (MAPKKK or MKKK).
MKK3 and MKK6 are dual-specificity PKs that
phosphorylate and activate their downstream target, p38
MAPK, on specific threonine and tyrosine residues.
MKK3/6 plays roles in the regulation of cell cycle
progression, cytokine- and stress-induced apoptosis,
oncogenic transformation, and adult tissue regeneration.
In addition, MKK6 plays a critical role in osteoclast
survival in inflammatory disease while MKK3 is
associated with tumor invasion, progression, and poor
patient survival in glioma.
Length = 283
Score = 32.0 bits (73), Expect = 0.64
Identities = 17/41 (41%), Positives = 23/41 (56%), Gaps = 1/41 (2%)
Query: 198 ELIHQVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKN 238
E I+ LN + KSDVW+ G+ M E+ T G+ PY K
Sbjct: 173 ERINPELNQKGYDVKSDVWSLGITMIELAT-GRFPYDSWKT 212
>gnl|CDD|198278 cd10415, SH2_Grb10, Src homology 2 (SH2) domain found in the growth
factor receptor bound, subclass 10 (Grb10) proteins.
The Grb family binds to the epidermal growth factor
receptor (EGFR, erbB1) via their SH2 domains. Grb10 is
part of the Grb7 family of proteins which also includes
Grb7, and Grb14. They are composed of an N-terminal
Proline-rich domain, a Ras Associating-like (RA) domain,
a Pleckstrin Homology (PH) domain, a phosphotyrosine
interaction region (PIR, BPS) and a C-terminal SH2
domain. The SH2 domains of Grb7, Grb10 and Grb14
preferentially bind to a different RTK. Grb10 has been
shown to interact with many different proteins,
including the insulin and IGF1 receptors,
platelet-derived growth factor (PDGF) receptor-beta,
Ret, Kit, Raf1 and MEK1, and Nedd4. In general SH2
domains are involved in signal transduction. They
typically bind pTyr-containing ligands via two surface
pockets, a pTyr and hydrophobic binding pocket, allowing
proteins with SH2 domains to localize to tyrosine
phosphorylated sites.
Length = 108
Score = 30.4 bits (68), Expect = 0.65
Identities = 17/61 (27%), Positives = 35/61 (57%), Gaps = 5/61 (8%)
Query: 251 LEKPKAWYVGDMSRQRAESILKQEDK-EGCFVVRNS-STKGLYTLSLYTKVPHPHVKHYH 308
+ + + W+ G +SR+ + I+KQ+ +G F++R+S S + L+L H +K++
Sbjct: 1 IHRTQHWFHGRISREESHRIIKQQGLVDGLFLLRDSQSNPKAFVLTL---CHHQKIKNFQ 57
Query: 309 I 309
I
Sbjct: 58 I 58
>gnl|CDD|173732 cd06628, STKc_MAPKKK_Byr2_like, Catalytic domain of fungal
Byr2-like MAP Kinase Kinase Kinases. Serine/threonine
kinases (STKs), mitogen-activated protein kinase (MAPK)
kinase kinase (MAPKKK) subfamily, fungal Byr2-like
proteins, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MAPKKK subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. Members of this group include the MAPKKKs
Schizosaccharomyces pombe Byr2, Saccharomyces cerevisiae
and Cryptococcus neoformans Ste11, and related proteins.
They contain an N-terminal SAM (sterile alpha-motif)
domain, which mediates protein-protein interaction, and
a C-terminal catalytic domain. MAPKKKs phosphorylate and
activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which
in turn phosphorylate and activate MAPKs during
signaling cascades that are important in mediating
cellular responses to extracellular signals. Fission
yeast Byr2 is regulated by Ras1. It responds to
pheromone signaling and controls mating through the MAPK
pathway. Budding yeast Ste11 functions in MAPK cascades
that regulate mating, high osmolarity glycerol, and
filamentous growth responses.
Length = 267
Score = 31.7 bits (72), Expect = 0.68
Identities = 12/44 (27%), Positives = 26/44 (59%), Gaps = 1/44 (2%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRV 245
+V+ T ++ K+D+W+ G L+ E+ T GK P+ + + ++
Sbjct: 182 EVVKQTSYTRKADIWSLGCLVVEMLT-GKHPFPDCTQLQAIFKI 224
>gnl|CDD|173755 cd08215, STKc_Nek, Catalytic domain of the Protein Serine/Threonine
Kinase, Never In Mitosis gene A-related kinase.
Serine/Threonine Kinases (STKs), Never In Mitosis gene A
(NIMA)-related kinase (Nek) family, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek family is part
of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. The Nek family is
composed of 11 different mammalian members (Nek1-11)
with similarity to the catalytic domain of Aspergillus
nidulans NIMA kinase, the founding member of the Nek
family which was identified in a screen for cell cycle
mutants that were prevented from entering mitosis. Neks
contain a conserved N-terminal catalytic domain and a
more divergent C-terminal regulatory region of various
sizes and structures. They are involved in the
regulation of downstream processes following the
activation of Cdc2, and many of their functions are cell
cycle-related. They play critical roles in microtubule
dynamics during ciliogenesis and mitosis.
Length = 258
Score = 31.7 bits (73), Expect = 0.68
Identities = 21/65 (32%), Positives = 35/65 (53%), Gaps = 12/65 (18%)
Query: 433 LLEELGSGQFGV---VRRGKWRGSIDVAMMKE---GTMSED---DFIEEAKVMTRLQHQN 483
+++++G G FG VRR G + V +KE MSE D + E K++ +L H N
Sbjct: 4 IIKQIGKGSFGKVYLVRRKS-DGKLYV--LKEIDLSNMSEKEREDALNEVKILKKLNHPN 60
Query: 484 LVQLY 488
+++ Y
Sbjct: 61 IIKYY 65
>gnl|CDD|212731 cd11797, SH3_DNMBP_N4, Fourth N-terminal Src homology 3 domain of
Dynamin Binding Protein, also called Tuba. DNMBP or
Tuba is a cdc42-specific guanine nucleotide exchange
factor (GEF) that contains four N-terminal SH3 domains,
a central RhoGEF [or Dbl homology (DH)] domain followed
by a Bin/Amphiphysin/Rvs (BAR) domain, and two
C-terminal SH3 domains. It provides a functional link
between dynamin and key regulatory proteins of the actin
cytoskeleton. It plays an important role in regulating
cell junction configuration. The four N-terminal SH3
domains of DNMBP bind the GTPase dynamin, which plays an
important role in the fission of endocytic vesicles. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 50
Score = 28.9 bits (65), Expect = 0.69
Identities = 14/44 (31%), Positives = 24/44 (54%), Gaps = 2/44 (4%)
Query: 75 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK--VKDKNGI 116
VALY F+A+E +L E G ++ ++ W + +K + GI
Sbjct: 2 GVALYRFQALEPNELDFEVGDRIRIIATLEDGWLEGELKGRRGI 45
Score = 28.2 bits (63), Expect = 1.3
Identities = 11/33 (33%), Positives = 18/33 (54%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHW 160
VALY F+A+E +L E G ++ ++ W
Sbjct: 2 GVALYRFQALEPNELDFEVGDRIRIIATLEDGW 34
>gnl|CDD|212991 cd12058, SH3_MLK4, Src Homology 3 domain of Mixed Lineage Kinase 4.
MLK4 is a Serine/Threonine Kinase (STK), catalyzing the
transfer of the gamma-phosphoryl group from ATP to S/T
residues on protein substrates. MLKs act as
mitogen-activated protein kinase kinase kinases (MAP3Ks,
MKKKs, MAPKKKs), which phosphorylate and activate MAPK
kinases (MAPKKs or MKKs or MAP2Ks), which in turn
phosphorylate and activate MAPKs during signaling
cascades that are important in mediating cellular
responses to extracellular signals. MLKs play roles in
immunity and inflammation, as well as in cell death,
proliferation, and cell cycle regulation. The specific
function of MLK4 is yet to be determined. Mutations in
the kinase domain of MLK4 have been detected in
colorectal cancers. MLK4 contains an SH3 domain, a
catalytic kinase domain, a leucine zipper, a
proline-rich region, and a CRIB domain that mediates
binding to GTP-bound Cdc42 and Rac. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 58
Score = 29.1 bits (65), Expect = 0.77
Identities = 18/54 (33%), Positives = 28/54 (51%), Gaps = 6/54 (11%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDT-----QEHWWKVKDKNGSVGYIPSNYV 178
ALY ++A +LSL +G EV+ + WW K ++ +G P+NYV
Sbjct: 4 ALYDYEASGEDELSLRRGDVVEVLSQDAAVSGDDGWWAGKIRH-RLGIFPANYV 56
>gnl|CDD|173673 cd05582, STKc_RSK_N, N-terminal catalytic domain of the Protein
Serine/Threonine Kinase, 90 kDa ribosomal protein S6
kinase. Serine/Threonine Kinases (STKs), 90 kDa
ribosomal protein S6 kinase (RSK) subfamily, N-terminal
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The RSK subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. RSKs contain an
N-terminal kinase domain (NTD) from the AGC family and a
C-terminal kinase domain (CTD) from the CAMK family.
They are activated by signaling inputs from
extracellular regulated kinase (ERK) and
phosphoinositide dependent kinase 1 (PDK1). ERK
phosphorylates and activates the CTD of RSK, serving as
a docking site for PDK1, which phosphorylates and
activates the NTD, which in turn phosphorylates all
known RSK substrates. RSKs act as downstream effectors
of mitogen-activated protein kinase (MAPK) and play key
roles in mitogen-activated cell growth, differentiation,
and survival. Mammals possess four RSK isoforms (RSK1-4)
from distinct genes. RSK proteins are also referred to
as MAP kinase-activated protein kinases (MAPKAPKs),
p90-RSKs, or p90S6Ks.
Length = 318
Score = 31.7 bits (72), Expect = 0.80
Identities = 12/32 (37%), Positives = 22/32 (68%), Gaps = 1/32 (3%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPY 233
+V+N + +D W++GVLM+E+ T G +P+
Sbjct: 168 EVVNRRGHTQSADWWSFGVLMFEMLT-GSLPF 198
>gnl|CDD|234912 PRK01170, PRK01170, phosphopantetheine adenylyltransferase/unknown
domain fusion protein; Provisional.
Length = 322
Score = 31.7 bits (72), Expect = 0.83
Identities = 11/53 (20%), Positives = 22/53 (41%), Gaps = 4/53 (7%)
Query: 132 YPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVKEKELL 184
P K I+ +E YE ++ + K G +G I ++ ++L+
Sbjct: 255 IPDKIIDMIKRGMEVSDAYEKYSGIKD----IDKKMGIIGKISKGKIRREDLI 303
>gnl|CDD|212816 cd11883, SH3_Sdc25, Src Homology 3 domain of Sdc25/Cdc25 guanine
nucleotide exchange factors. This subfamily is composed
of the Saccharomyces cerevisiae guanine nucleotide
exchange factors (GEFs) Sdc25 and Cdc25, and similar
proteins. These GEFs regulate Ras by stimulating the
GDP/GTP exchange on Ras. Cdc25 is involved in the
Ras/PKA pathway that plays an important role in the
regulation of metabolism, stress responses, and
proliferation, depending on available nutrients and
conditions. Proteins in this subfamily contain an
N-terminal SH3 domain as well as REM (Ras exchanger
motif) and RasGEF domains at the C-terminus. SH3 domains
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs; they play a
role in the regulation of enzymes by intramolecular
interactions, changing the subcellular localization of
signal pathway components and mediate multiprotein
complex assemblies.
Length = 55
Score = 28.8 bits (65), Expect = 0.84
Identities = 20/55 (36%), Positives = 26/55 (47%), Gaps = 4/55 (7%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWK--VKDKNGSV--GYIPSNY 177
VVVALY F LS + G V++ WW + +G V G+ PSNY
Sbjct: 1 VVVALYDFTPKSKNQLSFKAGDIIYVLNKDPSGWWDGVIISSSGKVKRGWFPSNY 55
>gnl|CDD|129050 smart00814, Alpha_TIF, Alpha trans-inducing protein (Alpha-TIF).
Alpha-TIF (VP16) from Herpes Simplex virus is an
essential tegument protein involved in the
transcriptional activation of viral immediate early (IE)
promoters (alpha genes) during the lytic phase of viral
infection. VP16 associates with cellular transcription
factors to enhance transcription rates, including the
general transcription factor TFIIB and the
transcriptional coactivator PC4. The N-terminal residues
of VP16 confer specificity for the IE genes, while the
C-terminal residues are responsible for transcriptional
activation. Within the C-terminal region are two
activation regions that can independently and
cooperatively activate transcription. VP16 forms a
transcriptional regulatory complex with two cellular
proteins, the POU-domain transcription factor Oct-1 and
the cell-proliferation factor HCF-1. VP16 is an
alpha/beta protein with an unusual fold. Other
transcription factors may have a similar topology.
