RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy12228
(258 letters)
>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 = 198 bits (504), Expect = 1e-62
Identities = 80/130 (61%), Positives = 97/130 (74%), Gaps = 1/130 (0%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
AFG+V+ AEA G+ +TVAVKMLK+ ++ ++ DLVSEMEMMKMIG+H NIINLLG
Sbjct: 24 AFGQVVKAEAVGLDNPNETSTVAVKMLKDDATEKDLSDLVSEMEMMKMIGKHKNIINLLG 83
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVA 197
VCTQ+GPLYV+VE+A HGNLRDFLR RP Y SP LT+KDL+SFAYQVA
Sbjct: 84 VCTQEGPLYVVVEYAAHGNLRDFLRARRPPGEYASPDDPRPPEET-LTQKDLVSFAYQVA 142
Query: 198 NGMHYLQSRK 207
GM +L S+K
Sbjct: 143 RGMEFLASKK 152
>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 = 160 bits (406), Expect = 8e-48
Identities = 74/131 (56%), Positives = 93/131 (70%), Gaps = 3/131 (2%)
Query: 79 FGKVICAEANGILKQ--GIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLL 136
FG+V+ AEA GI K TVAVKMLK+ +D ++ DL+SEME+MK+IG+H NIINLL
Sbjct: 25 FGQVVRAEAYGIDKSRPDQTVTVAVKMLKDNATDKDLADLISEMELMKLIGKHKNIINLL 84
Query: 137 GVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQV 196
GVCTQ+GPLYVIVE+A GNLR+FLR RP + + L+ KDL+S AYQV
Sbjct: 85 GVCTQEGPLYVIVEYAAKGNLREFLRARRPPGPDYTFDITKVPEEQ-LSFKDLVSCAYQV 143
Query: 197 ANGMHYLQSRK 207
A GM YL+SR+
Sbjct: 144 ARGMEYLESRR 154
>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 = 156 bits (397), Expect = 7e-47
Identities = 55/133 (41%), Positives = 78/133 (58%), Gaps = 11/133 (8%)
Query: 76 KCAFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINL 135
+ AFG+V + G + T VAVK LKE S+ E D + E +MK +G H N++ L
Sbjct: 5 EGAFGEVYKGKLKGKDGKT--TEVAVKTLKEDASEEERKDFLKEARVMKKLG-HPNVVRL 61
Query: 136 LGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQ 195
LGVCT++ PLY+++E+ G+L D+LRK RP + L+ KDL+SFA Q
Sbjct: 62 LGVCTEEEPLYLVLEYMEGGDLLDYLRKSRPVFPSPEK--------STLSLKDLLSFAIQ 113
Query: 196 VANGMHYLQSRKV 208
+A GM YL S+K
Sbjct: 114 IAKGMEYLASKKF 126
>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 = 152 bits (386), Expect = 6e-45
Identities = 75/132 (56%), Positives = 92/132 (69%), Gaps = 3/132 (2%)
Query: 78 AFGKVICAEANGILKQ--GIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINL 135
FG+V+ AEA G+ K+ +T VAVKMLK ++ ++ DL+SEMEMMKMIG+H NIINL
Sbjct: 30 CFGQVVMAEAIGLDKEKPNRVTKVAVKMLKSDATEKDLSDLISEMEMMKMIGKHKNIINL 89
Query: 136 LGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQ 195
LG CTQDGPLYVIVE+A GNLR++LR RP G E L+ KDL+S AYQ
Sbjct: 90 LGACTQDGPLYVIVEYASKGNLREYLRARRP-PGMEYCYNPTQVPEEQLSFKDLVSCAYQ 148
Query: 196 VANGMHYLQSRK 207
VA GM YL S+K
Sbjct: 149 VARGMEYLASKK 160
>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 = 153 bits (388), Expect = 6e-45
Identities = 77/131 (58%), Positives = 92/131 (70%), Gaps = 3/131 (2%)
Query: 79 FGKVICAEANGILKQ--GIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLL 136
FG+V+ AEA GI K TVAVKMLK+ +D ++ DLVSEMEMMKMIG+H NIINLL
Sbjct: 25 FGQVVMAEAIGIDKDKPNKPVTVAVKMLKDDATDKDLSDLVSEMEMMKMIGKHKNIINLL 84
Query: 137 GVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQV 196
G CTQDGPLYV+VE+A GNLR++LR RP G + + LT KDL+S AYQV
Sbjct: 85 GACTQDGPLYVLVEYASKGNLREYLRARRP-PGMDYSFDTCKLPEEQLTFKDLVSCAYQV 143
Query: 197 ANGMHYLQSRK 207
A GM YL S+K
Sbjct: 144 ARGMEYLASQK 154
>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 = 146 bits (372), Expect = 3e-43
Identities = 49/133 (36%), Positives = 75/133 (56%), Gaps = 17/133 (12%)
Query: 76 KCAFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINL 135
+ AFG+V G + VAVK LKE S+ ++ + + E +M+ + H NI+ L
Sbjct: 9 EGAFGEVYKGTLKGKGDGKEVE-VAVKTLKEDASEQQIEEFLREARIMRKL-DHPNIVKL 66
Query: 136 LGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQ 195
LGVCT++ PL +++E+ P G+L D+LRK+RP L+ DL+SFA Q
Sbjct: 67 LGVCTEEEPLMIVMEYMPGGDLLDYLRKNRP---------------KELSLSDLLSFALQ 111
Query: 196 VANGMHYLQSRKV 208
+A GM YL+S+
Sbjct: 112 IARGMEYLESKNF 124
>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 = 147 bits (373), Expect = 5e-43
Identities = 77/131 (58%), Positives = 91/131 (69%), Gaps = 3/131 (2%)
Query: 79 FGKVICAEANGILKQGI--ITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLL 136
FG+V+ AEA GI K TVAVKMLK+ ++ ++ DLVSEMEMMKMIG+H NIINLL
Sbjct: 28 FGQVVMAEALGIDKDKPKEAVTVAVKMLKDDATEKDLSDLVSEMEMMKMIGKHKNIINLL 87
Query: 137 GVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQV 196
G CTQDGPLYVIVE+A GNLR++LR RP G E A +T KDL+S YQV
Sbjct: 88 GACTQDGPLYVIVEYASKGNLREYLRARRP-PGMEYSYDIARVPDEQMTFKDLVSCTYQV 146
Query: 197 ANGMHYLQSRK 207
A GM YL S+K
Sbjct: 147 ARGMEYLASQK 157
>gnl|CDD|197581 smart00219, TyrKc, Tyrosine kinase, catalytic domain.
Phosphotransferases. Tyrosine-specific kinase subfamily.
Length = 257
Score = 144 bits (365), Expect = 3e-42
Identities = 47/133 (35%), Positives = 76/133 (57%), Gaps = 18/133 (13%)
Query: 76 KCAFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINL 135
+ AFG+V + G + + VAVK LKE S+ ++ + + E +M+ + H N++ L
Sbjct: 9 EGAFGEVYKGKLKGKGGKKKVE-VAVKTLKEDASEQQIEEFLREARIMRKL-DHPNVVKL 66
Query: 136 LGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQ 195
LGVCT++ PLY+++E+ G+L +LRK+RP L+ DL+SFA Q
Sbjct: 67 LGVCTEEEPLYIVMEYMEGGDLLSYLRKNRP----------------KLSLSDLLSFALQ 110
Query: 196 VANGMHYLQSRKV 208
+A GM YL+S+
Sbjct: 111 IARGMEYLESKNF 123
>gnl|CDD|219530 pfam07714, Pkinase_Tyr, Protein tyrosine kinase.
Length = 258
Score = 140 bits (356), Expect = 9e-41
Identities = 56/131 (42%), Positives = 72/131 (54%), Gaps = 18/131 (13%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
AFG+V G +G T VAVK LKEG S+ E + + E +MK + H NI+ LLG
Sbjct: 11 AFGEVYKGTLKG-DGEGTETKVAVKTLKEGASEEEREEFLEEASIMKKL-SHPNIVRLLG 68
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVA 197
VCTQ PLY++ E+ P G+L DFLRKH LT KDL+ A Q+A
Sbjct: 69 VCTQGEPLYIVTEYMPGGDLLDFLRKHGEK----------------LTLKDLLQMALQIA 112
Query: 198 NGMHYLQSRKV 208
GM YL+S+
Sbjct: 113 KGMEYLESKNF 123
>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 = 123 bits (311), Expect = 7e-34
Identities = 57/129 (44%), Positives = 78/129 (60%), Gaps = 15/129 (11%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
AFGKV+ A A G+ K + VAVKMLK +E L+SE+++M +G H NI+NLLG
Sbjct: 47 AFGKVVEATAYGLSKSDAVMKVAVKMLKPTAHSSEREALMSELKIMSHLGNHENIVNLLG 106
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVA 197
CT GP+ VI E+ +G+L +FLR+ R S LT +DL+SF+YQVA
Sbjct: 107 ACTIGGPILVITEYCCYGDLLNFLRRKRES---------------FLTLEDLLSFSYQVA 151
Query: 198 NGMHYLQSR 206
GM +L S+
Sbjct: 152 KGMAFLASK 160
>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 = 118 bits (298), Expect = 4e-32
Identities = 60/137 (43%), Positives = 84/137 (61%), Gaps = 8/137 (5%)
Query: 79 FGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGV 138
FGKV+ A A + + TTVAVKMLKE S +E+ DL+SE ++K + H ++I L G
Sbjct: 13 FGKVVKATAFRLKGRAGYTTVAVKMLKENASSSELRDLLSEFNLLKQV-NHPHVIKLYGA 71
Query: 139 CTQDGPLYVIVEFAPHGNLRDFLRKHRP-SSGYESPLGSAYTNG------NVLTEKDLIS 191
C+QDGPL +IVE+A +G+LR FLR+ R Y G+ ++ LT DLIS
Sbjct: 72 CSQDGPLLLIVEYAKYGSLRSFLRESRKVGPSYLGSDGNRNSSYLDNPDERALTMGDLIS 131
Query: 192 FAYQVANGMHYLQSRKV 208
FA+Q++ GM YL K+
Sbjct: 132 FAWQISRGMQYLAEMKL 148
>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 = 116 bits (291), Expect = 1e-30
Identities = 66/175 (37%), Positives = 91/175 (52%), Gaps = 45/175 (25%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
AFGKVI A A GI K TVAVKMLKEG + +E L++E++++ IG H+N++NLLG
Sbjct: 19 AFGKVIQASAFGIEKSASCRTVAVKMLKEGATASEYKALMTELKILIHIGHHLNVVNLLG 78
Query: 138 VCTQ-DGPLYVIVEFAPHGNLRDFLRKHRPS-SGYESP---------------------- 173
CT+ GPL VIVE+ GNL ++LR R S Y +
Sbjct: 79 ACTKPGGPLMVIVEYCKFGNLSNYLRSKRECFSPYRNKSTRKREMKQKEGKKQRLDSVSS 138
Query: 174 LGSAYTNGNV---------------------LTEKDLISFAYQVANGMHYLQSRK 207
S+ ++G + LT +DLIS+++QVA GM +L SRK
Sbjct: 139 SQSSASSGFIEDKSLSDVEEDEEGDELYKEPLTLEDLISYSFQVARGMEFLASRK 193
>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 = 110 bits (275), Expect = 2e-28
Identities = 69/176 (39%), Positives = 94/176 (53%), Gaps = 46/176 (26%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
AFGKV+ A A GI K+ TVAVKMLKEG + +E L+SE++++ IG H+N++NLLG
Sbjct: 19 AFGKVVEASAFGIDKKSSCNTVAVKMLKEGATASEHKALMSELKILIHIGNHLNVVNLLG 78
Query: 138 VCTQ-DGPLYVIVEFAPHGNLRDFLRKHRPS----------------------------- 167
CT+ +GPL VIVEF +GNL +FLR R
Sbjct: 79 ACTKPNGPLMVIVEFCKYGNLSNFLRAKREFFSPYREKSPKQRGRFRAMVEQSRVDRRIE 138
Query: 168 SGYESPLGSAY---TNGNV-------------LTEKDLISFAYQVANGMHYLQSRK 207
+G S L S + T+G+ LT +DLI +++QVA GM +L SRK
Sbjct: 139 AGQASVLFSRFQPSTSGSTNPPQETDDLWKSPLTMEDLICYSFQVARGMEFLASRK 194
>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 = 109 bits (273), Expect = 4e-28
Identities = 67/181 (37%), Positives = 88/181 (48%), Gaps = 51/181 (28%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
AFG+VI A+A GI K TVAVKMLKEG + +E L+SE++++ IG H+N++NLLG
Sbjct: 19 AFGQVIEADAFGIDKTATCRTVAVKMLKEGATHSEHRALMSELKILIHIGHHLNVVNLLG 78
Query: 138 VCTQ-DGPLYVIVEFAPHGNLRDFLRKHR------------------------------- 165
CT+ GPL VIVEF GNL ++LR R
Sbjct: 79 ACTKPGGPLMVIVEFCKFGNLSNYLRSKRGEFVPYKTKDARFRQGKSGYGDISEDLKRRL 138
Query: 166 ---------PSSGY----------ESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSR 206
SSG+ E VLT +DLI +++QVA GM +L SR
Sbjct: 139 DSITSSQSSASSGFVEEKSLSDVEEEEAEQEDLYKKVLTLEDLICYSFQVAKGMEFLASR 198
Query: 207 K 207
K
Sbjct: 199 K 199
>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 = 107 bits (267), Expect = 1e-27
Identities = 57/132 (43%), Positives = 76/132 (57%), Gaps = 10/132 (7%)
Query: 79 FGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGV 138
FG+VI A I K G+ A+KMLKE S+ + D E+E++ +G H NIINLLG
Sbjct: 15 FGQVIRAM---IKKDGLKMNAAIKMLKEFASENDHRDFAGELEVLCKLGHHPNIINLLGA 71
Query: 139 CTQDGPLYVIVEFAPHGNLRDFLRKHR---PSSGYESPLGSAYTNGNVLTEKDLISFAYQ 195
C G LY+ +E+AP+GNL DFLRK R + G+A T LT + L+ FA
Sbjct: 72 CENRGYLYIAIEYAPYGNLLDFLRKSRVLETDPAFAKEHGTAST----LTSQQLLQFASD 127
Query: 196 VANGMHYLQSRK 207
VA GM YL ++
Sbjct: 128 VATGMQYLSEKQ 139
>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 = 102 bits (254), Expect = 7e-26
Identities = 53/132 (40%), Positives = 73/132 (55%), Gaps = 10/132 (7%)
Query: 79 FGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGV 138
FG+V+ A I K G+ A+K +KE S + D E+E++ +G H NIINLLG
Sbjct: 8 FGQVLKAR---IKKDGLRMDAAIKRMKEYASKDDHRDFAGELEVLCKLGHHPNIINLLGA 64
Query: 139 CTQDGPLYVIVEFAPHGNLRDFLRKHR---PSSGYESPLGSAYTNGNVLTEKDLISFAYQ 195
C G LY+ +E+APHGNL DFLRK R + +A T L+ + L+ FA
Sbjct: 65 CEHRGYLYLAIEYAPHGNLLDFLRKSRVLETDPAFAIANSTAST----LSSQQLLHFAAD 120
Query: 196 VANGMHYLQSRK 207
VA GM YL ++
Sbjct: 121 VARGMDYLSQKQ 132
>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 = 103 bits (257), Expect = 1e-25
Identities = 61/187 (32%), Positives = 84/187 (44%), Gaps = 58/187 (31%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
AFGKV+ A A G+ K TVAVKMLK E L+SE++++ +G HINI+NLLG
Sbjct: 47 AFGKVVEATAYGLFKSDAAMTVAVKMLKPSAHLTEREALMSELKVLSYLGNHINIVNLLG 106
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHR-------------------------------- 165
CT GP VI E+ +G+L +FLR+ R
Sbjct: 107 ACTVGGPTLVITEYCCYGDLLNFLRRKRDSFICPKHEDHAEAALYKNLLHQREMSCDSLN 166
Query: 166 ------PSSGYESPL---------GSAYTNGNVLTE-----------KDLISFAYQVANG 199
P Y P +Y + +V +E +DL+SF+YQVA G
Sbjct: 167 EYMDMKPGVSYVVPTKADKRRSVRSGSYIDQDVTSEILEEDELALDTEDLLSFSYQVAKG 226
Query: 200 MHYLQSR 206
M +L S+
Sbjct: 227 MSFLASK 233
>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 = 101 bits (254), Expect = 4e-25
Identities = 60/183 (32%), Positives = 88/183 (48%), Gaps = 55/183 (30%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLK-EGHSDAEMMDLVSEMEMMKMIGQHINIINLL 136
AFGKV+ A A G+ K+ + VAVKMLK H+D E L+SE++++ +GQH NI+NLL
Sbjct: 50 AFGKVVEATAFGLGKEDNVLRVAVKMLKASAHTD-EREALMSELKILSHLGQHKNIVNLL 108
Query: 137 GVCTQDGPLYVIVEFAPHGNLRDFLRKH-------------------------------R 165
G CT GP+ VI E+ +G+L +FLRK R
Sbjct: 109 GACTHGGPVLVITEYCCYGDLLNFLRKKAETFLNFVMALPEISETSSDYKNITLEKKYIR 168
Query: 166 PSSGYES----------PLGSAYTNGNVLTEK------------DLISFAYQVANGMHYL 203
SG+ S P+ S+ + + ++ DL+ F+ QVA GM +L
Sbjct: 169 SDSGFSSQGSDTYVEMRPVSSSSSQSSDSKDEEDTEDSWPLDLDDLLRFSSQVAQGMDFL 228
Query: 204 QSR 206
S+
Sbjct: 229 ASK 231
>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 = 98.7 bits (246), Expect = 1e-24
Identities = 50/143 (34%), Positives = 68/143 (47%), Gaps = 11/143 (7%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
AFGKV E + + VAVK LKE S+ D E E++ QH NI+ G
Sbjct: 17 AFGKVFLGECYHLEPENDKELVAVKTLKETASNDARKDFEREAELLTNF-QHENIVKFYG 75
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVA 197
VCT+ P ++ E+ HG+L FLR H P + + S LT L+ A Q+A
Sbjct: 76 VCTEGDPPIMVFEYMEHGDLNKFLRSHGPDAAFLKSPDSPMGE---LTLSQLLQIAVQIA 132
Query: 198 NGMHYLQSRKVGNDAVRFIGFDL 220
+GM YL S+ F+ DL
Sbjct: 133 SGMVYLASQ-------HFVHRDL 148
>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 = 98.7 bits (246), Expect = 1e-24
Identities = 48/132 (36%), Positives = 69/132 (52%), Gaps = 2/132 (1%)
Query: 77 CAFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLL 136
AFGKV E G ++ T+VA+K LKE + E E+M + QH NI+ LL
Sbjct: 16 GAFGKVYKGELTGPNERLSATSVAIKTLKENAEPKVQQEFRQEAELMSDL-QHPNIVCLL 74
Query: 137 GVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQV 196
GVCT++ P ++ E+ HG+L +FL ++ P S + G T + L D + A Q+
Sbjct: 75 GVCTKEQPTCMLFEYLAHGDLHEFLVRNSPHSDVGAESGDE-TVKSSLDCSDFLHIAIQI 133
Query: 197 ANGMHYLQSRKV 208
A GM YL S
Sbjct: 134 AAGMEYLSSHHF 145
>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 = 97.8 bits (243), Expect = 5e-24
Identities = 52/129 (40%), Positives = 73/129 (56%), Gaps = 4/129 (3%)
Query: 79 FGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGV 138
FG+V+ A I K G+ A+K +KE S + D E+E++ +G H NIINLLG
Sbjct: 20 FGQVLKAR---IKKDGLRMDAAIKRMKEYASKDDHRDFAGELEVLCKLGHHPNIINLLGA 76
Query: 139 CTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVAN 198
C G LY+ +E+APHGNL DFLRK R + A + + L+ + L+ FA VA
Sbjct: 77 CEHRGYLYLAIEYAPHGNLLDFLRKSRVLET-DPAFAIANSTASTLSSQQLLHFAADVAR 135
Query: 199 GMHYLQSRK 207
GM YL ++
Sbjct: 136 GMDYLSQKQ 144
>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 = 93.2 bits (232), Expect = 1e-22
Identities = 41/130 (31%), Positives = 67/130 (51%), Gaps = 8/130 (6%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
+FG V A G++K T VA+K + E S E ++ ++E +MK H +++ LLG
Sbjct: 18 SFGMVYEGLAKGVVKGEPETRVAIKTVNENASMRERIEFLNEASVMKEFNCH-HVVRLLG 76
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVA 197
V + P V++E G+L+ +LR RP + LG T + I A ++A
Sbjct: 77 VVSTGQPTLVVMELMAKGDLKSYLRSRRPEAENNPGLG-------PPTLQKFIQMAAEIA 129
Query: 198 NGMHYLQSRK 207
+GM YL ++K
Sbjct: 130 DGMAYLAAKK 139
>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 = 90.7 bits (225), Expect = 1e-21
Identities = 53/147 (36%), Positives = 73/147 (49%), Gaps = 8/147 (5%)
Query: 68 NSQEYVKI--KCAFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKM 125
N+ EYV+ + AFG+V A A G+L T VAVKMLKE S D E +M
Sbjct: 5 NNIEYVRDIGQGAFGRVFQARAPGLLPYEPFTMVAVKMLKEEASADMQADFQREAALMAE 64
Query: 126 IGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRP----SSGYESPLGSAYTNG 181
H NI+ LLGVC P+ ++ E+ +G+L +FLR P S + +
Sbjct: 65 F-DHPNIVKLLGVCAVGKPMCLLFEYMAYGDLNEFLRHRSPRAQCSLSHSTSSARKCGLN 123
Query: 182 NV-LTEKDLISFAYQVANGMHYLQSRK 207
+ L+ + + A QVA GM YL RK
Sbjct: 124 PLPLSCTEQLCIAKQVAAGMAYLSERK 150
>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 = 87.8 bits (217), Expect = 6e-20
Identities = 39/90 (43%), Positives = 61/90 (67%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
AFGKV+ A G+ + + VAVKMLK +E L+SE+++M +G H+NI+NLLG
Sbjct: 49 AFGKVVEGTAYGLSRSQPVMKVAVKMLKPTARSSEKQALMSELKIMTHLGPHLNIVNLLG 108
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPS 167
CT+ GP+Y+I E+ +G+L ++L K+R +
Sbjct: 109 ACTKSGPIYIITEYCFYGDLVNYLHKNRDN 138
Score = 33.5 bits (76), Expect = 0.087
Identities = 14/23 (60%), Positives = 17/23 (73%)
Query: 184 LTEKDLISFAYQVANGMHYLQSR 206
LT DL+SF YQVA GM +L S+
Sbjct: 234 LTTLDLLSFTYQVARGMEFLASK 256
>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 = 86.6 bits (214), Expect = 1e-19
Identities = 38/88 (43%), Positives = 60/88 (68%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
AFG+V+ A A+G+ VAVKMLK +E L+SE+++M +G H+NI+NLLG
Sbjct: 49 AFGRVVEATAHGLSHSQSTMKVAVKMLKSTARSSEKQALMSELKIMSHLGPHLNIVNLLG 108
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHR 165
CT+ GP+Y+I E+ +G+L D+L +++
Sbjct: 109 ACTKGGPIYIITEYCRYGDLVDYLHRNK 136
Score = 35.8 bits (82), Expect = 0.019
Identities = 13/24 (54%), Positives = 18/24 (75%)
Query: 183 VLTEKDLISFAYQVANGMHYLQSR 206
L+ DL+ F+YQVANGM +L S+
Sbjct: 235 ALSYMDLVGFSYQVANGMEFLASK 258
>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 = 84.7 bits (210), Expect = 2e-19
Identities = 45/140 (32%), Positives = 68/140 (48%), Gaps = 18/140 (12%)
Query: 79 FGKVICAEANGILK-----------QGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIG 127
FG+V EA+G+ VAVK+L+ SD D + E++++ +
Sbjct: 18 FGEVHLCEADGLQDFSEKAFAENDNADAPVLVAVKVLRPDASDNAREDFLKEVKILSRL- 76
Query: 128 QHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEK 187
NI LLGVCT D PL +I+E+ +G+L FL+KH + N L+
Sbjct: 77 SDPNIARLLGVCTVDPPLCMIMEYMENGDLNQFLQKH------VAETSGLACNSKSLSFS 130
Query: 188 DLISFAYQVANGMHYLQSRK 207
L+ A Q+A+GM YL+S
Sbjct: 131 TLLYMATQIASGMRYLESLN 150
>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 = 83.5 bits (207), Expect = 4e-19
Identities = 42/130 (32%), Positives = 62/130 (47%), Gaps = 24/130 (18%)
Query: 79 FGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGV 138
FG+V NG K VAVK LK G E + E ++MK + +H ++ L V
Sbjct: 19 FGEVWMGTWNGTTK------VAVKTLKPGTMSPE--AFLQEAQIMKKL-RHDKLVQLYAV 69
Query: 139 CTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVAN 198
C+++ P+Y++ E+ G+L DFL+ S G L L+ A Q+A
Sbjct: 70 CSEEEPIYIVTEYMSKGSLLDFLK---------SGEGKK------LRLPQLVDMAAQIAE 114
Query: 199 GMHYLQSRKV 208
GM YL+SR
Sbjct: 115 GMAYLESRNY 124
>gnl|CDD|214567 smart00220, S_TKc, Serine/Threonine protein kinases, catalytic
domain. Phosphotransferases. Serine or
threonine-specific kinase subfamily.
