RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy14019
(124 letters)
>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 = 146 bits (370), Expect = 2e-44
Identities = 58/89 (65%), Positives = 66/89 (74%), Gaps = 1/89 (1%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLP-TPQTTK 84
KFTTKSDVW+FGVTLWEIL L R +PYE LTD +V+EN H DDG IYLP P K
Sbjct: 208 KFTTKSDVWAFGVTLWEILTLCREQPYEHLTDQQVIENAGHFFRDDGRQIYLPRPPNCPK 267
Query: 85 DILDLMNECWKRSPTERPSFTEIHLFLQR 113
DI +LM ECW+R +RP+F EIHLFLQR
Sbjct: 268 DIYELMLECWRRDEEDRPTFREIHLFLQR 296
>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 = 107 bits (270), Expect = 6e-30
Identities = 43/117 (36%), Positives = 58/117 (49%), Gaps = 19/117 (16%)
Query: 7 LMRDLTNGRIFKNKNS------------LHRKFTTKSDVWSFGVTLWEILNLARHRPYEG 54
L RDL + +K K KFT+KSDVWSFGV LWEI L PY G
Sbjct: 149 LSRDLYDDDYYKVKGGKLPIRWMAPESLKEGKFTSKSDVWSFGVLLWEIFTLGE-EPYPG 207
Query: 55 LTDLEVLENISHLHADDGEFIYLPTPQTTKDILDLMNECWKRSPTERPSFTEIHLFL 111
+++ EVLE + G + P P ++ LM +CW P +RP+F+E+ L
Sbjct: 208 MSNAEVLEYL-----KKGYRLPKP-PNCPPELYKLMLQCWAEDPEDRPTFSELVEIL 258
>gnl|CDD|197581 smart00219, TyrKc, Tyrosine kinase, catalytic domain.
Phosphotransferases. Tyrosine-specific kinase subfamily.
Length = 257
Score = 106 bits (266), Expect = 2e-29
Identities = 42/117 (35%), Positives = 61/117 (52%), Gaps = 19/117 (16%)
Query: 7 LMRDLTNGRIFKNKNS------------LHRKFTTKSDVWSFGVTLWEILNLARHRPYEG 54
L RDL + ++ + KFT+KSDVWSFGV LWEI L +PY G
Sbjct: 148 LSRDLYDDDYYRKRGGKLPIRWMAPESLKEGKFTSKSDVWSFGVLLWEIFTLGE-QPYPG 206
Query: 55 LTDLEVLENISHLHADDGEFIYLPTPQTTKDILDLMNECWKRSPTERPSFTEIHLFL 111
+++ EVLE + +G + P P ++ DLM +CW P +RP+F+E+ L
Sbjct: 207 MSNEEVLEYL-----KNGYRLPQP-PNCPPELYDLMLQCWAEDPEDRPTFSELVEIL 257
>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 = 105 bits (263), Expect = 1e-28
Identities = 47/88 (53%), Positives = 56/88 (63%), Gaps = 1/88 (1%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
KFTT SDVW+FGVTLWEIL L + +PY L+D +V+EN D G +YLP P D
Sbjct: 208 KFTTASDVWAFGVTLWEILTLCKEQPYSQLSDEQVIENTGEFFRDQGRQVYLPKPALCPD 267
Query: 86 IL-DLMNECWKRSPTERPSFTEIHLFLQ 112
L LM CW+R+ ERPSF EIH L
Sbjct: 268 SLYKLMLSCWRRNAKERPSFQEIHATLL 295
>gnl|CDD|219530 pfam07714, Pkinase_Tyr, Protein tyrosine kinase.
Length = 258
Score = 103 bits (259), Expect = 3e-28
Identities = 39/89 (43%), Positives = 55/89 (61%), Gaps = 9/89 (10%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQ-T 82
KFT+KSDVWSFGV LWEI L +PY G+++ EVLE + +DG LP P+
Sbjct: 178 DGKFTSKSDVWSFGVLLWEIFTLGE-QPYPGMSNEEVLELL-----EDGY--RLPRPENC 229
Query: 83 TKDILDLMNECWKRSPTERPSFTEIHLFL 111
++ +LM +CW P +RP+F+E+ L
Sbjct: 230 PDELYELMLQCWAYDPEDRPTFSELVEDL 258
>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 = 99.5 bits (249), Expect = 9e-27
Identities = 38/90 (42%), Positives = 52/90 (57%), Gaps = 9/90 (10%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQ-T 82
FT+KSDVWSFGV LWEI L PY GL++ EVLE + G LP P+
Sbjct: 181 DGIFTSKSDVWSFGVLLWEIFTLGAT-PYPGLSNEEVLEYLR-----KGYR--LPKPEYC 232
Query: 83 TKDILDLMNECWKRSPTERPSFTEIHLFLQ 112
++ +LM CW+ P +RP+F+E+ L+
Sbjct: 233 PDELYELMLSCWQLDPEDRPTFSELVERLE 262
>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 = 96.5 bits (240), Expect = 3e-25
Identities = 45/87 (51%), Positives = 57/87 (65%), Gaps = 1/87 (1%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTT-K 84
KFTT SDVW+FGVTLWEIL L + +PY LTD +V+EN D G +YL P +
Sbjct: 216 KFTTASDVWAFGVTLWEILMLCKEQPYGELTDEQVIENAGEFFRDQGRQVYLFRPPPCPQ 275
Query: 85 DILDLMNECWKRSPTERPSFTEIHLFL 111
+ +LM +CW R ERPSF++IH FL
Sbjct: 276 GLYELMLQCWSRDCRERPSFSDIHAFL 302
>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 = 93.9 bits (233), Expect = 2e-24
Identities = 41/87 (47%), Positives = 53/87 (60%), Gaps = 1/87 (1%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLP-TPQTTK 84
KFTT SDVW+FGVTLWE+ L + +PY L+D +V+EN + G IYL TP
Sbjct: 207 KFTTASDVWAFGVTLWEMFTLCKEQPYSLLSDEQVIENTGEFFRNQGRQIYLSQTPLCPS 266
Query: 85 DILDLMNECWKRSPTERPSFTEIHLFL 111
+ LM CW R +RP+F +IH FL
Sbjct: 267 PVFKLMMRCWSRDIKDRPTFNKIHHFL 293
>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 = 92.8 bits (231), Expect = 4e-24
Identities = 41/89 (46%), Positives = 55/89 (61%), Gaps = 9/89 (10%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
FTTKSDVWSFGV LWE+ LA +PY+GL++ EVL+ + DG +L P+ D
Sbjct: 197 VFTTKSDVWSFGVVLWEMATLAE-QPYQGLSNEEVLKFVI-----DGG--HLDLPENCPD 248
Query: 86 IL-DLMNECWKRSPTERPSFTEIHLFLQR 113
L +LM CW+ +P RP+F EI L+
Sbjct: 249 KLLELMRMCWQYNPKMRPTFLEIVSSLKD 277
>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 = 85.1 bits (211), Expect = 3e-21
Identities = 34/92 (36%), Positives = 56/92 (60%), Gaps = 11/92 (11%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIY-LPTPQT 82
+RKFT+ SDVWSFG+ +WE+++ RPY +++ +V++ + +DG Y LP P
Sbjct: 182 YRKFTSASDVWSFGIVMWEVMSYGE-RPYWDMSNQDVIKAV-----EDG---YRLPPPMD 232
Query: 83 TKDIL-DLMNECWKRSPTERPSFTEIHLFLQR 113
L LM +CW++ ERP+F++I L +
Sbjct: 233 CPSALYQLMLDCWQKDRNERPTFSQIVSTLDK 264
>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 = 83.2 bits (206), Expect = 1e-20
Identities = 33/89 (37%), Positives = 49/89 (55%), Gaps = 8/89 (8%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQ-T 82
R F+ SDVW FGVTLWE+ P+ GL+ ++L+ I D E L P+
Sbjct: 174 TRTFSHASDVWMFGVTLWEMFTYGE-EPWAGLSGSQILKKI------DKEGERLERPEAC 226
Query: 83 TKDILDLMNECWKRSPTERPSFTEIHLFL 111
+DI ++M +CW +P +RP+F + FL
Sbjct: 227 PQDIYNVMLQCWAHNPADRPTFAALREFL 255
>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 = 83.3 bits (206), Expect = 2e-20
Identities = 40/91 (43%), Positives = 56/91 (61%), Gaps = 9/91 (9%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
++RKFTT+SDVWSFGV LWEI + +P+ GL++ EV+E I G L P+T
Sbjct: 197 MYRKFTTESDVWSFGVVLWEIFTYGK-QPWYGLSNEEVIECI-----TQG--RLLQRPRT 248
Query: 83 -TKDILDLMNECWKRSPTERPSFTEIHLFLQ 112
++ D+M CWKR P +R + +IH LQ
Sbjct: 249 CPSEVYDIMLGCWKRDPQQRINIKDIHERLQ 279
>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 = 82.8 bits (205), Expect = 2e-20
Identities = 37/91 (40%), Positives = 52/91 (57%), Gaps = 9/91 (9%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
+ +FT KSDVWSFG+ L EI+ R PY G+T+ EVLE + + +P P
Sbjct: 177 NYGRFTIKSDVWSFGILLTEIVTYGR-VPYPGMTNREVLEQVERGY-------RMPRPPN 228
Query: 83 TKDIL-DLMNECWKRSPTERPSFTEIHLFLQ 112
+ L DLM +CW + P ERP+F + FL+
Sbjct: 229 CPEELYDLMLQCWDKDPEERPTFEYLQSFLE 259
>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 = 82.2 bits (203), Expect = 5e-20
Identities = 34/93 (36%), Positives = 53/93 (56%), Gaps = 11/93 (11%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLP--TP 80
+ ++TT+SDVW++GV LWEI + +PY G+ EV+ + DG + P P
Sbjct: 205 FYNRYTTESDVWAYGVVLWEIFSYGM-QPYYGMAHEEVIY-----YVRDGNVLSCPDNCP 258
Query: 81 QTTKDILDLMNECWKRSPTERPSFTEIHLFLQR 113
++ +LM CW + P++RPSF I+ LQR
Sbjct: 259 L---ELYNLMRLCWSKLPSDRPSFASINRILQR 288
>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 = 81.2 bits (201), Expect = 8e-20
Identities = 32/90 (35%), Positives = 47/90 (52%), Gaps = 9/90 (10%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTK 84
KF++KSDVWS+GVTLWE + +PY + EV+ + LP P+
Sbjct: 173 GKFSSKSDVWSYGVTLWEAFSYGA-KPYGEMKGAEVIAMLESGER-------LPRPEECP 224
Query: 85 D-ILDLMNECWKRSPTERPSFTEIHLFLQR 113
I +M CWK P +RP+F+E+ +R
Sbjct: 225 QEIYSIMLSCWKYRPEDRPTFSELESTFRR 254
>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 = 80.7 bits (199), Expect = 1e-19
Identities = 39/87 (44%), Positives = 48/87 (55%), Gaps = 7/87 (8%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
KFTT+SDVWSFGV +WEIL L +PY L + EVL+ H G + P
Sbjct: 189 KFTTQSDVWSFGVLMWEILTLG-QQPYPALNNQEVLQ-----HVTAGGRLQKP-ENCPDK 241
Query: 86 ILDLMNECWKRSPTERPSFTEIHLFLQ 112
I LM CW + P+ERP+F I LQ
Sbjct: 242 IYQLMTNCWAQDPSERPTFDRIQEILQ 268
>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 = 79.4 bits (196), Expect = 4e-19
Identities = 29/85 (34%), Positives = 50/85 (58%), Gaps = 7/85 (8%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
+ +F++KSDVWSFGV +WE+ + + PYE ++ EV+E++S G +Y P
Sbjct: 174 DYSRFSSKSDVWSFGVLMWEVFSEGK-MPYERFSNSEVVESVSA-----GYRLYRPK-LA 226
Query: 83 TKDILDLMNECWKRSPTERPSFTEI 107
++ +M CW P +RP+F ++
Sbjct: 227 PTEVYTIMYSCWHEKPEDRPAFKKL 251
>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 = 78.6 bits (194), Expect = 9e-19
Identities = 33/83 (39%), Positives = 48/83 (57%), Gaps = 9/83 (10%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
L+ +F+ KSDVWSFG+ L EI+ R PY G+T+ EVL+ + + +P P
Sbjct: 177 LYNRFSIKSDVWSFGILLTEIVTYGR-MPYPGMTNAEVLQQVDQGYR-------MPCPPG 228
Query: 83 TKDIL-DLMNECWKRSPTERPSF 104
L D+M +CWK P +RP+F
Sbjct: 229 CPKELYDIMLDCWKEDPDDRPTF 251
>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 = 75.9 bits (187), Expect = 8e-18
Identities = 33/86 (38%), Positives = 50/86 (58%), Gaps = 9/86 (10%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
LHR +T KSDVWS+GVT+WE++ +PYEG+ +E+ + + GE LP P
Sbjct: 184 LHRIYTHKSDVWSYGVTVWELMTFGA-KPYEGIPAVEIPD-----LLEKGE--RLPQPPI 235
Query: 83 -TKDILDLMNECWKRSPTERPSFTEI 107
T D+ ++ +CW RP+F E+
Sbjct: 236 CTIDVYMVLVKCWMIDAESRPTFKEL 261
>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 = 75.2 bits (185), Expect = 2e-17
Identities = 37/82 (45%), Positives = 47/82 (57%), Gaps = 8/82 (9%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDI 86
F+TKSDVWSFGV +WE+ P+ GL+D EVL L A E LP P+
Sbjct: 195 FSTKSDVWSFGVLMWEVFTQGE-LPFYGLSDEEVLNR---LQAGKLE---LPVPEGCPSR 247
Query: 87 L-DLMNECWKRSPTERPSFTEI 107
L LM CW +P +RPSF+E+
Sbjct: 248 LYKLMTRCWAVNPKDRPSFSEL 269
>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 = 73.9 bits (181), Expect = 4e-17
Identities = 38/92 (41%), Positives = 54/92 (58%), Gaps = 9/92 (9%)
Query: 22 SLHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQ 81
+L+ +FT KSDVWSFG+ L E++ R PY G+ + EVLE + + +P PQ
Sbjct: 175 ALYGRFTIKSDVWSFGILLTELVTKGR-VPYPGMVNREVLEQVERGYR-------MPCPQ 226
Query: 82 TTKDIL-DLMNECWKRSPTERPSFTEIHLFLQ 112
+ L +LM CWK+ P ERP+F I FL+
Sbjct: 227 GCPESLHELMKLCWKKDPDERPTFEYIQSFLE 258
>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 = 73.5 bits (180), Expect = 8e-17
Identities = 35/92 (38%), Positives = 52/92 (56%), Gaps = 9/92 (9%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
L+RKFTT+SD+WSFGV LWEI + +P+ L++ E +E I+ L P+T
Sbjct: 197 LYRKFTTESDIWSFGVVLWEIFTYGK-QPWYQLSNTEAIECITQGRE-------LERPRT 248
Query: 83 T-KDILDLMNECWKRSPTERPSFTEIHLFLQR 113
++ +M CW+R P +R +IH LQ
Sbjct: 249 CPPEVYAIMQGCWQREPQQRMVIKDIHSRLQA 280
>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 = 72.5 bits (178), Expect = 2e-16
Identities = 35/84 (41%), Positives = 51/84 (60%), Gaps = 9/84 (10%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTK 84
R+FT+ SDVW FGV +WEIL L +P++G+ + +V I + ++GE LP P
Sbjct: 183 RRFTSASDVWMFGVCMWEILMLGV-KPFQGVKNNDV---IGRI--ENGE--RLPMPPNCP 234
Query: 85 DIL-DLMNECWKRSPTERPSFTEI 107
L LM +CW P++RP FTE+
Sbjct: 235 PTLYSLMTKCWAYDPSKRPRFTEL 258
>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 = 72.1 bits (177), Expect = 3e-16
Identities = 37/87 (42%), Positives = 48/87 (55%), Gaps = 9/87 (10%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
L+ KFTT+SD+WSFGV LWEI + +PY G ++ EV+E I LP P+
Sbjct: 199 LYGKFTTESDIWSFGVVLWEIFSYGL-QPYYGFSNQEVIEMIR-------SRQLLPCPED 250
Query: 83 T-KDILDLMNECWKRSPTERPSFTEIH 108
+ LM ECW P RP F +IH
Sbjct: 251 CPARVYALMIECWNEIPARRPRFKDIH 277
>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 = 71.7 bits (176), Expect = 3e-16
Identities = 34/84 (40%), Positives = 48/84 (57%), Gaps = 13/84 (15%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENIS---HLHADDGEFIYLPTPQTT 83
FT+K+DVWSFGV LWEI +L PY G T+ EV+E ++ L G P P
Sbjct: 198 FTSKTDVWSFGVLLWEIFSLGY-MPYPGRTNQEVMEFVTGGGRLDPPKG----CPGP--- 249
Query: 84 KDILDLMNECWKRSPTERPSFTEI 107
+ +M +CW+ +P +RP+F I
Sbjct: 250 --VYRIMTDCWQHTPEDRPNFATI 271
>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 = 71.6 bits (175), Expect = 3e-16
Identities = 37/92 (40%), Positives = 54/92 (58%), Gaps = 9/92 (9%)
Query: 22 SLHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQ 81