Length = 356
Score = 31.6 bits (72), Expect = 0.87
Identities = 16/47 (34%), Positives = 23/47 (48%), Gaps = 6/47 (12%)
Query: 33 KGMAYLERHNYIHRETKKSLYPSSLNEISFILWPDQMIRPKVVVALY 79
+ A L R Y+H LY S E+S+ L Q++R V V+L
Sbjct: 190 REAARLARLLYLH------LYLSVTREVSWRLHAQQVMRQDVFVSLR 230
>gnl|CDD|212966 cd12033, SH3_MPP7, Src Homology 3 domain of Membrane Protein,
Palmitoylated 7 (or MAGUK p55 subfamily member 7). MPP7
is a scaffolding protein that binds to DLG1 and promotes
tight junction formation and epithelial cell polarity.
Mutations in the MPP7 gene may be associated with the
pathogenesis of diabetes and extreme bone mineral
density. It is one of seven vertebrate homologs of the
Drosophila Stardust protein, which is required in
establishing cell polarity, and it contains two L27
domains followed by the core of three domains
characteristic of MAGUK (membrane-associated guanylate
kinase) proteins: PDZ, SH3, and guanylate kinase (GuK).
The GuK domain in MAGUK proteins is enzymatically
inactive; instead, the domain mediates protein-protein
interactions and associates intramolecularly with the
SH3 domain. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 61
Score = 28.8 bits (64), Expect = 0.93
Identities = 19/49 (38%), Positives = 24/49 (48%), Gaps = 7/49 (14%)
Query: 135 KAI---EGGDLSLEKGAEYEVMDDTQEHWWKVK---DKNGSVGYIPSNY 177
KAI E G LS +KG ++M WW+ K D N G IPS +
Sbjct: 14 KAIPCKEAG-LSFKKGDILQIMSQDDATWWQAKHEGDANPRAGLIPSKH 61
>gnl|CDD|173643 cd05077, PTK_Jak1_rpt1, Pseudokinase (repeat 1) domain of the
Protein Tyrosine Kinase, Janus kinase 1. Protein
Tyrosine Kinase (PTK) family; Janus kinase 1 (Jak1);
pseudokinase domain (repeat 1). The PTKc (catalytic
domain) family to which this subfamily belongs, is part
of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Jak1 is a
member of the Janus kinase (Jak) subfamily of proteins,
which are cytoplasmic (or nonreceptor) tyr kinases
containing an N-terminal FERM domain, followed by a Src
homology 2 (SH2) domain, a pseudokinase domain, and a
C-terminal tyr kinase domain. The pseudokinase domain
shows similarity to tyr kinases but lacks crucial
residues for catalytic activity and ATP binding. It
modulates the kinase activity of the C-terminal
catalytic domain. Jaks are crucial for cytokine receptor
signaling. They are activated by autophosphorylation
upon cytokine-induced receptor aggregation, and
subsequently trigger downstream signaling events such as
the phosphorylation of signal transducers and activators
of transcription (STATs). Jak1 is widely expressed in
many tissues. Many cytokines are dependent on Jak1 for
signaling, including those that use the shared receptor
subunits common gamma chain (IL-2, IL-4, IL-7, IL-9,
IL-15, IL-21) and gp130 (IL-6, IL-11, oncostatin M,
G-CSF, and IFNs, among others). The many varied
interactions of Jak1 and its ubiquitous expression
suggest many biological roles. Jak1 is important in
neurological development, as well as in lymphoid
development and function. It also plays a role in the
pathophysiology of cardiac hypertrophy and heart
failure. A mutation in the ATP-binding site of Jak1 was
identified in a human uterine leiomyosarcoma cell line,
resulting in defective cytokine induction and antigen
presentation, thus allowing the tumor to evade the
immune system.
Length = 262
Score = 31.5 bits (71), Expect = 0.97
Identities = 11/26 (42%), Positives = 18/26 (69%)
Query: 469 FIEEAKVMTRLQHQNLVQLYGVCSKH 494
F E A +M ++ H+++V LYGVC +
Sbjct: 51 FFETASMMRQVSHKHIVLLYGVCVRD 76
>gnl|CDD|173737 cd07834, STKc_MAPK, Catalytic domain of the Serine/Threonine
Kinase, Mitogen-Activated Protein Kinase.
Serine/Threonine Kinases (STKs), Mitogen-Activated
Protein Kinase (MAPK) subfamily, catalytic (c) domain.
STKs catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The MAPK subfamily is part of a larger
superfamily that includes the catalytic domains of other
protein STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. MAPKs serve as important
mediators of cellular responses to extracellular
signals. They control critical cellular functions
including differentiation, proliferation, migration, and
apoptosis. They are also implicated in the pathogenesis
of many diseases including multiple types of cancer,
stroke, diabetes, and chronic inflammation. Typical MAPK
pathways involve a triple kinase core cascade comprising
of the MAPK, which is phosphorylated and activated by a
MAPK kinase (MAP2K or MKK), which itself is
phosphorylated and activated by a MAPK kinase kinase
(MAP3K or MKKK). Each cascade is activated either by a
small GTP-binding protein or by an adaptor protein,
which transmits the signal either directly to a MAP3K to
start the triple kinase core cascade or indirectly
through a mediator kinase, a MAP4K. There are three main
typical MAPK subfamilies: Extracellular signal-Regulated
Kinase (ERK), c-Jun N-terminal Kinase (JNK), and p38.
Some MAPKs are atypical in that they are not regulated
by MAP2Ks. These include MAPK4, MAPK6, NLK, and ERK7.
Length = 330
Score = 31.3 bits (72), Expect = 0.98
Identities = 26/88 (29%), Positives = 43/88 (48%), Gaps = 23/88 (26%)
Query: 432 MLLEELGSGQFGVV------RRGKWRGSIDVAMMKEGTMSEDDFIE------EAKVMTRL 479
LL+ +GSG +GVV R G+ VA+ K+ + DD I+ E K++ L
Sbjct: 3 ELLKPIGSGAYGVVCSAVDKRTGR-----KVAI-KKISNVFDDLIDAKRILREIKLLRHL 56
Query: 480 QHQNLVQLYGV-----CSKHRPIYIVTD 502
+H+N++ L + +YIVT+
Sbjct: 57 RHENIIGLLDILRPPSPEDFNDVYIVTE 84
>gnl|CDD|212904 cd11971, SH3_Abi1, Src homology 3 domain of Abl Interactor 1.
Abi1, also called e3B1, is a central regulator of actin
cytoskeletal reorganization through interactions with
many protein complexes. It is part of WAVE, a
nucleation-promoting factor complex, that links Rac 1
activation to actin polymerization causing lamellipodia
protrusion at the plasma membrane. Abi1 interact with
formins to promote protrusions at the leading edge of
motile cells. It also is a target of alpha4 integrin,
regulating membrane protrusions at sites of integrin
engagement. Abi proteins are adaptor proteins serving as
binding partners and substrates of Abl tyrosine kinases.
They are involved in regulating actin cytoskeletal
reorganization and play important roles in
membrane-ruffling, endocytosis, cell motility, and cell
migration. Abi proteins contain a homeobox homology
domain, a proline-rich region, and a SH3 domain. The SH3
domain of Abi binds to a PxxP motif in Abl. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 59
Score = 28.8 bits (64), Expect = 1.0
Identities = 17/52 (32%), Positives = 27/52 (51%), Gaps = 1/52 (1%)
Query: 128 VVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
VVA+Y + + +LS +GA V+ + W++ NG G P NYV+
Sbjct: 2 VVAIYDYSKDKDDELSFMEGAIIYVIKKNDDGWYE-GVCNGVTGLFPGNYVE 52
>gnl|CDD|173742 cd07845, STKc_CDK10, Catalytic domain of the Serine/Threonine
Kinase, Cyclin-Dependent protein Kinase 10.
Serine/Threonine Kinases (STKs), Cyclin-dependent
protein Kinase 10 (CDK10) subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK10 subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. CDKs belong to a
large family of STKs that are regulated by their cognate
cyclins. Together, they are involved in the control of
cell-cycle progression, transcription, and neuronal
function. CDK10, also called PISSLRE, is essential for
cell growth and proliferation, and acts through the G2/M
phase of the cell cycle. CDK10 has also been identified
as an important factor in endocrine therapy resistance
in breast cancer. CDK10 silencing increases the
transcription of c-RAF and the activation of the p42/p44
MAPK pathway, which leads to antiestrogen resistance.
Patients who express low levels of CDK10 relapse early
on tamoxifen.
Length = 309
Score = 31.6 bits (72), Expect = 1.0
Identities = 19/63 (30%), Positives = 33/63 (52%), Gaps = 6/63 (9%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTM-SEDDFI-----EEAKVMTRLQHQNLVQL 487
L +G G +G+V R + S ++ +K+ M +E D I E ++ L+H N+V+L
Sbjct: 12 LNRIGEGTYGIVYRARDTTSGEIVALKKVRMDNERDGIPISSLREITLLLNLRHPNIVEL 71
Query: 488 YGV 490
V
Sbjct: 72 KEV 74
>gnl|CDD|213007 cd12074, SH3_Tks5_1, First Src homology 3 domain of Tyrosine kinase
substrate with five SH3 domains. Tks5, also called SH3
and PX domain-containing protein 2A (SH3PXD2A) or Five
SH (FISH), is a scaffolding protein and Src substrate
that is localized in podosomes, which are electron-dense
structures found in Src-transformed fibroblasts,
osteoclasts, macrophages, and some invasive cancer
cells. It binds and regulates some members of the ADAMs
family of transmembrane metalloproteases, which function
as sheddases and mediators of cell and matrix
interactions. It is required for podosome formation,
degradation of the extracellular matrix, and cancer cell
invasion. Tks5 contains an N-terminal Phox homology (PX)
domain and five SH3 domains. This model characterizes
the first SH3 domain of Tks5. SH3 domains are protein
interaction domains that bind to proline-rich ligands
with moderate affinity and selectivity, preferentially
to PxxP motifs. They play versatile and diverse roles in
the cell including the regulation of enzymes, changing
the subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 53
Score = 28.5 bits (63), Expect = 1.0
Identities = 15/52 (28%), Positives = 28/52 (53%), Gaps = 3/52 (5%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
VVV+ Y + E ++SL+ G +V++ + WW V G++P+ Y+
Sbjct: 3 VVVSNY--EKQENSEISLQAGEVVDVIEKNESGWWFVSTAEEQ-GWVPATYL 51
>gnl|CDD|212866 cd11933, SH3_Nebulin_C, C-terminal Src Homology 3 domain of
Nebulin. Nebulin is a giant filamentous protein
(600-900 kD) that is expressed abundantly in skeletal
muscle. It binds to actin thin filaments and regulates
its assembly and function. Nebulin was thought to be
part of a molecular ruler complex that is critical in
determining the lengths of actin thin filaments in
skeletal muscle since its length, which varies due to
alternative splicing, correlates with the length of thin
filaments in various muscle types. Recent studies
indicate that nebulin regulates thin filament length by
stabilizing the filaments and preventing
depolymerization. Mutations in nebulin can cause
nemaline myopathy, characterized by muscle weakness
which can be severe and can lead to neonatal lethality.
Nebulin contains an N-terminal LIM domain, many nebulin
repeats/super repeats, and a C-terminal SH3 domain. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 58
Score = 28.4 bits (63), Expect = 1.1
Identities = 14/55 (25%), Positives = 27/55 (49%), Gaps = 1/55 (1%)
Query: 126 KVVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHW-WKVKDKNGSVGYIPSNYVK 179
K A+Y ++A + ++S + G + E W + + G G +P+NYV+
Sbjct: 2 KSFRAMYDYRAADDDEVSFKDGDTIVNVQTIDEGWMYGTVQRTGKTGMLPANYVE 56
>gnl|CDD|173661 cd05570, STKc_PKC, Catalytic domain of the Protein Serine/Threonine
Kinase, Protein Kinase C. Serine/Threonine Kinases
(STKs), Protein Kinase C (PKC) subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The PKC subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. PKCs are
classified into three groups (classical, atypical, and
novel) depending on their mode of activation and the
structural characteristics of their regulatory domain.
PKCs undergo three phosphorylations in order to take
mature forms. In addition, classical PKCs depend on
calcium, DAG (1,2-diacylglycerol), and in most cases,
phosphatidylserine (PS) for activation. Novel PKCs are
calcium-independent, but require DAG and PS for
activity, while atypical PKCs only require PS. PKCs
phosphorylate and modify the activities of a wide
variety of cellular proteins including receptors,
enzymes, cytoskeletal proteins, transcription factors,
and other kinases. They play a central role in signal
transduction pathways that regulate cell migration and
polarity, proliferation, differentiation, and apoptosis.
Also included in this subfamily are the PKC-like
proteins, called PKNs.