Length = 254
Score = 83.3 bits (207), Expect = 4e-19
Identities = 31/131 (23%), Positives = 61/131 (46%), Gaps = 23/131 (17%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
+FGKV A K VA+K++K+ + ++ E++++K + +H NI+ L
Sbjct: 11 SFGKVYLARDKKTGKL-----VAIKVIKKKKIKKDRERILREIKILKKL-KHPNIVRLYD 64
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVA 197
V + LY+++E+ G+L D L+K L+E + + Q+
Sbjct: 65 VFEDEDKLYLVMEYCEGGDLFDLLKKRGR-----------------LSEDEARFYLRQIL 107
Query: 198 NGMHYLQSRKV 208
+ + YL S+ +
Sbjct: 108 SALEYLHSKGI 118
>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 = 83.2 bits (206), Expect = 7e-19
Identities = 35/112 (31%), Positives = 56/112 (50%), Gaps = 19/112 (16%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGP--LYVIVEFAPHGN 156
VAVK L + D E+E+++ + H NI+ GVC + G L +I+E+ P G+
Sbjct: 36 VAVKSLNHSGEEQHRSDFEREIEILRTL-DHENIVKYKGVCEKPGGRSLRLIMEYLPSGS 94
Query: 157 LRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
LRD+L++HR + K L+ F+ Q+ GM YL S++
Sbjct: 95 LRDYLQRHRDQ----------------INLKRLLLFSSQICKGMDYLGSQRY 130
>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 = 83.1 bits (205), Expect = 9e-19
Identities = 49/133 (36%), Positives = 70/133 (52%), Gaps = 14/133 (10%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
AFGKV AE + +L + VAVK LKE A D E E++ ++ QH +I+ G
Sbjct: 17 AFGKVFLAECHNLLPEQDKMLVAVKALKEASESARQ-DFQREAELLTVL-QHQHIVRFYG 74
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPSS-----GYESPLGSAYTNGNVLTEKDLISF 192
VCT+ PL ++ E+ HG+L FLR H P + G + G LT +++
Sbjct: 75 VCTEGRPLLMVFEYMRHGDLNRFLRSHGPDAKILAGGEDVAPGQ-------LTLGQMLAI 127
Query: 193 AYQVANGMHYLQS 205
A Q+A+GM YL S
Sbjct: 128 ASQIASGMVYLAS 140
>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 = 81.4 bits (201), Expect = 2e-18
Identities = 50/144 (34%), Positives = 67/144 (46%), Gaps = 19/144 (13%)
Query: 78 AFGKVICAEANGILKQGI-ITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLL 136
AFG+V A IL G VAVK L++G +D E + + E +M H NI+ LL
Sbjct: 7 AFGEVYEGTATDILGPGSGPIRVAVKTLRKGATDQEKKEFLKEAHLMSNF-NHPNIVKLL 65
Query: 137 GVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQV 196
GVC + P Y+I+E G+L +LR R PL LT K+L+ V
Sbjct: 66 GVCLLNEPQYIIMELMEGGDLLSYLRDARVERFG-PPL---------LTLKELLDICLDV 115
Query: 197 ANGMHYLQSRKVGNDAVRFIGFDL 220
A G YL+ + FI DL
Sbjct: 116 AKGCVYLEQ-------MHFIHRDL 132
>gnl|CDD|173623 cd00180, PKc, Catalytic domain of Protein Kinases. Protein Kinases
(PKs), catalytic (c) domain. PKs catalyze the transfer
of the gamma-phosphoryl group from ATP to
serine/threonine or tyrosine residues on protein
substrates. The PK family is part of a larger
superfamily that includes the catalytic domains of RIO
kinases, aminoglycoside phosphotransferase, choline
kinase, phosphoinositide 3-kinase (PI3K), and
actin-fragmin kinase. PKs make up a large family of
serine/threonine kinases, protein tyrosine kinases
(PTKs), and dual-specificity PKs that phosphorylate both
serine/threonine and tyrosine residues of target
proteins. Majority of protein phosphorylation, about
95%, occurs on serine residues while only 1% occurs on
tyrosine residues. Protein phosphorylation is a
mechanism by which a wide variety of cellular proteins,
such as enzymes and membrane channels, are reversibly
regulated in response to certain stimuli. PKs often
function as components of signal transduction pathways
in which one kinase activates a second kinase, which in
turn, may act on other kinases; this sequential action
transmits a signal from the cell surface to target
proteins, which results in cellular responses. The PK
family is one of the largest known protein families with
more than 100 homologous yeast enzymes and 550 human
proteins. A fraction of PK family members are
pseudokinases that lack crucial residues for catalytic
activity. The mutiplicity of kinases allows for specific
regulation according to substrate, tissue distribution,
and cellular localization. PKs regulate many cellular
processes including proliferation, division,
differentiation, motility, survival, metabolism,
cell-cycle progression, cytoskeletal rearrangement,
immunity, and neuronal functions. Many kinases are
implicated in the development of various human diseases
including different types of cancer.
Length = 215
Score = 80.4 bits (199), Expect = 2e-18
Identities = 35/131 (26%), Positives = 65/131 (49%), Gaps = 22/131 (16%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
FG V A K+ VA+K++K+ S + + +L+ E+E++K + H NI+ L G
Sbjct: 5 GFGTVYLARDKKTGKK-----VAIKIIKKEDSSSLLEELLREIEILKKL-NHPNIVKLYG 58
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVA 197
V + LY+++E+ G+L+D L++ N L+E +++ Q+
Sbjct: 59 VFEDENHLYLVMEYCEGGSLKDLLKE----------------NEGKLSEDEILRILLQIL 102
Query: 198 NGMHYLQSRKV 208
G+ YL S +
Sbjct: 103 EGLEYLHSNGI 113
>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 = 80.7 bits (199), Expect = 4e-18
Identities = 39/109 (35%), Positives = 59/109 (54%), Gaps = 18/109 (16%)
Query: 98 TVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNL 157
TVAVK LKE E+ + + E +MK I +H N++ LLGVCT++ P Y+I EF +GNL
Sbjct: 33 TVAVKTLKE--DTMEVEEFLKEAAVMKEI-KHPNLVQLLGVCTREPPFYIITEFMTYGNL 89
Query: 158 RDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSR 206
D+LR+ N + L+ A Q+++ M YL+ +
Sbjct: 90 LDYLRE---------------CNRQEVNAVVLLYMATQISSAMEYLEKK 123
>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 = 77.1 bits (190), Expect = 1e-16
Identities = 37/110 (33%), Positives = 58/110 (52%), Gaps = 18/110 (16%)
Query: 97 TTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGN 156
T VAVK LK G D + D ++E ++MK + +H +I L VCT + P+Y++ E +G+
Sbjct: 31 TPVAVKTLKPGTMDPK--DFLAEAQIMKKL-RHPKLIQLYAVCTLEEPIYIVTELMKYGS 87
Query: 157 LRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSR 206
L ++L+ G L LI A QVA+GM YL+++
Sbjct: 88 LLEYLQG---------------GAGRALKLPQLIDMAAQVASGMAYLEAQ 122
>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 = 76.0 bits (187), Expect = 3e-16
Identities = 46/161 (28%), Positives = 79/161 (49%), Gaps = 21/161 (13%)
Query: 68 NSQEYVKI-KCAFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMI 126
N QE + + FG+V A+A GI ++G T V VK L++ + + E++M + +
Sbjct: 6 NLQEITTLGRGEFGEVFLAKAKGIEEEGGETLVLVKALQKTKDENLQSEFRRELDMFRKL 65
Query: 127 GQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTE 186
H N++ LLG+C + P Y+I+E+ G+L+ FLR + P L+
Sbjct: 66 -SHKNVVRLLGLCREAEPHYMILEYTDLGDLKQFLRATKSKDEKLKP--------PPLST 116
Query: 187 KDLISFAYQVANGMHYLQSRKVGNDAVRFIGFDL----CIL 223
K ++ Q+A GM +L + RF+ DL C++
Sbjct: 117 KQKVALCTQIALGMDHLSN-------ARFVHRDLAARNCLV 150
>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 = 75.1 bits (185), Expect = 4e-16
Identities = 44/147 (29%), Positives = 65/147 (44%), Gaps = 31/147 (21%)
Query: 67 INSQEYVKIKC----AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMD-LVSEME 121
INS+E FG V+ + G VAVK LK+ D+ ++E
Sbjct: 3 INSKELKLGATIGKGEFGDVMLGDYRG-------QKVAVKCLKD---DSTAAQAFLAEAS 52
Query: 122 MMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNG 181
+M + +H N++ LLGV Q PLY++ E+ G+L D+LR S G
Sbjct: 53 VMTTL-RHPNLVQLLGVVLQGNPLYIVTEYMAKGSLVDYLR----SRGRA---------- 97
Query: 182 NVLTEKDLISFAYQVANGMHYLQSRKV 208
V+T + FA V GM YL+ +
Sbjct: 98 -VITLAQQLGFALDVCEGMEYLEEKNF 123
>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 = 74.7 bits (184), Expect = 6e-16
Identities = 43/131 (32%), Positives = 63/131 (48%), Gaps = 25/131 (19%)
Query: 79 FGKVICAEANGI--LKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLL 136
FG V+ G+ +K G VAVK LK+ H A + + E +M + H I+ L+
Sbjct: 8 FGSVV----KGVYLMKSGKEVEVAVKTLKQEHIAAGKKEFLREASVMAQL-DHPCIVRLI 62
Query: 137 GVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQV 196
GVC + PL +++E AP G L +L+K R + DL A+QV
Sbjct: 63 GVC-KGEPLMLVMELAPLGPLLKYLKKRR-----------------EIPVSDLKELAHQV 104
Query: 197 ANGMHYLQSRK 207
A GM YL+S+
Sbjct: 105 AMGMAYLESKH 115
>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 = 74.4 bits (183), Expect = 1e-15
Identities = 47/150 (31%), Positives = 68/150 (45%), Gaps = 22/150 (14%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
AFG+V G + VAVK L E S+ + D + E +M H NI+ L+G
Sbjct: 18 AFGEVYEGLYRGRDGDAVELQVAVKTLPESCSEQDESDFLMEALIMSKF-NHQNIVRLIG 76
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVA 197
V + P ++++E G+L+ FLR++RP S LT KDL+ A VA
Sbjct: 77 VSFERLPRFILLELMAGGDLKSFLRENRPRPERPSS----------LTMKDLLFCARDVA 126
Query: 198 NGMHYLQSRKVGNDAVRFIGFDL----CIL 223
G YL+ FI D+ C+L
Sbjct: 127 KGCKYLEEN-------HFIHRDIAARNCLL 149
>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 = 74.2 bits (182), Expect = 1e-15
Identities = 43/130 (33%), Positives = 71/130 (54%), Gaps = 8/130 (6%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
+FG V A I+K T VAVK + E S E ++ ++E +MK H +++ LLG
Sbjct: 18 SFGMVYEGNARDIIKGEAETRVAVKTVNESASLRERIEFLNEASVMKGFTCH-HVVRLLG 76
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVA 197
V ++ P V++E HG+L+ +LR RP + E+ G T +++I A ++A
Sbjct: 77 VVSKGQPTLVVMELMAHGDLKSYLRSLRPEA--ENNPGRPPP-----TLQEMIQMAAEIA 129
Query: 198 NGMHYLQSRK 207
+GM YL ++K
Sbjct: 130 DGMAYLNAKK 139
>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 = 72.5 bits (178), Expect = 4e-15
Identities = 29/107 (27%), Positives = 53/107 (49%), Gaps = 19/107 (17%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLR 158
VA+KM++EG + D + E ++M + H N++ L GVCT+ P++++ E+ +G L
Sbjct: 31 VAIKMIREGAMSED--DFIEEAKVMMKL-SHPNLVQLYGVCTKQRPIFIVTEYMANGCLL 87
Query: 159 DFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQS 205
++LR+ + L + L+ V M YL+S
Sbjct: 88 NYLRERK----------------GKLGTEWLLDMCSDVCEAMEYLES 118
>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 = 72.8 bits (178), Expect = 4e-15
Identities = 46/129 (35%), Positives = 67/129 (51%), Gaps = 6/129 (4%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
AFGKV AE + + VAVK LK+ SD D E E++ + QH +I+ G
Sbjct: 17 AFGKVFLAECYNLCPEQDKILVAVKTLKDA-SDNARKDFHREAELLTNL-QHEHIVKFYG 74
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVA 197
VC + PL ++ E+ HG+L FLR H P ++ L + LT+ ++ A Q+A
Sbjct: 75 VCVEGDPLIMVFEYMKHGDLNKFLRAHGP----DAVLMAEGNRPAELTQSQMLHIAQQIA 130
Query: 198 NGMHYLQSR 206
GM YL S+
Sbjct: 131 AGMVYLASQ 139
>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 = 71.7 bits (176), Expect = 7e-15
Identities = 44/131 (33%), Positives = 60/131 (45%), Gaps = 23/131 (17%)
Query: 76 KCAFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINL 135
K FG V G+LK T VAVK + + E E++K H NI+ L
Sbjct: 5 KGNFGDVY----KGVLKGN--TEVAVKTCRSTLPPDLKRKFLQEAEILKQY-DHPNIVKL 57
Query: 136 LGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQ 195
+GVC Q P+Y+++E P G+L FLRK N LT K L+ +
Sbjct: 58 IGVCVQKQPIYIVMELVPGGSLLTFLRK----------------KKNRLTVKKLLQMSLD 101
Query: 196 VANGMHYLQSR 206
A GM YL+S+
Sbjct: 102 AAAGMEYLESK 112
>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 = 70.5 bits (173), Expect = 2e-14
Identities = 37/110 (33%), Positives = 54/110 (49%), Gaps = 17/110 (15%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLR 158
VA+K+LK + D E++ +K + +H ++I+L VC+ P+Y+I E G+L
Sbjct: 33 VAIKILKS-DDLLKQQDFQKEVQALKRL-RHKHLISLFAVCSVGEPVYIITELMEKGSLL 90
Query: 159 DFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
FLR SP G VL LI A QVA GM YL+ +
Sbjct: 91 AFLR---------SP------EGQVLPVASLIDMACQVAEGMAYLEEQNS 125
>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 = 70.7 bits (173), Expect = 2e-14
Identities = 46/140 (32%), Positives = 69/140 (49%), Gaps = 22/140 (15%)
Query: 79 FGKVICAEANGILK-------------QGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKM 125
FG+V EA G+ K Q ++ VAVKML+E + D + E+++M
Sbjct: 18 FGEVHLCEAEGMEKFMDKDFSLDVSGNQPVL--VAVKMLREDANKNARNDFLKEIKIMSR 75
Query: 126 IGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLT 185
+ + NII LL VC PL +I E+ +G+L FL +H P + A + ++
Sbjct: 76 L-KDPNIIRLLAVCITSDPLCMITEYMENGDLNQFLSRHEP----QEAAEKA--DVVTIS 128
Query: 186 EKDLISFAYQVANGMHYLQS 205
LI A Q+A+GM YL S
Sbjct: 129 YSTLIFMATQIASGMKYLSS 148
>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 = 70.0 bits (171), Expect = 3e-14
Identities = 46/131 (35%), Positives = 62/131 (47%), Gaps = 23/131 (17%)
Query: 76 KCAFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINL 135
K FG+V G LK T VAVK KE + +SE ++K H NI+ L
Sbjct: 5 KGNFGEVF----KGTLKDK--TPVAVKTCKEDLPQELKIKFLSEARILKQY-DHPNIVKL 57
Query: 136 LGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQ 195
+GVCTQ P+Y+++E P G+ FLRK + L K L+ FA
Sbjct: 58 IGVCTQRQPIYIVMELVPGGDFLSFLRKKKDE----------------LKTKQLVKFALD 101
Query: 196 VANGMHYLQSR 206
A GM YL+S+
Sbjct: 102 AAAGMAYLESK 112
>gnl|CDD|215690 pfam00069, Pkinase, Protein kinase domain.
Length = 260
Score = 68.4 bits (168), Expect = 1e-13
Identities = 32/132 (24%), Positives = 56/132 (42%), Gaps = 24/132 (18%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKML-KEGHSDAEMMDLVSEMEMMKMIGQHINIINLL 136
+FG V A+ +G VAVK+L K + E+ +++ + H NI+ L+
Sbjct: 11 SFGTVYKAK-----HKGTGKIVAVKILKKRSEKSKKDQTARREIRILRRL-SHPNIVRLI 64
Query: 137 GVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQV 196
LY+++E+ G+L D+L + P L+E + A Q+
Sbjct: 65 DAFEDKDHLYLVMEYCEGGDLFDYLSRGGP-----------------LSEDEAKKIALQI 107
Query: 197 ANGMHYLQSRKV 208
G+ YL S +
Sbjct: 108 LRGLEYLHSNGI 119
>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 = 68.1 bits (167), Expect = 1e-13
Identities = 41/127 (32%), Positives = 61/127 (48%), Gaps = 23/127 (18%)
Query: 79 FGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQ--HINIINLL 136
FG+V K+ I VA+K LK G SD + +D ++E +M GQ H NII L
Sbjct: 17 FGEVCRGRLKLPGKKEI--DVAIKTLKAGSSDKQRLDFLTEASIM---GQFDHPNIIRLE 71
Query: 137 GVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQV 196
GV T+ P+ +I E+ +G+L FLR++ G + L+ +
Sbjct: 72 GVVTKSRPVMIITEYMENGSLDKFLREND---GKFTVG-------------QLVGMLRGI 115
Query: 197 ANGMHYL 203
A+GM YL
Sbjct: 116 ASGMKYL 122
>gnl|CDD|133172 cd05040, PTKc_Ack_like, Catalytic domain of the Protein Tyrosine
Kinase, Activated Cdc42-associated kinase. Protein
Tyrosine Kinase (PTK) family; Activated Cdc42-associated
kinase (Ack) subfamily; catalytic (c) domain. Ack
subfamily members include Ack1, thirty-eight-negative
kinase 1 (Tnk1), and similar proteins. The PTKc family
is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Ack
subfamily members are cytoplasmic (or nonreceptor) tyr
kinases containing an N-terminal catalytic domain, an
SH3 domain, a Cdc42-binding CRIB domain, and a
proline-rich region. They are mainly expressed in brain
and skeletal tissues and are involved in the regulation
of cell adhesion and growth, receptor degradation, and
axonal guidance. Ack1 is also associated with
androgen-independent prostate cancer progression. Tnk1
regulates TNFalpha signaling and may play an important
role in cell death.