+L+ +FT KSDVWSFG+ L E++ R PY G+ + EVLE + + +P PQ
Sbjct: 175 ALYGRFTIKSDVWSFGILLTELVTKGR-VPYPGMNNREVLEQVERGYR-------MPCPQ 226
Query: 82 TTKDIL-DLMNECWKRSPTERPSFTEIHLFLQ 112
L +LM +CWK+ P ERP+F + FL+
Sbjct: 227 DCPISLHELMLQCWKKDPEERPTFEYLQSFLE 258
>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 = 71.2 bits (174), Expect = 6e-16
Identities = 38/82 (46%), Positives = 49/82 (59%), Gaps = 9/82 (10%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDI 86
FTT SDVWSFGV LWEI LA +PY+G+++ +VL + E L P D+
Sbjct: 198 FTTYSDVWSFGVVLWEIATLA-EQPYQGMSNEQVLRFVM-------EGGLLDKPDNCPDM 249
Query: 87 L-DLMNECWKRSPTERPSFTEI 107
L +LM CW+ +P RPSF EI
Sbjct: 250 LFELMRMCWQYNPKMRPSFLEI 271
>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 = 70.6 bits (173), Expect = 8e-16
Identities = 34/88 (38%), Positives = 52/88 (59%), Gaps = 9/88 (10%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTT-K 84
++T++SDVWS+G+ LWE +L PY G+++ + E I + G +P PQ +
Sbjct: 171 RYTSESDVWSYGILLWETFSLG-DTPYPGMSNQQTRERI-----ESG--YRMPAPQLCPE 222
Query: 85 DILDLMNECWKRSPTERPSFTEIHLFLQ 112
+I LM +CW P RPSF+EI+ LQ
Sbjct: 223 EIYRLMLQCWAYDPENRPSFSEIYNELQ 250
>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 = 70.5 bits (173), Expect = 8e-16
Identities = 32/95 (33%), Positives = 48/95 (50%), Gaps = 17/95 (17%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHRPY--EGLTDL-EVLENISHLHADDG--EFIYLP 78
+KF+TKSDVWSFG+ LWEI + R PY L D+ +E + A +G +Y
Sbjct: 173 EKKFSTKSDVWSFGILLWEIYSFGR-VPYPRIPLKDVVPHVEKGYRMEAPEGCPPEVY-- 229
Query: 79 TPQTTKDILDLMNECWKRSPTERPSFTEIHLFLQR 113
+M +CW+ P +RP+F ++ L
Sbjct: 230 ---------KVMKDCWELDPAKRPTFKQLREQLAL 255
>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 = 70.3 bits (172), Expect = 1e-15
Identities = 31/89 (34%), Positives = 54/89 (60%), Gaps = 9/89 (10%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
F++ SDVWSFG+ +WE+++ RPY ++ +V++ + +DG LP P+ +
Sbjct: 184 HFSSASDVWSFGIVMWEVMSYGE-RPYWDMSGQDVIKAV-----EDG--FRLPAPRNCPN 235
Query: 86 IL-DLMNECWKRSPTERPSFTEIHLFLQR 113
+L LM +CW++ ERP F++IH L +
Sbjct: 236 LLHQLMLDCWQKERGERPRFSQIHSILSK 264
>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 = 70.4 bits (172), Expect = 1e-15
Identities = 32/91 (35%), Positives = 51/91 (56%), Gaps = 7/91 (7%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTT 83
H+KF++KSDVWS+GV LWE+ + R PY ++ EV E + + + P
Sbjct: 171 HKKFSSKSDVWSYGVLLWEVFSYGR-APYPKMSLKEVKECVEKGYRME------PPEGCP 223
Query: 84 KDILDLMNECWKRSPTERPSFTEIHLFLQRK 114
D+ LM CW+ P +RPSF ++ L+++
Sbjct: 224 ADVYVLMTSCWETEPKKRPSFHKLREKLEKE 254
>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 = 70.2 bits (172), Expect = 1e-15
Identities = 31/86 (36%), Positives = 47/86 (54%), Gaps = 9/86 (10%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTP-QT 82
H F+TKSDVWSFG+ L+E+ + PY G+ + EV + I+ +P P +
Sbjct: 178 HGTFSTKSDVWSFGILLYEMFTYGQ-VPYPGMNNHEVYDQIT-------AGYRMPCPAKC 229
Query: 83 TKDILDLMNECWKRSPTERPSFTEIH 108
++I +M ECW P +RPSF +
Sbjct: 230 PQEIYKIMLECWAAEPEDRPSFKALR 255
>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 = 70.5 bits (173), Expect = 1e-15
Identities = 36/114 (31%), Positives = 55/114 (48%), Gaps = 11/114 (9%)
Query: 5 NDLMRDLTNGRIFKNKNSLH----RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEV 60
D R TNGR+ + R +T +SDVWSFGV LWEI L PY G+ E+
Sbjct: 185 IDYYRKTTNGRLPVKWMAPEALFDRVYTHQSDVWSFGVLLWEIFTLG-GSPYPGIPVEEL 243
Query: 61 LENISHLHADDGEFIYLPTPQTTKDILDLMNECWKRSPTERPSFTEIHLFLQRK 114
+ + + + T+++ LM +CW P++RP+F ++ L R
Sbjct: 244 FKLLKEGYRME------KPQNCTQELYHLMRDCWHEVPSQRPTFKQLVEDLDRM 291
>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 = 70.4 bits (172), Expect = 1e-15
Identities = 36/88 (40%), Positives = 51/88 (57%), Gaps = 9/88 (10%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD- 85
+TTKSDVWSFGV LWEI++L PY G+T E+ E + + + P+ D
Sbjct: 195 YTTKSDVWSFGVLLWEIVSLG-GTPYCGMTCAELYEKLP-------QGYRMEKPRNCDDE 246
Query: 86 ILDLMNECWKRSPTERPSFTEIHLFLQR 113
+ +LM +CW+ P ERP F +I + L R
Sbjct: 247 VYELMRQCWRDRPYERPPFAQISVQLSR 274
>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 = 70.0 bits (171), Expect = 1e-15
Identities = 38/82 (46%), Positives = 52/82 (63%), Gaps = 9/82 (10%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD- 85
FTT SD+WSFGV LWEI +LA +PY+GL++ +VL+ + D G YL P +
Sbjct: 198 FTTSSDMWSFGVVLWEITSLAE-QPYQGLSNEQVLKFV----MDGG---YLDQPDNCPER 249
Query: 86 ILDLMNECWKRSPTERPSFTEI 107
+ DLM CW+ +P RP+F EI
Sbjct: 250 VTDLMRMCWQFNPKMRPTFLEI 271
>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 = 69.5 bits (170), Expect = 2e-15
Identities = 30/85 (35%), Positives = 49/85 (57%), Gaps = 7/85 (8%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
L+ KF++KSDVW+FGV +WE+ +L + PYE + E +E +S G +Y P
Sbjct: 174 LYSKFSSKSDVWAFGVLMWEVYSLGK-MPYERFNNSETVEKVSQ-----GLRLYRPH-LA 226
Query: 83 TKDILDLMNECWKRSPTERPSFTEI 107
++ + +M CW ERP+F ++
Sbjct: 227 SEKVYAIMYSCWHEKAEERPTFQQL 251
>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 = 69.3 bits (169), Expect = 2e-15
Identities = 37/88 (42%), Positives = 50/88 (56%), Gaps = 9/88 (10%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD- 85
+TT SDVWS+GV LWEI++L PY G+T E+ E + + L P D
Sbjct: 188 YTTNSDVWSYGVLLWEIVSLG-GTPYCGMTCAELYEKLPQGYR-------LEKPLNCDDE 239
Query: 86 ILDLMNECWKRSPTERPSFTEIHLFLQR 113
+ DLM +CW+ P ERPSF +I + L R
Sbjct: 240 VYDLMRQCWREKPYERPSFAQILVSLNR 267
>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 = 69.2 bits (169), Expect = 2e-15
Identities = 32/80 (40%), Positives = 50/80 (62%), Gaps = 7/80 (8%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
K+++KSDVWSFGV +WE+ + + PYE ++ EV+E I+ G +Y P ++
Sbjct: 177 KYSSKSDVWSFGVLMWEVFSEGK-TPYENRSNSEVVETIN-----AGFRLYKPR-LASQS 229
Query: 86 ILDLMNECWKRSPTERPSFT 105
+ +LM CWK P +RPSF+
Sbjct: 230 VYELMQHCWKERPEDRPSFS 249
>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 = 68.7 bits (168), Expect = 4e-15
Identities = 33/90 (36%), Positives = 52/90 (57%), Gaps = 9/90 (10%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTK 84
R +T+KSDVW+FGVT+WEI + PY G+ + E+ + + H + L P+
Sbjct: 190 RVYTSKSDVWAFGVTMWEIATRGQ-TPYPGVENHEIYDYLRHGNR-------LKQPEDCL 241
Query: 85 D-ILDLMNECWKRSPTERPSFTEIHLFLQR 113
D + DLM CW+ P +RP+FT++ L+
Sbjct: 242 DELYDLMYSCWRADPKDRPTFTKLREVLEN 271
>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 = 68.9 bits (168), Expect = 5e-15
Identities = 33/91 (36%), Positives = 50/91 (54%), Gaps = 9/91 (9%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
++ KF++ SD+WSFGV LWEI + +PY G ++ EV+E + LP +
Sbjct: 199 MYGKFSSDSDIWSFGVVLWEIFSFGL-QPYYGFSNQEVIEMVRKRQ-------LLPCSED 250
Query: 83 TKD-ILDLMNECWKRSPTERPSFTEIHLFLQ 112
+ LM ECW+ P+ RP F +IH L+
Sbjct: 251 CPPRMYSLMTECWQEGPSRRPRFKDIHTRLR 281
>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 = 68.9 bits (168), Expect = 5e-15
Identities = 37/88 (42%), Positives = 50/88 (56%), Gaps = 9/88 (10%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD- 85
+TT SDVWS+GV LWEI++L PY G+T E+ E + + L P D
Sbjct: 200 YTTNSDVWSYGVLLWEIVSLG-GTPYCGMTCAELYEKLP-------QGYRLEKPLNCDDE 251
Query: 86 ILDLMNECWKRSPTERPSFTEIHLFLQR 113
+ DLM +CW+ P ERPSF +I + L R
Sbjct: 252 VYDLMRQCWREKPYERPSFAQILVSLNR 279
>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 = 68.0 bits (166), Expect = 7e-15
Identities = 33/83 (39%), Positives = 45/83 (54%), Gaps = 7/83 (8%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
KF+ KSDVW+FGV LWEI PY G+ L + L + G + P
Sbjct: 181 KFSIKSDVWAFGVLLWEIATYGM-SPYPGID----LSQVYEL-LEKGYRMERP-EGCPPK 233
Query: 86 ILDLMNECWKRSPTERPSFTEIH 108
+ +LM CW+ +P++RPSF EIH
Sbjct: 234 VYELMRACWQWNPSDRPSFAEIH 256
>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 = 68.1 bits (166), Expect = 8e-15
Identities = 32/85 (37%), Positives = 50/85 (58%), Gaps = 7/85 (8%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
LHR+FT +SDVWS+GVT+WE++ +PY+G+ E+ + + + GE + P P
Sbjct: 184 LHRRFTHQSDVWSYGVTVWELMTFGA-KPYDGIPAREIPDLL-----EKGERLPQP-PIC 236
Query: 83 TKDILDLMNECWKRSPTERPSFTEI 107
T D+ +M +CW RP F E+
Sbjct: 237 TIDVYMIMVKCWMIDSECRPRFREL 261
>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 = 67.6 bits (165), Expect = 1e-14
Identities = 32/91 (35%), Positives = 51/91 (56%), Gaps = 9/91 (9%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTT 83
+RKFT+ SDVWS+G+ +WE+++ RPY +++ +V++ I E LP P
Sbjct: 183 YRKFTSASDVWSYGIVMWEVMSYGE-RPYWEMSNQDVIKAIE-------EGYRLPAPMDC 234
Query: 84 KDIL-DLMNECWKRSPTERPSFTEIHLFLQR 113
L LM +CW++ ERP F +I L +
Sbjct: 235 PAALHQLMLDCWQKDRNERPKFEQIVSILDK 265
>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 = 67.6 bits (165), Expect = 1e-14
Identities = 33/79 (41%), Positives = 47/79 (59%), Gaps = 9/79 (11%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTT-KD 85
FT KSDVWSFG+ L EI+ R PY G+T+ EV++N+ + +P P ++
Sbjct: 180 FTIKSDVWSFGILLTEIVTYGR-IPYPGMTNPEVIQNLERGYR-------MPRPDNCPEE 231
Query: 86 ILDLMNECWKRSPTERPSF 104
+ +LM CWK P ERP+F
Sbjct: 232 LYELMRLCWKEKPEERPTF 250
>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 = 67.4 bits (164), Expect = 2e-14
Identities = 42/101 (41%), Positives = 58/101 (57%), Gaps = 11/101 (10%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
++RKFTT+SDVWS GV LWEI + +P+ L++ EV+E I+ L P+T
Sbjct: 195 MYRKFTTESDVWSLGVVLWEIFTYGK-QPWYQLSNNEVIECITQGRV-------LQRPRT 246
Query: 83 T-KDILDLMNECWKRSPTERPSFTEIHLFLQRKNLGYVPPM 122
K++ DLM CW+R P R + EIH LQ NL P+
Sbjct: 247 CPKEVYDLMLGCWQREPHMRLNIKEIHSLLQ--NLAKASPV 285
>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 = 66.5 bits (162), Expect = 2e-14
Identities = 33/87 (37%), Positives = 49/87 (56%), Gaps = 7/87 (8%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
KF++KSDVWSFGV +WE + + +PY+G+ EV + I + GE + P + +
Sbjct: 174 KFSSKSDVWSFGVLMWEAFSYGQ-KPYKGMKGNEVTQMI-----ESGERMECP-QRCPPE 226
Query: 86 ILDLMNECWKRSPTERPSFTEIHLFLQ 112
+ DLM CW ERP F + L L+
Sbjct: 227 MYDLMKLCWTYGVDERPGFAVVELRLR 253
>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 = 66.9 bits (163), Expect = 2e-14
Identities = 33/90 (36%), Positives = 49/90 (54%), Gaps = 9/90 (10%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDI 86
+TT SDVW+FGVT+WEI+ + PY G+ + E+ + G + P P +D+
Sbjct: 192 YTTHSDVWAFGVTMWEIMTRGQ-TPYAGVENSEIYN-----YLIKGNRLKQP-PDCLEDV 244
Query: 87 LDLMNECWKRSPTERPSFTEIHLFLQRKNL 116
+LM +CW P RPSF HL Q + +
Sbjct: 245 YELMCQCWSPEPKCRPSFQ--HLRDQLELI 272
>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 = 66.6 bits (162), Expect = 3e-14
Identities = 35/91 (38%), Positives = 55/91 (60%), Gaps = 7/91 (7%)
Query: 22 SLHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQ 81
+L+ +FT KSDVWSFG+ L E+ R PY G+ + EVL+ + + G + P P+
Sbjct: 175 ALYGRFTIKSDVWSFGILLTELTTKGR-VPYPGMVNREVLDQV-----ERGYRMPCP-PE 227
Query: 82 TTKDILDLMNECWKRSPTERPSFTEIHLFLQ 112
+ + DLM +CW++ P ERP+F + FL+
Sbjct: 228 CPESLHDLMCQCWRKEPEERPTFEYLQAFLE 258
>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 = 66.5 bits (162), Expect = 3e-14
Identities = 30/85 (35%), Positives = 49/85 (57%), Gaps = 9/85 (10%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTT 83
+RKFT+ SDVWSFG+ +WE+++ RPY +++ EV++ I+ + LP P
Sbjct: 184 YRKFTSASDVWSFGIVMWEVMSFGE-RPYWDMSNHEVMKAIN-------DGFRLPAPMDC 235
Query: 84 KD-ILDLMNECWKRSPTERPSFTEI 107
+ LM +CW++ RP F +I
Sbjct: 236 PSAVYQLMLQCWQQDRARRPRFVDI 260
>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 = 66.6 bits (162), Expect = 3e-14
Identities = 33/89 (37%), Positives = 49/89 (55%), Gaps = 7/89 (7%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTK 84
R +TTKSDVWSFGVT+WEI + PY G+ + E+ + + G + P P
Sbjct: 189 RVYTTKSDVWSFGVTMWEIATRGQ-TPYPGVENSEIYDYLRQ-----GNRLKQP-PDCLD 241
Query: 85 DILDLMNECWKRSPTERPSFTEIHLFLQR 113
+ LM+ CW +P +RPSF + L++
Sbjct: 242 GLYSLMSSCWLLNPKDRPSFETLRCELEK 270
>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 = 66.0 bits (161), Expect = 4e-14
Identities = 30/82 (36%), Positives = 47/82 (57%), Gaps = 7/82 (8%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
K+++KSDVWSFGV +WE+ + P+E ++ EV+E IS G +Y P +