Length = 318
Score = 31.2 bits (71), Expect = 1.1
Identities = 22/71 (30%), Positives = 35/71 (49%), Gaps = 8/71 (11%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRGIILEKPKAWYVGD 261
++L+Y + D WA GVL++E G+ P+ E+ ILE Y
Sbjct: 166 EILSYQPYGPAVDWWALGVLLYE-MLAGQSPFEGDDEDELFQS-----ILEDE-VRYPRW 218
Query: 262 MSRQRAESILK 272
+S++ A+SILK
Sbjct: 219 LSKE-AKSILK 228
>gnl|CDD|143378 cd07873, STKc_PCTAIRE1, Catalytic domain of the Serine/Threonine
Kinase, PCTAIRE-1 kinase. Serine/Threonine Kinases
(STKs), PCTAIRE-1 subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The PCTAIRE-1 subfamily is part of a larger superfamily
that includes the catalytic domains of other protein
STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. PCTAIRE-1 shares sequence
similarity with Cyclin-Dependent Kinases (CDKs), which
belong to a large family of STKs that are regulated by
their cognate cyclins. Together, CDKs and cyclins are
involved in the control of cell-cycle progression,
transcription, and neuronal function. PCTAIRE-1 is
expressed ubiquitously and is localized in the
cytoplasm. Its kinase activity is cell cycle dependent
and peaks at the S and G2 phases. PCTAIRE-1 is highly
expressed in the brain and may play a role in regulating
neurite outgrowth. It can also associate with Trap
(Tudor repeat associator with PCTAIRE-2), a
physiological partner of PCTAIRE-2; with p11, a small
dimeric protein with similarity to S100; and with 14-3-3
proteins, mediators of phosphorylation-dependent
interactions in many different proteins.
Length = 301
Score = 31.1 bits (70), Expect = 1.2
Identities = 16/72 (22%), Positives = 38/72 (52%), Gaps = 5/72 (6%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDD-----FIEEAKVMTRLQHQNLVQLY 488
L++LG G + V +G+ + + ++ +KE + ++ I E ++ L+H N+V L+
Sbjct: 11 LDKLGEGTYATVYKGRSKLTDNLVALKEIRLEHEEGAPCTAIREVSLLKDLKHANIVTLH 70
Query: 489 GVCSKHRPIYIV 500
+ + + +V
Sbjct: 71 DIIHTEKSLTLV 82
>gnl|CDD|132947 cd06616, PKc_MKK4, Catalytic domain of the dual-specificity Protein
Kinase, MAP kinase kinase 4. Protein kinases (PKs), MAP
kinase kinase 4 (MKK4) subfamily, catalytic (c) domain.
PKs catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine or tyrosine residues on
protein substrates. The MKK4 subfamily is part of a
larger superfamily that includes the catalytic domains
of other protein serine/threonine kinases, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. The mitogen-activated protein (MAP) kinase
signaling pathways are important mediators of cellular
responses to extracellular signals. The pathways involve
a triple kinase core cascade comprising of the MAP
kinase (MAPK), which is phosphorylated and activated by
a MAPK kinase (MAPKK or MKK), which itself is
phosphorylated and activated by a MAPK kinase kinase
(MAPKKK or MKKK). MKK4 is a dual-specificity PK that
phosphorylates and activates the downstream targets,
c-Jun N-terminal kinase (JNK) and p38 MAPK, on specific
threonine and tyrosine residues. JNK and p38 are
collectively known as stress-activated MAPKs, as they
are activated in response to a variety of environmental
stresses and pro-inflammatory cytokines. Their
activation is associated with the induction of cell
death. Mice deficient in MKK4 die during embryogenesis
and display anemia, severe liver hemorrhage, and
abnormal hepatogenesis. MKK4 may also play roles in the
immune system and in cardiac hypertrophy. It plays a
major role in cancer as a tumor and metastasis
suppressor. Under certain conditions, MKK4 is
pro-oncogenic.
Length = 288
Score = 31.2 bits (71), Expect = 1.2
Identities = 12/22 (54%), Positives = 17/22 (77%), Gaps = 1/22 (4%)
Query: 212 KSDVWAYGVLMWEVFTCGKMPY 233
+SDVW+ G+ ++EV T GK PY
Sbjct: 190 RSDVWSLGITLYEVAT-GKFPY 210
>gnl|CDD|212762 cd11828, SH3_ARHGEF9_like, Src homology 3 domain of ARHGEF9-like
Rho guanine nucleotide exchange factors. Members of
this family contain a SH3 domain followed by RhoGEF
(also called Dbl-homologous or DH) and Pleckstrin
Homology (PH) domains. They include the Rho guanine
nucleotide exchange factors ARHGEF9, ASEF (also called
ARHGEF4), ASEF2, and similar proteins. GEFs activate
small GTPases by exchanging bound GDP for free GTP.
ARHGEF9 specifically activates Cdc42, while both ASEF
and ASEF2 can activate Rac1 and Cdc42. ARHGEF9 is highly
expressed in the brain and it interacts with gephyrin, a
postsynaptic protein associated with GABA and glycine
receptors. ASEF plays a role in angiogenesis and cell
migration. ASEF2 is important in cell migration and
adhesion dynamics. ASEF exists in an autoinhibited form
and is activated upon binding of the tumor suppressor
APC (adenomatous polyposis coli), leading to the
activation of Rac1 or Cdc42. In its autoinhibited form,
the SH3 domain of ASEF forms an extensive interface with
the DH and PH domains, blocking the Rac binding site.
SH3 domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 28.1 bits (63), Expect = 1.2
Identities = 13/52 (25%), Positives = 29/52 (55%), Gaps = 5/52 (9%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWW--KVKDKNGSVGYIPSNYVK 179
AL+ ++ +L + G EV+D + + WW ++D+ G+ P+++V+
Sbjct: 4 ALWDHVTMDPEELGFKAGDVIEVLDMSDKDWWWGSIRDEE---GWFPASFVR 52
>gnl|CDD|132949 cd06618, PKc_MKK7, Catalytic domain of the dual-specificity Protein
Kinase, MAP kinase kinase 7. Protein kinases (PKs), MAP
kinase kinase 7 (MKK7) subfamily, catalytic (c) domain.
PKs catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine or tyrosine residues on
protein substrates. The MKK7 subfamily is part of a
larger superfamily that includes the catalytic domains
of other protein serine/threonine kinases, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. The mitogen-activated protein (MAP) kinase
signaling pathways are important mediators of cellular
responses to extracellular signals. The pathways involve
a triple kinase core cascade comprising the MAP kinase
(MAPK), which is phosphorylated and activated by a MAPK
kinase (MAPKK or MKK), which itself is phosphorylated
and activated by a MAPK kinase kinase (MAPKKK or MKKK).
MKK7 is a dual-specificity PK that phosphorylates and
activates its downstream target, c-Jun N-terminal kinase
(JNK), on specific threonine and tyrosine residues.
Although MKK7 is capable of dual phosphorylation, it
prefers to phosphorylate the threonine residue of JNK.
Thus, optimal activation of JNK requires both MKK4 (not
included in this subfamily) and MKK7. MKK7 is primarily
activated by cytokines. MKK7 is essential for liver
formation during embryogenesis. It plays roles in G2/M
cell cycle arrest and cell growth. In addition, it is
involved in the control of programmed cell death, which
is crucial in oncogenesis, cancer chemoresistance, and
antagonism to TNFalpha-induced killing, through its
inhibition by Gadd45beta and the subsequent suppression
of the JNK cascade.
Length = 296
Score = 31.2 bits (71), Expect = 1.2
Identities = 24/79 (30%), Positives = 35/79 (44%), Gaps = 9/79 (11%)
Query: 423 KWEIDPAELMLLEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDDFIEEAKVMTRLQHQ 482
K+ D +L L E+GSG G V + +++ + V +K M EE K R+
Sbjct: 9 KYPADLNDLENLGEIGSGTCGQVYKMRFKKTGHVMAVK--QMRRTGNKEENK---RI--- 60
Query: 483 NLVQLYGVCSKHRPIYIVT 501
L+ L V H YIV
Sbjct: 61 -LMDLDVVLKSHDCPYIVK 78
>gnl|CDD|173770 cd08528, STKc_Nek10, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 10. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 10 (Nek10)
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
Nek10 subfamily is one of a family of 11 different Neks
(Nek1-11) that are involved in cell cycle control. The
Nek family is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. No function has yet been ascribed to Nek10.
The gene encoding Nek10 is a putative causative gene for
breast cancer; it is located within a breast cancer
susceptibility loci on chromosome 3p24.
Length = 269
Score = 30.9 bits (70), Expect = 1.2
Identities = 23/86 (26%), Positives = 41/86 (47%), Gaps = 16/86 (18%)
Query: 433 LLEELGSGQFGVVRRGKWR-GSIDVAMMKEGTM--------------SEDDFIEEAKVMT 477
+LE LGSG FG V + + + ++ +KE + S D + E ++
Sbjct: 4 VLEHLGSGAFGCVYKVRKKNNGQNLLALKEINVHNPAFGKDKRERDKSIGDIVSEVTIIK 63
Query: 478 -RLQHQNLVQLYGVCSKHRPIYIVTD 502
+L+H N+V+ Y ++ +YIV D
Sbjct: 64 EQLRHPNIVRYYKTFLENDRLYIVMD 89
>gnl|CDD|132953 cd06622, PKc_MAPKK_PBS2_like, Catalytic domain of fungal PBS2-like
dual-specificity MAP kinase kinases. Protein kinases
(PKs), MAP kinase kinase (MAPKK) subfamily, fungal
PBS2-like proteins, catalytic (c) domain. PKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine or tyrosine residues on protein
substrates. The MAPKK subfamily is part of a larger
superfamily that includes the catalytic domains of other
protein serine/threonine kinases, protein tyrosine
kinases, RIO kinases, aminoglycoside phosphotransferase,
choline kinase, and phosphoinositide 3-kinase. The
mitogen-activated protein (MAP) kinase signaling
pathways are important mediators of cellular responses
to extracellular signals. The pathways involve a triple
kinase core cascade comprising of the MAP kinase (MAPK),
which is phosphorylated and activated by a MAPK kinase
(MAPKK or MKK), which itself is phosphorylated and
activated by a MAPK kinase kinase (MAPKKK or MKKK).
Members of this group include the MAPKKs Polymyxin B
resistance protein 2 (PBS2) from Saccharomyces
cerevisiae, Wis1 from Schizosaccharomyces pombe, and
related proteins. PBS2 and Wis1 are components of
stress-activated MAPK cascades in budding and fission
yeast, respectively. PBS2 is the specific activator of
the MAPK Hog1, which plays a central role in the
response of budding yeast to stress including exposure
to arsenite and hyperosmotic environments. Wis1
phosphorylates and activates the MAPK Sty1 (also called
Spc1 or Phh1), which stimulates a transcriptional
response to a wide range of cellular insults through the
bZip transcription factors Atf1, Pcr1, and Pap1.
Length = 286
Score = 31.0 bits (70), Expect = 1.3
Identities = 19/75 (25%), Positives = 33/75 (44%), Gaps = 5/75 (6%)
Query: 430 ELMLLEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDD-----FIEEAKVMTRLQHQNL 484
E+ +L+ELG G +G V + R + MKE + D+ I E ++ + +
Sbjct: 2 EIEVLDELGKGNYGSVYKVLHRPTGVTMAMKEIRLELDESKFNQIIMELDILHKAVSPYI 61
Query: 485 VQLYGVCSKHRPIYI 499
V YG +Y+
Sbjct: 62 VDFYGAFFIEGAVYM 76
>gnl|CDD|212737 cd11803, SH3_Endophilin_A, Src homology 3 domain of Endophilin-A.
Endophilins play roles in synaptic vesicle formation,
virus budding, mitochondrial morphology maintenance,
receptor-mediated endocytosis inhibition, and endosomal
sorting. They are classified into two types, A and B.
Vertebrates contain three endophilin-A isoforms (A1, A2,
and A3). Endophilin-A proteins are enriched in the brain
and play multiple roles in receptor-mediated
endocytosis. They tubulate membranes and regulate
calcium influx into neurons to trigger the activation of
the endocytic machinery. They are also involved in the
sorting of plasma membrane proteins, actin filament
assembly, and the uncoating of clathrin-coated vesicles
for fusion with endosomes. Endophilins contain an
N-terminal N-BAR domain (BAR domain with an additional
N-terminal amphipathic helix), followed by a variable
region containing proline clusters, and a C-terminal SH3
domain. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 55
Score = 28.4 bits (64), Expect = 1.3
Identities = 16/49 (32%), Positives = 26/49 (53%), Gaps = 1/49 (2%)
Query: 130 ALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
ALY F+ G+L ++G + + E+W++ NG G+ P NYV
Sbjct: 5 ALYDFEPENEGELGFKEGDIITLTNQIDENWYE-GMVNGQSGFFPVNYV 52
>gnl|CDD|212857 cd11924, SH3_Vinexin_2, Second Src Homology 3 domain of Vinexin,
also called Sorbin and SH3 domain containing 3 (Sorbs3).