Length = 257
Score = 68.2 bits (167), Expect = 1e-13
Identities = 47/147 (31%), Positives = 64/147 (43%), Gaps = 34/147 (23%)
Query: 89 GILKQGIITT-------VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQ 141
G++++G +T VAVK LK M D + E +M + H N+I L GV
Sbjct: 9 GVVRRGEWSTSGGKVIPVAVKCLKSDKLSDIMDDFLKEAAIMHSL-DHENLIRLYGVVLT 67
Query: 142 DGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMH 201
PL ++ E AP G+L D LRK L +A Q+ANGM
Sbjct: 68 H-PLMMVTELAPLGSLLDRLRKDALGH---------------FLISTLCDYAVQIANGMR 111
Query: 202 YLQSRKVGNDAVRFIGFDLC---ILVF 225
YL+S+ RFI DL IL+
Sbjct: 112 YLESK-------RFIHRDLAARNILLA 131
>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 = 67.1 bits (164), Expect = 3e-13
Identities = 38/140 (27%), Positives = 67/140 (47%), Gaps = 22/140 (15%)
Query: 79 FGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGV 138
FG V + + + VAVK K S + + E +M+ H +I+ L+GV
Sbjct: 19 FGDV--YQGVYMSPENEKIAVAVKTCKNCTSPSVREKFLQEAYIMRQF-DHPHIVKLIGV 75
Query: 139 CTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVAN 198
T + P+++++E AP G LR +L+ ++ S L LI ++YQ++
Sbjct: 76 IT-ENPVWIVMELAPLGELRSYLQVNKYS----------------LDLASLILYSYQLST 118
Query: 199 GMHYLQSRK-VGND-AVRFI 216
+ YL+S++ V D A R +
Sbjct: 119 ALAYLESKRFVHRDIAARNV 138
>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 = 67.0 bits (163), Expect = 4e-13
Identities = 41/130 (31%), Positives = 65/130 (50%), Gaps = 8/130 (6%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
+FG V A G++K T VA+K + E S E ++ ++E +MK H +++ LLG
Sbjct: 18 SFGMVYEGIAKGVVKDEPETRVAIKTVNEAASMRERIEFLNEASVMKEFNCH-HVVRLLG 76
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVA 197
V +Q P VI+E G+L+ +LR RP + K +I A ++A
Sbjct: 77 VVSQGQPTLVIMELMTRGDLKSYLRSLRPEMENNPVQAPP-------SLKKMIQMAGEIA 129
Query: 198 NGMHYLQSRK 207
+GM YL + K
Sbjct: 130 DGMAYLNANK 139
>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 = 67.3 bits (164), Expect = 4e-13
Identities = 44/136 (32%), Positives = 69/136 (50%), Gaps = 15/136 (11%)
Query: 79 FGKVICAEANGILK---------QGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQH 129
FG+V EA G+ + G VAVKML+ + D + E+++M + ++
Sbjct: 18 FGEVHLCEAEGLAEFLGEGAPEFDGQPVLVAVKMLRADVTKTARNDFLKEIKIMSRL-KN 76
Query: 130 INIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDL 189
NII LLGVC D PL +I E+ +G+L FL + S + + N ++ +L
Sbjct: 77 PNIIRLLGVCVSDDPLCMITEYMENGDLNQFLSQREIESTF-----THANNIPSVSIANL 131
Query: 190 ISFAYQVANGMHYLQS 205
+ A Q+A+GM YL S
Sbjct: 132 LYMAVQIASGMKYLAS 147
>gnl|CDD|173650 cd05094, PTKc_TrkC, Catalytic domain of the Protein Tyrosine
Kinase, Tropomyosin Related Kinase C. Protein Tyrosine
Kinase (PTK) family; Tropomyosin Related Kinase C
(TrkC); catalytic (c) domain. The PTKc family is part of
a larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. TrkC is a member of the
Trk subfamily of proteins, which are receptor tyr
kinases (RTKs) containing an extracellular region with
arrays of leucine-rich motifs flanked by two
cysteine-rich clusters followed by two
immunoglobulin-like domains, a transmembrane segment,
and an intracellular catalytic domain. Binding of TrkC
to its ligand, neurotrophin 3 (NT3), results in receptor
oligomerization and activation of the catalytic domain.
TrkC is broadly expressed in the nervous system and in
some non-neural tissues including the developing heart.
NT3/TrkC signaling plays an important role in the
innervation of the cardiac conducting system and the
development of smooth muscle cells. Mice deficient with
NT3 and TrkC have multiple heart defects. NT3/TrkC
signaling is also critical for the development and
maintenance of enteric neurons that are important for
the control of gut peristalsis.
Length = 291
Score = 65.0 bits (158), Expect = 2e-12
Identities = 44/129 (34%), Positives = 61/129 (47%), Gaps = 3/129 (2%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
AFGKV AE + VAVK LK+ A D E E++ + QH +I+ G
Sbjct: 17 AFGKVFLAECYNLSPTKDKMLVAVKALKDPTLAARK-DFQREAELLTNL-QHEHIVKFYG 74
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVA 197
VC PL ++ E+ HG+L FLR H P + G L ++ A Q+A
Sbjct: 75 VCGDGDPLIMVFEYMKHGDLNKFLRAHGPDAMILVDGQPRQAKGE-LGLSQMLHIASQIA 133
Query: 198 NGMHYLQSR 206
+GM YL S+
Sbjct: 134 SGMVYLASQ 142
>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 = 64.5 bits (157), Expect = 3e-12
Identities = 50/158 (31%), Positives = 69/158 (43%), Gaps = 36/158 (22%)
Query: 79 FGKVICAEANGILKQ--GIITTVAVKMLK-EGHSDAEMMDLVSEMEMMKMIGQHINIINL 135
FG V+ G L Q G VAVK +K + H+ +E+ + +SE MK H N++ L
Sbjct: 12 FGSVM----EGQLSQDDGSQLKVAVKTMKLDIHTYSEIEEFLSEAACMKDF-DHPNVMKL 66
Query: 136 LGVCTQDGPL------YVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDL 189
+GVC + L VI+ F HG+L FL R E L + L
Sbjct: 67 IGVCFEASSLQKIPKPMVILPFMKHGDLHSFLLYSRLGGLPEK-----------LPLQTL 115
Query: 190 ISFAYQVANGMHYLQSRKVGNDAVRFIGFDL----CIL 223
+ F +A GM YL +R FI DL C+L
Sbjct: 116 LKFMVDIALGMEYLSNR-------NFIHRDLAARNCML 146
>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 = 64.4 bits (157), Expect = 3e-12
Identities = 47/132 (35%), Positives = 69/132 (52%), Gaps = 32/132 (24%)
Query: 99 VAVKMLKEGHSDAE-MMDLVSEMEMMKMIGQHINIINLLGVCTQDG--PLYVIVEFAPHG 155
VAVK L+ HS AE + D E+E++K + QH NI+ GVC G L +++E+ P+G
Sbjct: 36 VAVKKLQ--HSTAEHLRDFEREIEILKSL-QHDNIVKYKGVCYSAGRRNLRLVMEYLPYG 92
Query: 156 NLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKVGNDAVRF 215
+LRD+L+KHR L + L+ +A Q+ GM YL S+ R+
Sbjct: 93 SLRDYLQKHRER----------------LDHRKLLLYASQICKGMEYLGSK-------RY 129
Query: 216 IGFDLC---ILV 224
+ DL ILV
Sbjct: 130 VHRDLATRNILV 141
>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 = 63.1 bits (153), Expect = 1e-11
Identities = 41/130 (31%), Positives = 59/130 (45%), Gaps = 2/130 (1%)
Query: 79 FGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGV 138
FGKV G VA+K LK+ ++ + + MM+ QH NI+ LLGV
Sbjct: 18 FGKVYKGHLFGTAPGEQTQAVAIKTLKD-KAEGPLREEFKHEAMMRSRLQHPNIVCLLGV 76
Query: 139 CTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVAN 198
T++ PL +I + H +L +FL P S S T + L D + Q+A
Sbjct: 77 VTKEQPLSMIFSYCSHSDLHEFLVMRSPHSDVGST-DDDKTVKSTLEPADFVHIVTQIAA 135
Query: 199 GMHYLQSRKV 208
GM +L S V
Sbjct: 136 GMEFLSSHHV 145
>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 = 62.6 bits (152), Expect = 2e-11
Identities = 35/117 (29%), Positives = 59/117 (50%), Gaps = 3/117 (2%)
Query: 91 LKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVE 150
+++G VAVK+L+ + D + E++++ + + NII LLGVC + PL +I E
Sbjct: 41 VRKGRPLLVAVKILRPDANKNARNDFLKEVKILSRL-KDPNIIRLLGVCVDEDPLCMITE 99
Query: 151 FAPHGNLRDFLRKHRPSSGYE--SPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQS 205
+ +G+L FL H E + ++ L+ A Q+A+GM YL S
Sbjct: 100 YMENGDLNQFLSSHHLDDKEENGNDAVPPAHCLPAISYSSLLHVALQIASGMKYLSS 156
>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 = 62.3 bits (151), Expect = 2e-11
Identities = 35/113 (30%), Positives = 53/113 (46%), Gaps = 21/113 (18%)
Query: 97 TTVAVKMLKEGHSDAEMMDLVSEME-MMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHG 155
VA+K ++EG E D + E + MMK+ H ++ L GVCT+ P+ ++ EF HG
Sbjct: 29 RKVAIKTIREGAMSEE--DFIEEAQVMMKL--SHPKLVQLYGVCTERSPICLVFEFMEHG 84
Query: 156 NLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
L D+LR R +++ L+ V GM YL+S V
Sbjct: 85 CLSDYLRAQRGK----------------FSQETLLGMCLDVCEGMAYLESSNV 121
>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 = 61.9 bits (150), Expect = 3e-11
Identities = 36/111 (32%), Positives = 58/111 (52%), Gaps = 19/111 (17%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDG--PLYVIVEFAPHGN 156
VAVK LK + DL E+E+++ + H NI+ G+CT+DG + +I+EF P G+
Sbjct: 36 VAVKSLKPESGGNHIADLKKEIEILRNL-YHENIVKYKGICTEDGGNGIKLIMEFLPSGS 94
Query: 157 LRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRK 207
L+++L + N N + K + +A Q+ GM YL SR+
Sbjct: 95 LKEYLPR----------------NKNKINLKQQLKYAVQICKGMDYLGSRQ 129
>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 = 61.0 bits (148), Expect = 4e-11
Identities = 32/110 (29%), Positives = 54/110 (49%), Gaps = 21/110 (19%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEME-MMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNL 157
VA+KM+KEG + + + E + MMK+ H ++ L GVCT+ P+Y++ E+ +G L
Sbjct: 31 VAIKMIKEGSMSED--EFIEEAKVMMKL--SHEKLVQLYGVCTKQRPIYIVTEYMSNGCL 86
Query: 158 RDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRK 207
++LR+H L+ V GM YL+S++
Sbjct: 87 LNYLREHGKR----------------FQPSQLLEMCKDVCEGMAYLESKQ 120
>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 = 60.9 bits (148), Expect = 5e-11
Identities = 40/117 (34%), Positives = 55/117 (47%), Gaps = 22/117 (18%)
Query: 94 GIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVC-TQDGPLYVIVEFA 152
G AVK L E+ + E +MK H N+++LLG+C +G V++ +
Sbjct: 21 GQKIHCAVKSLNRITDLEEVEQFLKEGIIMKDF-SHPNVLSLLGICLPSEGSPLVVLPYM 79
Query: 153 PHGNLRDFLRK--HRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRK 207
HG+LR+F+R H P T KDLI F QVA GM YL S+K
Sbjct: 80 KHGDLRNFIRSETHNP------------------TVKDLIGFGLQVAKGMEYLASKK 118
>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 = 60.1 bits (146), Expect = 1e-10
Identities = 35/112 (31%), Positives = 55/112 (49%), Gaps = 13/112 (11%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIG-QHINIINLLGVCTQD-GPLYVIVEFAPHGN 156
V VK +K+ S+ ++ L+ E + G H NI+ +L VC +D P +V+ + GN
Sbjct: 38 VFVKTVKDHASEIQVTLLLQES--CLLYGLSHQNILPILHVCIEDGEPPFVLYPYMNWGN 95
Query: 157 LRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
L+ FL++ R N L+ + L+ A Q+A GM YL R V
Sbjct: 96 LKLFLQQCRLGEA---------NNPQALSTQQLVHMAIQIACGMSYLHKRGV 138
>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 = 59.9 bits (145), Expect = 1e-10
Identities = 29/68 (42%), Positives = 44/68 (64%), Gaps = 5/68 (7%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQ--HINIINLLGVCTQDGPLYVIVEFAPHGN 156
VA+K LK G+++ + D +SE +M GQ H NII+L GV T+ P+ ++ E+ +G+
Sbjct: 35 VAIKTLKAGYTEKQRRDFLSEASIM---GQFDHPNIIHLEGVVTKSKPVMIVTEYMENGS 91
Query: 157 LRDFLRKH 164
L FLRKH
Sbjct: 92 LDAFLRKH 99
>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 = 59.1 bits (143), Expect = 2e-10
Identities = 35/107 (32%), Positives = 53/107 (49%), Gaps = 21/107 (19%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEME-MMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNL 157
VA+K + EG E D + E + MMK+ H ++ L GVCTQ PLY++ EF +G L
Sbjct: 31 VAIKAINEGAMSEE--DFIEEAKVMMKL--SHPKLVQLYGVCTQQKPLYIVTEFMENGCL 86
Query: 158 RDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQ 204
++LR+ + L++ L+S V GM YL+
Sbjct: 87 LNYLRQRQ----------------GKLSKDMLLSMCQDVCEGMEYLE 117
>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 = 3e-10
Identities = 26/87 (29%), Positives = 48/87 (55%), Gaps = 4/87 (4%)
Query: 79 FGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGV 138
FGKV+ EA+ + V VK L+ + E + + E++ + + H N++ LG
Sbjct: 8 FGKVLLGEAHRGMS---KARVVVKELRASATPDEQLLFLQEVQPYREL-NHPNVLQCLGQ 63
Query: 139 CTQDGPLYVIVEFAPHGNLRDFLRKHR 165
C + P +++EF P G+L+++LR +R
Sbjct: 64 CIESIPYLLVLEFCPLGDLKNYLRSNR 90
>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 = 58.9 bits (142), Expect = 3e-10
Identities = 41/132 (31%), Positives = 64/132 (48%), Gaps = 6/132 (4%)
Query: 76 KCAFGKVICAEANGILKQGI--ITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINII 133
+CAFGK+ + G+ VA+K LK+ ++ + + E +M + H NI+
Sbjct: 15 ECAFGKIYKGH---LYLPGMDHAQLVAIKTLKDINNPQQWGEFQQEASLMAEL-HHPNIV 70
Query: 134 NLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFA 193
LLGV TQ+ P+ ++ E+ G+L +FL P S T + L D + A
Sbjct: 71 CLLGVVTQEQPVCMLFEYLNQGDLHEFLIMRSPHSDVGCSSDEDGTVKSSLDHGDFLHIA 130
Query: 194 YQVANGMHYLQS 205
Q+A GM YL S
Sbjct: 131 IQIAAGMEYLSS 142
>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 = 59.0 bits (143), Expect = 3e-10
Identities = 29/110 (26%), Positives = 58/110 (52%), Gaps = 18/110 (16%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLR 158
VA+K+L+E S +++ E +M + H +++ LLG+C + +I + P G L
Sbjct: 39 VAIKVLREETSPKANKEILDEAYVMASVD-HPHVVRLLGICLSS-QVQLITQLMPLGCLL 96
Query: 159 DFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
D++R H+ + +GS + L+++ Q+A GM YL+ +++
Sbjct: 97 DYVRNHKDN------IGS----------QYLLNWCVQIAKGMSYLEEKRL 130
>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 = 58.3 bits (141), Expect = 4e-10
Identities = 36/110 (32%), Positives = 56/110 (50%), Gaps = 19/110 (17%)
Query: 97 TTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGN 156
T VA+K LK+G E ++E +MK + QH ++ L V TQ+ P+Y+I E+ +G+
Sbjct: 31 TKVAIKSLKQGSMSPEA--FLAEANLMKQL-QHPRLVRLYAVVTQE-PIYIITEYMENGS 86
Query: 157 LRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSR 206
L DFL+ G LT LI A Q+A GM +++ +
Sbjct: 87 LVDFLKT---------------PEGIKLTINKLIDMAAQIAEGMAFIERK 121
>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 = 57.7 bits (139), Expect = 6e-10
Identities = 37/110 (33%), Positives = 55/110 (50%), Gaps = 18/110 (16%)
Query: 97 TTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGN 156
T VAVK LK G + + E +MK + QH ++ L V T++ P+Y+I E+ G+
Sbjct: 31 TKVAVKTLKPGTMSVQA--FLEEANLMKTL-QHDKLVRLYAVVTKEEPIYIITEYMAKGS 87
Query: 157 LRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSR 206
L DFL+ G VL K LI F+ Q+A GM Y++ +
Sbjct: 88 LLDFLKSDE--------------GGKVLLPK-LIDFSAQIAEGMAYIERK 122
>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 = 57.2 bits (138), Expect = 1e-09
Identities = 35/107 (32%), Positives = 50/107 (46%), Gaps = 17/107 (15%)
Query: 97 TTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGN 156
VA+K LK G+++ + D +SE +M H NII+L GV T+ P+ +I EF +G
Sbjct: 33 IFVAIKTLKSGYTEKQRRDFLSEASIMGQF-DHPNIIHLEGVVTKSRPVMIITEFMENGA 91
Query: 157 LRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYL 203
L FLR+ N T L+ +A GM YL
Sbjct: 92 LDSFLRQ----------------NDGQFTVIQLVGMLRGIAAGMKYL 122
>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 = 56.8 bits (138), Expect = 1e-09
Identities = 30/145 (20%), Positives = 55/145 (37%), Gaps = 30/145 (20%)
Query: 71 EYVKIKC----AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMD-LVSEMEMMKM 125
E+ + + +FG V A G +AVK ++ E ++ L E+ ++
Sbjct: 1 EWTRGELLGRGSFGSVYLAL---DKDTG--ELMAVKSVELSGDSEEELEALEREIRILSS 55
Query: 126 IGQHINIINLLGVCTQDGP--LYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNV 183
+ QH NI+ G + L + +E+ G+L L+K
Sbjct: 56 L-QHPNIVRYYGSERDEEKNTLNIFLEYVSGGSLSSLLKKFGK----------------- 97
Query: 184 LTEKDLISFAYQVANGMHYLQSRKV 208
L E + + Q+ G+ YL S +
Sbjct: 98 LPEPVIRKYTRQILEGLAYLHSNGI 122
>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 = 56.6 bits (136), Expect = 1e-09
Identities = 36/110 (32%), Positives = 50/110 (45%), Gaps = 17/110 (15%)
Query: 97 TTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGN 156
T VAVK +E + E ++K H NI+ L+GVCTQ P+Y+++E G+
Sbjct: 21 TPVAVKSCRETLPPDLKAKFLQEARILKQY-SHPNIVRLIGVCTQKQPIYIVMELVQGGD 79
Query: 157 LRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSR 206
FLR T G L K+LI A GM YL+S+
Sbjct: 80 FLTFLR----------------TEGPRLKVKELIQMVENAAAGMEYLESK 113
>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 = 56.8 bits (137), Expect = 2e-09
Identities = 41/133 (30%), Positives = 58/133 (43%), Gaps = 26/133 (19%)
Query: 79 FGKVI--CAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLL 136
FGKV C + G VAVK LK E+ ++K + H NI+
Sbjct: 17 FGKVSLYCYDPA---NDGTGEMVAVKTLKRECGQQNTSGWKKEINILKTL-YHENIVKYK 72
Query: 137 GVCTQDGP--LYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAY 194
G C++ G L +I+E+ P G+LRD+L KH+ L L+ FA
Sbjct: 73 GCCSEQGGKGLQLIMEYVPLGSLRDYLPKHK------------------LNLAQLLLFAQ 114
Query: 195 QVANGMHYLQSRK 207
Q+ GM YL S+
Sbjct: 115 QICEGMAYLHSQH 127
>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 = 56.2 bits (135), Expect = 2e-09
Identities = 35/110 (31%), Positives = 54/110 (49%), Gaps = 19/110 (17%)
Query: 97 TTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGN 156
T VAVK +K G E ++E +MK + QH ++ L V T++ P+Y+I EF G+
Sbjct: 31 TKVAVKTMKPGSMSVEA--FLAEANVMKTL-QHDKLVKLHAVVTKE-PIYIITEFMAKGS 86
Query: 157 LRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSR 206
L DFL+ G+ LI F+ Q+A GM +++ R
Sbjct: 87 LLDFLKSDE---------------GSKQPLPKLIDFSAQIAEGMAFIEQR 121
>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 = 55.8 bits (134), Expect = 3e-09
Identities = 38/131 (29%), Positives = 60/131 (45%), Gaps = 27/131 (20%)
Query: 76 KCAFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINL 135
K FG V+ + G VAVK +K +DA ++E +M + +H N++ L
Sbjct: 16 KGEFGDVMLGDYRG-------NKVAVKCIK---NDATAQAFLAEASVMTQL-RHSNLVQL 64
Query: 136 LGVCTQD-GPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAY 194
LGV ++ G LY++ E+ G+L D+LR S VL L+ F+
Sbjct: 65 LGVIVEEKGGLYIVTEYMAKGSLVDYLRSRGRS---------------VLGGDCLLKFSL 109
Query: 195 QVANGMHYLQS 205
V M YL++
Sbjct: 110 DVCEAMEYLEA 120
>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 = 55.0 bits (132), Expect = 5e-09
Identities = 42/131 (32%), Positives = 59/131 (45%), Gaps = 29/131 (22%)
Query: 79 FGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGV 138
FG V+ E G VAVK +K D + E +M + H N++ LLGV
Sbjct: 19 FGAVLQGEYTG-------QKVAVKNIK---CDVTAQAFLEETAVMTKL-HHKNLVRLLGV 67
Query: 139 CTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTE-KDLISFAYQVA 197
+G LY+++E GNL +FLR T G L L+ F+ VA
Sbjct: 68 ILHNG-LYIVMELMSKGNLVNFLR----------------TRGRALVSVIQLLQFSLDVA 110
Query: 198 NGMHYLQSRKV 208
GM YL+S+K+
Sbjct: 111 EGMEYLESKKL 121
>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 = 54.9 bits (132), Expect = 5e-09
Identities = 32/88 (36%), Positives = 46/88 (52%), Gaps = 6/88 (6%)
Query: 79 FGKVICAEANGILKQGIITT-VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
FGKVI E N G V VK L+ S E M + E + + + QH N++ LG
Sbjct: 8 FGKVILGEVN----SGYTPAQVVVKELRVSASVQEQMKFLEEAQPYRSL-QHSNLLQCLG 62
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHR 165
CT+ P +++EF P G+L+ +LR R
Sbjct: 63 QCTEVTPYLLVMEFCPLGDLKGYLRSCR 90
>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 = 54.5 bits (131), Expect = 9e-09
Identities = 31/107 (28%), Positives = 47/107 (43%), Gaps = 21/107 (19%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQ--HINIINLLGVCTQDGPLYVIVEFAPHGN 156
VA+ L+ G SD + ++E + GQ H NI+ L GV T+ + ++ E+ +G
Sbjct: 36 VAIHTLRAGCSDKQRRGFLAEALTL---GQFDHSNIVRLEGVITRGNTMMIVTEYMSNGA 92
Query: 157 LRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYL 203
L FLRKH L L+ +A+GM YL
Sbjct: 93 LDSFLRKHEGQ----------------LVAGQLMGMLPGLASGMKYL 123
>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 = 54.6 bits (131), Expect = 9e-09
Identities = 41/130 (31%), Positives = 58/130 (44%), Gaps = 24/130 (18%)
Query: 81 KVICAEANGILKQGII-------TTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINII 133
KVI A G + +GI+ VA+K LK G+++ + D +SE +M H NII
Sbjct: 11 KVIGAGEFGEVFRGILKMPGRKEVAVAIKTLKPGYTEKQRQDFLSEASIMGQFSHH-NII 69
Query: 134 NLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFA 193
L GV T+ P +I E+ +G L +LR H G S L+
Sbjct: 70 RLEGVVTKFKPAMIITEYMENGALDKYLRDH---DGEFSSY-------------QLVGML 113
Query: 194 YQVANGMHYL 203
+A GM YL
Sbjct: 114 RGIAAGMKYL 123
>gnl|CDD|173733 cd07829, STKc_CDK_like, Catalytic domain of Cyclin-Dependent
protein Kinase-like Serine/Threonine Kinases.