Sbjct: 177 KYSSKSDVWSFGVLMWEVFTEGK-MPFEKKSNYEVVEMISR-----GFRLYRPK-LASMT 229
Query: 86 ILDLMNECWKRSPTERPSFTEI 107
+ ++M CW P RP+F E+
Sbjct: 230 VYEVMYSCWHEKPEGRPTFAEL 251
>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 = 66.2 bits (161), Expect = 5e-14
Identities = 36/89 (40%), Positives = 54/89 (60%), Gaps = 7/89 (7%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
++RKFTT+SDVWSFGV LWEI + +P+ L++ EV+E I+ G + P
Sbjct: 198 MYRKFTTESDVWSFGVILWEIFTYGK-QPWFQLSNTEVIECITQ-----GRVLERPR-VC 250
Query: 83 TKDILDLMNECWKRSPTERPSFTEIHLFL 111
K++ D+M CW+R P +R + EI+ L
Sbjct: 251 PKEVYDIMLGCWQREPQQRLNIKEIYKIL 279
>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 = 65.5 bits (160), Expect = 7e-14
Identities = 32/91 (35%), Positives = 51/91 (56%), Gaps = 9/91 (9%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
+++++++ SDVWSFGV LWE++ L + PY +++ E ++L DG L P
Sbjct: 192 VNKEYSSASDVWSFGVLLWELMTLGQ-TPYV---EIDPFEMAAYLK--DG--YRLAQPIN 243
Query: 83 TKDIL-DLMNECWKRSPTERPSFTEIHLFLQ 112
D L +M CW P ERPSF+++ L
Sbjct: 244 CPDELFAVMACCWALDPEERPSFSQLVQCLT 274
>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 = 66.0 bits (161), Expect = 7e-14
Identities = 32/84 (38%), Positives = 47/84 (55%), Gaps = 8/84 (9%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLT-DLEVLENISHLHADDGEFIYLPTPQTT 83
+ +TT+SDVWSFGV LWEI +L PY G+ D E + G + P T
Sbjct: 250 KVYTTQSDVWSFGVLLWEIFSLGA-SPYPGVQIDEEFCRRLKE-----GTRMRAPE-YAT 302
Query: 84 KDILDLMNECWKRSPTERPSFTEI 107
+I +M +CW +P +RP+F+E+
Sbjct: 303 PEIYSIMLDCWHNNPEDRPTFSEL 326
>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 = 63.9 bits (155), Expect = 2e-13
Identities = 31/88 (35%), Positives = 48/88 (54%), Gaps = 9/88 (10%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTP-QTTK 84
+++++SDVWSFG+ LWE +L PY L++ + E I + + LP P
Sbjct: 172 RYSSESDVWSFGILLWEAFSLGA-VPYANLSNQQTREAIE-------QGVRLPCPELCPD 223
Query: 85 DILDLMNECWKRSPTERPSFTEIHLFLQ 112
+ LM CW+ P +RPSF+ +H LQ
Sbjct: 224 AVYRLMERCWEYDPGQRPSFSTVHQELQ 251
>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 = 64.0 bits (156), Expect = 3e-13
Identities = 28/97 (28%), Positives = 43/97 (44%), Gaps = 9/97 (9%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYL------- 77
KF++ SDVWSFGVTL+E+ + + I+ + L
Sbjct: 187 SKFSSASDVWSFGVTLYELFTYGDPS-QSPPAEFLRMIGIAQGQMIVTRLLELLKEGERL 245
Query: 78 -PTPQTTKDILDLMNECWKRSPTERPSFTEIHLFLQR 113
P ++ DLM CW+ P +RPSF ++ L + R
Sbjct: 246 PRPPSCPDEVYDLMKLCWEAEPQDRPSFADLILIVDR 282
>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 = 63.1 bits (153), Expect = 4e-13
Identities = 30/86 (34%), Positives = 46/86 (53%), Gaps = 9/86 (10%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDI 86
FT KSDVWSFG+ L+EI+ + PY G+++ +V+ + + +P + D
Sbjct: 181 FTIKSDVWSFGILLYEIVTYGK-IPYPGMSNSDVMSALQRGYR-------MPRMENCPDE 232
Query: 87 L-DLMNECWKRSPTERPSFTEIHLFL 111
L D+M CWK ERP+F + L
Sbjct: 233 LYDIMKTCWKEKAEERPTFDYLQSVL 258
>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 = 63.1 bits (153), Expect = 4e-13
Identities = 30/86 (34%), Positives = 44/86 (51%), Gaps = 7/86 (8%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDI 86
FT KSDVWSFG+ L EI+ R PY G+++ EV+ + + +++
Sbjct: 180 FTIKSDVWSFGILLMEIVTYGR-IPYPGMSNPEVIRALER------GYRMPRPENCPEEL 232
Query: 87 LDLMNECWKRSPTERPSFTEIHLFLQ 112
++M CWK P ERP+F I L
Sbjct: 233 YNIMMRCWKNRPEERPTFEYIQSVLD 258
>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 = 62.7 bits (152), Expect = 6e-13
Identities = 33/91 (36%), Positives = 47/91 (51%), Gaps = 13/91 (14%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEV---LENISHLHADDGEFIYLPTPQ 81
+KF+TKSDVWSFG+ LWEI + R PY + +V +E + A DG P
Sbjct: 174 KKFSTKSDVWSFGILLWEIYSFGR-VPYPRIPLKDVVPRVEKGYKMDAPDG------CPP 226
Query: 82 TTKDILDLMNECWKRSPTERPSFTEIHLFLQ 112
+ D+M +CW RPSF ++ L+
Sbjct: 227 V---VYDVMKQCWHLDAATRPSFLQLREQLE 254
>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 = 62.7 bits (152), Expect = 7e-13
Identities = 26/85 (30%), Positives = 49/85 (57%), Gaps = 7/85 (8%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
RKF+++SDVWS+G+T+WE + + +PY+ + EV+ I + G+ + P +
Sbjct: 171 NFRKFSSRSDVWSYGITMWEAFSYGQ-KPYKKMKGPEVMSFI-----EQGKRLDCP-AEC 223
Query: 83 TKDILDLMNECWKRSPTERPSFTEI 107
++ LM +CW +RP+F ++
Sbjct: 224 PPEMYALMKDCWIYKWEDRPNFAKV 248
>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 = 61.8 bits (150), Expect = 1e-12
Identities = 29/85 (34%), Positives = 47/85 (55%), Gaps = 9/85 (10%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTT 83
+RKFT+ SDVWS+G+ +WE+++ RPY +++ +V+ I + LP P
Sbjct: 185 YRKFTSASDVWSYGIVMWEVMSYG-ERPYWDMSNQDVINAIEQDYR-------LPPPMDC 236
Query: 84 KDIL-DLMNECWKRSPTERPSFTEI 107
L LM +CW++ RP F +I
Sbjct: 237 PTALHQLMLDCWQKDRNARPKFGQI 261
>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 = 62.3 bits (151), Expect = 1e-12
Identities = 33/88 (37%), Positives = 48/88 (54%), Gaps = 13/88 (14%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLE---VLENISHLHADDGEFIYLPT 79
LHR +T +SDVWS+GVT+WE++ +PY+G+ E +LE GE + P
Sbjct: 184 LHRIYTHQSDVWSYGVTVWELMTFGS-KPYDGIPASEISSILEK--------GERLPQP- 233
Query: 80 PQTTKDILDLMNECWKRSPTERPSFTEI 107
P T D+ +M +CW RP F E+
Sbjct: 234 PICTIDVYMIMVKCWMIDADSRPKFREL 261
>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 = 61.3 bits (149), Expect = 3e-12
Identities = 27/90 (30%), Positives = 47/90 (52%), Gaps = 6/90 (6%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
+ +T +SDVWS+G+ LWEI +L + PY G+ +++ + +G + P
Sbjct: 216 FNCVYTFESDVWSYGILLWEIFSLGSN-PYPGM----PVDSKFYKLIKEGYRMAQPE-HA 269
Query: 83 TKDILDLMNECWKRSPTERPSFTEIHLFLQ 112
+I D+M CW P +RP+F +I +
Sbjct: 270 PAEIYDIMKTCWDADPLKRPTFKQIVQLIG 299
>gnl|CDD|215690 pfam00069, Pkinase, Protein kinase domain.
Length = 260
Score = 60.7 bits (148), Expect = 4e-12
Identities = 27/91 (29%), Positives = 43/91 (47%), Gaps = 6/91 (6%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISH-LHADDGEFIYLPTPQT 82
+ K DVWS GV L+E+L P+ G L+ L+ I L EF
Sbjct: 173 GNGYGPKVDVWSLGVILYELLT--GKPPFSGENILDQLQLIRRILGPPL-EFDEPKWSSG 229
Query: 83 TKDILDLMNECWKRSPTERPSFTEI--HLFL 111
+++ DL+ +C + P++RP+ EI H +
Sbjct: 230 SEEAKDLIKKCLNKDPSKRPTAEEILQHPWF 260
>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 = 60.7 bits (147), Expect = 4e-12
Identities = 34/106 (32%), Positives = 52/106 (49%), Gaps = 11/106 (10%)
Query: 6 DLMRDLTNGRI----FKNKNSLHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVL 61
D + +NGR+ + R +T +SDVWSFG+ +WEI L PY G+ E+
Sbjct: 188 DYYKKTSNGRLPVKWMAPEALFDRVYTHQSDVWSFGILMWEIFTLG-GSPYPGIPVEELF 246
Query: 62 ENISHLHADDGEFIYLPTPQTTKDILDLMNECWKRSPTERPSFTEI 107
+ + H D T ++ LM ECW PT+RP+F ++
Sbjct: 247 KLLREGHRMD------KPSNCTHELYMLMRECWHAVPTQRPTFKQL 286
>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 = 60.4 bits (146), Expect = 7e-12
Identities = 35/106 (33%), Positives = 52/106 (49%), Gaps = 11/106 (10%)
Query: 6 DLMRDLTNGRI----FKNKNSLHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVL 61
D + TNGR+ + R +T +SDVWSFGV LWEI L PY G+ E+
Sbjct: 188 DYYKKTTNGRLPVKWMAPEALFDRVYTHQSDVWSFGVLLWEIFTLG-GSPYPGIPVEELF 246
Query: 62 ENISHLHADDGEFIYLPTPQTTKDILDLMNECWKRSPTERPSFTEI 107
+ + H D T ++ +M ECW P++RP+F ++
Sbjct: 247 KLLKEGHRMD------KPANCTHELYMIMRECWHAVPSQRPTFKQL 286
>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 = 60.0 bits (145), Expect = 8e-12
Identities = 32/84 (38%), Positives = 47/84 (55%), Gaps = 8/84 (9%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGL-TDLEVLENISHLHADDGEFIYLPTPQTT 83
R +T +SDVWSFGV LWEI +L PY G+ D E + +G + P TT
Sbjct: 256 RVYTIQSDVWSFGVLLWEIFSLGA-SPYPGVKIDEEFCRRLK-----EGTRMRAPD-YTT 308
Query: 84 KDILDLMNECWKRSPTERPSFTEI 107
++ M +CW P++RP+F+E+
Sbjct: 309 PEMYQTMLDCWHGEPSQRPTFSEL 332
>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 = 59.4 bits (144), Expect = 1e-11
Identities = 31/83 (37%), Positives = 43/83 (51%), Gaps = 9/83 (10%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
KFTTKSDVWSFGV LWE++ PY + ++ + G L P+ D
Sbjct: 178 KFTTKSDVWSFGVLLWELMTRGA-PPYPDVDSFDITVYLL-----QGR--RLLQPEYCPD 229
Query: 86 IL-DLMNECWKRSPTERPSFTEI 107
L ++M CW P RP+F+E+
Sbjct: 230 PLYEVMLSCWHPKPEMRPTFSEL 252
>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 = 59.2 bits (143), Expect = 1e-11
Identities = 26/84 (30%), Positives = 44/84 (52%), Gaps = 9/84 (10%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTT-K 84
+++++SDVWS+G+ LWE +L PY G+T+ + E + + + PQ
Sbjct: 170 RYSSESDVWSYGILLWETFSLGVC-PYPGMTNQQAREQVEKGYR-------MSCPQKCPD 221
Query: 85 DILDLMNECWKRSPTERPSFTEIH 108
D+ +M CW P RP F+E+
Sbjct: 222 DVYKVMQRCWDYKPENRPKFSELQ 245
>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 = 59.6 bits (144), Expect = 1e-11
Identities = 32/82 (39%), Positives = 46/82 (56%), Gaps = 8/82 (9%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLT-DLEVLENISHLHADDGEFIYLPTPQTTKD 85
+TT+SDVWSFGV LWEI +L PY G+ + E + + DG + P T +
Sbjct: 253 YTTQSDVWSFGVLLWEIFSLGA-SPYPGVQINEEFCQRLK-----DGTRMRAPE-NATPE 305
Query: 86 ILDLMNECWKRSPTERPSFTEI 107
I +M CW+ P ERP+F+ +
Sbjct: 306 IYRIMLACWQGDPKERPTFSAL 327
>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 = 59.3 bits (143), Expect = 1e-11
Identities = 35/106 (33%), Positives = 54/106 (50%), Gaps = 11/106 (10%)
Query: 6 DLMRDLTNGRI----FKNKNSLHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVL 61
D + TNGR+ + R +T +SDVWSFGV LWEI L PY G+ E+
Sbjct: 194 DYYKKTTNGRLPVKWMAPEALFDRIYTHQSDVWSFGVLLWEIFTLG-GSPYPGVPVEELF 252
Query: 62 ENISHLHADDGEFIYLPTPQTTKDILDLMNECWKRSPTERPSFTEI 107
+ + H D P+ T ++ +M +CW P++RP+F ++
Sbjct: 253 KLLKEGHRMDK-----PS-NCTNELYMMMRDCWHAVPSQRPTFKQL 292
>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 = 59.3 bits (143), Expect = 1e-11
Identities = 31/84 (36%), Positives = 45/84 (53%), Gaps = 9/84 (10%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
KF+ SD+WS+GV LWE+ + +PY G ++ +V+E I + LP P
Sbjct: 202 KFSIDSDIWSYGVVLWEVFSYGL-QPYCGYSNQDVIEMIRNRQV-------LPCPDDCPA 253
Query: 86 -ILDLMNECWKRSPTERPSFTEIH 108
+ LM ECW P+ RP F +IH
Sbjct: 254 WVYTLMLECWNEFPSRRPRFKDIH 277
>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 = 59.2 bits (143), Expect = 2e-11
Identities = 32/81 (39%), Positives = 49/81 (60%), Gaps = 7/81 (8%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDI 86
+TT+SDVWSFGV LWEI+ L + PY G+ E + +L G + P ++++
Sbjct: 206 YTTQSDVWSFGVLLWEIVTLGGN-PYPGIAP----ERLFNL-LKTGYRMERPE-NCSEEM 258
Query: 87 LDLMNECWKRSPTERPSFTEI 107
+LM CWK+ P +RP+F +I
Sbjct: 259 YNLMLTCWKQEPDKRPTFADI 279
>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 = 59.3 bits (143), Expect = 2e-11
Identities = 31/84 (36%), Positives = 49/84 (58%), Gaps = 7/84 (8%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTT 83
+RKFT +SDVWS+GVT+WE++ +PY+G+ E+ + + + GE + P P T
Sbjct: 185 YRKFTHQSDVWSYGVTIWELMTFG-GKPYDGIPTREIPDLL-----EKGERLPQP-PICT 237
Query: 84 KDILDLMNECWKRSPTERPSFTEI 107
D+ +M +CW RP F E+
Sbjct: 238 IDVYMVMVKCWMIDADSRPKFKEL 261
>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 = 58.7 bits (142), Expect = 2e-11
Identities = 34/95 (35%), Positives = 49/95 (51%), Gaps = 11/95 (11%)
Query: 21 NSLHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTP 80
+ L + T KS++WS GVT+WE+ A +PY L+D +VL+ + + D I LP P
Sbjct: 180 DLLPKDQTKKSNIWSLGVTMWELFTAAD-QPYPDLSDEQVLKQV--VREQD---IKLPKP 233
Query: 81 QTTKDILD----LMNECWKRSPTERPSFTEIHLFL 111
Q D +M CW P RP+ E+H L
Sbjct: 234 QLDLKYSDRWYEVMQFCW-LDPETRPTAEEVHELL 267
>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 = 58.3 bits (141), Expect = 4e-11
Identities = 30/87 (34%), Positives = 48/87 (55%), Gaps = 6/87 (6%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDI 86
+T +SDVWS+G+ LWEI +L + PY G+ ++ + + G + P +I
Sbjct: 291 YTVQSDVWSYGILLWEIFSLGKS-PYPGI----LVNSKFYKMVKRGYQMSRPD-FAPPEI 344
Query: 87 LDLMNECWKRSPTERPSFTEIHLFLQR 113
+M CW PTERP+F++I +QR
Sbjct: 345 YSIMKMCWNLEPTERPTFSQISQLIQR 371
>gnl|CDD|214567 smart00220, S_TKc, Serine/Threonine protein kinases, catalytic
domain. Phosphotransferases. Serine or
threonine-specific kinase subfamily.