Vinexin is also called Sorbs3, SH3P3, and
SH3-containing adapter molecule 1 (SCAM-1). It is an
adaptor protein containing one sorbin homology (SoHo)
and three SH3 domains. Vinexin was first identified as a
vinculin binding protein; it is co-localized with
vinculin at cell-ECM and cell-cell adhesion sites. There
are several splice variants of vinexin: alpha, which
contains the SoHo and three SH3 domains and displays
tissue-specific expression; and beta, which contains
only the three SH3 domains and is widely expressed.
Vinexin alpha stimulates the accumulation of F-actin at
focal contact sites. Vinexin also promotes keratinocyte
migration and wound healing. The SH3 domains of vinexin
have been reported to bind a number of ligands including
vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are
protein interaction domains that bind to proline-rich
ligands with moderate affinity and selectivity,
preferentially to PxxP motifs. They play versatile and
diverse roles in the cell including the regulation of
enzymes, changing the subcellular localization of
signaling pathway components, and mediating the
formation of multiprotein complex assemblies.
Length = 56
Score = 28.4 bits (63), Expect = 1.3
Identities = 16/52 (30%), Positives = 26/52 (50%), Gaps = 1/52 (1%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVK-DKNGSVGYIPSNYVK 179
VA Y FK +LS KG ++ E+W++ + G G P++YV+
Sbjct: 4 VAQYTFKGDLEVELSFRKGEHICLIRKVNENWYEGRITGTGRQGIFPASYVQ 55
>gnl|CDD|173502 PTZ00266, PTZ00266, NIMA-related protein kinase; Provisional.
Length = 1021
Score = 31.6 bits (71), Expect = 1.4
Identities = 16/51 (31%), Positives = 33/51 (64%), Gaps = 5/51 (9%)
Query: 199 LIHQVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPYGRLKN-TEVVDRVQRG 248
L+H+ +Y KSD+WA G +++E+ + GK P+ + N ++++ ++RG
Sbjct: 213 LLHETKSY---DDKSDMWALGCIIYELCS-GKTPFHKANNFSQLISELKRG 259
>gnl|CDD|143374 cd07869, STKc_PFTAIRE1, Catalytic domain of the Serine/Threonine
Kinase, PFTAIRE-1 kinase. Serine/Threonine Kinases
(STKs), PFTAIRE-1 subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The PFTAIRE-1 subfamily is part of a larger superfamily
that includes the catalytic domains of other protein
STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. PFTAIRE-1 shares sequence
similarity with Cyclin-Dependent Kinases (CDKs), which
belong to a large family of STKs that are regulated by
their cognate cyclins. Together, CDKs and cyclins are
involved in the control of cell-cycle progression,
transcription, and neuronal function. PFTAIRE-1 is
widely expressed except in the spleen and thymus. It is
highly expressed in the brain, heart, pancreas, testis,
and ovary, and is localized in the cytoplasm. It is
regulated by cyclin D3 and is inhibited by the p21 cell
cycle inhibitor. It has also been shown to interact with
the membrane-associated cyclin Y, which recruits the
protein to the plasma membrane.
Length = 303
Score = 30.8 bits (69), Expect = 1.4
Identities = 19/72 (26%), Positives = 37/72 (51%), Gaps = 5/72 (6%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDD-----FIEEAKVMTRLQHQNLVQLY 488
LE+LG G + V +GK + + + +K + E++ I EA ++ L+H N+V L+
Sbjct: 10 LEKLGEGSYATVYKGKSKVNGKLVALKVIRLQEEEGTPFTAIREASLLKGLKHANIVLLH 69
Query: 489 GVCSKHRPIYIV 500
+ + +V
Sbjct: 70 DIIHTKETLTLV 81
>gnl|CDD|212811 cd11878, SH3_Bem1p_1, First Src Homology 3 domain of Bud emergence
protein 1 and similar domains. Members of this
subfamily bear similarity to Saccharomyces cerevisiae
Bem1p, containing two Src Homology 3 (SH3) domains at
the N-terminus, a central PX domain, and a C-terminal
PB1 domain. Bem1p is a scaffolding protein that is
critical for proper Cdc42p activation during bud
formation in yeast. During budding and mating, Bem1p
migrates to the plasma membrane where it can serve as an
adaptor for Cdc42p and some other proteins. Bem1p also
functions as an effector of the G1 cyclin Cln3p and the
cyclin-dependent kinase Cdc28p in promoting vacuolar
fusion. SH3 domains bind to proline-rich ligands with
moderate affinity and selectivity, preferentially to
PxxP motifs; they play a role in the regulation of
enzymes by intramolecular interactions, changing the
subcellular localization of signal pathway components
and mediate multiprotein complex assemblies.
Length = 54
Score = 28.0 bits (63), Expect = 1.5
Identities = 17/53 (32%), Positives = 30/53 (56%), Gaps = 2/53 (3%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVM-DDTQEHWWKVKDK-NGSVGYIPSNY 177
V+ ALY ++A G+LS KG + V+ ++ Q W++ + G G +P +Y
Sbjct: 1 VIRALYDYRAQTPGELSFSKGDFFHVIGEEDQGEWYEATNPVTGKRGLVPKSY 53
>gnl|CDD|143377 cd07872, STKc_PCTAIRE2, Catalytic domain of the Serine/Threonine
Kinase, PCTAIRE-2 kinase. Serine/Threonine Kinases
(STKs), PCTAIRE-2 subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The PCTAIRE-2 subfamily is part of a larger superfamily
that includes the catalytic domains of other protein
STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. PCTAIRE-2 shares sequence
similarity with Cyclin-Dependent Kinases (CDKs), which
belong to a large family of STKs that are regulated by
their cognate cyclins. Together, CDKs and cyclins are
involved in the control of cell-cycle progression,
transcription, and neuronal function. PCTAIRE-2 is
specifically expressed in neurons in the central nervous
system, mainly in terminally differentiated neurons. It
associates with Trap (Tudor repeat associator with
PCTAIRE-2) and could play a role in regulating
mitochondrial function in neurons.
Length = 309
Score = 30.7 bits (69), Expect = 1.6
Identities = 17/72 (23%), Positives = 38/72 (52%), Gaps = 5/72 (6%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDD-----FIEEAKVMTRLQHQNLVQLY 488
LE+LG G + V +G+ + + ++ +KE + ++ I E ++ L+H N+V L+
Sbjct: 11 LEKLGEGTYATVFKGRSKLTENLVALKEIRLEHEEGAPCTAIREVSLLKDLKHANIVTLH 70
Query: 489 GVCSKHRPIYIV 500
+ + + +V
Sbjct: 71 DIVHTDKSLTLV 82
>gnl|CDD|198258 cd10395, SH2_RIN3, Src homology 2 (SH2) domain found in Ras and Rab
interactor 3 (RIN3)-like proteins. RIN3, a member of
the RIN (AKA Ras interaction/interference) family, have
multifunctional domains including SH2 and proline-rich
(PR) domains in the N-terminal region, and RIN-family
homology (RH), VPS9 and Ras-association (RA) domains in
the C-terminal region. RIN proteins function as
Rab5-GEFs. RIN3 stimulated the formation of GTP-bound
Rab31, a Rab5-subfamily GTPase, and formed enlarged
vesicles and tubular structures, where it colocalized
with Rab31. Transferrin appeared to be transported
partly through the RIN3-positive vesicles to early
endosomes. RIN3 interacts via its Pro-rich domain with
amphiphysin II, which contains SH3 domain and
participates in receptor-mediated endocytosis. RIN3, a
Rab5 and Rab31 GEF, plays an important role in the
transport pathway from plasma membrane to early
endosomes. Mutations in the region between the SH2 and
RH domain of RIN3 specifically abolished its GEF action
on Rab31, but not Rab5. RIN3 was also found to partially
translocate the cation-dependent mannose 6-phosphate
receptor from the trans-Golgi network to peripheral
vesicles and that this is dependent on its Rab31-GEF
activity. These data indicate that RIN3 specifically
acts as a GEF for Rab31. In general SH2 domains are
involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 101
Score = 29.4 bits (66), Expect = 1.6
Identities = 17/59 (28%), Positives = 23/59 (38%), Gaps = 7/59 (11%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSSTKGLYTLSLYTKVP----HPHVKHYHIKQ 311
W M++ A IL +E G F+VR S + L P V Y IK+
Sbjct: 12 WLQLGMNQAEAARILHKE-VAGMFLVRRDSN--SKQMVLCVHFPSNESSAEVLEYPIKE 67
>gnl|CDD|212766 cd11832, SH3_Shank, Src homology 3 domain of SH3 and multiple
ankyrin repeat domains (Shank) proteins. Shank proteins
carry scaffolding functions through multiple sites of
protein-protein interaction in its domain architecture,
including ankyrin (ANK) repeats, a long proline rich
region, as well as SH3, PDZ, and SAM domains. They bind
a variety of membrane and cytosolic proteins, and exist
in alternatively spliced isoforms. They are highly
enriched in postsynaptic density (PSD) where they
interact with the cytoskeleton and with postsynaptic
membrane receptors including NMDA and glutamate
receptors. They are crucial in the construction and
organization of the PSD and dendritic spines of
excitatory synapses. There are three members of this
family (Shank1, Shank2, Shank3) which show distinct and
cell-type specific patterns of expression. Shank1 is
brain-specific; Shank2 is found in neurons, glia,
endocrine cells, liver, and kidney; Shank3 is widely
expressed. The SH3 domain of Shank binds GRIP, a
scaffold protein that binds AMPA receptors and Eph
receptors/ligands. SH3 domains are protein interaction
domains that bind to proline-rich ligands with moderate
affinity and selectivity, preferentially to PxxP motifs.
They play versatile and diverse roles in the cell
including the regulation of enzymes, changing the
subcellular localization of signaling pathway
components, and mediating the formation of multiprotein
complex assemblies.
Length = 50
Score = 27.8 bits (62), Expect = 1.6
Identities = 13/47 (27%), Positives = 25/47 (53%), Gaps = 1/47 (2%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPS 175
+A+ + E G++SL KG +V+ + +W+ + G G+ PS
Sbjct: 3 IAVKSYSPQEEGEISLHKGDRVKVLSIGEGGFWEGSVR-GRTGWFPS 48
>gnl|CDD|143376 cd07871, STKc_PCTAIRE3, Catalytic domain of the Serine/Threonine
Kinase, PCTAIRE-3 kinase. Serine/Threonine Kinases
(STKs), PCTAIRE-3 subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The PCTAIRE-3 subfamily is part of a larger superfamily
that includes the catalytic domains of other protein
STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. PCTAIRE-3 shares sequence
similarity with Cyclin-Dependent Kinases (CDKs), which
belong to a large family of STKs that are regulated by
their cognate cyclins. Together, CDKs and cyclins are
involved in the control of cell-cycle progression,
transcription, and neuronal function. PCTAIRE-3 shows a
restricted pattern of expression and is present in
brain, kidney, and intestine. It is elevated in
Alzheimer's disease (AD) and has been shown to associate
with paired helical filaments (PHFs) and stimulate Tau
phosphorylation. As AD progresses, phosphorylated Tau
aggregates and forms PHFs, which leads to the formation
of neurofibrillary tangles (NFTs). In human glioma
cells, PCTAIRE-3 induces cell cycle arrest and cell
death.
Length = 288
Score = 30.8 bits (69), Expect = 1.7
Identities = 17/72 (23%), Positives = 38/72 (52%), Gaps = 5/72 (6%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDD-----FIEEAKVMTRLQHQNLVQLY 488
L++LG G + V +G+ + + ++ +KE + ++ I E ++ L+H N+V L+
Sbjct: 10 LDKLGEGTYATVFKGRSKLTENLVALKEIRLEHEEGAPCTAIREVSLLKNLKHANIVTLH 69
Query: 489 GVCSKHRPIYIV 500
+ R + +V
Sbjct: 70 DIIHTERCLTLV 81
>gnl|CDD|213019 cd12143, SH3_ARHGAP9, Src Homology 3 domain of Rho
GTPase-activating protein 9 and similar proteins. Rho
GTPase-activating proteins (RhoGAPs or ARHGAPs) bind to
Rho proteins and enhance the hydrolysis rates of bound
GTP. ARHGAP9 functions as a GAP for Rac and Cdc42, but
not for RhoA. It negatively regulates cell migration and
adhesion. It also acts as a docking protein for the MAP
kinases Erk2 and p38alpha, and may facilitate cross-talk
between the Rho GTPase and MAPK pathways to control
actin remodeling. It contains SH3, WW, Pleckstin
homology (PH), and RhoGAP domains. SH3 domains bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs; they play a
role in the regulation of enzymes by intramolecular
interactions, changing the subcellular localization of
signal pathway components and mediate multiprotein
complex assemblies.