Serine/Threonine Kinases (STKs), Cyclin-Dependent
protein Kinase (CDK)-like subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK-like subfamily
is part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. CDKs belong to a large family of STKs that are
regulated by their cognate cyclins. Together, they are
involved in the control of cell-cycle progression,
transcription, and neuronal function. CDKs are partly
regulated by their subcellular localization, which
defines substrate phosphorylation and the resulting
specific function. CDK1, CDK2, CDK4, and CDK6 have
well-defined functions in the cell cycle, such as the
regulation of the early G1 phase by CDK4 or CDK6, the
G1/S phase transition by CDK2, or the entry of mitosis
by CDK1. They also exhibit overlapping cyclin
specificity and functions in certain conditions.
Knockout mice with a single CDK deleted remain viable
with specific phenotypes, showing that some CDKs can
compensate for each other. For example, CDK4 can
compensate for the loss of CDK6, however, double
knockout mice with both CDK4 and CDK6 deleted die in
utero. CDK8 and CDK9 are mainly involved in
transcription while CDK5 is implicated in neuronal
function. CDK7 plays essential roles in both the cell
cycle as a CDK-Activating Kinase (CAK) and in
transcription as a component of the general
transcription factor TFIIH.
Length = 282
Score = 54.0 bits (131), Expect = 1e-08
Identities = 24/112 (21%), Positives = 50/112 (44%), Gaps = 19/112 (16%)
Query: 98 TVAVKMLKEGHSDAEM-MDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGN 156
VA+K ++ + + + + E+ ++K + +H NI+ LL V + LY++ E+ +
Sbjct: 26 IVALKKIRLDNEEEGIPSTALREISLLKEL-KHPNIVKLLDVIHTERKLYLVFEYCDM-D 83
Query: 157 LRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
L+ +L K L+ + S YQ+ G+ Y S ++
Sbjct: 84 LKKYLDKRPG----------------PLSPNLIKSIMYQLLRGLAYCHSHRI 119
>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 = 52.0 bits (124), Expect = 6e-08
Identities = 36/126 (28%), Positives = 59/126 (46%), Gaps = 25/126 (19%)
Query: 79 FGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGV 138
FG+V NG T VA+K LK G E + E ++MK + +H ++ L V
Sbjct: 19 FGEVWMGTWNGT------TRVAIKTLKPGTMSPEA--FLQEAQVMKKL-RHEKLVQLYAV 69
Query: 139 CTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVAN 198
+++ P+Y++ E+ G+L DFL+ G L L+ A Q+A+
Sbjct: 70 VSEE-PIYIVTEYMSKGSLLDFLKGE---------------MGKYLRLPQLVDMAAQIAS 113
Query: 199 GMHYLQ 204
GM Y++
Sbjct: 114 GMAYVE 119
>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 = 52.0 bits (124), Expect = 7e-08
Identities = 52/158 (32%), Positives = 70/158 (44%), Gaps = 37/158 (23%)
Query: 79 FGKVICAEANGILKQG-IITTVAVKMLKEG-HSDAEMMDLVSEMEMMKMIGQHINIINLL 136
FG V+ G L Q I VAVK +K + +EM D +SE MK H N++ L+
Sbjct: 12 FGSVM----EGQLNQDDSILKVAVKTMKIAICTRSEMEDFLSEAVCMKEF-DHPNVMRLI 66
Query: 137 GVCTQD-------GPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDL 189
GVC Q P+ VI+ F HG+L FL R + P L + L
Sbjct: 67 GVCLQTVESEGYPSPV-VILPFMKHGDLHSFLLYSRLG---DCPQ--------YLPTQML 114
Query: 190 ISFAYQVANGMHYLQSRKVGNDAVRFIGFDL----CIL 223
+ F +A+GM YL S+ FI DL C+L
Sbjct: 115 VKFMTDIASGMEYLSSK-------SFIHRDLAARNCML 145
>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 = 51.5 bits (124), Expect = 8e-08
Identities = 28/112 (25%), Positives = 53/112 (47%), Gaps = 19/112 (16%)
Query: 98 TVAVK-MLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGN 156
VA+K + E + + ++ E++++K + +H NI+ +G LY+I+E+A +G+
Sbjct: 27 FVAIKQISLEKIKEEALKSIMQEIDLLKNL-KHPNIVKYIGSIETSDSLYIILEYAENGS 85
Query: 157 LRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
LR ++K P E + + YQV G+ YL + V
Sbjct: 86 LRQIIKKFGP-----------------FPESLVAVYVYQVLQGLAYLHEQGV 120
>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 = 51.6 bits (123), Expect = 9e-08
Identities = 37/126 (29%), Positives = 61/126 (48%), Gaps = 25/126 (19%)
Query: 79 FGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGV 138
FG+V NG T VA+K LK G E + E ++MK + +H ++ L V
Sbjct: 19 FGEVWMGTWNGT------TKVAIKTLKPGTMMPEA--FLQEAQIMKKL-RHDKLVPLYAV 69
Query: 139 CTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVAN 198
+++ P+Y++ EF G+L DFL++ +G L L+ A Q+A+
Sbjct: 70 VSEE-PIYIVTEFMGKGSLLDFLKE---------------GDGKYLKLPQLVDMAAQIAD 113
Query: 199 GMHYLQ 204
GM Y++
Sbjct: 114 GMAYIE 119
>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 = 51.2 bits (122), Expect = 1e-07
Identities = 38/126 (30%), Positives = 59/126 (46%), Gaps = 25/126 (19%)
Query: 79 FGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGV 138
FG+V NG T VAVK LK G E + E ++MK + +H ++ L V
Sbjct: 19 FGEVWMGTWNGN------TKVAVKTLKPGTMSPE--SFLEEAQIMKKL-RHDKLVQLYAV 69
Query: 139 CTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVAN 198
+++ P+Y++ E+ G+L DFL+ G L +L+ A QVA
Sbjct: 70 VSEE-PIYIVTEYMSKGSLLDFLKD---------------GEGRALKLPNLVDMAAQVAA 113
Query: 199 GMHYLQ 204
GM Y++
Sbjct: 114 GMAYIE 119
>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 = 51.3 bits (121), Expect = 1e-07
Identities = 28/133 (21%), Positives = 56/133 (42%), Gaps = 24/133 (18%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSD--AEMMDLVSEMEMMKMIGQHINIINL 135
+FG+V A VA+K+L + E+ + E++++ + NI+ L
Sbjct: 12 SFGEVYLARDR--------KLVALKVLAKKLESKSKEVERFLREIQILASLNHPPNIVKL 63
Query: 136 LGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQ 195
+G LY+++E+ G+L D L+K L+E + + Q
Sbjct: 64 YDFFQDEGSLYLVMEYVDGGSLEDLLKKIG--------------RKGPLSESEALFILAQ 109
Query: 196 VANGMHYLQSRKV 208
+ + + YL S+ +
Sbjct: 110 ILSALEYLHSKGI 122
>gnl|CDD|173654 cd05108, PTKc_EGFR, Catalytic domain of the Protein Tyrosine
Kinase, Epidermal Growth Factor Receptor. Protein
Tyrosine Kinase (PTK) family; Epidermal Growth Factor
Receptor (EGFR); catalytic (c) domain. The PTKc family
is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. EGFR
(HER1, ErbB1) is a member of the EGFR (HER, ErbB)
subfamily of proteins, which are receptor tyr kinases
(RTKs) containing an extracellular EGF-related
ligand-binding region, a transmembrane helix, and a
cytoplasmic region with a tyr kinase domain and a
regulatory C-terminal tail. Unlike other tyr kinases,
phosphorylation of the activation loop of EGFR proteins
is not critical to their activation. Instead, they are
activated by ligand-induced dimerization, leading to the
phosphorylation of tyr residues in the C-terminal tail,
which serve as binding sites for downstream signaling
molecules. Ligands for EGFR include EGF, heparin binding
EGF-like growth factor (HBEGF), epiregulin,
amphiregulin, TGFalpha, and betacellulin. Upon ligand
binding, EGFR can form homo- or heterodimers with other
EGFR subfamily members. The EGFR signaling pathway is
one of the most important pathways regulating cell
proliferation, differentiation, survival, and growth.
Overexpression and mutation in the kinase domain of EGFR
have been implicated in the development and progression
of a variety of cancers. A number of monoclonal
antibodies and small molecule inhibitors have been
developed that target EGFR, including the antibodies
Cetuximab and Panitumumab, which are used in combination
with other therapies for the treatment of colorectal
cancer and non-small cell lung carcinoma (NSCLC). The
small molecule inhibitors Gefitinib (Iressa) and
Erlotinib (Tarceva), already used for NSCLC, are
undergoing clinical trials for other types of cancer
including gastrointestinal, breast, head and neck, and
bladder.
Length = 316
Score = 48.5 bits (115), Expect = 1e-06
Identities = 30/116 (25%), Positives = 60/116 (51%), Gaps = 18/116 (15%)
Query: 93 QGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFA 152
+ + VA+K L+E S +++ E +M + + ++ LLG+C + +I +
Sbjct: 33 EKVKIPVAIKELREATSPKANKEILDEAYVMASV-DNPHVCRLLGICLTST-VQLITQLM 90
Query: 153 PHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
P G L D++R+H+ + +GS Y L+++ Q+A GM+YL+ R++
Sbjct: 91 PFGCLLDYVREHKDN------IGSQY----------LLNWCVQIAKGMNYLEERRL 130
>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 = 48.0 bits (114), Expect = 1e-06
Identities = 31/108 (28%), Positives = 57/108 (52%), Gaps = 20/108 (18%)
Query: 98 TVAVKMLKEGHSDAEMMD-LVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGN 156
TVAVK+LK ++D + D L+ E +M+ + + I+ ++G+C + +++E A G
Sbjct: 24 TVAVKILKNDNNDPALKDELLREANVMQQL-DNPYIVRMIGICEAES-WMLVMELAELGP 81
Query: 157 LRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQ 204
L FL+K++ +TEK++ +QV+ GM YL+
Sbjct: 82 LNKFLQKNKH-----------------VTEKNITELVHQVSMGMKYLE 112
>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 = 47.9 bits (114), Expect = 2e-06
Identities = 32/136 (23%), Positives = 57/136 (41%), Gaps = 29/136 (21%)
Query: 78 AFGKV-ICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVS----EMEMMKMIGQHINI 132
AFG+V +C + + G +AVK + E V+ E++++K + QH I
Sbjct: 14 AFGRVYLCYDVD----TG--RELAVKQVPFDPDSPETKKEVNALECEIQLLKNL-QHERI 66
Query: 133 INLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISF 192
+ G D L + +E+ P G+++D L+ + LTE +
Sbjct: 67 VQYYGCLRDDETLSIFMEYMPGGSVKDQLKAYGA-----------------LTETVTRKY 109
Query: 193 AYQVANGMHYLQSRKV 208
Q+ G+ YL S +
Sbjct: 110 TRQILEGVEYLHSNMI 125
>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 = 47.2 bits (112), Expect = 3e-06
Identities = 44/138 (31%), Positives = 61/138 (44%), Gaps = 21/138 (15%)
Query: 76 KCAFGKVICAEANGILKQGIITTVAVKMLK-EGHSDAEMMDLVSEMEMMKMIGQHINIIN 134
K FG V EA + G VAVKMLK + S +++ + + E MK H N+I
Sbjct: 9 KGEFGSV--REAQLKSEDGSFQKVAVKMLKADIFSSSDIEEFLREAACMKEF-DHPNVIK 65
Query: 135 LLGVCTQDGPL------YVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKD 188
L+GV + VI+ F HG+L FL R E P L +
Sbjct: 66 LIGVSLRSRAKGRLPIPMVILPFMKHGDLHTFLLMSRIG---EEPFT--------LPLQT 114
Query: 189 LISFAYQVANGMHYLQSR 206
L+ F +A+GM YL S+
Sbjct: 115 LVRFMIDIASGMEYLSSK 132
>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 = 46.7 bits (111), Expect = 3e-06
Identities = 29/124 (23%), Positives = 54/124 (43%), Gaps = 24/124 (19%)
Query: 93 QGIITTVAVKMLKEGHSDAE-MMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIV-E 150
G +V +K+L H D+ + S +M + H +++ L GVC +D ++V E
Sbjct: 27 PGQEVSVVLKVLGSDHRDSLAFFETAS---LMSQL-SHKHLVKLYGVCVRDE--NIMVEE 80
Query: 151 FAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKVGN 210
+ G L FL + N ++ + A Q+A+ +HYL+ +K+ +
Sbjct: 81 YVKFGPLDVFLHR----------------EKNNVSLHWKLDVAKQLASALHYLEDKKLVH 124
Query: 211 DAVR 214
V
Sbjct: 125 GNVC 128
>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 = 46.5 bits (110), Expect = 4e-06
Identities = 29/111 (26%), Positives = 54/111 (48%), Gaps = 20/111 (18%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGP-LYVIVEFAPHGNL 157
VA+K +++ ++ M M + H I+ LLG+C G L ++ + +P G+L
Sbjct: 39 VAIKTIQDRSGRQTFQEITDHMLAMGSL-DHAYIVRLLGICP--GASLQLVTQLSPLGSL 95
Query: 158 RDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
D +R+HR S L + L+++ Q+A GM+YL+ ++
Sbjct: 96 LDHVRQHRDS----------------LDPQRLLNWCVQIAKGMYYLEEHRM 130
>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 = 46.1 bits (109), Expect = 5e-06
Identities = 35/136 (25%), Positives = 58/136 (42%), Gaps = 25/136 (18%)
Query: 76 KCAFGKVICAEANGILKQGIITTVAVKMLKEGHSDA---EMMDLVSEMEMMKMIGQHINI 132
K A+G V C G+ QG + V L + A E L E++++K + +H+NI
Sbjct: 10 KGAYGTVYC----GLTNQGQLIAVKQVELDTSNVLAAEKEYEKLQEEVDLLKSL-KHVNI 64
Query: 133 INLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISF 192
+ LG C D + + +EF P G++ L + P L E +
Sbjct: 65 VQYLGTCLDDNTISIFMEFVPGGSISSILNRFGP-----------------LPEPVFCKY 107
Query: 193 AYQVANGMHYLQSRKV 208
Q+ +G+ YL + V
Sbjct: 108 TKQILDGVAYLHNNCV 123
>gnl|CDD|143338 cd07833, STKc_CDKL, Catalytic domain of Cyclin-Dependent protein
Kinase Like Serine/Threonine Kinases. Serine/Threonine
Kinases (STKs), Cyclin-dependent protein kinase like
(CDKL) subfamily, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
CDKL subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. CDKs belong to a large family of STKs that are
regulated by their cognate cyclins. Together, they are
involved in the control of cell-cycle progression,
transcription, and neuronal function. This subfamily is
composed of CDKL1-5 and similar proteins. Some CDKLs,
like CDKL1 and CDKL3, may be implicated in
transformation and others, like CDKL3 and CDKL5, are
associated with mental retardation when impaired. CDKL2
plays a role in learning and memory.