Length = 254
Score = 57.5 bits (140), Expect = 5e-11
Identities = 18/85 (21%), Positives = 32/85 (37%), Gaps = 5/85 (5%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
L + + D+WS GV L+E+ L P+ G L + P
Sbjct: 169 LGKGYGKAVDIWSLGVILYEL--LTGKPPFPGDDQLLE---LFKKIGKPKPPFPPPEWDI 223
Query: 83 TKDILDLMNECWKRSPTERPSFTEI 107
+ + DL+ + + P +R + E
Sbjct: 224 SPEAKDLIRKLLVKDPEKRLTAEEA 248
>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 = 56.6 bits (136), Expect = 1e-10
Identities = 33/106 (31%), Positives = 51/106 (48%), Gaps = 11/106 (10%)
Query: 6 DLMRDLTNGRI----FKNKNSLHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVL 61
D + TNGR+ + R +T +SDVWSFGV +WEI L PY G+ E+
Sbjct: 191 DYYKKTTNGRLPVKWMAPEALFDRVYTHQSDVWSFGVLMWEIFTLG-GSPYPGIPVEELF 249
Query: 62 ENISHLHADDGEFIYLPTPQTTKDILDLMNECWKRSPTERPSFTEI 107
+ + H D T ++ +M +CW P+ RP+F ++
Sbjct: 250 KLLKEGHRMD------KPANCTNELYMMMRDCWHAIPSHRPTFKQL 289
>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 = 55.3 bits (133), Expect = 4e-10
Identities = 31/86 (36%), Positives = 48/86 (55%), Gaps = 9/86 (10%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
L ++T +SDVWS+GVT+WE+++ PY G+ EV + + + GE L PQ
Sbjct: 184 LFGRYTHQSDVWSYGVTVWEMMSYGA-EPYAGMRPHEVPDLL-----EKGE--RLAQPQI 235
Query: 83 -TKDILDLMNECWKRSPTERPSFTEI 107
T D+ +M +CW RP+F E+
Sbjct: 236 CTIDVYMVMVKCWMIDENVRPTFKEL 261
>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 = 55.0 bits (132), Expect = 6e-10
Identities = 28/78 (35%), Positives = 45/78 (57%), Gaps = 6/78 (7%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDI 86
+TT SDVWS+G+ LWEI +L PY G+ ++++ + G + P T+++
Sbjct: 316 YTTLSDVWSYGILLWEIFSLG-GTPYPGM----IVDSTFYNKIKSGYRMAKPD-HATQEV 369
Query: 87 LDLMNECWKRSPTERPSF 104
D+M +CW P +RPSF
Sbjct: 370 YDIMVKCWNSEPEKRPSF 387
>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 = 52.7 bits (126), Expect = 3e-09
Identities = 34/117 (29%), Positives = 53/117 (45%), Gaps = 15/117 (12%)
Query: 6 DLMRD---LTNGRIF------KNKNSLHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLT 56
D+MRD ++ G F ++ + +TT SDVWSFG+ LWEI L PY L
Sbjct: 288 DIMRDSNYISKGSTFLPLKWMAPESIFNNLYTTLSDVWSFGILLWEIFTLG-GTPYPELP 346
Query: 57 DLEVLENISHLHADDGEFIYLPTPQTTKDILDLMNECWKRSPTERPSFTEIHLFLQR 113
E N G + P + +I ++M +CW+ RP F+++ +
Sbjct: 347 MNEQFYNA----IKRGYRMAKPA-HASDEIYEIMQKCWEEKFEIRPDFSQLVHLVGD 398
>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 = 51.7 bits (124), Expect = 6e-09
Identities = 31/90 (34%), Positives = 44/90 (48%), Gaps = 8/90 (8%)
Query: 26 KFTTKSDVWSFGVTLWEIL---NLARHRPYEGLT----DLEVLENISHLHADDGEFIYLP 78
KF+ SDVWSFGV L+E+ + + P E + D + + HL LP
Sbjct: 187 KFSVASDVWSFGVVLYELFTYSDKSCSPPAEFMRMMGNDKQGQMIVYHLIELLKNNGRLP 246
Query: 79 TPQTTKD-ILDLMNECWKRSPTERPSFTEI 107
P I +M ECW P++RPSF+E+
Sbjct: 247 APPGCPAEIYAIMKECWNNDPSQRPSFSEL 276
>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 = 51.7 bits (125), Expect = 6e-09
Identities = 25/84 (29%), Positives = 45/84 (53%), Gaps = 8/84 (9%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTT 83
++ + KSD+WS G L+E+ L P+EG LE+ I G++ +P Q +
Sbjct: 177 NKPYNYKSDIWSLGCVLYELCTL--KHPFEGENLLELALKILK-----GQYPPIP-SQYS 228
Query: 84 KDILDLMNECWKRSPTERPSFTEI 107
++ +L++ ++ P ERPS +I
Sbjct: 229 SELRNLVSSLLQKDPEERPSIAQI 252
>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 = 51.0 bits (122), Expect = 1e-08
Identities = 28/83 (33%), Positives = 45/83 (54%), Gaps = 10/83 (12%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGL-TDLEVLENISHLHADDGEFIYLPTPQ-TTK 84
+T +SDVWS+G+ LWEI +L PY G+ D + + I E + +P+
Sbjct: 293 YTFESDVWSYGILLWEIFSLG-SSPYPGMPVDSKFYKMIK-------EGYRMLSPECAPS 344
Query: 85 DILDLMNECWKRSPTERPSFTEI 107
++ D+M CW P +RP+F +I
Sbjct: 345 EMYDIMKSCWDADPLKRPTFKQI 367
>gnl|CDD|140293 PTZ00267, PTZ00267, NIMA-related protein kinase; Provisional.
Length = 478
Score = 50.8 bits (121), Expect = 2e-08
Identities = 26/95 (27%), Positives = 54/95 (56%), Gaps = 11/95 (11%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTK 84
++++ K+D+WS GV L+E+L L HRP++G + E+++ + + G++ P P +
Sbjct: 246 KRYSKKADMWSLGVILYELLTL--HRPFKGPSQREIMQQVLY-----GKYDPFPCP-VSS 297
Query: 85 DILDLMNECWKRSPTERPSFTEIHLFLQRKNLGYV 119
+ L++ ++P RP+ ++ L + L YV
Sbjct: 298 GMKALLDPLLSKNPALRPTTQQL---LHTEFLKYV 329
>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 = 49.9 bits (119), Expect = 2e-08
Identities = 31/88 (35%), Positives = 42/88 (47%), Gaps = 11/88 (12%)
Query: 28 TTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDIL 87
T S+VW+ GVTLWE+ A +PY L+D EVL H + + L PQ
Sbjct: 186 TKPSNVWALGVTLWELFENAA-QPYSHLSDREVLN-----HVIKDQQVKLFKPQLELPYS 239
Query: 88 DLMNE----CWKRSPTERPSFTEIHLFL 111
+ E CW SP +R + E+H L
Sbjct: 240 ERWYEVLQFCW-LSPEKRATAEEVHRLL 266
>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 = 49.9 bits (119), Expect = 3e-08
Identities = 32/88 (36%), Positives = 48/88 (54%), Gaps = 11/88 (12%)
Query: 28 TTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDIL 87
T +S+VWS GVT+WE+ L +PY L+D +VL + + + LP P+ +
Sbjct: 187 TKESNVWSLGVTIWELFELG-SQPYRHLSDEQVLT-----YTVREQQLKLPKPRLKLPLS 240
Query: 88 D----LMNECWKRSPTERPSFTEIHLFL 111
D +M CW + P +RPS E+HL L
Sbjct: 241 DRWYEVMQFCWLQ-PEQRPSAEEVHLLL 267
>gnl|CDD|165291 PHA02988, PHA02988, hypothetical protein; Provisional.
Length = 283
Score = 49.7 bits (119), Expect = 4e-08
Identities = 26/86 (30%), Positives = 42/86 (48%), Gaps = 7/86 (8%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
++T K D++S GV LWEI P+E LT E+ + I ++ ++ + L P K
Sbjct: 198 EYTIKDDIYSLGVVLWEI--FTGKIPFENLTTKEIYDLI--INKNNSLKLPLDCPLEIKC 253
Query: 86 ILDLMNECWKRSPTERPSFTEIHLFL 111
I++ C +RP+ EI L
Sbjct: 254 IVE---ACTSHDSIKRPNIKEILYNL 276
>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 = 47.2 bits (112), Expect = 3e-07
Identities = 28/97 (28%), Positives = 46/97 (47%), Gaps = 17/97 (17%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILN------------LARHRPYEGLTDLEVLENISHLHAD 70
+ KF SDVWSFGVTL+E+L L P G + L + +
Sbjct: 185 IQSKFYIASDVWSFGVTLYELLTYCDSESSPMTLFLKMIGPTHGQMTVTRLVRV----LE 240
Query: 71 DGEFIYLPTPQTTKDILDLMNECWKRSPTERPSFTEI 107
+G+ + P P +++ LM +CW+ P++R +F +
Sbjct: 241 EGKRLPRP-PNCPEEVYQLMRKCWEFQPSKRTTFQNL 276
>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 = 46.0 bits (109), Expect = 7e-07
Identities = 26/88 (29%), Positives = 39/88 (44%), Gaps = 11/88 (12%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHA--------DDGEFIYL 77
KF+ SDVWSFGVTL+E+L + E++ + G L
Sbjct: 186 KFSYASDVWSFGVTLYELLTHCDSKQSPPKKFEEMIGPKQGQMTVVRLIELLERGM--RL 243
Query: 78 PTPQTT-KDILDLMNECWKRSPTERPSF 104
P P+ +++ LM CW+ RP+F
Sbjct: 244 PCPKNCPQEVYILMKNCWETEAKFRPTF 271
>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 = 45.4 bits (108), Expect = 9e-07
Identities = 30/96 (31%), Positives = 48/96 (50%), Gaps = 16/96 (16%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHR-PYEG-----LTDLEVLENISHLHADDGEFIYLPT 79
++ KSD+WS G++L E LA R PY E+L+ I + LP+
Sbjct: 175 DYSVKSDIWSLGLSLIE---LATGRFPYPPENDPPDGIFELLQYIV-----NEPPPRLPS 226
Query: 80 PQTTKDILDLMNECWKRSPTERPSFTEI--HLFLQR 113
+ + D D +N C + P ERPS+ E+ H F+++
Sbjct: 227 GKFSPDFQDFVNLCLIKDPRERPSYKELLEHPFIKK 262
>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 = 44.5 bits (106), Expect = 2e-06
Identities = 17/82 (20%), Positives = 29/82 (35%), Gaps = 40/82 (48%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
++ KSD+WS GV L+E+ +
Sbjct: 170 YYSEKSDIWSLGVILYEL----------------------------------------PE 189
Query: 86 ILDLMNECWKRSPTERPSFTEI 107
+ DL+ + ++ P +RPS EI
Sbjct: 190 LKDLIRKMLQKDPEKRPSAKEI 211
>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 = 44.8 bits (106), Expect = 2e-06
Identities = 29/82 (35%), Positives = 38/82 (46%), Gaps = 9/82 (10%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
T +D WSFG TL EI E L+ L E + D LP P +
Sbjct: 182 SLTIAADKWSFGTTLLEIC----SNGEEPLSTLSSSEKE-RFYQDQHR---LPMPDC-AE 232
Query: 86 ILDLMNECWKRSPTERPSFTEI 107
+ +L+N+CW PT+RPSF I
Sbjct: 233 LANLINQCWTYDPTKRPSFRAI 254
>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 = 44.0 bits (104), Expect = 4e-06
Identities = 26/93 (27%), Positives = 45/93 (48%), Gaps = 18/93 (19%)
Query: 27 FTTKSDVWSFGVTLWEILNLAR-----HRPYEGLTDLEVLENISHLHADDGEFIYLPTPQ 81
+ KSDVWS G+T+ E+ P++ L +V+E S LP +
Sbjct: 184 YDVKSDVWSLGITMIELATGRFPYDSWKTPFQQLK--QVVEEPSP---------QLPAEK 232
Query: 82 TTKDILDLMNECWKRSPTERPSFTEI--HLFLQ 112
+ + D +N+C K++ ERP++ E+ H F +
Sbjct: 233 FSPEFQDFVNKCLKKNYKERPNYPELLQHPFFE 265
>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 = 43.0 bits (102), Expect = 6e-06
Identities = 20/85 (23%), Positives = 40/85 (47%), Gaps = 8/85 (9%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT 82
H + KSD+WS G ++E+ A P+ L++ I +G+F +P +
Sbjct: 183 NHMSYDEKSDIWSLGCLIYEL--CALSPPFTARNQLQLASKIK-----EGKFRRIP-YRY 234
Query: 83 TKDILDLMNECWKRSPTERPSFTEI 107
+ ++ +++ P +RPS E+
Sbjct: 235 SSELNEVIKSMLNVDPDKRPSTEEL 259
>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 = 42.6 bits (101), Expect = 9e-06
Identities = 23/77 (29%), Positives = 40/77 (51%), Gaps = 10/77 (12%)
Query: 28 TTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT-TKDI 86
+T SD+WS G T+ E+ L + PY L + L I DD + P P+ + ++
Sbjct: 177 STASDIWSLGCTVIEL--LTGNPPYYDLNPMAALFRIVQ---DD----HPPLPEGISPEL 227
Query: 87 LDLMNECWKRSPTERPS 103
D + +C+++ P RP+
Sbjct: 228 KDFLMQCFQKDPNLRPT 244
>gnl|CDD|173765 cd08225, STKc_Nek5, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 5. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 5 (Nek5) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek5 subfamily is
one of a family of 11 different Neks (Nek1-11). 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. Neks 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. The specific function of Nek5
is unknown.
Length = 257
Score = 42.6 bits (100), Expect = 9e-06
Identities = 27/85 (31%), Positives = 47/85 (55%), Gaps = 10/85 (11%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLP-TPQT 82
+R + K+D+WS G L+E+ L +H P+EG N+ L + + P +P
Sbjct: 176 NRPYNNKTDIWSLGCVLYELCTL-KH-PFEG-------NNLHQLVLKICQGYFAPISPNF 226
Query: 83 TKDILDLMNECWKRSPTERPSFTEI 107
++D+ L+++ +K SP +RPS T I
Sbjct: 227 SRDLRSLISQLFKVSPRDRPSITSI 251
>gnl|CDD|132951 cd06620, PKc_MAPKK_Byr1_like, Catalytic domain of fungal Byr1-like
dual-specificity MAP kinase kinases. Protein kinases
(PKs), MAP kinase kinase (MAPKK) subfamily, fungal
Byr1-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 Byr1 from
Schizosaccharomyces pombe, FUZ7 from Ustilago maydis,
and related proteins. Byr1 phosphorylates its downstream
target, the MAPK Spk1, and is regulated by the MAPKKK
Byr2. The Spk1 cascade is pheromone-responsive and is
essential for sporulation and sexual differentiation in
fission yeast. FUZ7 phosphorylates and activates its
target, the MAPK Crk1, which is required in mating and
virulence in U. maydis.
Length = 284
Score = 42.5 bits (100), Expect = 1e-05
Identities = 24/92 (26%), Positives = 44/92 (47%), Gaps = 14/92 (15%)
Query: 26 KFTTKSDVWSFGVTLWEIL---------NLARHRPYEGLTDLEVLENISHLHADDGEFIY 76
K+T KSDVWS G+++ E+ N+ + + L++L+ I
Sbjct: 178 KYTVKSDVWSLGISIIELALGKFPFAFSNIDDDGQDDPMGILDLLQQIVQEPPPR----- 232
Query: 77 LPTPQTTKDILDLMNECWKRSPTERPSFTEIH 108
LP+ +D+ D ++ C + PTERP+ ++
Sbjct: 233 LPSSDFPEDLRDFVDACLLKDPTERPTPQQLC 264
>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 = 42.6 bits (100), Expect = 1e-05
Identities = 27/83 (32%), Positives = 38/83 (45%), Gaps = 9/83 (10%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTK 84
+ + +D WSFG TLWEI Y G L+ +G+ + L TP + K
Sbjct: 184 KNLSIAADKWSFGTTLWEIC-------YNGEIPLKDKTLAEKERFYEGQCM-LVTP-SCK 234
Query: 85 DILDLMNECWKRSPTERPSFTEI 107
++ DLM C P +RP F I
Sbjct: 235 ELADLMTHCMNYDPNQRPFFRAI 257
>gnl|CDD|173758 cd08218, STKc_Nek1, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 1. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 1 (Nek1) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek1 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. Nek1 is
associated with centrosomes throughout the cell cycle.
It is involved in the formation of primary cilium and in
the maintenance of centrosomes. It cycles through the
nucleus and may be capable of relaying signals between
the cilium and the nucleus. Nek1 is implicated in the
development of polycystic kidney disease, which is
characterized by benign polycystic tumors formed by
abnormal overgrowth of renal epithelial cells. It
appears also to be involved in DNA damage response, and
may be important for both correct DNA damage checkpoint
activation and DNA repair.
Length = 256
Score = 42.1 bits (99), Expect = 2e-05
Identities = 24/84 (28%), Positives = 43/84 (51%), Gaps = 8/84 (9%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTT 83
+R + KSD+W+ G L+E+ L +H G VL+ I G + + +
Sbjct: 175 NRPYNNKSDIWALGCVLYEMCTL-KHAFEAGNMKNLVLKIIR------GSYPPVS-SHYS 226
Query: 84 KDILDLMNECWKRSPTERPSFTEI 107
D+ +L+++ +KR+P +RPS I
Sbjct: 227 YDLRNLVSQLFKRNPRDRPSVNSI 250
>gnl|CDD|173764 cd08224, STKc_Nek6_Nek7, Catalytic domain of the Protein
Serine/Threonine Kinases, Never In Mitosis gene
A-related kinase 6 and 7. Serine/Threonine Kinases
(STKs), Never In Mitosis gene A (NIMA)-related kinase 6
(Nek6) and Nek7 subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The Nek6/7 subfamily is part 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. Nek6 and Nek7 are the shortest Neks,
consisting only of the catalytic domain and a very short
N-terminal extension. They show distinct expression
patterns and both appear to be downstream substrates of
Nek9. They are required for mitotic spindle formation
and cytokinesis. They may also be regulators of the p70
ribosomal S6 kinase.
Length = 267
Score = 41.3 bits (97), Expect = 3e-05
Identities = 30/120 (25%), Positives = 48/120 (40%), Gaps = 30/120 (25%)
Query: 10 DLTNGRIFKNKNS-LHRKFTT----------------KSDVWSFGVTLWEILNLARHRPY 52
DL GR F +K + H T KSD+WS G L+E+ L P+
Sbjct: 149 DLGLGRFFSSKTTAAHSLVGTPYYMSPERIHENGYNFKSDIWSLGCLLYEMAAL--QSPF 206
Query: 53 EG----LTDLEVLENISHLHADDGEFIYLPTPQTTKDILDLMNECWKRSPTERPSFTEIH 108
G L L + I ++ LP ++++ DL++ C P +RP + +
Sbjct: 207 YGDKMNLYSL--CKKIEK-----CDYPPLPADHYSEELRDLVSRCINPDPEKRPDISYVL 259
>gnl|CDD|132952 cd06621, PKc_MAPKK_Pek1_like, Catalytic domain of fungal Pek1-like
dual-specificity MAP kinase kinases. Protein kinases
(PKs), MAP kinase kinase(MAPKK) subfamily, fungal
Pek1-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 Pek1/Skh1 from
Schizosaccharomyces pombe and MKK2 from Saccharomyces
cerevisiae, and related proteins. Both fission yeast
Pek1 and baker's yeast MKK2 are components of the cell
integrity MAPK pathway. In fission yeast, Pek1
phosphorylates and activates the MAPK Pmk1/Spm1 and is
regulated by the MAPKKK Mkh1. In baker's yeast, the
pathway involves the MAPK Slt2, the MAPKKs MKK1 and
MKK2, and the MAPKKK Bck1. The cell integrity MAPK
cascade is activated by multiple stress conditions, and
is essential in cell wall construction, morphogenesis,
cytokinesis, and ion homeostasis.