Length = 57
Score = 28.0 bits (62), Expect = 1.8
Identities = 10/50 (20%), Positives = 23/50 (46%), Gaps = 4/50 (8%)
Query: 132 YPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVG----YIPSNY 177
Y + +G +S+ +G + ++ T WW+V+ ++P+ Y
Sbjct: 8 YQYTGADGRQVSIAEGERFLLLRKTNSDWWQVRRLEAPSTSRPLFVPATY 57
>gnl|CDD|116824 pfam08239, SH3_3, Bacterial SH3 domain.
Length = 52
Score = 27.9 bits (63), Expect = 1.8
Identities = 13/37 (35%), Positives = 21/37 (56%), Gaps = 2/37 (5%)
Query: 143 SLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYVK 179
L KG + V+ + W+K++ NG GY+ S+YV
Sbjct: 18 QLPKGTKVTVLGEENG-WYKIE-YNGKTGYVSSDYVS 52
>gnl|CDD|198279 cd10416, SH2_SH2D2A, Src homology 2 domain found in the SH2 domain
containing protein 2A (SH2D2A). SH2D2A contains a
single SH2 domain. In general SH2 domains are involved
in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 102
Score = 29.2 bits (65), Expect = 1.8
Identities = 13/46 (28%), Positives = 26/46 (56%), Gaps = 1/46 (2%)
Query: 249 IILEKPKAWYVGDMSRQRAESILKQEDKEGCFVVRNSSTKGLYTLS 294
+ AW+ G ++R+ AE +L + +GC++VR S + + L+
Sbjct: 1 LQHGAAPAWFHGFITRREAERLL-EPKPQGCYLVRFSESAVTFVLT 45
>gnl|CDD|173672 cd05581, STKc_PDK1, Catalytic domain of the Protein
Serine/Threonine Kinase, Phosphoinositide-dependent
kinase 1. Serine/Threonine Kinases (STKs),
Phosphoinositide-dependent kinase 1 (PDK1) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The PDK1 subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase (PI3K). PDK1
carries an N-terminal catalytic domain and a C-terminal
pleckstrin homology (PH) domain that binds
phosphoinositides. It phosphorylates the activation loop
of AGC kinases that are regulated by PI3K such as PKB,
SGK, and PKC, among others, and is crucial for their
activation. Thus, it contributes in regulating many
processes including metabolism, growth, proliferation,
and survival. PDK1 also has the ability to
autophosphorylate and is constitutively active in
mammalian cells. PDK1 is essential for normal embryo
development and is important in regulating cell volume.
Length = 280
Score = 30.6 bits (70), Expect = 1.9
Identities = 11/31 (35%), Positives = 19/31 (61%), Gaps = 1/31 (3%)
Query: 203 VLNYTRFSSKSDVWAYGVLMWEVFTCGKMPY 233
+LN SD+WA G +++++ T GK P+
Sbjct: 193 LLNEKPAGKSSDLWALGCIIYQMLT-GKPPF 222
>gnl|CDD|212763 cd11829, SH3_GAS7, Src homology 3 domain of Growth Arrest Specific
protein 7. GAS7 is mainly expressed in the brain and is
required for neurite outgrowth. It may also play a role
in the protection and migration of embryonic stem cells.
Treatment-related acute myeloid leukemia (AML) has been
reported resulting from mixed-lineage leukemia
(MLL)-GAS7 translocations as a complication of primary
cancer treatment. GAS7 contains an N-terminal SH3
domain, followed by a WW domain, and a central F-BAR
domain. SH3 domains are protein interaction domains that
bind to proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 52
Score = 27.9 bits (62), Expect = 2.0
Identities = 16/50 (32%), Positives = 24/50 (48%), Gaps = 2/50 (4%)
Query: 130 ALYPFKAIEGGD-LSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
LY F + LS E G V+ WW+ +K+G G+ P++YV
Sbjct: 4 TLYAFTGEQHQQGLSFEAGELIRVLQAPDGGWWE-GEKDGLRGWFPASYV 52
>gnl|CDD|143342 cd07837, STKc_CdkB_plant, Catalytic domain of the Serine/Threonine
Kinase, Plant B-type Cyclin-Dependent protein Kinase.
Serine/Threonine Kinases (STKs), Plant B-type
Cyclin-Dependent protein Kinase (CdkB) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CdkB subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. CDKs belong to a
large family of STKs that are regulated by their cognate
cyclins. Together, they are involved in the control of
cell-cycle progression, transcription, and neuronal
function. The plant-specific B-type CDKs are expressed
from the late S to the M phase of the cell cycle. They
are characterized by the cyclin binding motif
PPT[A/T]LRE. They play a role in controlling mitosis and
integrating developmental pathways, such as stomata and
leaf development. CdkB has been shown to associate with
both cyclin B, which controls G2/M transition, and
cyclin D, which acts as a mediator in linking
extracellular signals to the cell cycle.
Length = 295
Score = 30.5 bits (69), Expect = 2.0
Identities = 8/22 (36%), Positives = 14/22 (63%)
Query: 28 CIQVCKGMAYLERHNYIHRETK 49
Q+ KG+A+ +H +HR+ K
Sbjct: 116 MYQLLKGVAHCHKHGVMHRDLK 137
>gnl|CDD|173772 cd08530, STKc_CNK2-like, Catalytic domain of the Protein
Serine/Threonine Kinase, Chlamydomonas reinhardtii CNK2,
and similar domains. Serine/Threonine Kinases (STKs),
Chlamydomonas reinhardtii Never In Mitosis gene A
(NIMA)-related kinase 1 (CNK2)-like subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Chlamydomonas
reinhardtii CNK2-like subfamily belongs to the
(NIMA)-related kinase (Nek) family. The Nek family
includes seven different Chlamydomonas Neks (CNKs 1-6
and Fa2). This subfamily includes CNK1, and -2. The Nek
family is part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. Chlamydomonas reinhardtii CNK2 has both
cilliary and cell cycle functions. It influences
flagellar length through promoting flagellar
disassembly, and it regulates cell size, through
influencing the size threshold at which cells commit to
mitosis.
Length = 256
Score = 30.1 bits (68), Expect = 2.1
Identities = 14/40 (35%), Positives = 24/40 (60%), Gaps = 1/40 (2%)
Query: 209 FSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRG 248
+S KSD+W+ G L++E+ T P+ ++ +VQRG
Sbjct: 178 YSYKSDIWSLGCLLYEMAT-FAPPFEARSMQDLRYKVQRG 216
>gnl|CDD|198253 cd10390, SH2_SHD, Src homology 2 domain found in SH2
domain-containing adapter proteins D (SHD). The
expression of SHD is restricted to the brain. SHD may be
a physiological substrate of c-Abl and may function as
an adapter protein in the central nervous system. It is
also thought to be involved in apoptotic regulation. SHD
contains five YXXP motifs, a substrate sequence
preferred by Abl tyrosine kinases, in addition to a
poly-proline rich region and a C-terminal SH2 domain. In
general SH2 domains are involved in signal transduction.
They typically bind pTyr-containing ligands via two
surface pockets, a pTyr and hydrophobic binding pocket,
allowing proteins with SH2 domains to localize to
tyrosine phosphorylated sites.
Length = 98
Score = 28.9 bits (64), Expect = 2.2
Identities = 20/59 (33%), Positives = 33/59 (55%), Gaps = 2/59 (3%)
Query: 255 KAWYVGDMSRQRAESILKQEDKEGCFVVRNSSTKGL-YTLSLYTKVPHPHVKHYHIKQN 312
+ W+ G +SR AE++L KEG ++VR S T+ +LSL + H+K ++N
Sbjct: 1 QPWFHGPLSRADAENLLSL-CKEGSYLVRLSETRPQDCSLSLRSSQGFLHLKFARTREN 58
>gnl|CDD|212750 cd11816, SH3_Eve1_3, Third Src homology 3 domain of ADAM-binding
protein Eve-1. Eve-1, also called SH3 domain-containing
protein 19 (SH3D19) or EEN-binding protein (EBP), exists
in multiple alternatively spliced isoforms. The longest
isoform contains five SH3 domain in the C-terminal
region and seven proline-rich motifs in the N-terminal
region. It is abundantly expressed in skeletal muscle
and heart, and may be involved in regulating the
activity of ADAMs (A disintegrin and metalloproteases).
Eve-1 interacts with EEN, an endophilin involved in
endocytosis and may be the target of the MLL-EEN fusion
protein that is implicated in leukemogenesis. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 51
Score = 27.4 bits (61), Expect = 2.6
Identities = 15/50 (30%), Positives = 25/50 (50%), Gaps = 1/50 (2%)
Query: 129 VALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
VA + F+ + +LS +G + + E W K + NG +G P N+V
Sbjct: 3 VARFDFEGEQEDELSFSEGDVITLKEYVGEEWAK-GELNGKIGIFPLNFV 51
>gnl|CDD|212990 cd12057, SH3_CIN85_3, Third Src Homology 3 domain (SH3C) of
Cbl-interacting protein of 85 kDa. CIN85, also called
SH3 domain-containing kinase-binding protein 1 (SH3KBP1)
or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor
protein that is involved in the downregulation of
receptor tyrosine kinases by facilitating endocytosis
through interaction with endophilin-associated ubiquitin
ligase Cbl proteins. It is also important in many other
cellular processes including vesicle-mediated transport,
cytoskeletal remodelling, apoptosis, cell adhesion and
migration, and viral infection, among others. CIN85
exists as multiple variants from alternative splicing;
the main variant contains three SH3 domains, a
proline-rich region, and a C-terminal coiled-coil
domain. All of these domains enable CIN85 to bind
various protein partners and assemble complexes that
have been implicated in many different functions. This
alignment model represents the third SH3 domain (SH3C)
of CIN85. SH3C has been shown to bind ubiquitin. SH3
domains are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 56
Score = 27.6 bits (61), Expect = 2.8
Identities = 15/51 (29%), Positives = 28/51 (54%), Gaps = 3/51 (5%)
Query: 131 LYPFKAIEGGDLSLEKGAEYEVM--DDTQEHWWKVKDKNGSVGYIPSNYVK 179
L+P++A +L++++G ++ D WW+ + NG G P N+VK
Sbjct: 5 LFPYEAQNEDELTIKEGDIVTLISKDCIDAGWWE-GELNGRRGVFPDNFVK 54
>gnl|CDD|132938 cd06607, STKc_TAO, Catalytic domain of the Protein Serine/Threonine
Kinase, Thousand-and-one amino acids proteins.
Serine/threonine kinases (STKs), thousand-and-one amino
acids (TAO) subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The TAO subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. TAO proteins possess mitogen-activated protein
kinase (MAPK) kinase kinase (MAPKKK or MAP3K or MKKK)
activity. They activate the MAPKs, p38 and c-Jun
N-terminal kinase (JNK), by phosphorylating and
activating the respective MAP/ERK kinases (MEKs, also
known as MKKs or MAPKKs), MEK3/MEK6 and MKK4/MKK7. MAPK
signaling cascades are important in mediating cellular
responses to extracellular signals. Vertebrates contain
three TAO subfamily members, named TAO1, TAO2, and TAO3.
Length = 307
Score = 30.2 bits (68), Expect = 2.8
Identities = 23/84 (27%), Positives = 36/84 (42%), Gaps = 11/84 (13%)
Query: 414 PATAGLSHDKWEIDPAELML-LEELGSGQFGVV---RRGKWRGSIDVAMM----KEGTMS 465
P A L DP +L L E+G G FG V R + + + M K+
Sbjct: 2 PEIAELFSKD---DPEKLFTDLREIGHGSFGAVYFARDVRTNEVVAIKKMSYSGKQSNEK 58
Query: 466 EDDFIEEAKVMTRLQHQNLVQLYG 489
D I+E + + +L+H N ++ G
Sbjct: 59 WQDIIKEVRFLQQLRHPNTIEYKG 82
Score = 28.6 bits (64), Expect = 7.4
Identities = 10/23 (43%), Positives = 14/23 (60%)
Query: 27 MCIQVCKGMAYLERHNYIHRETK 49
+C +G+AYL H IHR+ K
Sbjct: 120 ICHGALQGLAYLHSHERIHRDIK 142
>gnl|CDD|132967 cd06636, STKc_MAP4K4_6, Catalytic domain of the Protein
Serine/Threonine Kinases, Mitogen-Activated Protein
Kinase Kinase Kinase Kinase 4 and 6. Serine/threonine
kinases (STKs), mitogen-activated protein kinase (MAPK)
kinase kinase kinase 4 (MAPKKKK4 or MAP4K4) and MAPKKKK6
(or MAP4K6) subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The MAP4K4/MAP4K6 subfamily is part of a larger
superfamily that includes the catalytic domains of other
protein STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. Members of this subfamily
contain an N-terminal catalytic domain and a C-terminal
citron homology (CNH) regulatory domain. MAP4Ks (or
MAPKKKKs) are involved in MAPK signaling pathways that
are important in mediating cellular responses to
extracellular signals by activating a MAPK kinase kinase
(MAPKKK or MAP3K or MKKK). Each MAPK cascade is
activated either by a small GTP-binding protein or by an
adaptor protein, which transmits the signal either
directly to a MAP3K to start the triple kinase core
cascade or indirectly through a mediator kinase, a
MAP4K. MAP4K4 is also called Nck Interacting kinase
(NIK). It facilitates the activation of the MAPKs,
extracellular signal-regulated kinase (ERK) 1, ERK2, and
c-Jun N-terminal kinase (JNK), by phosphorylating and
activating MEKK1. MAP4K4 plays a role in tumor necrosis
factor (TNF) alpha-induced insulin resistance. MAP4K4
silencing in skeletal muscle cells from type II diabetic
patients restores insulin-mediated glucose uptake.