Length = 288
Score = 45.8 bits (109), Expect = 7e-06
Identities = 26/111 (23%), Positives = 49/111 (44%), Gaps = 19/111 (17%)
Query: 99 VAVKMLKEGHSDAEMMDL-VSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNL 157
VA+K KE D ++ + E+++++ + +H NI+NL + G LY++ E+ L
Sbjct: 29 VAIKKFKESEDDEDVKKTALREVKVLRQL-RHENIVNLKEAFRRKGRLYLVFEYVER-TL 86
Query: 158 RDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
+ L SP G L + S+ +Q+ + Y S +
Sbjct: 87 LELLE--------ASPGG--------LPPDAVRSYIWQLLQAIAYCHSHNI 121
>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 = 45.8 bits (108), Expect = 9e-06
Identities = 31/122 (25%), Positives = 58/122 (47%), Gaps = 25/122 (20%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLR 158
VA+K+L+E S +++ E +M +G + LLG+C + ++ + P+G L
Sbjct: 39 VAIKVLRENTSPKANKEILDEAYVMAGVGSPY-VCRLLGICLTS-TVQLVTQLMPYGCLL 96
Query: 159 DFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKVGNDAVRFIGF 218
D++R+++ G +DL+++ Q+A GM YL+ VR +
Sbjct: 97 DYVRENKDRIG----------------SQDLLNWCVQIAKGMSYLEE-------VRLVHR 133
Query: 219 DL 220
DL
Sbjct: 134 DL 135
>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 = 45.4 bits (107), Expect = 1e-05
Identities = 34/136 (25%), Positives = 65/136 (47%), Gaps = 26/136 (19%)
Query: 81 KVICAEANGILKQGIITT--------VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINI 132
KV+ + A G + +GI VA+K+L E ++ + E +M + H ++
Sbjct: 13 KVLGSGAFGTVYKGIWVPEGETVKIPVAIKILNETTGPKANVEFMDEALIMASM-DHPHL 71
Query: 133 INLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISF 192
+ LLGVC + ++ + PHG L D++ +H+ + G + L+++
Sbjct: 72 VRLLGVCLSP-TIQLVTQLMPHGCLLDYVHEHKDNIGSQL----------------LLNW 114
Query: 193 AYQVANGMHYLQSRKV 208
Q+A GM YL+ R++
Sbjct: 115 CVQIAKGMMYLEERRL 130
>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 = 44.9 bits (107), Expect = 1e-05
Identities = 19/110 (17%), Positives = 45/110 (40%), Gaps = 18/110 (16%)
Query: 98 TVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNL 157
A+K + + L+ E++ ++ + ++ G ++G + +++E+ G+L
Sbjct: 28 IYALKKIHVDGDEEFRKQLLRELKTLR-SCESPYVVKCYGAFYKEGEISIVLEYMDGGSL 86
Query: 158 RDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRK 207
D L+K + E L A Q+ G+ YL +++
Sbjct: 87 ADLLKKVGK-----------------IPEPVLAYIARQILKGLDYLHTKR 119
>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 = 44.8 bits (107), Expect = 2e-05
Identities = 31/141 (21%), Positives = 61/141 (43%), Gaps = 22/141 (15%)
Query: 72 YVKIKC----AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIG 127
Y IK +FGKV K ++ + + + S+ E D ++E++++K +
Sbjct: 2 YEIIKQIGKGSFGKVYLVRRKSDGKLYVLKEIDLSNM----SEKEREDALNEVKILKKL- 56
Query: 128 QHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEK 187
H NII + G L +++E+A G+L ++K + E+
Sbjct: 57 NHPNIIKYYESFEEKGKLCIVMEYADGGDLSQKIKKQKKEGKP-------------FPEE 103
Query: 188 DLISFAYQVANGMHYLQSRKV 208
++ + Q+ + YL SRK+
Sbjct: 104 QILDWFVQLCLALKYLHSRKI 124
>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 = 44.2 bits (104), Expect = 3e-05
Identities = 29/124 (23%), Positives = 58/124 (46%), Gaps = 24/124 (19%)
Query: 89 GILKQGIITT------VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQD 142
G +K+G+ VA+K+LK + + +++ E E+M + I+ ++GVC +
Sbjct: 9 GCVKKGVYKMRKKQIDVAIKVLKNENEKSVRDEMMREAEIMHQLDNPY-IVRMIGVCEAE 67
Query: 143 GPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHY 202
L +++E A G L FL + + +T +++ +QV+ GM Y
Sbjct: 68 A-LMLVMEMASGGPLNKFLSGKK----------------DEITVSNVVELMHQVSMGMKY 110
Query: 203 LQSR 206
L+ +
Sbjct: 111 LEGK 114
>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 = 44.1 bits (104), Expect = 3e-05
Identities = 25/86 (29%), Positives = 44/86 (51%), Gaps = 4/86 (4%)
Query: 79 FGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGV 138
FGKV+ +E I + V VK LK S E + + + + +++ QH NI+ LG
Sbjct: 8 FGKVLLSE---IYTDTGVARVVVKELKANASSKEQNEFLQQGDPYRIL-QHPNILQCLGQ 63
Query: 139 CTQDGPLYVIVEFAPHGNLRDFLRKH 164
C + P ++ E+ G+L+ +L +
Sbjct: 64 CVEAIPYLLVFEYCELGDLKSYLSQE 89
>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 = 42.0 bits (99), Expect = 1e-04
Identities = 27/113 (23%), Positives = 46/113 (40%), Gaps = 22/113 (19%)
Query: 100 AVKMLKEGHSDAEMMDLVSEME----MMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHG 155
AVK + + V ++E ++ + QH NI+ LG ++ LY+ +E P G
Sbjct: 29 AVKEVSLADDGQTGQEAVKQLEQEIALLSKL-QHPNIVQYLGTEREEDNLYIFLELVPGG 87
Query: 156 NLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
+L L+K+ + P+ YT Q+ G+ YL R
Sbjct: 88 SLAKLLKKYGS---FPEPVIRLYTR--------------QILLGLEYLHDRNT 123
>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 = 42.2 bits (100), Expect = 1e-04
Identities = 26/94 (27%), Positives = 43/94 (45%), Gaps = 17/94 (18%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKML------KEGHSDAEMMDLVSEMEMMKMIGQHIN 131
+F V+ A+ K+ A+K+L KE + E E++ + H
Sbjct: 13 SFSTVVLAKEKETNKE-----YAIKILDKRQLIKEKKVKYVKI----EKEVLTRLNGHPG 63
Query: 132 IINLLGVCTQD-GPLYVIVEFAPHGNLRDFLRKH 164
II L QD LY ++E+AP+G L ++RK+
Sbjct: 64 IIKLYY-TFQDEENLYFVLEYAPNGELLQYIRKY 96
>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 = 41.0 bits (97), Expect = 3e-04
Identities = 30/132 (22%), Positives = 60/132 (45%), Gaps = 25/132 (18%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
FG+V A + + VA+K++K S + +++E++++K +H NI+ G
Sbjct: 12 GFGEVYKAR-HKRTGK----EVAIKVIKL-ESKEKKEKIINEIQILKKC-KHPNIVKYYG 64
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISF-AYQV 196
+ L++++EF G+L+D L+ LTE I++ ++
Sbjct: 65 SYLKKDELWIVMEFCSGGSLKDLLKST----------------NQTLTESQ-IAYVCKEL 107
Query: 197 ANGMHYLQSRKV 208
G+ YL S +
Sbjct: 108 LKGLEYLHSNGI 119
>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 = 39.8 bits (93), Expect = 6e-04
Identities = 28/138 (20%), Positives = 57/138 (41%), Gaps = 30/138 (21%)
Query: 76 KCAFGKVICA--EANG---ILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHI 130
K +FG V +A+ +KQ ++ + + +E +A ++ ++++
Sbjct: 10 KGSFGVVFKVVRKADKRVYAMKQIDLSKMNRREREEAIDEARVL---AKLD-------SS 59
Query: 131 NIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLI 190
II G L +++E+A +G+L L+ R G L E +
Sbjct: 60 YIIRYYESFLDKGKLNIVMEYAENGDLHKLLKMQR---------------GRPLPEDQVW 104
Query: 191 SFAYQVANGMHYLQSRKV 208
F Q+ G+ +L S+K+
Sbjct: 105 RFFIQILLGLAHLHSKKI 122
>gnl|CDD|173743 cd07846, STKc_CDKL2_3, Catalytic domain of the Serine/Threonine
Kinases, Cyclin-Dependent protein Kinase Like 2 and 3.
Serine/Threonine Kinases (STKs), Cyclin-dependent
protein kinase like 2 (CDKL2) and CDKL3 subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDKL2 and CDKL3
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. CDKs belong to a large family of STKs that are
regulated by their cognate cyclins. Together, they are
involved in the control of cell-cycle progression,
transcription, and neuronal function. CDKL2, also called
p56 KKIAMRE, is expressed in testis, kidney, lung, and
brain. It functions mainly in mature neurons and plays
an important role in learning and memory. Inactivation
of CDKL3, also called NKIAMRE (NKIATRE in rat), by
translocation is associated with mild mental
retardation. It has been reported that CDKL3 is lost in
leukemic cells having a chromosome arm 5q deletion, and
may contribute to the transformed phenotype.
Length = 286
Score = 39.3 bits (92), Expect = 0.001
Identities = 28/111 (25%), Positives = 49/111 (44%), Gaps = 19/111 (17%)
Query: 99 VAVKMLKEGHSDAEMMDL-VSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNL 157
VA+K E D + + + E+ M+K + +H N++NL+ V + LY++ EF H L
Sbjct: 29 VAIKKFLESEDDKMVKKIAMREIRMLKQL-RHENLVNLIEVFRRKKRLYLVFEFVDHTVL 87
Query: 158 RDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
D Y NG L E + + +Q+ G+ + S +
Sbjct: 88 DDL---------------EKYPNG--LDESRVRKYLFQILRGIEFCHSHNI 121
>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 = 39.2 bits (91), Expect = 0.001
Identities = 38/133 (28%), Positives = 58/133 (43%), Gaps = 27/133 (20%)
Query: 78 AFGKVICAE--ANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINL 135
AFGKV A+ G L A K++ E S+ E+ D + E+E++ H I+ L
Sbjct: 24 AFGKVYKAKNKETGAL-------AAAKVI-ETKSEEELEDYMVEIEILATC-NHPYIVKL 74
Query: 136 LGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQ 195
LG DG L++++EF P G + + E G LTE + Q
Sbjct: 75 LGAFYWDGKLWIMIEFCPGGAVDAIM--------LELDRG--------LTEPQIQVICRQ 118
Query: 196 VANGMHYLQSRKV 208
+ + YL S K+
Sbjct: 119 MLEALQYLHSMKI 131
>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 = 37.6 bits (87), Expect = 0.003
Identities = 28/133 (21%), Positives = 65/133 (48%), Gaps = 24/133 (18%)
Query: 78 AFGKVICAEANGILKQGIITTVAV-KM-LKEGHSDAEMMDLVSEMEMMKMIGQHINIINL 135
+FGK+ A+A + +I + + KM +KE + + + L+++M+ H NI+
Sbjct: 12 SFGKIYLAKAKSDSEHCVIKEIDLTKMPVKEKEASKKEVILLAKMK-------HPNIVTF 64
Query: 136 LGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQ 195
++G L++++E+ G+L + + R G + +E ++S+ Q
Sbjct: 65 FASFQENGRLFIVMEYCDGGDLMKRINRQR---------------GVLFSEDQILSWFVQ 109
Query: 196 VANGMHYLQSRKV 208
++ G+ ++ RK+
Sbjct: 110 ISLGLKHIHDRKI 122
>gnl|CDD|132961 cd06630, STKc_MEKK1, Catalytic domain of the Protein
Serine/Threonine Kinase, MAP/ERK kinase kinase 1.
Serine/threonine kinases (STKs), MAP/ERK kinase kinase 1
(MEKK1) subfamily, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MEKK1 subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. MEKK1 is a mitogen-activated protein kinase
(MAPK) kinase kinase (MAPKKK or MKKK or MAP3K), that
phosphorylates and activates MAPK kinases (MAPKKs or
MKKs or MAP2Ks), which in turn phosphorylate and
activate MAPKs during signaling cascades that are
important in mediating cellular responses to
extracellular signals. MEKK1 activates the extracellular
signal-regulated kinase 1/2 (ERK1/2) and c-Jun
N-terminal kinase (JNK) pathways by activating their
respective MAPKKs, MEK1/2 and MKK4/MKK7, respectively.
MEKK1 is important in regulating cell survival and
apoptosis. MEKK1 also plays a role in cell migration,
tissue maintenance and homeostasis, and wound healing.
Length = 268
Score = 37.1 bits (86), Expect = 0.004
Identities = 24/117 (20%), Positives = 46/117 (39%), Gaps = 23/117 (19%)
Query: 97 TTVAVKMLK-----EGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEF 151
T +AVK + + + L E+ +M + H +II +LG +D + VE+
Sbjct: 26 TLMAVKQVTYVRNTSSEQEEVVEALRKEIRLMARL-NHPHIIRMLGATCEDSHFNLFVEW 84
Query: 152 APHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
G++ L K+ E +I++ Q+ G+ YL ++
Sbjct: 85 MAGGSVSHLLSKYGA-----------------FKEAVIINYTEQLLRGLSYLHENQI 124
>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 = 37.0 bits (86), Expect = 0.005
Identities = 18/103 (17%), Positives = 47/103 (45%), Gaps = 20/103 (19%)
Query: 112 EMMD------LVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHR 165
EMMD + E++++K + H N+I L ++ L +++E A G+L ++ +
Sbjct: 39 EMMDAKARQDCLKEIDLLKQL-DHPNVIKYLASFIENNELNIVLELADAGDLSRMIKHFK 97
Query: 166 PSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
++ E+ + + Q+ + + ++ S+++
Sbjct: 98 -------------KQKRLIPERTIWKYFVQLCSALEHMHSKRI 127
>gnl|CDD|173734 cd07830, STKc_MAK_like, Catalytic domain of Male germ
cell-Associated Kinase-like Serine/Threonine Kinases.
Serine/Threonine Kinases (STKs), Male germ
cell-Associated Kinase (MAK)-like subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MAK-like subfamily
is part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. This subfamily is composed of human MAK and
MAK-related kinase (MRK), Saccharomyces cerevisiae
Ime2p, Schizosaccharomyces pombe Mei4-dependent protein
3 (Mde3) and Pit1, Caenorhabditis elegans dyf-5,
Arabidopsis thaliana MHK, and similar proteins. These
proteins play important roles during meiosis. MAK is
highly expressed in testicular cells specifically in the
meiotic phase, but is not essential for spermatogenesis
and fertility. It functions as a coactivator of the
androgen receptor in prostate cells. MRK, also called
Intestinal Cell Kinase (ICK), is expressed ubiquitously,
with highest expression in the ovary and uterus. A
missense mutation in MRK causes
endocrine-cerebro-osteodysplasia (ECO), suggesting that
this protein plays an important role in the development
of many organs. MAK and MRK may be involved in
regulating cell cycle and cell fate. Ime2p is a
meiosis-specific kinase that is important during meiotic
initiation and during the later stages of meiosis. Mde3
functions downstream of the transcription factor Mei-4
which is essential for meiotic prophase I.
Length = 283
Score = 37.1 bits (87), Expect = 0.005
Identities = 27/108 (25%), Positives = 51/108 (47%), Gaps = 18/108 (16%)
Query: 97 TTVAVK-MLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHG 155
VA+K M K+ +S E M+L E++ ++ + +H NI+ L V ++ LY + E+ G
Sbjct: 25 ELVAIKKMKKKFYSWEECMNL-REVKSLRKLNEHPNIVKLKEVFRENDELYFVFEYM-EG 82
Query: 156 NLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYL 203
NL ++ + G +E + S YQ+ G+ ++
Sbjct: 83 NLYQLMKDRK---------------GKPFSESVIRSIIYQILQGLAHI 115
>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 = 37.0 bits (86), Expect = 0.006
Identities = 21/100 (21%), Positives = 43/100 (43%), Gaps = 14/100 (14%)
Query: 109 SDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSS 168
S E D V+E+ ++ + H NII+ L +++E+AP G+L + K +
Sbjct: 39 SQKEREDAVNEIRILASV-NHPNIISYKEAFLDGNKLCIVMEYAPFGDLSKAISKRKKK- 96
Query: 169 GYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
++ E+++ Q+ G+ L +K+
Sbjct: 97 ------------RKLIPEQEIWRIFIQLLRGLQALHEQKI 124
>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 = 36.8 bits (85), Expect = 0.007
Identities = 33/142 (23%), Positives = 63/142 (44%), Gaps = 24/142 (16%)
Query: 71 EYVKIKC----AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMI 126
+Y KI+ AFG V K II + V E + E + +E +++K++
Sbjct: 1 KYEKIRVVGRGAFGIVHLCRRKADQKLVIIKQIPV----EQMTKDERLAAQNECQVLKLL 56
Query: 127 GQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTE 186
H NII +D L +++E+AP G L ++++K S +L E
Sbjct: 57 -SHPNIIEYYENFLEDKALMIVMEYAPGGTLAEYIQKRCNS---------------LLDE 100
Query: 187 KDLISFAYQVANGMHYLQSRKV 208
++ F Q+ +H++ ++ +
Sbjct: 101 DTILHFFVQILLALHHVHTKLI 122
>gnl|CDD|173752 cd07861, STKc_CDK1_euk, Catalytic domain of the Serine/Threonine
Kinase, Cyclin-Dependent protein Kinase 1 from higher
eukaryotes-like. Serine/Threonine Kinases (STKs),
Cyclin-Dependent protein Kinase 1 (CDK1) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK1 subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. CDKs belong to a
large family of STKs that are regulated by their cognate
cyclins. Together, they are involved in the control of
cell-cycle progression, transcription, and neuronal
function. This subfamily is composed of CDK1 from higher
eukaryotes. CDK1 is also called Cell division control
protein 2 (Cdc2) or p34 protein kinase, and is regulated
by cyclins A, B, and E. The CDK1/cyclin A complex
controls G2 phase entry and progression. CDK1/cyclin A2
has also been implicated as an important regulator of S
phase events. The CDK1/cyclin B complex is critical for
G2 to M phase transition. It induces mitosis by
activating nuclear enzymes that regulate chromatin
condensation, nuclear membrane degradation,
mitosis-specific microtubule and cytoskeletal
reorganization. CDK1 also associates with cyclin E and
plays a role in the entry into S phase. CDK1
transcription is stable throughout the cell cycle but is
modulated in some pathological conditions. It may play a
role in regulating apoptosis under these conditions. In
breast cancer cells, HER2 can mediate apoptosis by
inactivating CDK1. Activation of CDK1 may contribute to
HIV-1 induced apoptosis and neuronal apoptosis in
neurodegenerative diseases.
Length = 285
Score = 36.6 bits (85), Expect = 0.009
Identities = 26/92 (28%), Positives = 44/92 (47%), Gaps = 16/92 (17%)
Query: 117 VSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGS 176
+ E+ ++K + QH NI+ L V Q+ LY+I EF L L+K+ S
Sbjct: 47 IREISLLKEL-QHPNIVCLQDVLMQESRLYLIFEF-----LSMDLKKYLDSLP------- 93
Query: 177 AYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
G + + + S+ YQ+ G+ + SR+V
Sbjct: 94 ---KGQYMDAELVKSYLYQILQGILFCHSRRV 122
>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 = 35.9 bits (83), Expect = 0.012
Identities = 29/106 (27%), Positives = 48/106 (45%), Gaps = 22/106 (20%)
Query: 107 GHSDAEMMDLV----SEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLR 162
G D+ D+V SE+E +K + H+NI+ LG T + L + +E+ P G++ LR
Sbjct: 42 GRHDSRQKDMVKALRSEIETLKDL-DHLNIVQYLGFETTEEYLSIFLEYVPGGSIGSCLR 100
Query: 163 KHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
+ +E L +T QV G+ YL S+ +
Sbjct: 101 TYGR---FEEQLVRFFTE--------------QVLEGLAYLHSKGI 129
>gnl|CDD|173740 cd07842, STKc_CDK8_like, Catalytic domain of Cyclin-Dependent
protein Kinase 8-like Serine/Threonine Kinases.
Serine/Threonine Kinases (STKs), Cyclin-Dependent
protein Kinase 8 (CDK8)-like subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK8-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 CDK8, CDC2L6, and similar proteins. CDK8
functions as a negative or positive regulator of
transcription, depending on the scenario. Together with
its regulator, cyclin C, it reversibly associates with
the multi-subunit core Mediator complex, a cofactor that
is involved in regulating RNA polymerase II (RNAP
II)-dependent transcription. CDC2L6 also associates with
Mediator in complexes lacking CDK8. In VP16-dependent
transcriptional activation, CDK8 and CDC2L6 exerts
opposing effects by positive and negative regulation,
respectively, in similar conditions.
Length = 316
Score = 36.1 bits (84), Expect = 0.012
Identities = 26/114 (22%), Positives = 55/114 (48%), Gaps = 24/114 (21%)
Query: 99 VAVKMLKEGHSDAEMMDLVS-----EMEMMKMIGQHINIINLLGVCTQDGP--LYVIVEF 151
A+K K D E +S E+ +++ + +H N+++L+ V + +Y++ ++
Sbjct: 30 YAIKKFK---GDKEQYTGISQSACREIALLREL-KHENVVSLVEVFLEHADKSVYLLFDY 85
Query: 152 APHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQS 205
A H +L ++ HR + +++ K L+ +Q+ NG+HYL S
Sbjct: 86 AEH-DLWQIIKFHRQA-------KRVSIPPSMV--KSLL---WQILNGVHYLHS 126
>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 = 36.1 bits (83), Expect = 0.013
Identities = 30/110 (27%), Positives = 48/110 (43%), Gaps = 18/110 (16%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLR 158
V +K+L H D + MM+ + H +I+ L GVC +D ++ EF G L
Sbjct: 35 VILKVLDPSHRDISLA-FFETASMMRQV-SHKHIVLLYGVCVRDVENIMVEEFVEFGPLD 92
Query: 159 DFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
F+ HR S +VLT A Q+A+ + YL+ + +
Sbjct: 93 LFM--HRKS--------------DVLTTPWKFKVAKQLASALSYLEDKDL 126
>gnl|CDD|215036 PLN00034, PLN00034, mitogen-activated protein kinase kinase;
Provisional.
Length = 353
Score = 36.0 bits (83), Expect = 0.016
Identities = 22/109 (20%), Positives = 46/109 (42%), Gaps = 22/109 (20%)
Query: 100 AVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRD 159
A+K++ H D + E+E+++ + H N++ + +G + V++EF G+L
Sbjct: 103 ALKVIYGNHEDTVRRQICREIEILRDV-NHPNVVKCHDMFDHNGEIQVLLEFMDGGSLE- 160
Query: 160 FLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
++ E+ L A Q+ +G+ YL R +
Sbjct: 161 --------------------GTHIADEQFLADVARQILSGIAYLHRRHI 189
>gnl|CDD|173726 cd06610, STKc_OSR1_SPAK, Catalytic domain of the Protein
Serine/Threonine Kinases, Oxidative stress response
kinase and Ste20-related proline alanine-rich kinase.
Serine/threonine kinases (STKs), oxidative stress
response kinase (OSR1) and Ste20-related proline
alanine-rich kinase (SPAK) subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The OSR1 and SPAK
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. SPAK is also referred to as STK39 or PASK
(proline-alanine-rich STE20-related kinase). OSR1 and
SPAK regulate the activity of cation-chloride
cotransporters through direct interaction and
phosphorylation. They are also implicated in
cytoskeletal rearrangement, cell differentiation,
transformation and proliferation. OSR1 and SPAK contain
a conserved C-terminal (CCT) domain, which recognizes a
unique motif ([RK]FX[VI]) present in their activating
kinases (WNK1/WNK4) and their substrates.