Length = 287
Score = 40.9 bits (96), Expect = 4e-05
Identities = 27/88 (30%), Positives = 44/88 (50%), Gaps = 19/88 (21%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHR---PYEGLTDL---EVLENISH-----LHADDGEFI 75
++ SDVWS G+TL E+ A++R P EG L E+L I + L + G I
Sbjct: 180 YSITSDVWSLGLTLLEV---AQNRFPFPPEGEPPLGPIELLSYIVNMPNPELKDEPGNGI 236
Query: 76 YLPTPQTTKDILDLMNECWKRSPTERPS 103
+++ D + +C ++ PT RP+
Sbjct: 237 KW-----SEEFKDFIKQCLEKDPTRRPT 259
>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 = 40.8 bits (96), Expect = 4e-05
Identities = 26/94 (27%), Positives = 45/94 (47%), Gaps = 11/94 (11%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLARHR-PYEGL-TDLEVLENISHLHADDGEFIYLPTPQ 81
+ K+ ++DVWS G++L E LA + PY+ T+ EVL I + P
Sbjct: 192 NPKYDIRADVWSLGISLVE---LATGQFPYKNCKTEFEVLTKI----LQEEPPSLPPNEG 244
Query: 82 TTKDILDLMNECWKRSPTERPSFTEI--HLFLQR 113
+ D ++ C + +RP + E+ H F++R
Sbjct: 245 FSPDFCSFVDLCLTKDHRKRPKYRELLQHPFIRR 278
>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 = 41.0 bits (97), Expect = 4e-05
Identities = 24/93 (25%), Positives = 46/93 (49%), Gaps = 12/93 (12%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPY---EGLTDLEVLENISHLHADDGEFIYLPTPQ 81
++ +D+WS G+TL E L + P+ + E+++ I DG LP +
Sbjct: 175 ESYSYAADIWSLGLTLLECA-LGKF-PFLPPGQPSFFELMQAIC-----DGPPPSLPAEE 227
Query: 82 TTKDILDLMNECWKRSPTERPSFTEI--HLFLQ 112
+ + D ++ C ++ P +RPS E+ H F++
Sbjct: 228 FSPEFRDFISACLQKDPKKRPSAAELLQHPFIK 260
>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 = 39.9 bits (94), Expect = 8e-05
Identities = 20/81 (24%), Positives = 37/81 (45%), Gaps = 8/81 (9%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDI 86
+ K+D+WS G+T E+ PY L ++ L I+ L P+ D
Sbjct: 174 YDYKADIWSLGITAIELAE--GKPPYSELPPMKALFKIATNG-----PPGLRNPEKWSDE 226
Query: 87 L-DLMNECWKRSPTERPSFTE 106
D + +C +++P +RP+ +
Sbjct: 227 FKDFLKKCLQKNPEKRPTAEQ 247
>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 = 39.8 bits (93), Expect = 9e-05
Identities = 27/83 (32%), Positives = 40/83 (48%), Gaps = 9/83 (10%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTK 84
+ + +D WSFG TLWEI + +P L + L+ H LP P+ T
Sbjct: 180 QNLSLAADKWSFGTTLWEIFS-GGDKPLSALDSQKKLQFYEDRHQ-------LPAPKWT- 230
Query: 85 DILDLMNECWKRSPTERPSFTEI 107
++ +L+N+C P RPSF I
Sbjct: 231 ELANLINQCMDYEPDFRPSFRAI 253
>gnl|CDD|132950 cd06619, PKc_MKK5, Catalytic domain of the dual-specificity Protein
Kinase, MAP kinase kinase 5. Protein kinases (PKs), MAP
kinase kinase 5 (MKK5) 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 MKK5 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). MKK5, also referred to as MEK5, is a
dual-specificity PK that phosphorylates its downstream
target, extracellular signal-regulated kinase 5 (ERK5),
on specific threonine and tyrosine residues. MKK5 is
activated by MEKK2 and MEKK3 in response to mitogenic
and stress stimuli. The ERK5 cascade promotes cell
proliferation, differentiation, neuronal survival, and
neuroprotection. This cascade plays an essential role in
heart development. Mice deficient in either ERK5 or MKK5
die around embryonic day 10 due to cardiovascular
defects including underdevelopment of the myocardium. In
addition, MKK5 is associated with metastasis and
unfavorable prognosis in prostate cancer.
Length = 279
Score = 39.9 bits (93), Expect = 1e-04
Identities = 32/112 (28%), Positives = 51/112 (45%), Gaps = 22/112 (19%)
Query: 15 RIFKNKNSLHRKFTTKSDVWSFGVTLWEILNLARHRPYE-------GLTDLEVLENISHL 67
RI + +H SDVWS G++ E L L R PY L L++L+ I
Sbjct: 164 RISGEQYGIH------SDVWSLGISFME-LALGRF-PYPQIQKNQGSLMPLQLLQCIV-- 213
Query: 68 HADDGEFIYLPTPQTTKDILDLMNECWKRSPTERPSFTEI--HLFLQRKNLG 117
D + LP Q ++ + + +C ++ P ERP+ + H F+ + N G
Sbjct: 214 ---DEDPPVLPVGQFSEKFVHFITQCMRKQPKERPAPENLMDHPFIVQYNDG 262
>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 = 39.1 bits (91), Expect = 2e-04
Identities = 30/90 (33%), Positives = 46/90 (51%), Gaps = 13/90 (14%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHR-PYEGLTDLEVLENI-SHLHAD-DGEFIYLPTPQTT 83
+T +SDVWS G++ IL +A R PY E NI + L A DG+ LP +
Sbjct: 184 YTVQSDVWSLGLS---ILEMALGRYPYPP----ETYANIFAQLSAIVDGDPPTLP-SGYS 235
Query: 84 KDILDLMNECWKRSPTERPSFTEI--HLFL 111
D D + +C + P RP++ ++ H +L
Sbjct: 236 DDAQDFVAKCLNKIPNRRPTYAQLLEHPWL 265
>gnl|CDD|133207 cd05076, PTK_Tyk2_rpt1, Pseudokinase (repeat 1) domain of the
Protein Tyrosine Kinase, Tyrosine kinase 2. Protein
Tyrosine Kinase (PTK) family; Tyrosine kinase 2 (Tyk2);
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. 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 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). 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 = 274
Score = 39.1 bits (91), Expect = 2e-04
Identities = 30/90 (33%), Positives = 39/90 (43%), Gaps = 13/90 (14%)
Query: 18 KNKNSLHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYL 77
NSL T +D WSFG TL EI P + T E H L
Sbjct: 193 PGGNSLS----TAADKWSFGTTLLEIC-FDGEVPLKERTPSEKERFYEKKHR-------L 240
Query: 78 PTPQTTKDILDLMNECWKRSPTERPSFTEI 107
P P + K++ L+++C PT+RPSF I
Sbjct: 241 PEP-SCKELATLISQCLTYEPTQRPSFRTI 269
>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 = 38.2 bits (89), Expect = 4e-04
Identities = 24/91 (26%), Positives = 45/91 (49%), Gaps = 9/91 (9%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
++ K DVWS G+T E LA +P L ++ + + H+ +D L + +
Sbjct: 190 QYDGKVDVWSLGITCIE---LAERKP--PLFNMNAMSALYHIAQNDSP--TLSSNDWSDY 242
Query: 86 ILDLMNECWKRSPTERPSFTEI--HLFLQRK 114
+ ++ C ++ P +RPS E+ H F+ R+
Sbjct: 243 FRNFVDSCLQKIPQDRPSSEELLKHRFVLRE 273
>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 = 38.1 bits (89), Expect = 4e-04
Identities = 23/92 (25%), Positives = 41/92 (44%), Gaps = 19/92 (20%)
Query: 24 HRKFTTKSDVWSFGVTLWEILNLAR-HRPYEGLTDLEVLENI-----SHLH--ADDGEFI 75
+ K+D+WSFG+T E LA PY ++VL L AD ++
Sbjct: 181 VHGYDFKADIWSFGITAIE---LATGAAPYSKYPPMKVLMLTLQNDPPSLETGADYKKY- 236
Query: 76 YLPTPQTTKDILDLMNECWKRSPTERPSFTEI 107
+K +++ C ++ P++RP+ E+
Sbjct: 237 -------SKSFRKMISLCLQKDPSKRPTAEEL 261
>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 = 38.0 bits (89), Expect = 5e-04
Identities = 24/94 (25%), Positives = 39/94 (41%), Gaps = 16/94 (17%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT--- 82
+ K D+WS G+ E+ PY L L I G +P +
Sbjct: 192 DYGPKVDIWSLGIMCIEMAE--GEPPYLREPPLRALFLI----TTKG----IPPLKNPEK 241
Query: 83 -TKDILDLMNECWKRSPTERPSFTEI--HLFLQR 113
+ + D +N+C + P +RPS E+ H FL++
Sbjct: 242 WSPEFKDFLNKCLVKDPEKRPSAEELLQHPFLKK 275
>gnl|CDD|173761 cd08221, STKc_Nek9, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 9. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 9 (Nek9) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek9 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. Nek9, also called
Nercc1, is primarily a cytoplasmic protein but can also
localize in the nucleus. It is involved in modulating
chromosome alignment and splitting during mitosis. It
interacts with the gamma-tubulin ring complex and the
Ran GTPase, and is implicated in microtubule
organization. Nek9 associates with FACT (FAcilitates
Chromatin Transcription) and modulates interphase
progression. It also interacts with Nek6, and Nek7,
during mitosis, resulting in their activation.
Length = 256
Score = 37.8 bits (88), Expect = 5e-04
Identities = 19/82 (23%), Positives = 42/82 (51%), Gaps = 8/82 (9%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
K+ KSD+W+ G L+E+L L R ++ L ++ I G + + + + +
Sbjct: 177 KYNFKSDIWALGCVLYELLTL--KRTFDATNPLNLVVKIVQ-----GNYTPVVSVY-SSE 228
Query: 86 ILDLMNECWKRSPTERPSFTEI 107
++ L++ ++ P +RP+ E+
Sbjct: 229 LISLVHSLLQQDPEKRPTADEV 250
>gnl|CDD|240344 PTZ00283, PTZ00283, serine/threonine protein kinase; Provisional.
Length = 496
Score = 37.9 bits (88), Expect = 6e-04
Identities = 23/79 (29%), Positives = 42/79 (53%), Gaps = 8/79 (10%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTK 84
+ ++ K+D++S GV L+E+L L RP++G E +E + H G + LP P +
Sbjct: 220 KPYSKKADMFSLGVLLYELLTL--KRPFDG----ENMEEVMH-KTLAGRYDPLP-PSISP 271
Query: 85 DILDLMNECWKRSPTERPS 103
++ +++ P RPS
Sbjct: 272 EMQEIVTALLSSDPKRRPS 290
>gnl|CDD|173768 cd08228, STKc_Nek6, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 6. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 6 (Nek6) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek6 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. Nek6 is required
for the transition from metaphase to anaphase. It also
plays important roles in mitotic spindle formation and
cytokinesis. Activated by Nek9 during mitosis, Nek6
phosphorylates Eg5, a kinesin that is important for
spindle bipolarity. Nek6 localizes to spindle
microtubules during metaphase and anaphase, and to the
midbody during cytokinesis.
Length = 267
Score = 37.3 bits (86), Expect = 8e-04
Identities = 22/90 (24%), Positives = 44/90 (48%), Gaps = 5/90 (5%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDI 86
+ KSD+WS G L+E+ L P+ G D L ++ + ++ LPT ++ +
Sbjct: 183 YNFKSDIWSLGCLLYEMAAL--QSPFYG--DKMNLFSLCQ-KIEQCDYPPLPTEHYSEKL 237
Query: 87 LDLMNECWKRSPTERPSFTEIHLFLQRKNL 116
+L++ C P +RP +H ++ ++
Sbjct: 238 RELVSMCIYPDPDQRPDIGYVHQIAKQMHV 267
>gnl|CDD|173762 cd08222, STKc_Nek11, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 11. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 11 (Nek11)
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
Nek11 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. Nek11 is involved, through direct
phosphorylation, in regulating the degradation of Cdc25A
(Cell Division Cycle 25 homolog A), which plays a role
in cell cycle progression and in activating cyclin
dependent kinases. Nek11 is activated by CHK1
(CHeckpoint Kinase 1) and may be involved in the G2/M
checkpoint. Nek11 may also play a role in the S-phase
checkpoint as well as in DNA replication and genotoxic
stress responses.
Length = 260
Score = 37.2 bits (86), Expect = 8e-04
Identities = 30/103 (29%), Positives = 48/103 (46%), Gaps = 9/103 (8%)
Query: 6 DLMRDLTNGRIFKNKNSL-HRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENI 64
DL T + + +L H+ + +KSD+WS G L+E+ LA +EG L V+ I
Sbjct: 160 DLATTFTGTPYYMSPEALKHQGYDSKSDIWSLGCILYEMCCLA--HAFEGQNFLSVVLRI 217
Query: 65 SHLHADDGEFIYLPTPQTTKDILDLMNECWKRSPTERPSFTEI 107
+G LP ++ + +M + P+ RPS EI
Sbjct: 218 V-----EGPTPSLPE-TYSRQLNSIMQSMLNKDPSLRPSAAEI 254
>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 = 0.001
Identities = 23/90 (25%), Positives = 41/90 (45%), Gaps = 12/90 (13%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPT--PQTT 83
++ +D+WS G T+ E+ + P+ L + + + + GE +P +
Sbjct: 179 EYGRAADIWSLGCTVIEMAT-GKP-PWSELGN--PMAALYKI-GSSGEPPEIPEHLSEEA 233
Query: 84 KDILDLMNECWKRSPTERPSFTEI--HLFL 111
KD L C +R P +RP+ E+ H FL
Sbjct: 234 KDFLRK---CLRRDPKKRPTADELLQHPFL 260
>gnl|CDD|132991 cd06917, STKc_NAK1_like, Catalytic domain of Fungal Nak1-like
Protein Serine/Threonine Kinases. Serine/threonine
kinases (STKs), Nak1 subfamily, catalytic (c) domain.
STKs catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The Nak1 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
Schizosaccharomyces pombe Nak1, Saccharomyces cerevisiae
Kic1p (kinase that interacts with Cdc31p) and related
proteins. Nak1 (also known as N-rich kinase 1), is
required by fission yeast for polarizing the tips of
actin cytoskeleton and is involved in cell growth, cell
separation, cell morphology and cell-cycle progression.
Kic1p is required by budding yeast for cell integrity
and morphogenesis. Kic1p interacts with Cdc31p, the
yeast homologue of centrin, and phosphorylates
substrates in a Cdc31p-dependent manner.
Length = 277
Score = 36.3 bits (84), Expect = 0.002
Identities = 19/83 (22%), Positives = 35/83 (42%), Gaps = 7/83 (8%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTK 84
+ + TK+D+WS G+T++E+ + PY + + I L +K
Sbjct: 177 KYYDTKADIWSLGITIYEMAT--GNPPYSDVDAFRAMMLIPKSKPPR-----LEDNGYSK 229
Query: 85 DILDLMNECWKRSPTERPSFTEI 107
+ + + C P ER S E+
Sbjct: 230 LLREFVAACLDEEPKERLSAEEL 252
>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 = 35.9 bits (83), Expect = 0.002
Identities = 20/83 (24%), Positives = 41/83 (49%), Gaps = 8/83 (9%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTK 84
R ++ KSD+WS G L+E+ A P+E + ++ + G++ +P P ++
Sbjct: 176 RPYSYKSDIWSLGCLLYEMATFA--PPFEARSMQDLRYKVQR-----GKYPPIP-PIYSQ 227
Query: 85 DILDLMNECWKRSPTERPSFTEI 107
D+ + + + P RP+ +I
Sbjct: 228 DLQNFIRSMLQVKPKLRPNCDKI 250
>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 = 36.2 bits (83), Expect = 0.002
Identities = 27/93 (29%), Positives = 46/93 (49%), Gaps = 15/93 (16%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT--- 82
++ K DVWS G+T E LA +P L ++ + + H+ +D PT Q+
Sbjct: 196 QYDGKVDVWSLGITCIE---LAERKP--PLFNMNAMSALYHIAQNDS-----PTLQSNEW 245
Query: 83 TKDILDLMNECWKRSPTERPSFTEI--HLFLQR 113
T ++ C ++ P ERP+ E+ H F++R
Sbjct: 246 TDSFRGFVDYCLQKIPQERPASAELLRHDFVRR 278
>gnl|CDD|173710 cd05620, STKc_nPKC_delta, Catalytic domain of the Protein
Serine/Threonine Kinase, Novel Protein Kinase C delta.
Serine/Threonine Kinases (STKs), Novel Protein Kinase C
(nPKC), delta isoform, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The nPKC 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. nPKCs are calcium-independent,
but require DAG (1,2-diacylglycerol) and
phosphatidylserine (PS) for activity. There are four
nPKC isoforms, delta, epsilon, eta, and theta. PKC-delta
plays a role in cell cycle regulation and programmed
cell death in many cell types. It slows down cell
proliferation, inducing cell cycle arrest and enhancing
cell differentiation. PKC-delta is also involved in the
regulation of transcription as well as immune and
inflammatory responses. It plays a central role in the
genotoxic stress response that leads to DNA
damaged-induced apoptosis.
Length = 316
Score = 35.7 bits (82), Expect = 0.003
Identities = 28/97 (28%), Positives = 43/97 (44%), Gaps = 20/97 (20%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQ---- 81
K+T D WSFGV L+E+ L P+ G + E+ E+I + TP
Sbjct: 172 KYTFSVDWWSFGVLLYEM--LIGQSPFHGDDEDELFESIR-----------VDTPHYPRW 218
Query: 82 TTKDILDLMNECWKRSPTERPSFT---EIHLFLQRKN 115
TK+ D++ + ++R PT R H F + N
Sbjct: 219 ITKESKDILEKLFERDPTRRLGVVGNIRGHPFFKTIN 255
>gnl|CDD|173759 cd08219, STKc_Nek3, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 3. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 3 (Nek3) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek3 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. Nek3 is primarily
localized in the cytoplasm and shows no cell
cycle-dependent changes in its activity. It is present
in the axons of neurons and affects morphogenesis and
polarity through its regulation of microtubule
acetylation. Nek3 modulates the signaling of the
prolactin receptor through its activation of Vav2 and
contributes to prolactin-mediated motility of breast
cancer cells.