MAP4K4, through JNK, also plays a broad role in cell
motility, which impacts inflammation, homeostasis, as
well as the invasion and spread of cancer. MAP4K4 is
found to be highly expressed in most tumor cell lines
relative to normal tissue. MAP4K6 (also called MINK for
Misshapen/NIKs-related kinase) is activated after Ras
induction and mediates activation of p38 MAPK. MAP4K6
plays a role in cell cycle arrest, cytoskeleton
organization, cell adhesion, and cell motility.
Length = 282
Score = 30.0 bits (67), Expect = 2.9
Identities = 23/76 (30%), Positives = 40/76 (52%), Gaps = 7/76 (9%)
Query: 427 DPAELM-LLEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDDFIEEAKVMTRL-----Q 480
DPA + L+E +G+G +G V +G+ + +A +K ++ED+ EE K+ +
Sbjct: 13 DPAGIFELVEVVGNGTYGQVYKGRHVKTGQLAAIKVMDVTEDEE-EEIKLEINMLKKYSH 71
Query: 481 HQNLVQLYGVCSKHRP 496
H+N+ YG K P
Sbjct: 72 HRNIATYYGAFIKKSP 87
>gnl|CDD|140293 PTZ00267, PTZ00267, NIMA-related protein kinase; Provisional.
Length = 478
Score = 30.0 bits (67), Expect = 3.0
Identities = 13/41 (31%), Positives = 26/41 (63%), Gaps = 1/41 (2%)
Query: 208 RFSSKSDVWAYGVLMWEVFTCGKMPYGRLKNTEVVDRVQRG 248
R+S K+D+W+ GV+++E+ T + P+ E++ +V G
Sbjct: 247 RYSKKADMWSLGVILYELLTLHR-PFKGPSQREIMQQVLYG 286
>gnl|CDD|225023 COG2112, COG2112, Predicted Ser/Thr protein kinase [Signal
transduction mechanisms].
Length = 201
Score = 29.7 bits (67), Expect = 3.0
Identities = 16/58 (27%), Positives = 25/58 (43%)
Query: 423 KWEIDPAELMLLEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDDFIEEAKVMTRLQ 480
E EL + +EL G VV G+WRG ++ + +EAK++ L
Sbjct: 16 NVEEGKYELRVEKELAKGTTSVVYLGEWRGGEVALKVRRRDSPRRNLEKEAKILEILA 73
>gnl|CDD|212888 cd11955, SH3_srGAP1-3, Src homology 3 domain of Slit-Robo GTPase
Activating Proteins 1, 2, and 3. srGAP1, also called
Rho GTPase-Activating Protein 13 (ARHGAP13), is a Cdc42-
and RhoA-specific GAP and is expressed later in the
development of central nervous system tissues. srGAP2 is
expressed in zones of neuronal differentiation. It plays
a role in the regeneration of neurons and axons. srGAP3,
also called MEGAP (MEntal disorder associated
GTPase-Activating Protein), is a Rho GAP with activity
towards Rac1 and Cdc42. It impacts cell migration by
regulating actin and microtubule cytoskeletal dynamics.
The association between srGAP3 haploinsufficiency and
mental retardation is under debate. srGAPs are Rho GAPs
that interact with Robo1, the transmembrane receptor of
Slit proteins. Slit proteins are secreted proteins that
control axon guidance and the migration of neurons and
leukocytes. srGAPs contain an N-terminal F-BAR domain, a
Rho GAP domain, and a C-terminal SH3 domain. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 27.2 bits (60), Expect = 3.1
Identities = 12/38 (31%), Positives = 20/38 (52%), Gaps = 1/38 (2%)
Query: 141 DLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNYV 178
+LS +KGA + + WW+ + NG G +P Y+
Sbjct: 15 ELSFKKGASLLLYHRASDDWWEGR-HNGIDGLVPHQYI 51
>gnl|CDD|198276 cd10413, SH2_Grb7, Src homology 2 (SH2) domain found in the growth
factor receptor bound, subclass 7 (Grb7) proteins. The
Grb family binds to the epidermal growth factor receptor
(EGFR, erbB1) via their SH2 domains. Grb7 is part of the
Grb7 family of proteins which also includes Grb10, and
Grb14. They are composed of an N-terminal Proline-rich
domain, a Ras Associating-like (RA) domain, a Pleckstrin
Homology (PH) domain, a phosphotyrosine interaction
region (PIR, BPS) and a C-terminal SH2 domain. The SH2
domains of Grb7, Grb10 and Grb14 preferentially bind to
a different RTK. Grb7 binds strongly to the erbB2
receptor, unlike Grb10 and Grb14 which bind weakly to
it. Grb7 family proteins are phosphorylated on
serine/threonine as well as tyrosine residues. In
general SH2 domains are involved in signal transduction.
They typically bind pTyr-containing ligands via two
surface pockets, a pTyr and hydrophobic binding pocket,
allowing proteins with SH2 domains to localize to
tyrosine phosphorylated sites.
Length = 108
Score = 28.3 bits (63), Expect = 3.3
Identities = 19/62 (30%), Positives = 35/62 (56%), Gaps = 7/62 (11%)
Query: 251 LEKPKAWYVGDMSRQRAESILKQEDK-EGCFVVRNS--STKGLYTLSLYTKVPHPHVKHY 307
+ + + W+ G +SR+ ++ ++ Q+ +G F+VR S + +G + LSL VKHY
Sbjct: 1 IHRTQPWFHGRISREESQRLIGQQGLVDGVFLVRESQRNPQG-FVLSL---CHLQKVKHY 56
Query: 308 HI 309
I
Sbjct: 57 LI 58
>gnl|CDD|173663 cd05572, STKc_cGK_PKG, Catalytic domain of the Protein
Serine/Threonine Kinase, cGMP-dependent protein kinase.
Serine/Threonine Kinases (STKs), cGMP-dependent protein
kinase (cGK or PKG) subfamily, catalytic (c) domain.
STKs catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The cGK subfamily is part of a larger
superfamily that includes the catalytic domains of other
protein STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. Mammals have two cGK isoforms
from different genes, cGKI and cGKII. cGKI exists as two
splice variants, cGKI-alpha and cGKI-beta. cGK consists
of an N-terminal regulatory domain containing a
dimerization and an autoinhibitory pseudosubstrate
region, two cGMP-binding domains, and a C-terminal
catalytic domain. Binding of cGMP to both binding sites
releases the inhibition of the catalytic center by the
pseudosubstrate region, allowing autophosphorylation and
activation of the kinase. cGKI is a soluble protein
expressed in all smooth muscles, platelets, cerebellum,
and kidney. It is also expressed at lower concentrations
in other tissues. cGKII is a membrane-bound protein that
is most abundantly expressed in the intestine. It is
also present in the brain nuclei, adrenal cortex,
kidney, lung, and prostate. cGKI is involved in the
regulation of smooth muscle tone, smooth cell
proliferation, and platelet activation. cGKII plays a
role in the regulation of secretion, such as renin
secretion by the kidney and aldosterone secretion by the
adrenal. It also regulates bone growth and the circadian
rhythm.
Length = 262
Score = 29.5 bits (67), Expect = 3.4
Identities = 8/22 (36%), Positives = 14/22 (63%), Gaps = 1/22 (4%)
Query: 213 SDVWAYGVLMWEVFTCGKMPYG 234
D W+ G+L++E G+ P+G
Sbjct: 173 VDYWSLGILLYE-LLTGRPPFG 193
>gnl|CDD|212948 cd12015, SH3_Tks_1, First Src homology 3 domain of Tyrosine kinase
substrate (Tks) proteins. Tks proteins are Src
substrates and scaffolding proteins that play important
roles in the formation of podosomes and invadopodia, the
dynamic actin-rich structures that are related to cell
migration and cancer cell invasion. Vertebrates contain
two Tks proteins, Tks4 (Tyr kinase substrate with four
SH3 domains) and Tks5 (Tyr kinase substrate with five
SH3 domains), which display partially overlapping but
non-redundant functions. Both associate with the ADAMs
family of transmembrane metalloproteases, which function
as sheddases and mediators of cell and matrix
interactions. Tks5 interacts with N-WASP and Nck, while
Tks4 is essential for the localization of MT1-MMP
(membrane-type 1 matrix metalloproteinase) to
invadopodia. Tks proteins contain an N-terminal Phox
homology (PX) domain and four or five SH3 domains. This
model characterizes the first SH3 domain of Tks
proteins. SH3 domains are protein interaction domains
that bind to proline-rich ligands with moderate affinity
and selectivity, preferentially to PxxP motifs. They
play versatile and diverse roles in the cell including
the regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 53
Score = 27.0 bits (60), Expect = 3.5
Identities = 16/51 (31%), Positives = 26/51 (50%), Gaps = 3/51 (5%)
Query: 127 VVVALYPFKAIEGGDLSLEKGAEYEVMDDTQEHWWKVKDKNGSVGYIPSNY 177
VVVA Y K + ++SL G +V++ + WW V G++P+ Y
Sbjct: 3 VVVADY--KKQQPNEISLRAGDVVDVIEKNENGWWFV-SLEDEQGWVPATY 50
>gnl|CDD|212953 cd12020, SH3_Tks5_5, Fifth (C-terminal) Src homology 3 domain of
Tyrosine kinase substrate with five SH3 domains. Tks5,
also called SH3 and PX domain-containing protein 2A
(SH3PXD2A) or Five SH (FISH), is a scaffolding protein
and Src substrate that is localized in podosomes, which
are electron-dense structures found in Src-transformed
fibroblasts, osteoclasts, macrophages, and some invasive
cancer cells. It binds and regulates some members of the
ADAMs family of transmembrane metalloproteases, which
function as sheddases and mediators of cell and matrix
interactions. It is required for podosome formation,
degradation of the extracellular matrix, and cancer cell
invasion. Tks5 contains an N-terminal Phox homology (PX)
domain and five SH3 domains. This model characterizes
the fifth (C-terminal) SH3 domain of Tks5. SH3 domains
are protein interaction domains that bind to
proline-rich ligands with moderate affinity and
selectivity, preferentially to PxxP motifs. They play
versatile and diverse roles in the cell including the
regulation of enzymes, changing the subcellular
localization of signaling pathway components, and
mediating the formation of multiprotein complex
assemblies.
Length = 57
Score = 27.2 bits (60), Expect = 3.6
Identities = 12/43 (27%), Positives = 23/43 (53%), Gaps = 3/43 (6%)
Query: 142 LSLEKGAEYEVMDDTQEHWWKVKDKNGSV---GYIPSNYVKEK 181
++G EV++ WW + +G G++PSNY+++K
Sbjct: 15 AGFQEGVSMEVLEKNPNGWWYCQILDGVKPFKGWVPSNYLEKK 57
>gnl|CDD|132961 cd06630, STKc_MEKK1, Catalytic domain of the Protein
Serine/Threonine Kinase, MAP/ERK kinase kinase 1.
Serine/threonine kinases (STKs), MAP/ERK kinase kinase 1
(MEKK1) subfamily, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MEKK1 subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. MEKK1 is a mitogen-activated protein kinase
(MAPK) kinase kinase (MAPKKK or MKKK or MAP3K), that
phosphorylates and activates MAPK kinases (MAPKKs or
MKKs or MAP2Ks), which in turn phosphorylate and
activate MAPKs during signaling cascades that are
important in mediating cellular responses to
extracellular signals. MEKK1 activates the extracellular
signal-regulated kinase 1/2 (ERK1/2) and c-Jun
N-terminal kinase (JNK) pathways by activating their
respective MAPKKs, MEK1/2 and MKK4/MKK7, respectively.
MEKK1 is important in regulating cell survival and
apoptosis. MEKK1 also plays a role in cell migration,
tissue maintenance and homeostasis, and wound healing.