Length = 267
Score = 35.4 bits (82), Expect = 0.016
Identities = 22/108 (20%), Positives = 42/108 (38%), Gaps = 15/108 (13%)
Query: 98 TVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNL 157
VA+K + + +L E++ M H N++ L++++ + G+L
Sbjct: 28 KVAIKRIDLEKCQTSVDELRKEVQAMSQC-NHPNVVKYYTSFVVGDELWLVMPYLSGGSL 86
Query: 158 RDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQS 205
D ++ P G + + + VL E V G+ YL S
Sbjct: 87 LDIMKSSYPRGGLDEAIIAT-----VLKE---------VLKGLEYLHS 120
>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 = 35.5 bits (82), Expect = 0.017
Identities = 20/100 (20%), Positives = 43/100 (43%), Gaps = 16/100 (16%)
Query: 109 SDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSS 168
S+ E D ++E+ ++ ++ QH NII D L + +E+A G L D +
Sbjct: 39 SEKERRDALNEIVILSLL-QHPNIIAYYNHFMDDNTLLIEMEYANGGTLYDKI------- 90
Query: 169 GYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
G + E+ ++ + +Q+ + + Y+ +
Sbjct: 91 --------VRQKGQLFEEEMVLWYLFQIVSAVSYIHKAGI 122
>gnl|CDD|173671 cd05580, STKc_PKA, Catalytic domain of the Protein Serine/Threonine
Kinase, cAMP-dependent protein kinase. Serine/Threonine
Kinases (STKs), cAMP-dependent protein kinase (PKA)
subfamily, catalytic (c) subunit. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The PKA
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase (PI3K). This subfamily is composed of the
cAMP-dependent proteins kinases, PKA and PRKX. The
inactive PKA holoenzyme is a heterotetramer composed of
two phosphorylated and active catalytic (C) subunits
with a dimer of regulatory (R) subunits. Activation is
achieved through the binding of the important second
messenger cAMP to the R subunits, which leads to the
dissociation of PKA into the R dimer and two active C
subunits. PKA is present ubiquitously in cells and
interacts with many different downstream targets. It
plays a role in the regulation of diverse processes such
as growth, development, memory, metabolism, gene
expression, immunity, and lipolysis.
Length = 290
Score = 35.6 bits (83), Expect = 0.019
Identities = 26/98 (26%), Positives = 44/98 (44%), Gaps = 27/98 (27%)
Query: 67 INSQEYVKIKCAFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMI 126
S +Y +K IL + I VK+ + H +++E +++ I
Sbjct: 23 KGSGKYYALK-------------ILSKAKI----VKLKQVEH-------VLNEKRILQSI 58
Query: 127 GQHINIINLLGVCTQDGP-LYVIVEFAPHGNLRDFLRK 163
+H ++NL G QD LY+++E+ P G L LRK
Sbjct: 59 -RHPFLVNLYG-SFQDDSNLYLVMEYVPGGELFSHLRK 94
>gnl|CDD|143333 cd05118, STKc_CMGC, Catalytic domain of CMGC family
Serine/Threonine Kinases. Serine/Threonine Kinases
(STKs), CMGC family, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
CMGC family is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. The CMGC family consists of Cyclin-Dependent
protein Kinases (CDKs), Mitogen-activated protein
kinases (MAPKs) such as Extracellular signal-regulated
kinase (ERKs), c-Jun N-terminal kinases (JNKs), and p38,
and similar proteins. CDKs belong to a large subfamily
of STKs that are regulated by their cognate cyclins.
Together, they are involved in the control of cell-cycle
progression, transcription, and neuronal function. MAPKs
serve as important mediators of cellular responses to
extracellular signals. They control critical cellular
functions including differentiation, proliferation,
migration, and apoptosis. They are also implicated in
the pathogenesis of many diseases including multiple
types of cancer, stroke, diabetes, and chronic
inflammation.
Length = 283
Score = 35.4 bits (82), Expect = 0.020
Identities = 27/108 (25%), Positives = 46/108 (42%), Gaps = 19/108 (17%)
Query: 99 VAVKMLKEG-HSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNL 157
VA+K +K S+ + E++++K + H NII LL V G LY++ EF +L
Sbjct: 27 VAIKKIKLRFESEGIPKTALREIKLLKEL-NHPNIIKLLDVFRHKGDLYLVFEFMDT-DL 84
Query: 158 RDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQS 205
++ L E + S+ YQ+ G+ + S
Sbjct: 85 YKLIK----------------DRQRGLPESLIKSYLYQLLQGLAFCHS 116
>gnl|CDD|173730 cd06624, STKc_ASK, Catalytic domain of the Protein Serine/Threonine
Kinase, Apoptosis signal-regulating kinase.
Serine/threonine kinases (STKs), Apoptosis
signal-regulating kinase (ASK) subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The ASK subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. Subfamily members
are mitogen-activated protein kinase (MAPK) kinase
kinases (MAPKKKs or MKKKs or MAP3Ks) and include ASK1,
ASK2, and MAPKKK15. MAPKKKs phosphorylate and activate
MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn
phosphorylate and activate MAPKs during signaling
cascades that are important in mediating cellular
responses to extracellular signals. ASK1 (also called
MAPKKK5) functions in the c-Jun N-terminal kinase (JNK)
and p38 MAPK signaling pathways by directly activating
their respective MAPKKs, MKK4/MKK7 and MKK3/MKK6. It
plays important roles in cytokine and stress responses,
as well as in reactive oxygen species (ROS)-mediated
cellular responses. ASK1 is implicated in various
diseases mediated by oxidative stress including
inschemic heart disease, hypertension, vessel injury,
brain ischemia, Fanconi anemia, asthma, and pulmonary
edema, among others. ASK2 (also called MAPKKK6)
functions only in a heteromeric complex with ASK1, and
can activate ASK1 by direct phosphorylation. The
function of MAPKKK15 is still unknown.
Length = 268
Score = 35.2 bits (81), Expect = 0.020
Identities = 27/111 (24%), Positives = 49/111 (44%), Gaps = 16/111 (14%)
Query: 98 TVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNL 157
+A+K + E S + L E+ + + +H NI+ LG +++G + +E P G+L
Sbjct: 35 RIAIKEIPERDSR-YVQPLHEEIALHSYL-KHRNIVQYLGSDSENGFFKIFMEQVPGGSL 92
Query: 158 RDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
LR S G N E+ +I + Q+ G+ YL ++
Sbjct: 93 SALLR---------SKWGPLKDN-----EQTIIFYTKQILEGLKYLHDNQI 129
>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 = 35.1 bits (81), Expect = 0.022
Identities = 30/131 (22%), Positives = 57/131 (43%), Gaps = 23/131 (17%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLG 137
AFGKV A+ + G+ A K+++ S+ E+ D + E++++ +H NI+ L
Sbjct: 17 AFGKVYKAQHK---ETGLFA--AAKIIQIE-SEEELEDFMVEIDILSEC-KHPNIVGLYE 69
Query: 138 VCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVA 197
+ L++++EF G L + + LTE + Q+
Sbjct: 70 AYFYENKLWILIEFCDGGALDSIMLE----------------LERGLTEPQIRYVCRQML 113
Query: 198 NGMHYLQSRKV 208
+++L S KV
Sbjct: 114 EALNFLHSHKV 124
>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 = 35.3 bits (82), Expect = 0.022
Identities = 15/66 (22%), Positives = 34/66 (51%), Gaps = 3/66 (4%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLR 158
VA+K ++ +++E+ +MK +H NI++ L+V++E+ G+L
Sbjct: 47 VAIKKMRLR--KQNKELIINEILIMKDC-KHPNIVDYYDSYLVGDELWVVMEYMDGGSLT 103
Query: 159 DFLRKH 164
D + ++
Sbjct: 104 DIITQN 109
>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 = 34.7 bits (80), Expect = 0.034
Identities = 23/111 (20%), Positives = 42/111 (37%), Gaps = 16/111 (14%)
Query: 100 AVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCT--QDGPLYVIVEFAPHGNL 157
A+K + + ++ E+E+ K + I+ G + + +E+ G+L
Sbjct: 30 ALKTITTDPNPDLQKQILRELEINKSC-KSPYIVKYYGAFLDESSSSIGIAMEYCEGGSL 88
Query: 158 RDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
+K + G + EK L A V G+ YL SRK+
Sbjct: 89 DSIYKKVK-------------KRGGRIGEKVLGKIAESVLKGLSYLHSRKI 126
>gnl|CDD|132968 cd06637, STKc_TNIK, Catalytic domain of the Protein
Serine/Threonine Kinase, Traf2- and Nck-interacting
kinase. Serine/threonine kinases (STKs), Traf2- and
Nck-interacting kinase (TNIK) subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The TNIK subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. Members of this
subfamily contain an N-terminal catalytic domain and a
C-terminal citron homology (CNH) regulatory domain,
similar to mitogen-activated protein kinase (MAPK),
kinase kinase kinase 4 (MAP4K4), and MAP4K6. MAP4Ks
participate in some MAPK signaling pathways by
activating a MAPK kinase kinase (MAPKKK or MAP3K or
MKKK). TNIK is an effector of Rap2, a small GTP-binding
protein from the Ras family. TNIK specifically activates
the c-Jun N-terminal kinase (JNK) pathway and plays a
role in regulating the actin cytoskeleton.
Length = 272
Score = 33.9 bits (77), Expect = 0.061
Identities = 23/103 (22%), Positives = 42/103 (40%), Gaps = 21/103 (20%)
Query: 112 EMMDLVSEMEMMKMIGQHINIINLLGVCTQDGP------LYVIVEFAPHGNLRDFLRKHR 165
E ++ E+ M+K H NI G + P L++++EF G++ D ++
Sbjct: 45 EEEEIKQEINMLKKYSHHRNIATYYGAFIKKNPPGMDDQLWLVMEFCGAGSVTDLIKN-- 102
Query: 166 PSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
T GN L E+ + ++ G+ +L KV
Sbjct: 103 -------------TKGNTLKEEWIAYICREILRGLSHLHQHKV 132
>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 = 33.7 bits (78), Expect = 0.066
Identities = 15/61 (24%), Positives = 28/61 (45%), Gaps = 5/61 (8%)
Query: 97 TTVAVKMLKEGHSDAEM----MDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFA 152
VA+K +K G + E+++++ + +H NII LL V + ++ EF
Sbjct: 26 RIVAIKKIKLGERKEAKDGINFTALREIKLLQEL-KHPNIIGLLDVFGHKSNINLVFEFM 84
Query: 153 P 153
Sbjct: 85 E 85
>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 = 33.7 bits (77), Expect = 0.068
Identities = 27/118 (22%), Positives = 50/118 (42%), Gaps = 24/118 (20%)
Query: 97 TTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQ--HINIINLLGVCTQDGPLYVIVEFAPH 154
T V +K+L + H + S E M+ Q H +++ GVC ++ E+
Sbjct: 28 TEVLLKVLDKSHRNYSE----SFFEAASMMSQLSHKHLVLNYGVCVCGDESIMVQEYVKF 83
Query: 155 GNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV--GN 210
G+L +L+K N N++ + A Q+A +H+L+ + + GN
Sbjct: 84 GSLDTYLKK----------------NKNLINISWKLEVAKQLAWALHFLEDKGLTHGN 125
>gnl|CDD|173739 cd07838, STKc_CDK4_6_like, Catalytic domain of Cyclin-Dependent
protein Kinase 4 and 6-like Serine/Threonine Kinases.
Serine/Threonine Kinases (STKs), Cyclin-dependent
protein kinase 4 (CDK4) and CDK6-like subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK4/6-like
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. CDKs belong to a large family of STKs that are
regulated by their cognate cyclins. Together, they are
involved in the control of cell-cycle progression,
transcription, and neuronal function. CDK4 and CDK6
partner with D-type cyclins to regulate the early G1
phase of the cell cycle. They are the first kinase
activated by mitogenic signals to release cells from the
G0 arrested state. CDK4 and CDK6 are both expressed
ubiquitously, associate with all three D cyclins (D1, D2
and D3), and phosphorylate the retinoblastoma (pRb)
protein. They are also regulated by the INK4 family of
inhibitors which associate with either the CDK alone or
the CDK/cyclin complex. CDK4 and CDK6 show differences
in subcellular localization, sensitivity to some
inhibitors, timing in activation, tumor selectivity, and
possibly substrate profiles. Although CDK4 and CDK6 seem
to show some redundancy, they also have discrete,
nonoverlapping functions. CDK6 plays an important role
in cell differentiation.
Length = 287
Score = 33.0 bits (76), Expect = 0.10
Identities = 36/141 (25%), Positives = 59/141 (41%), Gaps = 33/141 (23%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEM-MDLVSEMEMMKMIGQ--HINIIN 134
A+G V A L G VA+K ++ S+ + + + E+ ++K + H NI+
Sbjct: 11 AYGTVYKARD---LNTG--RFVALKKVRVPLSEEGIPLSTLREIALLKQLESFEHPNIVR 65
Query: 135 LLGVCTQDGP-------LYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEK 187
LL VC GP L ++ E +L +L K P G T K
Sbjct: 66 LLDVC--HGPRTDRELKLTLVFEHV-DQDLATYLSKC-PKPGLPPE-----------TIK 110
Query: 188 DLISFAYQVANGMHYLQSRKV 208
DL+ Q+ G+ +L S ++
Sbjct: 111 DLM---RQLLRGVDFLHSHRI 128
>gnl|CDD|173616 PTZ00426, PTZ00426, cAMP-dependent protein kinase catalytic
subunit; Provisional.
Length = 340
Score = 33.4 bits (76), Expect = 0.10
Identities = 24/90 (26%), Positives = 43/90 (47%), Gaps = 7/90 (7%)
Query: 78 AFGKVICAEANGILKQGIITTVAVKMLKEGH--SDAEMMDLVSEMEMMKMIGQHINIINL 135
+FG+VI A K VA+K ++ ++ + SE +++ I H +NL
Sbjct: 42 SFGRVILAT----YKNEDFPPVAIKRFEKSKIIKQKQVDHVFSERKILNYI-NHPFCVNL 96
Query: 136 LGVCTQDGPLYVIVEFAPHGNLRDFLRKHR 165
G + LY+++EF G FLR+++
Sbjct: 97 YGSFKDESYLYLVLEFVIGGEFFTFLRRNK 126
>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 = 32.9 bits (76), Expect = 0.11
Identities = 18/83 (21%), Positives = 31/83 (37%), Gaps = 19/83 (22%)
Query: 128 QHINIINLLGVCT--QDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLT 185
+H NI+ L + T G +Y++ E+ H +L L T
Sbjct: 56 RHPNIVRLKEIVTSKGKGSIYMVFEYMDH-DLTGLLDSP----------------EVKFT 98
Query: 186 EKDLISFAYQVANGMHYLQSRKV 208
E + + Q+ G+ YL S +
Sbjct: 99 ESQIKCYMKQLLEGLQYLHSNGI 121
>gnl|CDD|173756 cd08216, PK_STRAD, Pseudokinase domain of STE20-related kinase
adapter protein. Protein Kinase family, STE20-related
kinase adapter protein (STRAD) subfamily, pseudokinase
domain. The STRAD subfamily is part of a larger
superfamily that includes the catalytic domains of
serine/threonine kinases (STKs), protein tyrosine
kinases, RIO kinases, aminoglycoside phosphotransferase,
choline kinase, and phosphoinositide 3-kinase. The
pseudokinase domain shows similarity to protein kinases
but lacks crucial residues for catalytic activity. STRAD
forms a complex with the scaffolding protein MO25, and
the STK, LKB1, resulting in the activation of the
kinase. In the complex, LKB1 phosphorylates and
activates adenosine monophosphate-activated protein
kinases (AMPKs), which regulate cell energy metabolism
and cell polarity. LKB1 is a tumor suppressor linked to
the rare inherited disease, Peutz-Jeghers syndrome,
which is characterized by a predisposition to benign
polyps and hyperpigmentation of the buccal mucosa. There
are two forms of STRAD, alpha and beta, that complex
with LKB1 and MO25. The structure of STRAD-alpha is
available and shows that this protein binds ATP, has an
ordered activation loop, and adopts a closed
conformation typical of fully active protein kinases. It
does not possess activity due to nonconservative
substitutions of essential catalytic residues. ATP
binding enhances the affinity of STRAD for MO25. The
conformation of STRAD-alpha stabilized through ATP and
MO25 may be needed to activate LKB1.
Length = 314
Score = 33.1 bits (76), Expect = 0.12
Identities = 21/72 (29%), Positives = 34/72 (47%), Gaps = 2/72 (2%)
Query: 97 TTVAVKMLK-EGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHG 155
T VAVK + + S ++ L E+ + + QH NI+ + D LYV+ +G
Sbjct: 26 TLVAVKKINLDSCSKEDLKLLQQEIITSRQL-QHPNILPYVTSFIVDSELYVVSPLMAYG 84
Query: 156 NLRDFLRKHRPS 167
+ D L+ H P
Sbjct: 85 SCEDLLKTHFPE 96
>gnl|CDD|143372 cd07867, STKc_CDC2L6, Catalytic domain of Serine/Threonine Kinase,
Cell Division Cycle 2-like 6. Serine/Threonine Kinases
(STKs), Cell Division Cycle 2-like 6 (CDC2L6) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDC2L6 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. CDC2L6 is also called CDK8-like and was
previously referred to as CDK11. However, this is a
confusing nomenclature as CDC2L6 is distinct from
CDC2L1, which is represented by the two protein products
from its gene, called CDK11(p110) and CDK11(p58), as
well as the caspase-processed CDK11(p46). CDK11(p110),
CDK11(p58), and CDK11(p46)do not belong to this
subfamily. CDC2L6 is an associated protein of Mediator,
a multiprotein complex that provides a platform to
connect transcriptional and chromatin regulators and
cofactors, in order to activate and mediate RNA
polymerase II transcription. CDC2L6 is localized mainly
in the nucleus amd exerts an opposing effect to CDK8 in
VP16-dependent transcriptional activation by being a
negative regulator.
Length = 317
Score = 32.7 bits (74), Expect = 0.17
Identities = 26/107 (24%), Positives = 50/107 (46%), Gaps = 12/107 (11%)
Query: 104 LKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGV--CTQDGPLYVIVEFAPHGNLRDFL 161
LK+ M E+ +++ + +H N+I L V D ++++ ++A H +L +
Sbjct: 33 LKQIEGTGISMSACREIALLREL-KHPNVIALQKVFLSHSDRKVWLLFDYAEH-DLWHII 90
Query: 162 RKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
+ HR S + P+ L + S YQ+ +G+HYL + V
Sbjct: 91 KFHRASKANKKPMQ--------LPRSMVKSLLYQILDGIHYLHANWV 129
>gnl|CDD|173738 cd07835, STKc_CDK1_like, Catalytic domain of Cyclin-Dependent
protein Kinase 1-like Serine/Threonine Kinases.
Serine/Threonine Kinases (STKs), Cyclin-Dependent
protein Kinase 1 (CDK1)-like subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK1 subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. CDKs belong to a
large family of STKs that are regulated by their cognate
cyclins. Together, they are involved in the control of
cell-cycle progression, transcription, and neuronal
function. This subfamily is composed of CDK1 from higher
eukaryotes, plants, and yeasts, as well as CDK2 and
CDK3. CDK1 is also called Cell division control protein
2 (Cdc2) or p34 protein kinase, and is regulated by
cyclins A, B, and E. The CDK1/cyclin A complex controls
G2 phase entry and progression while the CDK1/cyclin B
complex is critical for G2 to M phase transition. CDK2
is regulated by cyclin E or cyclin A. Upon activation by
cyclin E, it phosphorylates the retinoblastoma (pRb)
protein which activates E2F mediated transcription and
allows cells to move into S phase. The CDK2/cyclin A
complex plays a role in regulating DNA replication.
Studies in knockout mice revealed that CDK1 can
compensate for the loss of the cdk2 gene as it can also
bind cyclin E and drive G1 to S phase transition. CDK3
is regulated by cyclin C and it phosphorylates pRB
specifically during the G0/G1 transition. This
phosphorylation is required for cells to exit G0
efficiently and enter the G1 phase.
Length = 283
Score = 32.3 bits (74), Expect = 0.18
Identities = 25/82 (30%), Positives = 36/82 (43%), Gaps = 18/82 (21%)
Query: 128 QHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEK 187
H NI+ LL V + LY++ EF L L+K+ SS + L
Sbjct: 56 NHPNIVRLLDVVHSENKLYLVFEF-----LDLDLKKYMDSS-PLTGLD-----------P 98
Query: 188 DLI-SFAYQVANGMHYLQSRKV 208
LI S+ YQ+ G+ Y S +V
Sbjct: 99 PLIKSYLYQLLQGIAYCHSHRV 120
>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 = 32.2 bits (74), Expect = 0.21
Identities = 25/133 (18%), Positives = 56/133 (42%), Gaps = 31/133 (23%)
Query: 78 AFGKV---ICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIIN 134
++G V I E VA+K++ + ++ +++ E+ ++K I+
Sbjct: 15 SYGSVYKAIHKETG--------QVVAIKVVP---VEEDLQEIIKEISILKQC-DSPYIVK 62
Query: 135 LLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAY 194
G ++ L++++E+ G++ D ++ LTE+++ + Y
Sbjct: 63 YYGSYFKNTDLWIVMEYCGAGSVSDIMK----------------ITNKTLTEEEIAAILY 106
Query: 195 QVANGMHYLQSRK 207
Q G+ YL S K
Sbjct: 107 QTLKGLEYLHSNK 119
>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 = 32.2 bits (73), Expect = 0.23
Identities = 32/122 (26%), Positives = 49/122 (40%), Gaps = 36/122 (29%)
Query: 99 VAVKMLKEGHSD--------AEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVE 150
V +K+L H D A +M VS HI++ + GVC + ++ E
Sbjct: 47 VVLKVLDPSHRDIALAFFETASLMSQVS----------HIHLAFVHGVCVRGSENIMVEE 96
Query: 151 FAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV-- 208
F HG L LRK + G V I+ A Q+A+ + YL+ + +
Sbjct: 97 FVEHGPLDVCLRKEK---------------GRVPVAWK-ITVAQQLASALSYLEDKNLVH 140
Query: 209 GN 210
GN
Sbjct: 141 GN 142
>gnl|CDD|143373 cd07868, STKc_CDK8, Catalytic domain of the Serine/Threonine
Kinase, Cyclin-Dependent protein Kinase 8.