Length = 255
Score = 35.3 bits (81), Expect = 0.003
Identities = 24/82 (29%), Positives = 41/82 (50%), Gaps = 10/82 (12%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTP-QTTKD 85
+ KSD+WS G L+E+ L +H P++ + +L + Y P P + +
Sbjct: 177 YNNKSDIWSLGCILYELCTL-KH-PFQA-------NSWKNLILKVCQGSYKPLPSHYSYE 227
Query: 86 ILDLMNECWKRSPTERPSFTEI 107
+ L+ + +KR+P RPS T I
Sbjct: 228 LRSLIKQMFKRNPRSRPSATTI 249
>gnl|CDD|132940 cd06609, STKc_MST3_like, Catalytic domain of Mammalian Ste20-like
protein kinase 3-like Protein Serine/Threonine Kinases.
Serine/threonine kinases (STKs), mammalian Ste20-like
protein kinase 3 (MST3)-like subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MST3-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 MST3, MST4,
STK25, Schizosaccharomyces pombe Nak1 and Sid1,
Saccharomyces cerevisiae sporulation-specific protein 1
(SPS1), and related proteins. Nak1 is required by
fission yeast for polarizing the tips of actin
cytoskeleton and is involved in cell growth, cell
separation, cell morphology and cell-cycle progression.
Sid1 is a component in the septation initiation network
(SIN) signaling pathway, and plays a role in
cytokinesis. SPS1 plays a role in regulating proteins
required for spore wall formation. MST4 plays a role in
mitogen-activated protein kinase (MAPK) signaling during
cytoskeletal rearrangement, morphogenesis, and
apoptosis. MST3 phosphorylates the STK NDR and may play
a role in cell cycle progression and cell morphology.
STK25 may play a role in the regulation of cell
migration and polarization.
Length = 274
Score = 34.5 bits (80), Expect = 0.006
Identities = 24/87 (27%), Positives = 39/87 (44%), Gaps = 9/87 (10%)
Query: 29 TKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDILD 88
K+D+WS G+T E+ P L + VL I + L + +K D
Sbjct: 177 EKADIWSLGITAIELAK--GEPPLSDLHPMRVLFLIPKNNPPS-----LEGNKFSKPFKD 229
Query: 89 LMNECWKRSPTERPSFTEI--HLFLQR 113
++ C + P ERPS E+ H F+++
Sbjct: 230 FVSLCLNKDPKERPSAKELLKHKFIKK 256
>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 = 34.7 bits (79), Expect = 0.006
Identities = 24/94 (25%), Positives = 48/94 (51%), Gaps = 15/94 (15%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTK- 84
++ K DVWS G+T E LA +P L ++ + + H+ ++ PT Q+ +
Sbjct: 200 QYDGKVDVWSLGITCIE---LAERKP--PLFNMNAMSALYHIAQNES-----PTLQSNEW 249
Query: 85 --DILDLMNECWKRSPTERPSFTEI--HLFLQRK 114
+ ++ C ++ P +RP+ E+ H+F+ R+
Sbjct: 250 SDYFRNFVDSCLQKIPQDRPTSEELLKHMFVLRE 283
>gnl|CDD|132946 cd06615, PKc_MEK, Catalytic domain of the dual-specificity Protein
Kinase, MAP/ERK Kinase. Protein kinases (PKs), MAP/ERK
kinase (MEK) 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 MEK 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). MEK1
and MEK2 are dual-specificity PKs that phosphorylate and
activate the downstream targets, ERK(extracellular
signal-regulated kinase) 1 and ERK2, on specific
threonine and tyrosine residues. The ERK cascade starts
with extracellular signals including growth factors,
hormones, and neurotransmitters, which act through
receptors and ion channels to initiate intracellular
signaling that leads to the activation at the MAPKKK
(Raf-1 or MOS) level, which leads to the transmission of
signals to MEK1/2, and finally to ERK1/2. The ERK
cascade plays an important role in cell proliferation,
differentiation, oncogenic transformation, and cell
cycle control, as well as in apoptosis and cell survival
under certain conditions. This cascade has also been
implicated in synaptic plasticity, migration,
morphological determination, and stress response
immunological reactions. Gain-of-function mutations in
genes encoding ERK cascade proteins, including MEK1/2,
cause cardiofaciocutaneous (CFC) syndrome, a condition
leading to multiple congenital anomalies and mental
retardation in patients.
Length = 308
Score = 34.3 bits (79), Expect = 0.008
Identities = 28/120 (23%), Positives = 48/120 (40%), Gaps = 33/120 (27%)
Query: 26 KFTTKSDVWSFGVTLWEI--------------LNLARHRPYEGLTDLEVLENISHLHADD 71
+T +SD+WS G++L E+ L RP E +S H D
Sbjct: 174 HYTVQSDIWSLGLSLVEMAIGRYPIPPPDAKELEAMFGRPVSEGEAKESHRPVSG-HPPD 232
Query: 72 G----------EFIY------LPTPQTTKDILDLMNECWKRSPTERPSFTEI--HLFLQR 113
++I LP+ + + D +++C K++P ER E+ H F++R
Sbjct: 233 SPRPMAIFELLDYIVNEPPPKLPSGAFSDEFQDFVDKCLKKNPKERADLKELTKHPFIKR 292
>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 = 33.9 bits (78), Expect = 0.009
Identities = 26/88 (29%), Positives = 39/88 (44%), Gaps = 12/88 (13%)
Query: 30 KSDVWSFGVTLWEILNLARHR-PYEGLTDLEVLENISHLHADDGEFIYLPTPQT-TKDIL 87
K+D+WS G+TL E LA+ P+ L + VL I E L P +
Sbjct: 188 KADIWSLGITLIE---LAQMEPPHHELNPMRVLLKIL-----KSEPPTLDQPSKWSSSFN 239
Query: 88 DLMNECWKRSPTERPSFTEI--HLFLQR 113
D + C + P +RP+ E+ H F+
Sbjct: 240 DFLKSCLVKDPDDRPTAAELLKHPFVSD 267
>gnl|CDD|132960 cd06629, STKc_MAPKKK_Bck1_like, Catalytic domain of fungal
Bck1-like MAP Kinase Kinase Kinases. Serine/threonine
kinases (STKs), mitogen-activated protein kinase (MAPK)
kinase kinase (MAPKKK) subfamily, fungal Bck1-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
Saccharomyces cerevisiae Bck1 and Schizosaccharomyces
pombe Mkh1, 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. Budding
yeast Bck1 is part of the cell integrity MAPK pathway,
which is activated by stresses and aggressions to the
cell wall. The MAPKKK Bck1, MAPKKs Mkk1 and Mkk2, and
the MAPK Slt2 make up the cascade that is important in
the maintenance of cell wall homeostasis. Fission yeast
Mkh1 is involved in MAPK cascades regulating cell
morphology, cell wall integrity, salt resistance, and
filamentous growth in response to stress.
Length = 272
Score = 34.0 bits (78), Expect = 0.010
Identities = 24/93 (25%), Positives = 41/93 (44%), Gaps = 9/93 (9%)
Query: 22 SLHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLP--T 79
S + ++ K D+WS G + E+ A RP+ +D E + + L P +
Sbjct: 184 SYSQGYSAKVDIWSLGCVVLEM--FAGRRPW---SDEEAIAAMFKLGNKRSAPPIPPDVS 238
Query: 80 PQTTKDILDLMNECWKRSPTERPSFTEI--HLF 110
+ LD +N C+ +P RP+ E+ H F
Sbjct: 239 MNLSPVALDFLNACFTINPDNRPTARELLQHPF 271
>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 = 33.6 bits (77), Expect = 0.013
Identities = 17/78 (21%), Positives = 34/78 (43%), Gaps = 8/78 (10%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTK 84
+ + KSDVW+ GV L+E P++ ++ I G F + ++
Sbjct: 176 KPYNEKSDVWALGVVLYEC--CTGKHPFDANNQGALILKIIR-----GVFPPVSQM-YSQ 227
Query: 85 DILDLMNECWKRSPTERP 102
+ L+++C + +RP
Sbjct: 228 QLAQLIDQCLTKDYRQRP 245
>gnl|CDD|173769 cd08229, STKc_Nek7, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 7. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 7 (Nek7) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek7 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. Nek7 is required
for mitotic spindle formation and cytokinesis. It is
enriched in the centrosome and is critical for
microtubule nucleation. Nek7 is activated by Nek9 during
mitosis, and may regulate the p70 ribosomal S6 kinase.
Length = 267
Score = 33.5 bits (76), Expect = 0.016
Identities = 30/121 (24%), Positives = 53/121 (43%), Gaps = 22/121 (18%)
Query: 10 DLTNGRIFKNKNS----------------LHRK-FTTKSDVWSFGVTLWEILNLARHRPY 52
DL GR F +K + +H + KSD+WS G L+E+ L P+
Sbjct: 149 DLGLGRFFSSKTTAAHSLVGTPYYMSPERIHENGYNFKSDIWSLGCLLYEMAAL--QSPF 206
Query: 53 EGLTDLEVLENISHLHADDGEFIYLPTPQTTKDILDLMNECWKRSPTERPSFTEIHLFLQ 112
G D L ++ + ++ LP+ ++++ L+N C P +RP T ++ +
Sbjct: 207 YG--DKMNLYSLCK-KIEQCDYPPLPSDHYSEELRQLVNMCINPDPEKRPDITYVYDVAK 263
Query: 113 R 113
R
Sbjct: 264 R 264
>gnl|CDD|173760 cd08220, STKc_Nek8, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 8. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 8 (Nek8) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek8 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. Nek8 contains an
N-terminal kinase catalytic domain and a C-terminal RCC1
(regulator of chromosome condensation) domain. A double
point mutation in Nek8 causes cystic kidney disease in
mice that genetically resembles human autosomal
recessive polycystic kidney disease (ARPKD). Nek8 is
also associated with a rare form of juvenile renal
cystic disease, nephronophthisis type 9. It has been
suggested that a defect in the ciliary localization of
Nek8 contributes to the development of cysts manifested
by these diseases.
Length = 256
Score = 33.3 bits (76), Expect = 0.020
Identities = 23/83 (27%), Positives = 41/83 (49%), Gaps = 8/83 (9%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTK 84
+ + KSD+W+ G L+E+ +L R L L VL+ +S A + +P +
Sbjct: 176 KPYNQKSDIWALGCVLYELASLKRAFEAANLPAL-VLKIMSGTFAPISDRY---SPDLRQ 231
Query: 85 DILDLMNECWKRSPTERPSFTEI 107
IL ++N P++RP ++I
Sbjct: 232 LILSMLN----LDPSKRPQLSQI 250
>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 = 33.1 bits (75), Expect = 0.024
Identities = 21/91 (23%), Positives = 45/91 (49%), Gaps = 9/91 (9%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
++ K DVWS G+T E LA +P L ++ + + H+ ++ L + ++
Sbjct: 190 QYDGKVDVWSLGITCIE---LAERKP--PLFNMNAMSALYHIAQNESPA--LQSGHWSEY 242
Query: 86 ILDLMNECWKRSPTERPSFTEI--HLFLQRK 114
+ ++ C ++ P +RP+ + H F+ R+
Sbjct: 243 FRNFVDSCLQKIPQDRPTSEVLLKHRFVLRE 273
>gnl|CDD|132962 cd06631, STKc_YSK4, Catalytic domain of the Protein
Serine/Threonine Kinase, Yeast Sps1/Ste20-related kinase
4. Serine/threonine kinases (STKs), yeast
Sps1/Ste20-related kinase 4 (YSK4) subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The YSK4 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. YSK4 is a
putative MAPKKK, whose mammalian gene has been isolated.
MAPKKKs (MKKKs or MAP3Ks) 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.
Length = 265
Score = 32.6 bits (74), Expect = 0.036
Identities = 26/84 (30%), Positives = 41/84 (48%), Gaps = 8/84 (9%)
Query: 30 KSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDILDL 89
KSD+WS G T++E +A +P L ++ L + ++ A G LP + +D
Sbjct: 188 KSDIWSIGCTVFE---MATGKP--PLASMDRLAAMFYIGAHRGLMPRLPD-SFSAAAIDF 241
Query: 90 MNECWKRSPTERPSFTEI--HLFL 111
+ C R ERPS ++ H FL
Sbjct: 242 VTSCLTRDQHERPSALQLLRHDFL 265
>gnl|CDD|173683 cd05592, STKc_nPKC_theta_delta, Catalytic domain of the Protein
Serine/Threonine Kinases, Novel Protein Kinase C theta
and delta. Serine/Threonine Kinases (STKs), Novel
Protein Kinase C (nPKC), theta and delta-like isoforms,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The nPKC 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.
nPKCs are calcium-independent, but require DAG
(1,2-diacylglycerol) and phosphatidylserine (PS) for
activity. There are four nPKC isoforms, delta, epsilon,
eta, and theta. PKC-theta is selectively expressed in
T-cells and plays an important and non-redundant role in
several aspects of T-cell biology. PKC-delta plays a
role in cell cycle regulation and programmed cell death
in many cell types.
Length = 316
Score = 32.5 bits (74), Expect = 0.042
Identities = 21/76 (27%), Positives = 40/76 (52%), Gaps = 9/76 (11%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
K+ D WSFGV L+E+ L P+ G + E+ ++I + + + P +K+
Sbjct: 172 KYNESVDWWSFGVLLYEM--LIGQSPFHGEDEDELFDSILN------DRPHFPR-WISKE 222
Query: 86 ILDLMNECWKRSPTER 101
D +++ ++R PT+R
Sbjct: 223 AKDCLSKLFERDPTKR 238
>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 = 32.0 bits (73), Expect = 0.058
Identities = 20/81 (24%), Positives = 40/81 (49%), Gaps = 9/81 (11%)
Query: 30 KSDVWSFGVTLWEILNLARHR-PYEGLTDLEVLENISHLHADDGEFIYLPTP--QTTKDI 86
+SDVWS G+TL+E +A + PY V + ++ + D I + + +
Sbjct: 190 RSDVWSLGITLYE---VATGKFPYPKWN--SVFDQLTQVVKGDPP-ILSNSEEREFSPSF 243
Query: 87 LDLMNECWKRSPTERPSFTEI 107
++ +N C + ++RP + E+
Sbjct: 244 VNFINLCLIKDESKRPKYKEL 264
>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 = 31.4 bits (72), Expect = 0.084
Identities = 17/81 (20%), Positives = 31/81 (38%), Gaps = 9/81 (11%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
SD+W+ G ++++ L P+ G + + I L E+ + P D
Sbjct: 198 PAGKSSDLWALGCIIYQM--LTGKPPFRGSNEYLTFQKILKL-----EYSFPPNF--PPD 248
Query: 86 ILDLMNECWKRSPTERPSFTE 106
DL+ + P +R E
Sbjct: 249 AKDLIEKLLVLDPQDRLGVNE 269
>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 = 0.11
Identities = 18/81 (22%), Positives = 35/81 (43%), Gaps = 7/81 (8%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDI 86
+ K+DVW+FG L+++ L P+ L + I + + LP ++D+
Sbjct: 190 YGEKADVWAFGCILYQMCTL--QPPFYSTNMLSLATKIV-----EAVYEPLPEGMYSEDV 242
Query: 87 LDLMNECWKRSPTERPSFTEI 107
D++ C RP ++
Sbjct: 243 TDVITSCLTPDAEARPDIIQV 263
>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 = 0.11
Identities = 13/35 (37%), Positives = 21/35 (60%), Gaps = 2/35 (5%)
Query: 32 DVWSFGVTLWEILNLARHRPYEGLTDLEVLENISH 66
D W+ GV L+E+ LA P+EG + E+ ++I
Sbjct: 178 DWWALGVLLYEM--LAGQSPFEGDDEDELFQSILE 210
>gnl|CDD|173660 cd05123, STKc_AGC, Catalytic domain of AGC family Protein
Serine/Threonine Kinases. Serine/Threonine Kinases
(STKs), AGC (Protein Kinases A, G and C) family,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The AGC 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 (PI3K). Members of
this family include cAMP-dependent Protein Kinase (PKA),
cGMP-dependent Protein Kinase (PKG), Protein Kinase C
(PKC), Protein Kinase B (PKB), G protein-coupled
Receptor Kinase (GRK), Serum- and Glucocorticoid-induced
Kinase (SGK), and 70 kDa ribosomal Protein S6 Kinase
(p70S6K or S6K), among others. AGC kinases share an
activation mechanism based on the phosphorylation of up
to three sites: the activation loop (A-loop), the
hydrophobic motif (HM) and the turn motif.
Phosphorylation at the A-loop is required of most AGC
kinases, which results in a disorder-to-order transition
of the A-loop. The ordered conformation results in the
access of substrates and ATP to the active site. A
subset of AGC kinases with C-terminal extensions
containing the HM also requires phosphorylation at this
site. Phosphorylation at the HM allows the C-terminal
extension to form an ordered structure that packs into
the hydrophobic pocket of the catalytic domain, which
then reconfigures the kinase into an active bi-lobed
state. In addition, growth factor-activated AGC kinases
such as PKB, p70S6K, RSK, MSK, PKC, and SGK, require
phosphorylation at the turn motif (also called tail or
zipper site), located N-terminal to the HM at the
C-terminal extension. AGC kinases regulate many cellular
processes including division, growth, survival,
metabolism, motility, and differentiation. Many are
implicated in the development of various human diseases.