Length = 268
Score = 29.4 bits (66), Expect = 3.7
Identities = 8/22 (36%), Positives = 14/22 (63%)
Query: 28 CIQVCKGMAYLERHNYIHRETK 49
Q+ +G++YL + IHR+ K
Sbjct: 109 TEQLLRGLSYLHENQIIHRDVK 130
>gnl|CDD|173723 cd06605, PKc_MAPKK, Catalytic domain of the dual-specificity
Protein Kinase, Mitogen-Activated Protein Kinase Kinase.
Protein kinases (PKs), MAP kinase kinase (MAPKK)
subfamily, catalytic (c) domain. PKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine or tyrosine residues on protein
substrates. The MAPKK subfamily is part of a larger
superfamily that includes the catalytic domains of other
protein serine/threonine kinases, protein tyrosine
kinases, RIO kinases, aminoglycoside phosphotransferase,
choline kinase, and phosphoinositide 3-kinase. The
mitogen-activated protein (MAP) kinase signaling
pathways are important mediators of cellular responses
to extracellular signals. The pathways involve a triple
kinase core cascade comprising the MAP kinase (MAPK),
which is phosphorylated and activated by a MAPK kinase
(MAPKK or MKK or MAP2K), which itself is phosphorylated
and activated by a MAPK kinase kinase (MAPKKK or MKKK or
MAP3K). MAPKKs are dual-specificity PKs that
phosphorylate their downstream targets, MAPKs, at
specific threonine and tyrosine residues. There are
three MAPK subfamilies: extracellular signal-regulated
kinase (ERK), c-Jun N-terminal kinase (JNK), and p38. In
mammalian cells, there are seven MAPKKs (named MKK1-7)
and 20 MAPKKKs. Each MAPK subfamily can be activated by
at least two cognate MAPKKs and by multiple MAPKKKs.
Length = 265
Score = 29.6 bits (67), Expect = 3.8
Identities = 18/52 (34%), Positives = 27/52 (51%), Gaps = 3/52 (5%)
Query: 1 MRHGSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAYL-ERHNYIHRETKKS 51
M GSL L+ + + + L + + V KG+ YL E+H IHR+ K S
Sbjct: 81 MDGGSLDKILKEVQGRIPERI--LGKIAVAVLKGLTYLHEKHKIIHRDVKPS 130
Score = 29.2 bits (66), Expect = 4.5
Identities = 17/75 (22%), Positives = 32/75 (42%), Gaps = 5/75 (6%)
Query: 430 ELMLLEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDD-----FIEEAKVMTRLQHQNL 484
+L L ELG+G GVV + R + + +K + ++ + E ++ + +
Sbjct: 2 DLEYLGELGAGNSGVVSKVLHRPTGKIMAVKTIRLEINEAIQKQILRELDILHKCNSPYI 61
Query: 485 VQLYGVCSKHRPIYI 499
V YG + I I
Sbjct: 62 VGFYGAFYNNGDISI 76
>gnl|CDD|218164 pfam04595, Pox_I6, Poxvirus I6-like family. This family includes
I6 proteins as well as the related F5L proteins.
Length = 320
Score = 29.6 bits (67), Expect = 4.0
Identities = 11/47 (23%), Positives = 17/47 (36%), Gaps = 4/47 (8%)
Query: 35 MAYLERHNYIHRETKKSLYPSSLNEISFILWPDQMIRPKVVVALYPF 81
L RH + ++ +N S P P V++ YPF
Sbjct: 101 KDLLSRHGILDLNLSQTDKEVEINRFSL---PGSR-TPVCVISFYPF 143
>gnl|CDD|181146 PRK07851, PRK07851, acetyl-CoA acetyltransferase; Provisional.
Length = 406
Score = 29.6 bits (67), Expect = 4.1
Identities = 16/38 (42%), Positives = 21/38 (55%), Gaps = 6/38 (15%)
Query: 4 GSLLNYLRRHENTLGGNVGLLLDMCIQVCKGMAY-LER 40
+LLN L+ H+ T G L MC+ +GMA LER
Sbjct: 372 TTLLNNLQTHDKTFG-----LETMCVGGGQGMAMVLER 404
>gnl|CDD|173725 cd06608, STKc_myosinIII_like, Catalytic domain of Class III
myosin-like Protein Serine/Threonine Kinases.
Serine/threonine kinases (STKs), Class III myosin-like
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
class III myosin-like subfamily is part of a larger
superfamily that includes the catalytic domains of other
protein STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. Class III myosins are motor
proteins with an N-terminal kinase catalytic domain and
a C-terminal actin-binding motor domain. Class III
myosins are present in the photoreceptors of
invertebrates and vertebrates and in the auditory hair
cells of mammals. The kinase domain of myosin III can
phosphorylate several cytoskeletal proteins,
conventional myosin regulatory light chains, and can
autophosphorylate the C-terminal motor domain. Myosin
III may play an important role in maintaining the
structural integrity of photoreceptor cell microvilli.
It may also function as a cargo carrier during
light-dependent translocation, in photoreceptor cells,
of proteins such as transducin and arrestin. The
Drosophila class III myosin, called NinaC (Neither
inactivation nor afterpotential protein C), is critical
in normal adaptation and termination of photoresponse.
Vertebrates contain two isoforms of class III myosin,
IIIA and IIIB. This subfamily also includes mammalian
NIK-like embryo-specific kinase (NESK), Traf2- and
Nck-interacting kinase (TNIK), mitogen-activated protein
kinase (MAPK) kinase kinase kinase 4 (MAPKKKK4 or
MAP4K4) and MAPKKKK6 (or MAP4K6). MAP4Ks are involved in
some MAPK signaling pathways by activating a MAPK kinase
kinase (MAPKKK or MAP3K or MKKK). Each MAPK cascade is
activated either by a small GTP-binding protein or by an
adaptor protein, which transmits the signal either
directly to a MAP3K to start the triple kinase core
cascade or indirectly through a mediator kinase, a
MAP4K. MAPK signaling cascades are important in
mediating cellular responses to extracellular signals.
Length = 275
Score = 29.2 bits (66), Expect = 5.3
Identities = 21/76 (27%), Positives = 36/76 (47%), Gaps = 7/76 (9%)
Query: 427 DPAELM-LLEELGSGQFGVVRRGKWR--GSIDVAM--MKEGTMSEDDFIEEAKVMTRL-Q 480
DP + L+E +G G +G V + + + G + VA+ M E++ EE ++ +
Sbjct: 3 DPTGIFELVEVIGEGTYGKVYKARHKKTGQL-VAIKIMDIIEDEEEEIKEEYNILRKYSN 61
Query: 481 HQNLVQLYGVCSKHRP 496
H N+ YG K P
Sbjct: 62 HPNIATFYGAFIKKNP 77
Score = 28.8 bits (65), Expect = 5.9
Identities = 8/22 (36%), Positives = 13/22 (59%)
Query: 28 CIQVCKGMAYLERHNYIHRETK 49
+ +G+AYL + IHR+ K
Sbjct: 119 LRETLRGLAYLHENKVIHRDIK 140
>gnl|CDD|143349 cd07844, STKc_PCTAIRE_like, Catalytic domain of PCTAIRE-like
Serine/Threonine Kinases. Serine/Threonine Kinases
(STKs), PCTAIRE-like subfamily, catalytic (c) domain.
STKs catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The PCTAIRE-like subfamily is part of a
larger superfamily that includes the catalytic domains
of other protein STKs, protein tyrosine kinases, RIO
kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. Members of this
subfamily share sequence similarity with
Cyclin-Dependent Kinases (CDKs), which belong to a large
family of STKs that are regulated by their cognate
cyclins. Together, CDKs and cyclins are involved in the
control of cell-cycle progression, transcription, and
neuronal function. The association of PCTAIRE-like
proteins with cyclins has not been widely studied,
although PFTAIRE-1 has been shown to function as a CDK
which is regulated by cyclin D3 as well as the
membrane-associated cyclin Y. PCTAIRE-like proteins show
unusual expression patterns with high levels in
post-mitotic tissues, suggesting that they may be
involved in regulating post-mitotic cellular events.
Length = 291
Score = 29.3 bits (66), Expect = 5.3
Identities = 16/60 (26%), Positives = 33/60 (55%), Gaps = 5/60 (8%)
Query: 434 LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDD-----FIEEAKVMTRLQHQNLVQLY 488
L++LG G + V +G+ + + + +KE + ++ I EA ++ L+H N+V L+
Sbjct: 10 LDKLGEGSYATVYKGRSKLTGQLVALKEIRLEHEEGAPFTAIREASLLKDLKHANIVTLH 69
>gnl|CDD|173730 cd06624, STKc_ASK, Catalytic domain of the Protein Serine/Threonine
Kinase, Apoptosis signal-regulating kinase.
Serine/threonine kinases (STKs), Apoptosis
signal-regulating kinase (ASK) subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The ASK subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. Subfamily members
are mitogen-activated protein kinase (MAPK) kinase
kinases (MAPKKKs or MKKKs or MAP3Ks) and include ASK1,
ASK2, and MAPKKK15. MAPKKKs phosphorylate and activate
MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn
phosphorylate and activate MAPKs during signaling
cascades that are important in mediating cellular
responses to extracellular signals. ASK1 (also called
MAPKKK5) functions in the c-Jun N-terminal kinase (JNK)
and p38 MAPK signaling pathways by directly activating
their respective MAPKKs, MKK4/MKK7 and MKK3/MKK6. It
plays important roles in cytokine and stress responses,
as well as in reactive oxygen species (ROS)-mediated
cellular responses. ASK1 is implicated in various
diseases mediated by oxidative stress including
inschemic heart disease, hypertension, vessel injury,
brain ischemia, Fanconi anemia, asthma, and pulmonary
edema, among others. ASK2 (also called MAPKKK6)
functions only in a heteromeric complex with ASK1, and
can activate ASK1 by direct phosphorylation. The
function of MAPKKK15 is still unknown.
Length = 268
Score = 29.0 bits (65), Expect = 5.6
Identities = 17/67 (25%), Positives = 32/67 (47%), Gaps = 4/67 (5%)
Query: 437 LGSGQFGVVRRGKWRGSIDVAMMKEGTMSEDDFI----EEAKVMTRLQHQNLVQLYGVCS 492
LG G +G+V + + +KE + ++ EE + + L+H+N+VQ G S
Sbjct: 16 LGKGTYGIVYAARDLSTQVRIAIKEIPERDSRYVQPLHEEIALHSYLKHRNIVQYLGSDS 75
Query: 493 KHRPIYI 499
++ I
Sbjct: 76 ENGFFKI 82
>gnl|CDD|198270 cd10407, SH2_Vav3, Src homology 2 (SH2) domain found in the Vav3
proteins. Proto-oncogene vav is a member of the Dbl
family of guanine nucleotide exchange factors (GEF) for
the Rho family of GTP binding proteins. All vavs are
activated by tyrosine phosphorylation leading to their
activation. There are three Vav mammalian family
members: Vav1 which is expressed in the hematopoietic
system, and Vav2 and Vav3 are more ubiquitously
expressed. Vav3 preferentially activates RhoA, RhoG and,
to a lesser extent, Rac1. Alternatively spliced
transcript variants encoding different isoforms have
been described for this gene. VAV3 has been shown to
interact with Grb2. Vav proteins are involved in several
processes that require cytoskeletal reorganization, such
as the formation of the immunological synapse (IS),
phagocytosis, platelet aggregation, spreading, and
transformation. Vavs function as guanine nucleotide
exchange factors (GEFs) for the Rho/Rac family of
GTPases. Vav family members have several conserved
motifs/domains including: a leucine-rich region, a
leucine-zipper, a calponin homology (CH) domain, an
acidic domain, a Dbl-homology (DH) domain, a pleckstrin
homology (PH) domain, a cysteine-rich domain, 2 SH3
domains, a proline-rich region, and a SH2 domain. Vavs
are the only known Rho GEFs that have both the DH/PH
motifs and SH2/SH3 domains in the same protein. The
leucine-rich helix-loop-helix (HLH) domain is thought to
be involved in protein heterodimerization with other HLH
proteins and it may function as a negative regulator by
forming inactive heterodimers. The CH domain is usually
involved in the association with filamentous actin, but
in Vav it controls NFAT stimulation, Ca2+ mobilization,
and its transforming activity. Acidic domains are
involved in protein-protein interactions and contain
regulatory tyrosines. The DH domain is a GDP-GTP
exchange factor on Rho/Rac GTPases. The PH domain in
involved in interactions with GTP-binding proteins,
lipids and/or phosphorylated serine/threonine residues.
The SH3 domain is involved in localization of proteins
to specific sites within the cell interacting with
protein with proline-rich sequences. The SH2 domain
mediates a high affinity interaction with tyrosine
phosphorylated proteins. In general SH2 domains are
involved in signal transduction. They typically bind
pTyr-containing ligands via two surface pockets, a pTyr
and hydrophobic binding pocket, allowing proteins with
SH2 domains to localize to tyrosine phosphorylated
sites.