Serine/Threonine Kinases (STKs), Cyclin-Dependent
protein Kinase 8 (CDK8) subfamily, catalytic (c) domain.
STKs catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The CDK8 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. CDK8
can act as a negative or positive regulator of
transcription, depending on the scenario. Together with
its regulator, cyclin C, it reversibly associates with
the multi-subunit core Mediator complex, a cofactor that
is involved in regulating RNA polymerase II (RNAP
II)-dependent transcription. CDK8 phosphorylates cyclin
H, a subunit of the general transcription factor TFIIH,
which results in the inhibition of TFIIH-dependent
phosphorylation of the C-terminal domain (CTD) of RNAP
II, facilitating the inhibition of transcription. It has
also been shown to promote transcription by a mechanism
that is likely to involve RNAP II phosphorylation. CDK8
also functions as a stimulus-specific positive
coregulator of p53 transcriptional responses.
Length = 317
Score = 32.0 bits (72), Expect = 0.24
Identities = 26/107 (24%), Positives = 51/107 (47%), Gaps = 12/107 (11%)
Query: 104 LKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGV--CTQDGPLYVIVEFAPHGNLRDFL 161
LK+ M E+ +++ + +H N+I+L V D ++++ ++A H +L +
Sbjct: 33 LKQIEGTGISMSACREIALLREL-KHPNVISLQKVFLSHADRKVWLLFDYAEH-DLWHII 90
Query: 162 RKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
+ HR S + P+ L + S YQ+ +G+HYL + V
Sbjct: 91 KFHRASKANKKPVQ--------LPRGMVKSLLYQILDGIHYLHANWV 129
>gnl|CDD|143377 cd07872, STKc_PCTAIRE2, Catalytic domain of the Serine/Threonine
Kinase, PCTAIRE-2 kinase. Serine/Threonine Kinases
(STKs), PCTAIRE-2 subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The PCTAIRE-2 subfamily is part of a larger superfamily
that includes the catalytic domains of other protein
STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. PCTAIRE-2 shares sequence
similarity with Cyclin-Dependent Kinases (CDKs), which
belong to a large family of STKs that are regulated by
their cognate cyclins. Together, CDKs and cyclins are
involved in the control of cell-cycle progression,
transcription, and neuronal function. PCTAIRE-2 is
specifically expressed in neurons in the central nervous
system, mainly in terminally differentiated neurons. It
associates with Trap (Tudor repeat associator with
PCTAIRE-2) and could play a role in regulating
mitochondrial function in neurons.
Length = 309
Score = 31.9 bits (72), Expect = 0.25
Identities = 25/110 (22%), Positives = 50/110 (45%), Gaps = 18/110 (16%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLR 158
VA+K ++ H + + E+ ++K + +H NI+ L + D L ++ E+ L
Sbjct: 34 VALKEIRLEHEEGAPCTAIREVSLLKDL-KHANIVTLHDIVHTDKSLTLVFEY-----LD 87
Query: 159 DFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
L+++ G N+++ ++ F YQ+ G+ Y RKV
Sbjct: 88 KDLKQYMDDCG------------NIMSMHNVKIFLYQILRGLAYCHRRKV 125
>gnl|CDD|132983 cd06652, STKc_MEKK2, Catalytic domain of the Protein
Serine/Threonine Kinase, MAP/ERK kinase kinase 2.
Serine/threonine kinases (STKs), MAP/ERK kinase kinase 2
(MEKK2) subfamily, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MEKK2 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. MEKK2 is a mitogen-activated protein kinase
(MAPK) kinase kinase (MAPKKK or MKKK or MAP3K), that
phosphorylates and activates the MAPK kinase MEK5 (or
MKK5), which in turn phosphorylates and activates
extracellular signal-regulated kinase 5 (ERK5). The ERK5
cascade plays roles in promoting cell proliferation,
differentiation, neuronal survival, and neuroprotection.
MEKK2 also activates ERK1/2, c-Jun N-terminal kinase
(JNK) and p38 through their respective MAPKKs MEK1/2,
JNK-activating kinase 2 (JNKK2), and MKK3/6. MEKK2 plays
roles in T cell receptor signaling, immune synapse
formation, cytokine gene expression, as well as in EGF
and FGF receptor signaling.
Length = 265
Score = 31.5 bits (71), Expect = 0.30
Identities = 32/139 (23%), Positives = 59/139 (42%), Gaps = 33/139 (23%)
Query: 78 AFGKV-ICAEANGILKQGIITTVAVKMLK----EGHSDAEMMDLVSEMEMMKMIGQHINI 132
AFG+V +C +A+ +AVK ++ + E+ L E++++K + H I
Sbjct: 14 AFGRVYLCYDAD------TGRELAVKQVQFDPESPETSKEVNALECEIQLLKNL-LHERI 66
Query: 133 INLLGVCTQDGP---LYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDL 189
+ G C +D L + +E P G+++D L+ + LTE
Sbjct: 67 VQYYG-CLRDPMERTLSIFMEHMPGGSIKDQLKSY-----------------GALTENVT 108
Query: 190 ISFAYQVANGMHYLQSRKV 208
+ Q+ G+ YL S +
Sbjct: 109 RKYTRQILEGVSYLHSNMI 127
>gnl|CDD|173766 cd08226, PK_STRAD_beta, Pseudokinase domain of STE20-related kinase
adapter protein beta. Protein Kinase family,
STE20-related kinase adapter protein (STRAD) beta
subfamily, pseudokinase domain. The STRAD-beta subfamily
is part of a larger superfamily that includes the
catalytic domains of serine/threonine kinases (STKs),
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. The pseudokinase domain shows similarity to
protein kinases but lacks crucial residues for catalytic
activity. STRAD forms a complex with the scaffolding
protein MO25, and the STK, LKB1, resulting in the
activation of the kinase. In the complex, LKB1
phosphorylates and activates adenosine
monophosphate-activated protein kinases (AMPKs), which
regulate cell energy metabolism and cell polarity. LKB1
is a tumor suppressor linked to the rare inherited
disease, Peutz-Jeghers syndrome, which is characterized
by a predisposition to benign polyps and
hyperpigmentation of the buccal mucosa. There are two
forms of STRAD, alpha and beta, that complex with LKB1
and MO25. STRAD-beta is also referred to as ALS2CR2
(Amyotrophic lateral sclerosis 2 chromosomal region
candidate gene 2 protein), since the human gene encoding
it is located within the juvenile ALS2 critical region
on chromosome 2q33-q34. It is not linked to the
development of ALS2.
Length = 328
Score = 31.5 bits (71), Expect = 0.38
Identities = 18/80 (22%), Positives = 35/80 (43%)
Query: 97 TTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGN 156
T V V++ + E + + ++ +H NI+ V T L+VI F +G+
Sbjct: 26 TLVTVRITDLENCTEEHLKALQNEVVLSHFFRHPNIMTSWTVFTTGSWLWVISPFMAYGS 85
Query: 157 LRDFLRKHRPSSGYESPLGS 176
L+ + P E+ +G+
Sbjct: 86 ANSLLKTYFPEGMSEALIGN 105
>gnl|CDD|132957 cd06626, STKc_MEKK4, Catalytic domain of the Protein
Serine/Threonine Kinase, MAP/ERK kinase kinase 4.
Serine/threonine kinases (STKs), MAP/ERK kinase kinase 4
(MEKK4) subfamily, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MEKK4 subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. MEKK4 is a mitogen-activated protein kinase
(MAPK) kinase kinase (MAPKKK or MKKK or MAP3K), that
phosphorylates and activates MAPK kinases (MAPKKs or
MKKs or MAP2Ks), which in turn phosphorylate and
activate MAPKs during signaling cascades that are
important in mediating cellular responses to
extracellular signals. MEKK4 activates the c-Jun
N-terminal kinase (JNK) and p38 MAPK signaling pathways
by directly activating their respective MAPKKs,
MKK4/MKK7 and MKK3/MKK6. JNK and p38 are collectively
known as stress-activated MAPKs, as they are activated
in response to a variety of environmental stresses and
pro-inflammatory cytokines. MEKK4 also plays roles in
the re-polarization of the actin cytoskeleton in
response to osmotic stress, in the proper closure of the
neural tube, in cardiovascular development, and in
immune responses.
Length = 264
Score = 31.2 bits (71), Expect = 0.40
Identities = 30/140 (21%), Positives = 60/140 (42%), Gaps = 31/140 (22%)
Query: 74 KIKC-AFGKVICA---EANGILKQGIITTVAVKMLKEGHSDAEMMD-LVSEMEMMKMIGQ 128
KI FGKV A + ++ AVK ++ +D + + + EM++++++ +
Sbjct: 7 KIGGGTFGKVYTAVNLDTGELM--------AVKEIRIQDNDPKTIKEIADEMKVLELL-K 57
Query: 129 HINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKD 188
H N++ GV +Y+ +E+ G L + L +G +L E
Sbjct: 58 HPNLVKYYGVEVHREKVYIFMEYCSGGTLEELLE-----------------HGRILDEHV 100
Query: 189 LISFAYQVANGMHYLQSRKV 208
+ + Q+ G+ YL S +
Sbjct: 101 IRVYTLQLLEGLAYLHSHGI 120
>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 = 31.1 bits (70), Expect = 0.44
Identities = 21/102 (20%), Positives = 44/102 (43%), Gaps = 18/102 (17%)
Query: 112 EMMDLVSEMEMMKMIG-----QHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRP 166
EMMD + + +K I H N+I L +D L +++E A G+L ++ +
Sbjct: 39 EMMDAKARQDCVKEIDLLKQLNHPNVIKYLDSFIEDNELNIVLELADAGDLSQMIKYFKK 98
Query: 167 SSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
++ E+ + + Q+ + + ++ SR+V
Sbjct: 99 QK-------------RLIPERTVWKYFVQLCSAVEHMHSRRV 127
>gnl|CDD|200567 cd10942, CE4_u11, Putative catalytic domain of uncharacterized
bacterial proteins from the carbohydrate esterase 4
superfamily. This family corresponds to a group of
uncharacterized bacterial proteins with high sequence
similarity to the catalytic domain of the six-stranded
barrel rhizobial NodB-like proteins, which remove
N-linked or O-linked acetyl groups from cell wall
polysaccharides and belong to the larger carbohydrate
esterase 4 (CE4) superfamily.
Length = 252
Score = 31.3 bits (71), Expect = 0.44
Identities = 27/115 (23%), Positives = 42/115 (36%), Gaps = 25/115 (21%)
Query: 104 LKEGHSDA------EMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNL 157
L GH E +S +E +I + ++I LG+ V F P G
Sbjct: 70 LAHGHEIGLHGWQHEPWAGLSPLEEDDLINRSLSIAERLGLAP--------VGFRPPGGA 121
Query: 158 R-----DFLRKHRPSSG--YESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQS 205
L KH G Y S G+ + + ++ FA+ +G +YL S
Sbjct: 122 LGAHTLALLAKH----GIRYVSLAGTGRSLATMPDGLAVLPFAWAAVDGFYYLDS 172
>gnl|CDD|143342 cd07837, STKc_CdkB_plant, Catalytic domain of the Serine/Threonine
Kinase, Plant B-type Cyclin-Dependent protein Kinase.
Serine/Threonine Kinases (STKs), Plant B-type
Cyclin-Dependent protein Kinase (CdkB) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CdkB subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. CDKs belong to a
large family of STKs that are regulated by their cognate
cyclins. Together, they are involved in the control of
cell-cycle progression, transcription, and neuronal
function. The plant-specific B-type CDKs are expressed
from the late S to the M phase of the cell cycle. They
are characterized by the cyclin binding motif
PPT[A/T]LRE. They play a role in controlling mitosis and
integrating developmental pathways, such as stomata and
leaf development. CdkB has been shown to associate with
both cyclin B, which controls G2/M transition, and
cyclin D, which acts as a mediator in linking
extracellular signals to the cell cycle.
Length = 295
Score = 31.3 bits (71), Expect = 0.48
Identities = 21/95 (22%), Positives = 40/95 (42%), Gaps = 18/95 (18%)
Query: 119 EMEMMKMIGQHINIINLLGV--CTQDGP---LYVIVEFAPHGNLRDFLRKHRPSSGYESP 173
E+ +++M+ + I I+ LL V + LY++ E+ +L+ F+ +
Sbjct: 50 EISLLQMLSESIYIVRLLDVEHVEEKNGKPSLYLVFEYL-DSDLKKFMDSNGRG------ 102
Query: 174 LGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
G L K + SF YQ+ G+ + V
Sbjct: 103 ------PGRPLPAKTIKSFMYQLLKGVAHCHKHGV 131
>gnl|CDD|173732 cd06628, STKc_MAPKKK_Byr2_like, Catalytic domain of fungal
Byr2-like MAP Kinase Kinase Kinases. Serine/threonine
kinases (STKs), mitogen-activated protein kinase (MAPK)
kinase kinase (MAPKKK) subfamily, fungal Byr2-like
proteins, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MAPKKK subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. Members of this group include the MAPKKKs
Schizosaccharomyces pombe Byr2, Saccharomyces cerevisiae
and Cryptococcus neoformans Ste11, and related proteins.
They contain an N-terminal SAM (sterile alpha-motif)
domain, which mediates protein-protein interaction, and
a C-terminal catalytic domain. MAPKKKs phosphorylate and
activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which
in turn phosphorylate and activate MAPKs during
signaling cascades that are important in mediating
cellular responses to extracellular signals. Fission
yeast Byr2 is regulated by Ras1. It responds to
pheromone signaling and controls mating through the MAPK
pathway. Budding yeast Ste11 functions in MAPK cascades
that regulate mating, high osmolarity glycerol, and
filamentous growth responses.
Length = 267
Score = 31.0 bits (70), Expect = 0.50
Identities = 24/99 (24%), Positives = 42/99 (42%), Gaps = 19/99 (19%)
Query: 111 AEMMD-LVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSG 169
M+D L E+ ++K + QH NI+ LG L + +E+ P G++ L
Sbjct: 47 RSMLDALAREIALLKEL-QHENIVQYLGSSLDADHLNIFLEYVPGGSVAALL-------- 97
Query: 170 YESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
N E + +F Q+ G++YL +R +
Sbjct: 98 ---------NNYGAFEETLVRNFVRQILKGLNYLHNRGI 127
>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 = 31.1 bits (70), Expect = 0.50
Identities = 18/94 (19%), Positives = 43/94 (45%), Gaps = 14/94 (14%)
Query: 115 DLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPL 174
D + E++++K + H N+I +D L +++E A G+L ++ +
Sbjct: 48 DCIKEIDLLKQL-NHPNVIKYYASFIEDNELNIVLELADAGDLSRMIKHFKKQK------ 100
Query: 175 GSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
++ EK + + Q+ + + ++ SR+V
Sbjct: 101 -------RLIPEKTVWKYFVQLCSALEHMHSRRV 127
>gnl|CDD|132984 cd06653, STKc_MEKK3_like_1, 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,
functionally uncharacterized subgroup 1. 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. The MEKK3-like 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 = 264
Score = 30.8 bits (69), Expect = 0.54
Identities = 26/103 (25%), Positives = 46/103 (44%), Gaps = 22/103 (21%)
Query: 109 SDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQD---GPLYVIVEFAPHGNLRDFLRKHR 165
+ E+ L E++++K + +H I+ G C +D L + VE+ P G+++D L+
Sbjct: 44 TSKEVNALECEIQLLKNL-RHDRIVQYYG-CLRDPEEKKLSIFVEYMPGGSIKDQLK--- 98
Query: 166 PSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
AY LTE + Q+ G+ YL S +
Sbjct: 99 -----------AY---GALTENVTRRYTRQILQGVSYLHSNMI 127
>gnl|CDD|173735 cd07831, STKc_MOK, Catalytic domain of the Serine/Threonine Kinase,
MAPK/MAK/MRK Overlapping Kinase. Serine/Threonine
Kinases (STKs), MAPK/MAK/MRK Overlapping Kinase (MOK)
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The MOK
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. MOK, also called Renal tumor antigen 1
(RAGE-1), is widely expressed and is enriched in testis,
kidney, lung, and brain. It is expressed in
approximately 50% of renal cell carcinomas (RCC) and is
a potential target for immunotherapy. MOK is stabilized
by its association with the HSP90 molecular chaperone.
It is induced by the transcription factor Cdx2 and may
be involved in regulating intestinal epithelial
development and differentiation.
Length = 282
Score = 30.7 bits (70), Expect = 0.60
Identities = 22/107 (20%), Positives = 48/107 (44%), Gaps = 19/107 (17%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVC--TQDGPLYVIVEFAPHGN 156
A+K +K+ E ++ + E++ ++ + H NI+ L+ V + G L ++ E N
Sbjct: 27 YAIKCMKKHFKSLEQVNNLREIQALRRLSPHPNILRLIEVLFDRKTGRLALVFELM-DMN 85
Query: 157 LRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYL 203
L + ++ + PL EK + S+ YQ+ + ++
Sbjct: 86 LYELIKGRK------RPLP----------EKRVKSYMYQLLKSLDHM 116
>gnl|CDD|173751 cd07860, STKc_CDK2_3, Catalytic domain of the Serine/Threonine
Kinases, Cyclin-Dependent protein Kinase 2 and 3.
Serine/Threonine Kinases (STKs), Cyclin-dependent
protein kinase 2 (CDK2) and CDK3 subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK2/3 subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. CDKs belong to a
large family of STKs that are regulated by their cognate
cyclins. Together, they are involved in the control of
cell-cycle progression, transcription, and neuronal
function. CDK2 is regulated by cyclin E or cyclin A.
Upon activation by cyclin E, it phosphorylates the
retinoblastoma (pRb) protein which activates E2F
mediated transcription and allows cells to move into S
phase. The CDK2/cyclin A complex plays a role in
regulating DNA replication. CDK2, together with CDK4,
also regulates embryonic cell proliferation. Despite
these important roles, mice deleted for the cdk2 gene
are viable and normal except for being sterile. This may
be due to compensation provided by CDK1 (also called
Cdc2), which can also bind cyclin E and drive the G1 to
S phase transition. CDK3 is regulated by cyclin C and it
phosphorylates pRB specifically during the G0/G1
transition. This phosphorylation is required for cells
to exit G0 efficiently and enter the G1 phase.
Length = 284
Score = 30.5 bits (69), Expect = 0.76
Identities = 30/109 (27%), Positives = 49/109 (44%), Gaps = 21/109 (19%)
Query: 104 LKEGHSDAEMMDLVS----EMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRD 159
LK+ D E + S E+ ++K + H NI+ LL V + LY++ EF H +L+
Sbjct: 30 LKKIRLDTETEGVPSTAIREISLLKEL-NHPNIVKLLDVIHTENKLYLVFEFL-HQDLKK 87
Query: 160 FLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
F+ P SG PL +Y +Q+ G+ + S +V
Sbjct: 88 FM-DASPLSGIPLPLIKSYL--------------FQLLQGLAFCHSHRV 121
>gnl|CDD|173737 cd07834, STKc_MAPK, Catalytic domain of the Serine/Threonine
Kinase, Mitogen-Activated Protein Kinase.
Serine/Threonine Kinases (STKs), Mitogen-Activated
Protein Kinase (MAPK) subfamily, catalytic (c) domain.
STKs catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The MAPK subfamily is part of a larger
superfamily that includes the catalytic domains of other
protein STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. MAPKs serve as important
mediators of cellular responses to extracellular
signals. They control critical cellular functions
including differentiation, proliferation, migration, and
apoptosis. They are also implicated in the pathogenesis
of many diseases including multiple types of cancer,
stroke, diabetes, and chronic inflammation. Typical MAPK
pathways involve a triple kinase core cascade comprising
of the MAPK, which is phosphorylated and activated by a
MAPK kinase (MAP2K or MKK), which itself is
phosphorylated and activated by a MAPK kinase kinase
(MAP3K or MKKK). Each cascade is activated either by a
small GTP-binding protein or by an adaptor protein,
which transmits the signal either directly to a MAP3K to
start the triple kinase core cascade or indirectly
through a mediator kinase, a MAP4K. There are three main
typical MAPK subfamilies: Extracellular signal-Regulated
Kinase (ERK), c-Jun N-terminal Kinase (JNK), and p38.
Some MAPKs are atypical in that they are not regulated
by MAP2Ks. These include MAPK4, MAPK6, NLK, and ERK7.