Length = 250
Score = 31.0 bits (71), Expect = 0.12
Identities = 19/75 (25%), Positives = 31/75 (41%), Gaps = 9/75 (12%)
Query: 32 DVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDILDLMN 91
D WS GV L+E+ L P+ E+ E I L + P + + DL++
Sbjct: 175 DWWSLGVLLYEM--LTGKPPFYAEDRKEIYEKI--LKDP----LRFP-EFLSPEARDLIS 225
Query: 92 ECWKRSPTERPSFTE 106
++ PT+R
Sbjct: 226 GLLQKDPTKRLGSGG 240
>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 = 30.8 bits (69), Expect = 0.13
Identities = 25/90 (27%), Positives = 44/90 (48%), Gaps = 12/90 (13%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHR-PYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
+ +K+D+WS G+T E LA+ P+ L ++VL I + E Y +K
Sbjct: 178 YDSKADIWSLGITAIE---LAKGEPPHSELHPMKVLFLIPKNNPPTLEGNY------SKP 228
Query: 86 ILDLMNECWKRSPTERPSFTEI--HLFLQR 113
+ + + C + P+ RP+ E+ H F+ R
Sbjct: 229 LKEFVEACLNKEPSFRPTAKELLKHKFIVR 258
>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 = 30.8 bits (69), Expect = 0.14
Identities = 23/89 (25%), Positives = 38/89 (42%), Gaps = 10/89 (11%)
Query: 30 KSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQT-TKDILD 88
K+D+WS G+TL E+ + P+ L + VL I+ E L P + + D
Sbjct: 195 KADIWSLGITLIEMAQI--EPPHHELNPMRVLLKIA-----KSEPPTLSQPSKWSMEFRD 247
Query: 89 LMNECWKRSPTERPSFTEI--HLFLQRKN 115
+ + P RPS ++ H F+
Sbjct: 248 FLKTALDKHPETRPSAAQLLEHPFVSSVT 276
>gnl|CDD|173707 cd05616, STKc_cPKC_beta, Catalytic domain of the Protein
Serine/Threonine Kinase, Classical Protein Kinase C
beta. Serine/Threonine Kinases (STKs), Classical
Protein Kinase C (cPKC) subfamily, beta isoforms,
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.
The PKC beta isoforms (I and II), generated by
alternative splicing of a single gene, are
preferentially activated by hyperglycemia-induced DAG in
retinal tissues. This is implicated in diabetic
microangiopathy such as ischemia, neovascularization,
and abnormal vasodilator function. PKC-beta also plays
an important role in VEGF signaling. In addition,
glucose regulates proliferation in retinal endothelial
cells via PKC-betaI. PKC-beta is also being explored as
a therapeutic target in cancer. It contributes to tumor
formation and is involved in the tumor host mechanisms
of inflammation and angiogenesis.
Length = 323
Score = 30.7 bits (69), Expect = 0.15
Identities = 14/33 (42%), Positives = 22/33 (66%), Gaps = 2/33 (6%)
Query: 32 DVWSFGVTLWEILNLARHRPYEGLTDLEVLENI 64
D W+FGV L+E+ LA P+EG + E+ ++I
Sbjct: 183 DWWAFGVLLYEM--LAGQAPFEGEDEDELFQSI 213
>gnl|CDD|173709 cd05619, STKc_nPKC_theta, Catalytic domain of the Protein
Serine/Threonine Kinase, Novel Protein Kinase C theta.
Serine/Threonine Kinases (STKs), Novel Protein Kinase C
(nPKC), theta isoform, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The nPKC 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. nPKCs are calcium-independent,
but require DAG (1,2-diacylglycerol) and
phosphatidylserine (PS) for activity. There are four
nPKC isoforms, delta, epsilon, eta, and theta. PKC-theta
is selectively expressed in T-cells and plays an
important and non-redundant role in several aspects of
T-cell biology. Although T-cells also express other PKC
isoforms, PKC-theta is unique in that upon antigen
stimulation, it is translocated to the plasma membrane
at the immunological synapse, where it mediates signals
essential for T-cell activation. It is essential for
TCR-induced proliferation, cytokine production, T-cell
survival, and the differentiation and effector function
of T-helper (Th) cells, particularly Th2 and Th17.
PKC-theta is being developed as a therapeutic target for
Th2-mediated allergic inflammation and Th17-mediated
autoimmune diseases.
Length = 316
Score = 30.7 bits (69), Expect = 0.15
Identities = 16/42 (38%), Positives = 25/42 (59%), Gaps = 2/42 (4%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENI 64
L +K+ T D WSFGV L+E+ L P+ G + E+ ++I
Sbjct: 169 LGQKYNTSVDWWSFGVLLYEM--LIGQSPFHGHDEEELFQSI 208
>gnl|CDD|173502 PTZ00266, PTZ00266, NIMA-related protein kinase; Provisional.
Length = 1021
Score = 30.5 bits (68), Expect = 0.18
Identities = 25/100 (25%), Positives = 44/100 (44%), Gaps = 10/100 (10%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTK 84
+ + KSD+W+ G ++E+ + G T N S L ++ LP +K
Sbjct: 218 KSYDDKSDMWALGCIIYELCS--------GKTPFHKANNFSQLISELKRGPDLPIKGKSK 269
Query: 85 DILDLMNECWKRSPTERPSFTEIHLFLQRKNLGYVPPMNS 124
++ L+ S ERPS + + KN+G PP+ +
Sbjct: 270 ELNILIKNLLNLSAKERPSALQCLGYQIIKNVG--PPVGA 307
>gnl|CDD|132974 cd06643, STKc_SLK, Catalytic domain of the Protein Serine/Threonine
Kinase, Ste20-like kinase. Serine/threonine kinases
(STKs), Ste20-like kinase (SLK) subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The SLK 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. SLK promotes
apoptosis through apoptosis signal-regulating kinase 1
(ASK1) and the mitogen-activated protein kinase (MAPK)
p38. It acts as a MAPK kinase kinase (MAPKKK) by
phosphorylating ASK1, resulting in the phosphorylation
of p38. SLK also plays a role in mediating actin
reorganization. It is part of a microtubule-associated
complex that is targeted at adhesion sites, and is
required in focal adhesion turnover and in regulating
cell migration.
Length = 282
Score = 30.0 bits (67), Expect = 0.23
Identities = 21/88 (23%), Positives = 44/88 (50%), Gaps = 6/88 (6%)
Query: 20 KNSLHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPT 79
+ S R + K+DVWS G+TL E+ + P+ L + VL I+ + + P+
Sbjct: 178 ETSKDRPYDYKADVWSLGITLIEMAQI--EPPHHELNPMRVLLKIAK---SEPPTLAQPS 232
Query: 80 PQTTKDILDLMNECWKRSPTERPSFTEI 107
+ + + D + +C +++ R + T++
Sbjct: 233 -RWSSEFKDFLKKCLEKNVDARWTTTQL 259
>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 = 30.1 bits (66), Expect = 0.28
Identities = 19/88 (21%), Positives = 31/88 (35%), Gaps = 4/88 (4%)
Query: 20 KNSLHRKFTTKSDVWSFGVTLWEILN--LARHRPYEGLTDLEVLENISHLHADDGEFIYL 77
++ SD+WS G+TL+E+L + L+ I L
Sbjct: 181 LGLSLAYASSSSDIWSLGITLYELLTGLPPFEGEKNSSATSQTLKIILELPTPSLASPLS 240
Query: 78 P--TPQTTKDILDLMNECWKRSPTERPS 103
P +K DL+ + + P R S
Sbjct: 241 PSNPELISKAASDLLKKLLAKDPKNRLS 268
>gnl|CDD|132971 cd06640, STKc_MST4, Catalytic domain of the Protein
Serine/Threonine Kinase, Mammalian Ste20-like protein
kinase 4. Serine/threonine kinases (STKs), mammalian
Ste20-like protein kinase 4 (MST4) subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MST4 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. MST4 is sometimes
referred to as MASK (MST3 and SOK1-related kinase). It
plays a role in mitogen-activated protein kinase (MAPK)
signaling during cytoskeletal rearrangement,
morphogenesis, and apoptosis. It influences cell growth
and transformation by modulating the extracellular
signal-regulated kinase (ERK) pathway. MST4 may also
play a role in tumor formation and progression. It
localizes in the Golgi apparatus by interacting with the
Golgi matrix protein GM130 and may play a role in cell
migration.
Length = 277
Score = 29.6 bits (66), Expect = 0.30
Identities = 20/87 (22%), Positives = 44/87 (50%), Gaps = 10/87 (11%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDI 86
+ +K+D+WS G+T E LA+ P +D+ + + + ++ + T + +K
Sbjct: 178 YDSKADIWSLGITAIE---LAKGEPPN--SDMHPMRVLFLIPKNNPPTL---TGEFSKPF 229
Query: 87 LDLMNECWKRSPTERPSFTEI--HLFL 111
+ ++ C + P+ RP+ E+ H F+
Sbjct: 230 KEFIDACLNKDPSFRPTAKELLKHKFI 256
>gnl|CDD|173702 cd05611, STKc_Rim15_like, Catalytic domain of fungal Rim15-like
Protein Serine/Threonine Kinases. Serine/Threonine
Kinases (STKs), Microtubule-associated serine/threonine
(MAST) kinase subfamily, fungal Rim15-like kinases,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MAST kinase
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 Saccharomyces
cerevisiae Rim15, Schizosaccharomyces pombe cek1, and
similar fungal proteins. They contain a central
catalytic domain, which contains an insert relative to
MAST kinases. In addition, Rim15 contains a C-terminal
signal receiver (REC) domain while cek1 contains an
N-terminal PAS domain. Rim15 (or Rim15p) functions as a
regulator of meiosis. It acts as a downstream effector
of PKA and regulates entry into stationary phase (G0).
Thus, it plays a crucial role in regulating yeast
proliferation, differentiation, and aging. Cek1 may
facilitate progression of mitotic anaphase.
Length = 260
Score = 29.0 bits (65), Expect = 0.54
Identities = 19/78 (24%), Positives = 30/78 (38%), Gaps = 13/78 (16%)
Query: 28 TTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISH----LHADDGEFIYLPTPQTT 83
SD WS G ++E L + P+ T V +NI + EF +
Sbjct: 171 DKMSDWWSLGCVIFEF--LFGYPPFHAETPDAVFDNILSRRINWPEEVKEFC-------S 221
Query: 84 KDILDLMNECWKRSPTER 101
+ +DL+N P +R
Sbjct: 222 PEAVDLINRLLCMDPAKR 239
>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 = 0.69
Identities = 25/87 (28%), Positives = 37/87 (42%), Gaps = 12/87 (13%)
Query: 30 KSDVWSFGVTLWEILNLARHR-PYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDILD 88
K+D+WS G+T E LA+ P L + VL I E Q +K +
Sbjct: 181 KADIWSLGITAIE---LAKGEPPNSDLHPMRVLFLIPKNSPPTLE------GQYSKPFKE 231
Query: 89 LMNECWKRSPTERPSFTEI--HLFLQR 113
+ C + P RP+ E+ H F+ R
Sbjct: 232 FVEACLNKDPRFRPTAKELLKHKFITR 258
>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 = 28.5 bits (64), Expect = 0.75
Identities = 22/93 (23%), Positives = 36/93 (38%), Gaps = 31/93 (33%)
Query: 32 DVWSFGVTLWEILNLARHR-PYEGLTDLEVLENIS----------HLHADDGEFIYLPTP 80
D+WS G T +L +A + P+ L + + I HL + +FI
Sbjct: 184 DIWSLGCT---VLEMATGKPPWSQLEGVAAVFKIGRSKELPPIPDHLSDEAKDFILK--- 237
Query: 81 QTTKDILDLMNECWKRSPTERPSFTEI--HLFL 111
C +R P+ RP+ E+ H F+
Sbjct: 238 ------------CLQRDPSLRPTAAELLEHPFV 258
>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 = 28.4 bits (64), Expect = 0.85
Identities = 24/100 (24%), Positives = 41/100 (41%), Gaps = 26/100 (26%)
Query: 23 LHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPT--P 80
+ K+D+WS G+T E +A +P S +H F+ +P P
Sbjct: 172 QEIGYNNKADIWSLGITAIE---MAEGKP-----------PYSDIHPMRAIFM-IPNKPP 216
Query: 81 QT-------TKDILDLMNECWKRSPTERPSFTEI--HLFL 111
T + + D + +C + P ERPS ++ H F+
Sbjct: 217 PTLSDPEKWSPEFNDFVKKCLVKDPEERPSAIQLLQHPFI 256
>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 = 28.3 bits (64), Expect = 0.86
Identities = 21/104 (20%), Positives = 35/104 (33%), Gaps = 25/104 (24%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPY-EGLTDLEVLENISHL-----HADDGEFIYLP 78
R + D+WS G E+L P+ G +D++ L I + LP
Sbjct: 178 RHYGVGVDMWSVGCIFAELLL---RVPFLPGDSDIDQLGKIFEALGTPTEENWPGVTSLP 234
Query: 79 T----------------PQTTKDILDLMNECWKRSPTERPSFTE 106
P + D LDL+ +P +R + +
Sbjct: 235 DYVEFKPFPPTPLKQIFPAASDDALDLLQRLLTLNPNKRITARQ 278
>gnl|CDD|173763 cd08223, STKc_Nek4, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 4. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 4 (Nek4) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek4 subfamily is
one of a family of 11 different Neks (Nek1-11). 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. Neks 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. Nek4 is highly abundant in the
testis. Its specific function is unknown.
Length = 257
Score = 28.0 bits (62), Expect = 1.0
Identities = 22/92 (23%), Positives = 40/92 (43%), Gaps = 13/92 (14%)
Query: 16 IFKNKNSLHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFI 75
+F NK + KSDVW+ G ++E+ L + + L V I +G+
Sbjct: 173 LFSNK-----PYNYKSDVWALGCCVYEMATLKHAFNAKDMNSL-VYRII------EGKLP 220
Query: 76 YLPTPQTTKDILDLMNECWKRSPTERPSFTEI 107
+P + ++ +L+ + P +RPS I
Sbjct: 221 PMPK-DYSPELGELIATMLSKRPEKRPSVKSI 251
>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 = 28.2 bits (63), Expect = 1.0
Identities = 24/78 (30%), Positives = 36/78 (46%), Gaps = 11/78 (14%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQ-TT 83
R T +D WSFGV ++E+ L P++G E + I L A L PQ +
Sbjct: 173 RGHTQSADWWSFGVLMFEM--LTGSLPFQGKDRKETMTMI--LKAK------LGMPQFLS 222
Query: 84 KDILDLMNECWKRSPTER 101
+ L+ +KR+P R
Sbjct: 223 PEAQSLLRALFKRNPANR 240
>gnl|CDD|173681 cd05590, STKc_nPKC_eta, Catalytic domain of the Protein
Serine/Threonine Kinase, Novel Protein Kinase C eta.
Serine/Threonine Kinases (STKs), Novel Protein Kinase C
(nPKC), eta isoform, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
nPKC 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. nPKCs are calcium-independent,
but require DAG (1,2-diacylglycerol) and
phosphatidylserine (PS) for activity. There are four
nPKC isoforms, delta, epsilon, eta, and theta. PKC-eta
is predominantly expressed in squamous epithelia, where
it plays a crucial role in the signaling of cell-type
specific differentiation. It is also expressed in pro-B
cells and early-stage thymocytes, and acts as a key
regulator in early B-cell development. PKC-eta increases
glioblastoma multiforme (GBM) proliferation and
resistance to radiation, and is being developed as a
therapeutic target for the management of GBM.
Length = 320
Score = 28.3 bits (63), Expect = 1.1
Identities = 21/70 (30%), Positives = 37/70 (52%), Gaps = 9/70 (12%)
Query: 32 DVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDILDLMN 91
D W+ GV L+E+ L H P+E + ++ E I + E +Y PT ++D +D++
Sbjct: 178 DWWAMGVLLYEM--LCGHAPFEAENEDDLFEAIL-----NDEVVY-PT-WLSQDAVDILK 228
Query: 92 ECWKRSPTER 101
++PT R
Sbjct: 229 AFMTKNPTMR 238
>gnl|CDD|177557 PHA03209, PHA03209, serine/threonine kinase US3; Provisional.
Length = 357
Score = 27.9 bits (62), Expect = 1.2
Identities = 9/19 (47%), Positives = 16/19 (84%)
Query: 26 KFTTKSDVWSFGVTLWEIL 44
K+ +K+D+WS G+ L+E+L
Sbjct: 232 KYNSKADIWSAGIVLFEML 250
>gnl|CDD|173665 cd05574, STKc_phototropin_like, Catalytic domain of
Phototropin-like Protein Serine/Threonine Kinases.
Serine/Threonine Kinases (STKs), Phototropin-like
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
phototropin-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. Included in this subfamily
are plant phototropins and predominantly uncharacterized
fungal STKs whose catalytic domains resemble the
phototropin kinase domain. One protein from Neurospora
crassa is called nrc-2. Phototropins are blue-light
receptors that control responses such as phototropism,
stromatal opening, and chloroplast movement in order to
optimize the photosynthetic efficiency of plants. They
are light-activated STKs that contain an N-terminal
photosensory domain and a C-terminal catalytic domain.
The N-terminal domain contains two LOV (Light, Oxygen or
Voltage) domains that binds FMN. Photoexcitation of the
LOV domains results in autophosphorylation at multiple
sites and activation of the catalytic domain. Neurospora
crassa nrc-2 plays a role in growth and development by
controlling entry into the conidiation program.
Length = 316
Score = 27.2 bits (61), Expect = 2.2
Identities = 17/70 (24%), Positives = 31/70 (44%), Gaps = 7/70 (10%)
Query: 32 DVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDILDLMN 91
D W+ G+ L+E+ L P++G E NI E + +P + DL+
Sbjct: 214 DWWTLGILLYEM--LYGTTPFKGSNRDETFSNILK-----KEVTFPGSPPVSSSARDLIR 266
Query: 92 ECWKRSPTER 101
+ + P++R
Sbjct: 267 KLLVKDPSKR 276
>gnl|CDD|173678 cd05587, STKc_cPKC, Catalytic domain of the Protein
Serine/Threonine Kinase, Classical Protein Kinase C.