Length = 103
Score = 27.7 bits (61), Expect = 6.1
Identities = 17/64 (26%), Positives = 26/64 (40%), Gaps = 6/64 (9%)
Query: 257 WYVGDMSRQRAESILKQEDKEGCFVVRNSSTKGLYTLSLYTKVPHPHVK------HYHIK 310
WY G M R +AE+ L V + G Y +S+ H+K +HI
Sbjct: 7 WYAGAMERLQAETELINRVNSTYLVRHRTKESGEYAISIKYNNEVKHIKILTRDGFFHIA 66
Query: 311 QNSR 314
+N +
Sbjct: 67 ENRK 70
>gnl|CDD|183880 PRK13184, pknD, serine/threonine-protein kinase; Reviewed.
Length = 932
Score = 29.4 bits (66), Expect = 6.5
Identities = 12/30 (40%), Positives = 18/30 (60%)
Query: 469 FIEEAKVMTRLQHQNLVQLYGVCSKHRPIY 498
F+ EAK+ L H +V +Y +CS P+Y
Sbjct: 49 FLREAKIAADLIHPGIVPVYSICSDGDPVY 78
>gnl|CDD|182774 PRK10846, PRK10846, bifunctional folylpolyglutamate synthase/
dihydrofolate synthase; Provisional.
Length = 416
Score = 28.9 bits (65), Expect = 7.1
Identities = 13/34 (38%), Positives = 18/34 (52%)
Query: 390 VNYHRHNSGGLASRLKTSPCDRPVPATAGLSHDK 423
V ++ H + L RLK P + V A G+ HDK
Sbjct: 303 VAHNPHAAEYLTGRLKALPKNGRVLAVIGMLHDK 336
>gnl|CDD|132973 cd06642, STKc_STK25-YSK1, Catalytic domain of the Protein
Serine/Threonine Kinase, STK25 or Yeast
Sps1/Ste20-related kinase 1. Serine/threonine kinases
(STKs), STK25 subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The STK25 subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. STK25 is also called Ste20/oxidant stress
response kinase 1 (SOK1) or yeast Sps1/Ste20-related
kinase 1 (YSK1). STK25 is localized in the Golgi
apparatus through its interaction with the Golgi matrix
protein GM130. It may play a role in the regulation of
cell migration and polarization. STK25 binds and
phosphorylates CCM3 (cerebral cavernous malformation 3),
also called PCD10 (programmed cell death 10), and may
play a role in apoptosis. Human STK25 is a candidate
gene responsible for pseudopseudohypoparathyroidism
(PPHP), a disease that shares features with the Albright
hereditary osteodystrophy (AHO) phenotype.
Length = 277
Score = 28.9 bits (64), Expect = 7.2
Identities = 22/82 (26%), Positives = 39/82 (47%), Gaps = 6/82 (7%)
Query: 427 DPAELML-LEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSE-----DDFIEEAKVMTRLQ 480
DP EL LE +G G FG V +G + +V +K + E +D +E V+++
Sbjct: 1 DPEELFTKLERIGKGSFGEVYKGIDNRTKEVVAIKIIDLEEAEDEIEDIQQEITVLSQCD 60
Query: 481 HQNLVQLYGVCSKHRPIYIVTD 502
+ + YG K ++I+ +
Sbjct: 61 SPYITRYYGSYLKGTKLWIIME 82
>gnl|CDD|132968 cd06637, STKc_TNIK, Catalytic domain of the Protein
Serine/Threonine Kinase, Traf2- and Nck-interacting
kinase. Serine/threonine kinases (STKs), Traf2- and
Nck-interacting kinase (TNIK) subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The TNIK subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. Members of this
subfamily contain an N-terminal catalytic domain and a
C-terminal citron homology (CNH) regulatory domain,
similar to mitogen-activated protein kinase (MAPK),
kinase kinase kinase 4 (MAP4K4), and MAP4K6. MAP4Ks
participate in some MAPK signaling pathways by
activating a MAPK kinase kinase (MAPKKK or MAP3K or
MKKK). TNIK is an effector of Rap2, a small GTP-binding
protein from the Ras family. TNIK specifically activates
the c-Jun N-terminal kinase (JNK) pathway and plays a
role in regulating the actin cytoskeleton.
Length = 272
Score = 28.5 bits (63), Expect = 7.9
Identities = 20/75 (26%), Positives = 40/75 (53%), Gaps = 5/75 (6%)
Query: 427 DPAELM-LLEELGSGQFGVVRRGKWRGSIDVAMMKEGTMS---EDDFIEEAKVMTRL-QH 481
DPA + L+E +G+G +G V +G+ + +A +K ++ E++ +E ++ + H
Sbjct: 3 DPAGIFELVELVGNGTYGQVYKGRHVKTGQLAAIKVMDVTGDEEEEIKQEINMLKKYSHH 62
Query: 482 QNLVQLYGVCSKHRP 496
+N+ YG K P
Sbjct: 63 RNIATYYGAFIKKNP 77
>gnl|CDD|173721 cd05632, STKc_GRK5, Catalytic domain of the Protein
Serine/Threonine Kinase, G protein-coupled Receptor
Kinase 5. Serine/Threonine Kinases (STKs), G
protein-coupled Receptor Kinase (GRK) subfamily, GRK5
isoform, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The GRK
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. GRKs phosphorylate and regulate G
protein-coupled receptors (GPCRs), the largest
superfamily of cell surface receptors which regulate
some part of nearly all physiological functions.
Phosphorylated GPCRs bind to arrestins, which prevents
further G protein signaling despite the presence of
activating ligand. There are seven types of GRKs, named
GRK1 to GRK7. GRK5 is widely expressed in many tissues.
It associates with the membrane though an N-terminal
PIP2 binding domain and also binds phospholipids via its
C-terminus. GRK5 deficiency is associated with early
Alzheimer's disease in humans and mouse models. GRK5
also plays a crucial role in the pathogenesis of
sporadic Parkinson's disease. It participates in the
regulation and desensitization of PDGFRbeta, a receptor
tyrosine kinase involved in a variety of downstream
cellular effects including cell growth, chemotaxis,
apoptosis, and angiogenesis. GRK5 also regulates
Toll-like receptor 4, which is involved in innate and
adaptive immunity.
Length = 285
Score = 28.4 bits (63), Expect = 8.2
Identities = 16/49 (32%), Positives = 26/49 (53%), Gaps = 5/49 (10%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPY----GRLKNTEVVDRVQ 246
+VLN R++ D W G L++E+ G+ P+ ++K EV RV
Sbjct: 171 EVLNNQRYTLSPDYWGLGCLIYEMIE-GQSPFRGRKEKVKREEVDRRVL 218
>gnl|CDD|132972 cd06641, STKc_MST3, Catalytic domain of the Protein
Serine/Threonine Kinase, Mammalian Ste20-like protein
kinase 3. Serine/threonine kinases (STKs), mammalian
Ste20-like protein kinase 3 (MST3) subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MST3 subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. MST3
phosphorylates the STK NDR and may play a role in cell
cycle progression and cell morphology. It may also
regulate paxillin and consequently, cell migration. MST3
is present in human placenta, where it plays an
essential role in the oxidative stress-induced apoptosis
of trophoblasts in normal spontaneous delivery.
Dysregulation of trophoblast apoptosis may result in
pregnancy complications such as preeclampsia and
intrauterine growth retardation.
Length = 277
Score = 28.5 bits (63), Expect = 8.3
Identities = 21/82 (25%), Positives = 40/82 (48%), Gaps = 6/82 (7%)
Query: 427 DPAELML-LEELGSGQFGVVRRG-----KWRGSIDVAMMKEGTMSEDDFIEEAKVMTRLQ 480
DP EL LE++G G FG V +G + +I + ++E +D +E V+++
Sbjct: 1 DPEELFTKLEKIGKGSFGEVFKGIDNRTQKVVAIKIIDLEEAEDEIEDIQQEITVLSQCD 60
Query: 481 HQNLVQLYGVCSKHRPIYIVTD 502
+ + YG K ++I+ +
Sbjct: 61 SPYVTKYYGSYLKDTKLWIIME 82
>gnl|CDD|143375 cd07870, STKc_PFTAIRE2, Catalytic domain of the Serine/Threonine
Kinase, PFTAIRE-2 kinase. Serine/Threonine Kinases
(STKs), PFTAIRE-2 subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The PFTAIRE-2 subfamily is part of a larger superfamily
that includes the catalytic domains of other protein
STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. PFTAIRE-2 shares sequence
similarity with Cyclin-Dependent Kinases (CDKs), which
belong to a large family of STKs that are regulated by
their cognate cyclins. Together, CDKs and cyclins are
involved in the control of cell-cycle progression,
transcription, and neuronal function. PFTAIRE-2 is also
referred to as ALS2CR7 (amyotrophic lateral sclerosis 2
(juvenile) chromosome region candidate 7). It may be
associated with amyotrophic lateral sclerosis 2 (ALS2),
an autosomal recessive form of juvenile ALS. The
function of PFTAIRE-2 is not yet known.
Length = 291
Score = 28.4 bits (63), Expect = 8.6
Identities = 19/60 (31%), Positives = 32/60 (53%), Gaps = 5/60 (8%)
Query: 3 HGSLLNYLRRHENTLGG-NVGLLLDMCIQVCKGMAYLERHNYIHRETK-KSLYPSSLNEI 60
H L Y+ +H L NV L + Q+ +G+AY+ + +HR+ K ++L S L E+
Sbjct: 86 HTDLAQYMIQHPGGLHPYNVRLFM---FQLLRGLAYIHGQHILHRDLKPQNLLISYLGEL 142
>gnl|CDD|173706 cd05615, STKc_cPKC_alpha, Catalytic domain of the Protein
Serine/Threonine Kinase, Classical Protein Kinase C
alpha. Serine/Threonine Kinases (STKs), Classical
Protein Kinase C (cPKC) subfamily, alpha isoform,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The cPKC subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. PKCs are
classified into three groups (classical, atypical, and
novel) depending on their mode of activation and the
structural characteristics of their regulatory domain.
PKCs undergo three phosphorylations in order to take
mature forms. In addition, cPKCs depend on calcium, DAG
(1,2-diacylglycerol), and in most cases,
phosphatidylserine (PS) for activation. There are four
cPKC isoforms, named alpha, betaI, betaII, and gamma.
PKC-alpha is expressed in many tissues and is associated
with cell proliferation, apoptosis, and cell motility.
It plays a role in the signaling of the growth factors
PDGF, VEGF, EGF, and FGF. Abnormal levels of PKC-alpha
have been detected in many transformed cell lines and
several human tumors. In addition, PKC-alpha is required
for HER2 dependent breast cancer invasion.
Length = 323
Score = 28.4 bits (63), Expect = 9.2
Identities = 11/32 (34%), Positives = 20/32 (62%), Gaps = 1/32 (3%)
Query: 202 QVLNYTRFSSKSDVWAYGVLMWEVFTCGKMPY 233
+++ Y + D WAYGVL++E+ G+ P+
Sbjct: 171 EIIAYQPYGKSVDWWAYGVLLYEMLA-GQPPF 201
>gnl|CDD|140289 PTZ00263, PTZ00263, protein kinase A catalytic subunit;
Provisional.
Length = 329
Score = 28.2 bits (63), Expect = 9.8
Identities = 18/85 (21%), Positives = 35/85 (41%), Gaps = 9/85 (10%)
Query: 423 KWEIDPAELMLLEELGSGQFGVVRRGKWRGSIDVAMMKEGTMSE-------DDFIEEAKV 475
W++ ++ + E LG+G FG VR K +G+ + +K E +E +
Sbjct: 14 SWKL--SDFEMGETLGTGSFGRVRIAKHKGTGEYYAIKCLKKREILKMKQVQHVAQEKSI 71
Query: 476 MTRLQHQNLVQLYGVCSKHRPIYIV 500
+ L H +V + +Y +
Sbjct: 72 LMELSHPFIVNMMCSFQDENRVYFL 96
Database: CDD.v3.10
Posted date: Mar 20, 2013 7:55 AM
Number of letters in database: 10,937,602
Number of sequences in database: 44,354
Lambda K H
0.319 0.136 0.422
Gapped
Lambda K H
0.267 0.0700 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 26,093,847
Number of extensions: 2535195
Number of successful extensions: 3121
Number of sequences better than 10.0: 1
Number of HSP's gapped: 2843
Number of HSP's successfully gapped: 767
Length of query: 513
Length of database: 10,937,602
Length adjustment: 101
Effective length of query: 412
Effective length of database: 6,457,848
Effective search space: 2660633376
Effective search space used: 2660633376
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.4 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.7 bits)
S2: 61 (27.3 bits)