Length = 330
Score = 30.2 bits (69), Expect = 1.1
Identities = 22/95 (23%), Positives = 39/95 (41%), Gaps = 24/95 (25%)
Query: 119 EMEMMKMIGQHINIINLLGVCTQDGP-----LYVIVEFAPHGNLRDFLRKHRPSSGYESP 173
E+++++ + +H NII LL + P +Y++ E E+
Sbjct: 49 EIKLLRHL-RHENIIGLLDILRPPSPEDFNDVYIVTEL------------------METD 89
Query: 174 LGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
L + LT+ + F YQ+ G+ YL S V
Sbjct: 90 LHKVIKSPQPLTDDHIQYFLYQILRGLKYLHSANV 124
>gnl|CDD|173727 cd06613, STKc_MAP4K3_like, Catalytic domain of Mitogen-activated
protein kinase kinase kinase kinase-like Protein
Serine/Threonine Kinases. Serine/threonine kinases
(STKs), mitogen-activated protein kinase (MAPK) kinase
kinase kinase 3 (MAPKKKK3 or MAP4K3)-like subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MAP4K3-like
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. This subfamily includes MAP4K3, MAP4K1,
MAP4K2, MAP4K5, and related proteins. Vertebrate members
contain an N-terminal catalytic domain and a C-terminal
citron homology (CNH) regulatory domain, similar to
MAP4K4/6. MAP4Ks are involved in some MAPK signaling
pathways that are important in mediating cellular
responses to extracellular signals by activating a MAPK
kinase kinase (MAPKKK or MAP3K or MKKK). Each MAPK
cascade is activated either by a small GTP-binding
protein or by an adaptor protein, which transmits the
signal either directly to a MAP3K to start the triple
kinase core cascade or indirectly through a mediator
kinase, a MAP4K. MAP4K1, also called haematopoietic
progenitor kinase 1 (HPK1), is a hematopoietic-specific
STK involved in many cellular signaling cascades
including MAPK, antigen receptor, apoptosis, growth
factor, and cytokine signaling. It participates in the
regulation of T cell receptor signaling and T
cell-mediated immune responses. MAP4K2 was referred to
as germinal center (GC) kinase because of its preferred
location in GC B cells. MAP4K3 plays a role in the
nutrient-responsive pathway of mTOR (mammalian target of
rapamycin) signaling. It is required in the activation
of S6 kinase by amino acids and for the phosphorylation
of the mTOR-regulated inhibitor of eukaryotic initiation
factor 4E. MAP4K5, also called germinal center
kinase-related enzyme (GCKR), has been shown to activate
the MAPK c-Jun N-terminal kinase (JNK).
Length = 262
Score = 30.0 bits (68), Expect = 1.1
Identities = 24/111 (21%), Positives = 47/111 (42%), Gaps = 20/111 (18%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLR 158
VA+K++K D + + E+ M+K +H NI+ G + L++++E+ G+L+
Sbjct: 31 VAIKVIKLEPGD-DFEIIQQEISMLKEC-RHPNIVAYFGSYLRRDKLWIVMEYCGGGSLQ 88
Query: 159 DFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISF-AYQVANGMHYLQSRKV 208
D + R PL + I++ + G+ YL
Sbjct: 89 DIYQVTR------GPL-----------SELQIAYVCRETLKGLAYLHETGK 122
>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 = 29.7 bits (67), Expect = 1.3
Identities = 18/68 (26%), Positives = 35/68 (51%), Gaps = 4/68 (5%)
Query: 98 TVAVKMLKEGHSDAEMMDLVSEMEMMK--MIGQHINIINLLGVCTQDGP-LYVIVEFAPH 154
VA+K++ D ++ D+ E+ ++ Q NI G GP L++I+E+A
Sbjct: 28 VVALKIINLDTPDDDVSDIQREVALLSQLRQSQPPNITKYYG-SYLKGPRLWIIMEYAEG 86
Query: 155 GNLRDFLR 162
G++R ++
Sbjct: 87 GSVRTLMK 94
>gnl|CDD|165387 PHA03108, PHA03108, poly(A) polymerase small subunit; Provisional.
Length = 300
Score = 29.7 bits (67), Expect = 1.4
Identities = 33/114 (28%), Positives = 45/114 (39%), Gaps = 15/114 (13%)
Query: 151 FAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNV----LTEKDLISFAYQVANGMHYLQSR 206
+ PHGN + L+ PS E L S Y+ + +T+ D + + + M YL
Sbjct: 189 YIPHGN--EMLQPFAPSYSAEMRLLSIYSGEPIRLRCITKSDAVKYEKK----MFYLNK- 241
Query: 207 KVGNDAVRFIGFDLCI--LVFFHDSTLLKTTSTIASLILRNQKVSVLLDLIFVF 258
V N V + FD FFH +LKT KV L IF F
Sbjct: 242 IVRNKIV--LNFDYPNQEYDFFHMYFMLKTVYCNKEFSSTKAKVLFLQQSIFRF 293
>gnl|CDD|117702 pfam09147, DUF1933, Domain of unknown function (DUF1933). Members
of this family are predominantly found in carbapenam
synthetase, and are composed of two antiparallel
six-stranded beta-sheets that form a sandwich, flanked
on each side by two alpha-helices. Their exact function
has not, as yet, been determined.
Length = 201
Score = 29.5 bits (66), Expect = 1.5
Identities = 18/73 (24%), Positives = 29/73 (39%), Gaps = 8/73 (10%)
Query: 160 FLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQ------VANGMH--YLQSRKVGND 211
F + P Y G+AY G++ ++ L A V N YL S ++G+
Sbjct: 34 FTGRKTPVQKYRFERGTAYLIGSLYNKRLLRHLAGHFEGGVPVVNDAEILYLISTQLGSA 93
Query: 212 AVRFIGFDLCILV 224
A+ D C +
Sbjct: 94 ALGLAEGDFCFFI 106
>gnl|CDD|215061 PLN00113, PLN00113, leucine-rich repeat receptor-like protein
kinase; Provisional.
Length = 968
Score = 29.8 bits (67), Expect = 1.8
Identities = 18/62 (29%), Positives = 32/62 (51%), Gaps = 6/62 (9%)
Query: 101 VKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDF 160
VK + + +S +++M + QH NI+ L+G+C + Y+I E+ NL +
Sbjct: 720 VKEINDVNSIPSS--EIADMGKL----QHPNIVKLIGLCRSEKGAYLIHEYIEGKNLSEV 773
Query: 161 LR 162
LR
Sbjct: 774 LR 775
>gnl|CDD|165291 PHA02988, PHA02988, hypothetical protein; Provisional.
Length = 283
Score = 29.3 bits (66), Expect = 1.9
Identities = 17/75 (22%), Positives = 37/75 (49%), Gaps = 7/75 (9%)
Query: 97 TTVAVKMLKEGHSDAE-MMDL-VSEMEMMKMIGQHINIINLLG----VCTQDGPLYVIVE 150
V ++ K+ H + ++D+ +E++ ++ I NI+ + G + L +I+E
Sbjct: 44 KEVIIRTFKKFHKGHKVLIDITENEIKNLRRI-DSNNILKIYGFIIDIVDDLPRLSLILE 102
Query: 151 FAPHGNLRDFLRKHR 165
+ G LR+ L K +
Sbjct: 103 YCTRGYLREVLDKEK 117
>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 = 28.8 bits (64), Expect = 2.4
Identities = 35/148 (23%), Positives = 61/148 (41%), Gaps = 30/148 (20%)
Query: 67 INSQEYVKI-----KCAFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEME 121
+N +E+ +I AFGKV A+ + G++ V K S+ E+ D + E++
Sbjct: 1 LNPEEFWEIIGELGDGAFGKVYKAQNK---ETGVLAAAKVIDTK---SEEELEDYMVEID 54
Query: 122 MMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRD-FLRKHRPSSGYESPLGSAYTN 180
++ H NI+ LL + L++++EF G + L RP
Sbjct: 55 ILASC-DHPNIVKLLDAFYYENNLWILIEFCAGGAVDAVMLELERP-------------- 99
Query: 181 GNVLTEKDLISFAYQVANGMHYLQSRKV 208
LTE + Q ++YL K+
Sbjct: 100 ---LTEPQIRVVCKQTLEALNYLHENKI 124
>gnl|CDD|143378 cd07873, STKc_PCTAIRE1, Catalytic domain of the Serine/Threonine
Kinase, PCTAIRE-1 kinase. Serine/Threonine Kinases
(STKs), PCTAIRE-1 subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The PCTAIRE-1 subfamily is part of a larger superfamily
that includes the catalytic domains of other protein
STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. PCTAIRE-1 shares sequence
similarity with Cyclin-Dependent Kinases (CDKs), which
belong to a large family of STKs that are regulated by
their cognate cyclins. Together, CDKs and cyclins are
involved in the control of cell-cycle progression,
transcription, and neuronal function. PCTAIRE-1 is
expressed ubiquitously and is localized in the
cytoplasm. Its kinase activity is cell cycle dependent
and peaks at the S and G2 phases. PCTAIRE-1 is highly
expressed in the brain and may play a role in regulating
neurite outgrowth. It can also associate with Trap
(Tudor repeat associator with PCTAIRE-2), a
physiological partner of PCTAIRE-2; with p11, a small
dimeric protein with similarity to S100; and with 14-3-3
proteins, mediators of phosphorylation-dependent
interactions in many different proteins.
Length = 301
Score = 28.4 bits (63), Expect = 3.2
Identities = 23/110 (20%), Positives = 49/110 (44%), Gaps = 18/110 (16%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLR 158
VA+K ++ H + + E+ ++K + +H NI+ L + + L ++ E+ +L+
Sbjct: 34 VALKEIRLEHEEGAPCTAIREVSLLKDL-KHANIVTLHDIIHTEKSLTLVFEYLDK-DLK 91
Query: 159 DFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
+L GN + ++ F +Q+ G++Y RKV
Sbjct: 92 QYLDD----------------CGNSINMHNVKLFLFQLLRGLNYCHRRKV 125
>gnl|CDD|177649 PLN00009, PLN00009, cyclin-dependent kinase A; Provisional.
Length = 294
Score = 28.2 bits (63), Expect = 3.6
Identities = 25/93 (26%), Positives = 42/93 (45%), Gaps = 19/93 (20%)
Query: 117 VSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGS 176
+ E+ ++K + QH NI+ L V + LY++ E+ L L+KH SS
Sbjct: 49 IREISLLKEM-QHGNIVRLQDVVHSEKRLYLVFEY-----LDLDLKKHMDSS-------- 94
Query: 177 AYTNGNVLTEKDLI-SFAYQVANGMHYLQSRKV 208
+ LI ++ YQ+ G+ Y S +V
Sbjct: 95 ----PDFAKNPRLIKTYLYQILRGIAYCHSHRV 123
>gnl|CDD|143376 cd07871, STKc_PCTAIRE3, Catalytic domain of the Serine/Threonine
Kinase, PCTAIRE-3 kinase. Serine/Threonine Kinases
(STKs), PCTAIRE-3 subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The PCTAIRE-3 subfamily is part of a larger superfamily
that includes the catalytic domains of other protein
STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. PCTAIRE-3 shares sequence
similarity with Cyclin-Dependent Kinases (CDKs), which
belong to a large family of STKs that are regulated by
their cognate cyclins. Together, CDKs and cyclins are
involved in the control of cell-cycle progression,
transcription, and neuronal function. PCTAIRE-3 shows a
restricted pattern of expression and is present in
brain, kidney, and intestine. It is elevated in
Alzheimer's disease (AD) and has been shown to associate
with paired helical filaments (PHFs) and stimulate Tau
phosphorylation. As AD progresses, phosphorylated Tau
aggregates and forms PHFs, which leads to the formation
of neurofibrillary tangles (NFTs). In human glioma
cells, PCTAIRE-3 induces cell cycle arrest and cell
death.
Length = 288
Score = 28.4 bits (63), Expect = 3.7
Identities = 22/110 (20%), Positives = 50/110 (45%), Gaps = 18/110 (16%)
Query: 99 VAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLR 158
VA+K ++ H + + E+ ++K + +H NI+ L + + L ++ E+ +L+
Sbjct: 33 VALKEIRLEHEEGAPCTAIREVSLLKNL-KHANIVTLHDIIHTERCLTLVFEYL-DSDLK 90
Query: 159 DFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGMHYLQSRKV 208
+L GN+++ ++ F +Q+ G+ Y RK+
Sbjct: 91 QYLDN----------------CGNLMSMHNVKIFMFQLLRGLSYCHKRKI 124
>gnl|CDD|118101 pfam09565, RE_NgoFVII, NgoFVII restriction endonuclease. This
family includes the NgoFVII (recognises GCSGC but
cleavage site unknown) restriction endonuclease.
Length = 296
Score = 28.2 bits (63), Expect = 4.0
Identities = 12/46 (26%), Positives = 20/46 (43%), Gaps = 4/46 (8%)
Query: 143 GPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSA-YTNGNVLTEK 187
G +YV+ HG + F + +P +GSA + N T +
Sbjct: 71 GDVYVVPNPEYHGKIYIFHKDGKPVGAL---IGSANLSQINAFTTR 113
>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 = 28.0 bits (63), Expect = 4.4
Identities = 20/100 (20%), Positives = 44/100 (44%), Gaps = 16/100 (16%)
Query: 70 QEYVKIKC----AFGKV---ICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEM 122
+ + ++C +FG+V I N VA+K++ ++ E+ D+ E++
Sbjct: 1 ELFTLLECIGKGSFGEVYKAIDKRTN--------QVVAIKVIDLEEAEDEIEDIQQEIQF 52
Query: 123 MKMIGQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLR 162
+ + I G + L++I+E+ G+ D L+
Sbjct: 53 LSQC-RSPYITKYYGSFLKGSKLWIIMEYCGGGSCLDLLK 91
>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 = 27.9 bits (62), Expect = 4.6
Identities = 29/142 (20%), Positives = 60/142 (42%), Gaps = 24/142 (16%)
Query: 71 EYVKIK----CAFGKVICAEANGILKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMI 126
+YVK+K +FGK I ++ KQ +I + + + + E V+ + MK
Sbjct: 1 KYVKVKKIGEGSFGKAILVKSKEDGKQYVIKEINISKMSPKERE-ESRKEVAVLSNMK-- 57
Query: 127 GQHINIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTE 186
H NI+ ++G LY+++++ G+L + R G + E
Sbjct: 58 --HPNIVQYQESFEENGNLYIVMDYCEGGDLYKKINAQR---------------GVLFPE 100
Query: 187 KDLISFAYQVANGMHYLQSRKV 208
++ + Q+ + ++ RK+
Sbjct: 101 DQILDWFVQICLALKHVHDRKI 122
>gnl|CDD|241412 cd13258, PH_PLEKHJ1, Pleckstrin homology domain containing, family
J member 1 Pleckstrin homology (PH) domain. PLEKHJ1
(also called GNRPX2/Guanine nucleotide-releasing protein
x ). It contains a single PH domain. Very little
information is known about PLEKHJ1. PLEKHJ1 has been
shown to interact with IKBKG (inhibitor of kappa light
polypeptide gene enhancer in B-cells, kinase gamma) and
KRT33B (keratin 33B). PH domains have diverse functions,
but in general are involved in targeting proteins to the
appropriate cellular location or in the interaction with
a binding partner. They share little sequence
conservation, but all have a common fold, which is
electrostatically polarized. Less than 10% of PH domains
bind phosphoinositide phosphates (PIPs) with high
affinity and specificity. PH domains are distinguished
from other PIP-binding domains by their specific
high-affinity binding to PIPs with two vicinal phosphate
groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3
which results in targeting some PH domain proteins to
the plasma membrane. A few display strong specificity in
lipid binding. Any specificity is usually determined by
loop regions or insertions in the N-terminus of the
domain, which are not conserved across all PH domains.
PH domains are found in cellular signaling proteins such
as serine/threonine kinase, tyrosine kinases, regulators
of G-proteins, endocytotic GTPases, adaptors, as well as
cytoskeletal associated molecules and in lipid
associated enzymes.
Length = 144
Score = 27.5 bits (61), Expect = 5.2
Identities = 16/69 (23%), Positives = 25/69 (36%), Gaps = 5/69 (7%)
Query: 186 EKDLISFAYQVANGMHYLQSRKVGNDAVRFIGFDLCILV-----FFHDSTLLKTTSTIAS 240
EK+L+S + Q A L R +V LV +F + I +
Sbjct: 5 EKELLSLSRQPAEMEGELLMRGPKKGSVLKKRLFWVRLVVNFLFYFKTDEMFDELEPIGA 64
Query: 241 LILRNQKVS 249
L+L +V
Sbjct: 65 LLLERCRVV 73
>gnl|CDD|234664 PRK00143, mnmA, tRNA-specific 2-thiouridylase MnmA; Reviewed.
Length = 346
Score = 27.7 bits (63), Expect = 5.4
Identities = 6/16 (37%), Positives = 10/16 (62%)
Query: 151 FAPHGNLRDFLRKHRP 166
F + RDFL+++ P
Sbjct: 193 FIGERDYRDFLKRYLP 208
>gnl|CDD|237460 PRK13656, PRK13656, trans-2-enoyl-CoA reductase; Provisional.
Length = 398
Score = 27.9 bits (63), Expect = 6.5
Identities = 13/35 (37%), Positives = 18/35 (51%), Gaps = 6/35 (17%)
Query: 162 RKHRPSSG--YES---PLGSAYTNGNVLTEKDLIS 191
R P +G Y S P+G YT + T+KD+I
Sbjct: 144 RTD-PKTGEVYRSVLKPIGEPYTGKTLDTDKDVII 177
>gnl|CDD|173703 cd05612, STKc_PRKX_like, Catalytic domain of PRKX-like Protein
Serine/Threonine Kinases. Serine/Threonine Kinases
(STKs), cAMP-dependent protein kinase (PKA) subfamily,
PRKX-like kinases, catalytic (c) subunit. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The PKA
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. Members of this group include human PRKX (X
chromosome-encoded protein kinase), Drosophila DC2, and
similar proteins. PRKX is present in many tissues
including fetal and adult brain, kidney, and lung. The
PRKX gene is located in the Xp22.3 subregion and has a
homolog called PRKY on the Y chromosome. An abnormal
interchange between PRKX aand PRKY leads to the sex
reversal disorder of XX males and XY females. PRKX is
implicated in granulocyte/macrophage lineage
differentiation, renal cell epithelial migration, and
tubular morphogenesis in the developing kidney.
Length = 291
Score = 27.4 bits (61), Expect = 7.1
Identities = 20/75 (26%), Positives = 34/75 (45%), Gaps = 9/75 (12%)
Query: 91 LKQGIITTVAVKMLKEGHSDAEMMDLVSEMEMMKMIGQHINIINLLGVCTQDGPLYVIVE 150
LK I V +++ +E H + +E ++K + H II L LY+++E
Sbjct: 31 LKVMAIPEV-IRLKQEQH-------VHNEKRVLKEV-SHPFIIRLFWTEHDQRFLYMLME 81
Query: 151 FAPHGNLRDFLRKHR 165
+ P G L +LR
Sbjct: 82 YVPGGELFSYLRNSG 96
>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 = 27.2 bits (60), Expect = 8.0
Identities = 15/68 (22%), Positives = 31/68 (45%), Gaps = 15/68 (22%)
Query: 141 QDGPLYVIVEFAPHGNLRDFLRKHRPSSGYESPLGSAYTNGNVLTEKDLISFAYQVANGM 200
+DG LY+++ F G+L L++ + G +L E ++ + Q+A +
Sbjct: 71 EDGLLYIVMGFCEGGDLYHKLKEQK---------------GKLLPENQVVEWFVQIAMAL 115
Query: 201 HYLQSRKV 208
YL + +
Sbjct: 116 QYLHEKHI 123
>gnl|CDD|212511 cd09015, Ureohydrolase, Ureohydrolase superfamily includes
arginase, formiminoglutamase, agmatinase and
proclavaminate amidinohydrolase (PAH). This family,
also known as arginase-like amidino hydrolase family,
includes Mn-dependent enzymes: arginase (Arg, EC
3.5.3.1), formimidoylglutamase (HutG, EC 3.5.3.8 ),
agmatinase (SpeB, EC 3.5.3.11), guanidinobutyrase (Gbh,
EC=3.5.3.7), proclavaminate amidinohydrolase (PAH, EC
3.5.3.22) and related proteins. These enzymes catalyze
hydrolysis of amide bond. They are involved in control
of cellular levels of arginine and ornithine (both
involved in protein biosynthesis, and production of
creatine, polyamines, proline and nitric acid), in
histidine and arginine degradation, and in clavulanic
acid biosynthesis.
Length = 270
Score = 27.0 bits (60), Expect = 8.9
Identities = 14/44 (31%), Positives = 16/44 (36%), Gaps = 2/44 (4%)
Query: 127 GQH-INIINLLGVCTQDGPLYVIVEFAPHGNLRDFLRKHRPSSG 169
G H I I L V L VI H ++ R SSG
Sbjct: 87 GDHSIAIATLRAVARHHPDLGVI-NLDAHLDVNTPETDGRNSSG 129
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
0.323 0.136 0.401
Gapped
Lambda K H
0.267 0.0807 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 12,675,404
Number of extensions: 1180736
Number of successful extensions: 1229
Number of sequences better than 10.0: 1
Number of HSP's gapped: 1078
Number of HSP's successfully gapped: 187
Length of query: 258
Length of database: 10,937,602
Length adjustment: 95
Effective length of query: 163
Effective length of database: 6,723,972
Effective search space: 1096007436
Effective search space used: 1096007436
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.5 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (22.0 bits)
S2: 58 (26.0 bits)