Serine/Threonine Kinases (STKs), Classical (or
Conventional) Protein Kinase C (cPKC) subfamily,
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 (PI3K). 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. cPKCs contain a
calcium-binding C2 region in their regulatory domain.
There are four cPKC isoforms, named alpha, betaI,
betaII, and gamma. cPKCs are potent kinases for
histones, myelin basic protein, and protamine. PKC-gamma
is mainly expressed in neuronal tissues. It plays a role
in protection from ischemia.
Length = 324
Score = 27.4 bits (61), Expect = 2.2
Identities = 13/33 (39%), Positives = 22/33 (66%), Gaps = 2/33 (6%)
Query: 32 DVWSFGVTLWEILNLARHRPYEGLTDLEVLENI 64
D W+FGV L+E+ LA P++G + E+ ++I
Sbjct: 183 DWWAFGVLLYEM--LAGQPPFDGEDEDELFQSI 213
>gnl|CDD|223895 COG0825, AccA, Acetyl-CoA carboxylase alpha subunit [Lipid
metabolism].
Length = 317
Score = 27.2 bits (61), Expect = 2.6
Identities = 13/35 (37%), Positives = 17/35 (48%), Gaps = 9/35 (25%)
Query: 38 VTLWEILNLARH--RPYEGLTDLEVLENISHLHAD 70
+T W+ + LARH RPY L+ I L D
Sbjct: 54 LTPWQRVQLARHPDRPY-------TLDYIELLFTD 81
>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 = 26.8 bits (60), Expect = 2.6
Identities = 17/73 (23%), Positives = 29/73 (39%), Gaps = 9/73 (12%)
Query: 31 SDVWSFGVTLWEILNLARHRPYEG--LTDLEVLENISHLHADDGEFIYLPTPQTTKDILD 88
D WS G+ L+E+L P+ +E+ +I + P D
Sbjct: 173 VDYWSLGILLYELLT--GRPPFGEDDEDPMEIYNDI----LKGNGKLEFPNYIDKAAK-D 225
Query: 89 LMNECWKRSPTER 101
L+ + +R+P ER
Sbjct: 226 LIKQLLRRNPEER 238
>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 = 26.9 bits (60), Expect = 3.2
Identities = 24/95 (25%), Positives = 37/95 (38%), Gaps = 24/95 (25%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTT--- 83
+ +SDVWS G+T E LA +P + +H F P T
Sbjct: 195 YDARSDVWSLGITAIE---LADGKP-----------PLCDMHPMRALFKIPRNPPPTLKS 240
Query: 84 -----KDILDLMNECWKRSPTERPSFTEI--HLFL 111
K D ++EC ++ +RP E+ H F+
Sbjct: 241 PENWSKKFNDFISECLIKNYEQRPFMEELLEHPFI 275
>gnl|CDD|224494 COG1578, COG1578, Uncharacterized conserved protein [Function
unknown].
Length = 285
Score = 26.9 bits (60), Expect = 3.3
Identities = 7/32 (21%), Positives = 14/32 (43%)
Query: 80 PQTTKDILDLMNECWKRSPTERPSFTEIHLFL 111
+ + L L++E + S + T IH +
Sbjct: 30 SRIMSEALKLLSEEYGESAVPAIAGTLIHREV 61
>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 = 26.5 bits (58), Expect = 4.5
Identities = 12/33 (36%), Positives = 22/33 (66%), Gaps = 2/33 (6%)
Query: 32 DVWSFGVTLWEILNLARHRPYEGLTDLEVLENI 64
D W++GV L+E+ LA P++G + E+ ++I
Sbjct: 183 DWWAYGVLLYEM--LAGQPPFDGEDEDELFQSI 213
>gnl|CDD|132985 cd06654, STKc_PAK1, Catalytic domain of the Protein
Serine/Threonine Kinase, p21-activated kinase 1.
Serine/threonine kinases (STKs), p21-activated kinase
(PAK) 1, 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 from higher
eukaryotes are classified into two groups (I and II),
according to their biochemical and structural features.
PAK1 belongs to group I. 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). PAK1 is
important in the regulation of many cellular processes
including cytoskeletal dynamics, cell motility, growth,
and proliferation. Although PAK1 has been regarded
mainly as a cytosolic protein, recent reports indicate
that PAK1 also exists in significant amounts in the
nucleus, where it is involved in transcription
modulation and in cell cycle regulatory events. PAK1 is
also involved in transformation and tumorigenesis. Its
overexpression, hyperactivation and increased nuclear
accumulation is correlated to breast cancer invasiveness
and progression. Nuclear accumulation is also linked to
tamoxifen resistance in breast cancer cells.
Length = 296
Score = 26.2 bits (57), Expect = 5.7
Identities = 27/101 (26%), Positives = 42/101 (41%), Gaps = 11/101 (10%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTK 84
+ + K D+WS G+ E++ PY L L +L A +G L P+
Sbjct: 191 KAYGPKVDIWSLGIMAIEMIE--GEPPYLNENPLRAL----YLIATNGT-PELQNPEKLS 243
Query: 85 DIL-DLMNECWKRSPTERPSFTEIHLFLQRKNLGYVPPMNS 124
I D +N C +R S E+ LQ + L P++S
Sbjct: 244 AIFRDFLNRCLDMDVEKRGSAKEL---LQHQFLKIAKPLSS 281
>gnl|CDD|132956 cd06625, STKc_MEKK3_like, Catalytic domain of MAP/ERK kinase kinase
3-like Protein Serine/Threonine Kinases.
Serine/threonine kinases (STKs), MAP/ERK kinase kinase 3
(MEKK3)-like subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The MEKK3-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
MEKK3, MEKK2, and related proteins, all containing an
N-terminal PB1 domain, which mediates oligomerization,
and a C-terminal catalytic domain. MEKK2 and MEKK3 are
mitogen-activated protein kinase (MAPK) kinase kinases
(MAPKKKs or MKKKs or MAP3Ks), proteins that
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.
MEKK2 and MEKK3 activate MEK5 (also called MKK5), which
activates extracellular signal-regulated kinase 5
(ERK5). The ERK5 cascade plays roles in promoting cell
proliferation, differentiation, neuronal survival, and
neuroprotection. MEKK3 plays an essential role in
embryonic angiogenesis and early heart development.
MEKK2 and MEKK3 can also activate the MAPKs, c-Jun
N-terminal kinase (JNK) and p38, through their
respective MAPKKs.
Length = 263
Score = 25.9 bits (57), Expect = 5.8
Identities = 19/78 (24%), Positives = 33/78 (42%), Gaps = 7/78 (8%)
Query: 30 KSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKDILDL 89
K+DVWS G T+ E+ L P+ + E + I + LP + D +
Sbjct: 187 KADVWSVGCTVVEM--LTEKPPW---AEFEAMAAIFKIATQPTNPQ-LP-SHVSPDARNF 239
Query: 90 MNECWKRSPTERPSFTEI 107
+ + + +RPS E+
Sbjct: 240 LRRTFVENAKKRPSAEEL 257
>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 = 26.1 bits (58), Expect = 5.8
Identities = 14/44 (31%), Positives = 22/44 (50%), Gaps = 4/44 (9%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRP-YEGLTDLEVLENISHL 67
R++TT D+W G E+ RP +G +D++ L I L
Sbjct: 202 RRYTTAVDIWGIGCVFAEMFT---RRPILQGKSDIDQLHLIFKL 242
>gnl|CDD|132981 cd06650, PKc_MEK1, Catalytic domain of the dual-specificity Protein
Kinase, MAP/ERK Kinase 1. Protein kinases (PKs),
MAP/ERK kinase (MEK) 1 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 MEK 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).
MEK1 is a dual-specificity PK that phosphorylates and
activates the downstream targets, extracellular
signal-regulated kinase (ERK) 1 and ERK2, on specific
threonine and tyrosine residues. The ERK cascade starts
with extracellular signals including growth factors,
hormones, and neurotransmitters, which act through
receptors and ion channels to initiate intracellular
signaling that leads to the activation at the MAPKKK
(Raf-1 or MOS) level, which leads to the transmission of
signals to MEK1, and finally to ERK1/2. The ERK cascade
plays an important role in cell proliferation,
differentiation, oncogenic transformation, and cell
cycle control, as well as in apoptosis and cell survival
under certain conditions. Gain-of-function mutations in
genes encoding ERK cascade proteins, including MEK1,
cause cardiofaciocutaneous (CFC) syndrome, a condition
leading to multiple congenital anomalies and mental
retardation in patients. MEK1 also plays a role in cell
cycle control.
Length = 333
Score = 26.1 bits (57), Expect = 6.2
Identities = 11/42 (26%), Positives = 21/42 (50%), Gaps = 2/42 (4%)
Query: 77 LPTPQTTKDILDLMNECWKRSPTERPSFTE--IHLFLQRKNL 116
LP+ + D +N+C ++P ER + +H F++R
Sbjct: 266 LPSGVFGAEFQDFVNKCLIKNPAERADLKQLMVHAFIKRSEA 307
>gnl|CDD|187563 cd05253, UDP_GE_SDE_e, UDP glucuronic acid epimerase, extended (e)
SDRs. This subgroup contains UDP-D-glucuronic acid
4-epimerase, an extended SDR, which catalyzes the
conversion of UDP-alpha-D-glucuronic acid to
UDP-alpha-D-galacturonic acid. This group has the SDR's
canonical catalytic tetrad and the TGxxGxxG NAD-binding
motif of the extended SDRs. Extended SDRs are distinct
from classical SDRs. In addition to the Rossmann fold
(alpha/beta folding pattern with a central beta-sheet)
core region typical of all SDRs, extended SDRs have a
less conserved C-terminal extension of approximately 100
amino acids. Extended SDRs are a diverse collection of
proteins, and include isomerases, epimerases,
oxidoreductases, and lyases; they typically have a
TGXXGXXG cofactor binding motif. SDRs are a functionally
diverse family of oxidoreductases that have a single
domain with a structurally conserved Rossmann fold, an
NAD(P)(H)-binding region, and a structurally diverse
C-terminal region. Sequence identity between different
SDR enzymes is typically in the 15-30% range; they
catalyze a wide range of activities including the
metabolism of steroids, cofactors, carbohydrates,
lipids, aromatic compounds, and amino acids, and act in
redox sensing. Classical SDRs have an TGXXX[AG]XG
cofactor binding motif and a YXXXK active site motif,
with the Tyr residue of the active site motif serving as
a critical catalytic residue (Tyr-151, human
15-hydroxyprostaglandin dehydrogenase numbering). In
addition to the Tyr and Lys, there is often an upstream
Ser and/or an Asn, contributing to the active site;
while substrate binding is in the C-terminal region,
which determines specificity. The standard reaction
mechanism is a 4-pro-S hydride transfer and proton relay
involving the conserved Tyr and Lys, a water molecule
stabilized by Asn, and nicotinamide. Atypical SDRs
generally lack the catalytic residues characteristic of
the SDRs, and their glycine-rich NAD(P)-binding motif is
often different from the forms normally seen in
classical or extended SDRs. Complex (multidomain) SDRs
such as ketoreductase domains of fatty acid synthase
have a GGXGXXG NAD(P)-binding motif and an altered
active site motif (YXXXN). Fungal type ketoacyl
reductases have a TGXXXGX(1-2)G NAD(P)-binding motif.
Length = 332
Score = 26.1 bits (58), Expect = 6.3
Identities = 21/98 (21%), Positives = 36/98 (36%), Gaps = 12/98 (12%)
Query: 2 DFTNDLMRDLTNG--RIFKNKNSLHRKFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLE 59
DFT + D+ G R + + ++ S + + N+ + P + + +E
Sbjct: 217 DFT--YIDDIVEGVVRALDTPAKPNPNWDAEAPDPSTSSAPYRVYNIGNNSPVKLMDFIE 274
Query: 60 VLENISHLHADDGEFIYLP-----TPQTTKDILDLMNE 92
LE A + YLP P+T DI L
Sbjct: 275 ALEKALGKKA---KKNYLPMQKGDVPETYADISKLQRL 309
>gnl|CDD|235580 PRK05724, PRK05724, acetyl-CoA carboxylase carboxyltransferase
subunit alpha; Validated.
Length = 319
Score = 25.9 bits (58), Expect = 6.6
Identities = 9/16 (56%), Positives = 11/16 (68%), Gaps = 2/16 (12%)
Query: 39 TLWEILNLARH--RPY 52
T W+ + LARH RPY
Sbjct: 56 TPWQKVQLARHPQRPY 71
>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 = 25.8 bits (57), Expect = 6.9
Identities = 17/53 (32%), Positives = 27/53 (50%), Gaps = 4/53 (7%)
Query: 25 RKFTTKSDVWSFGVTLWEILNLARHRP-YEGLTDLEVLENISHLHADDGEFIY 76
+TT D+W+ G L E+L H+P G +++E L+ I L E I+
Sbjct: 184 TTYTTAIDMWAVGCILAELL---AHKPLLPGKSEIEQLDLIIQLLGTPNESIW 233
>gnl|CDD|232949 TIGR00382, clpX, endopeptidase Clp ATP-binding regulatory subunit
(clpX). A member of the ATP-dependent proteases, ClpX
has ATP-dependent chaperone activity and is required
for specific ATP-dependent proteolytic activities
expressed by ClpPX. The gene is also found to be
involved in stress tolerance in Bacillus subtilis and
is essential for the efficient acquisition of genes
specifying type IA and IB restriction [Protein fate,
Protein folding and stabilization, Protein fate,
Degradation of proteins, peptides, and glycopeptides].
Length = 413
Score = 25.5 bits (56), Expect = 8.6
Identities = 9/20 (45%), Positives = 12/20 (60%)
Query: 69 ADDGEFIYLPTPQTTKDILD 88
++ E YLPTP+ K LD
Sbjct: 57 EEEFELSYLPTPKEIKAHLD 76
>gnl|CDD|165473 PHA03207, PHA03207, serine/threonine kinase US3; Provisional.
Length = 392
Score = 25.6 bits (56), Expect = 8.8
Identities = 7/18 (38%), Positives = 13/18 (72%)
Query: 27 FTTKSDVWSFGVTLWEIL 44
+ K+D+WS G+ L+E+
Sbjct: 264 YCAKTDIWSAGLVLFEMS 281
>gnl|CDD|218056 pfam04388, Hamartin, Hamartin protein. This family includes the
hamartin protein which is thought to function as a
tumour suppressor. The hamartin protein interacts with
the tuberin protein pfam03542. Tuberous sclerosis
complex (TSC) is an autosomal dominant disorder and is
characterized by the presence of hamartomas in many
organs, such as brain, skin, heart, lung, and kidney. It
is caused by mutation either TSC1 or TSC2 tumour
suppressor gene. TSC1 encodes a protein, hamartin,
containing two coiled-coil regions, which have been
shown to mediate binding to tuberin. The TSC2 gene codes
for tuberin pfam03542. These two proteins function
within the same pathway(s) regulating cell cycle, cell
growth, adhesion, and vesicular trafficking.
Length = 667
Score = 25.7 bits (56), Expect = 9.0
Identities = 10/22 (45%), Positives = 14/22 (63%)
Query: 84 KDILDLMNECWKRSPTERPSFT 105
K +LD +NEC + PT P+ T
Sbjct: 69 KYLLDKLNECLGKPPTRLPTLT 90
>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 = 25.6 bits (57), Expect = 9.1
Identities = 14/42 (33%), Positives = 22/42 (52%), Gaps = 2/42 (4%)
Query: 26 KFTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENISHL 67
++ + D+WS G L E+ ++G T+LE LE I L
Sbjct: 178 RYGPEVDMWSVGCILAELFL--GKPIFQGSTELEQLEKIFEL 217
>gnl|CDD|214801 smart00750, KIND, kinase non-catalytic C-lobe domain. It is an
interaction domain identified as being similar to the
C-terminal protein kinase catalytic fold (C lobe). Its
presence at the N terminus of signalling proteins and
the absence of the active-site residues in the catalytic
and activation loops suggest that it folds independently
and is likely to be non-catalytic. The occurrence of
KIND only in metazoa implies that it has evolved from
the catalytic protein kinase domain into an interaction
domain possibly by keeping the substrate-binding
features.
Length = 176
Score = 25.4 bits (56), Expect = 9.2
Identities = 24/88 (27%), Positives = 36/88 (40%), Gaps = 11/88 (12%)
Query: 28 TTKSDVWSFGVTLWEILN--LARHRPYEGLTDLEVLENISHLHADDGEFIYLPTPQTTKD 85
T K+D++S G+TL+E L+ L + E LE+L ++ + ADD +
Sbjct: 82 TEKADIYSLGITLYEALDYELPYNEERELSAILEIL--LNGMPADDPR--DRSNLEGVSA 137
Query: 86 IL---DLMNECWKRSPTERPSFTEIHLF 110
D M C R P R H
Sbjct: 138 ARSFEDFMRLCASRLPQRRE--AANHYL 163
>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 = 25.2 bits (55), Expect = 9.8
Identities = 13/38 (34%), Positives = 22/38 (57%), Gaps = 2/38 (5%)
Query: 27 FTTKSDVWSFGVTLWEILNLARHRPYEGLTDLEVLENI 64
+T K+D+WS G + E+L +H P+ T L+ + I
Sbjct: 189 YTRKADIWSLGCLVVEMLT-GKH-PFPDCTQLQAIFKI 224
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
0.321 0.137 0.430
Gapped
Lambda K H
0.267 0.0685 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 6,431,681
Number of extensions: 549856
Number of successful extensions: 843
Number of sequences better than 10.0: 1
Number of HSP's gapped: 708
Number of HSP's successfully gapped: 199
Length of query: 124
Length of database: 10,937,602
Length adjustment: 85
Effective length of query: 39
Effective length of database: 7,167,512
Effective search space: 279532968
Effective search space used: 279532968
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 (21.8 bits)
S2: 53 (24.3 bits)