RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy8884
(184 letters)
>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 = 67.6 bits (166), Expect = 3e-14
Identities = 32/86 (37%), Positives = 45/86 (52%), Gaps = 1/86 (1%)
Query: 86 ELLKEGNKVAIKNLKKSRIDLTRPLLL-ELKRLKDLHHDHLVKFIGACLDPPHCCLLTEY 144
K G KVAIK +KK LL E++ LK L+H ++VK G D H L+ EY
Sbjct: 13 RDKKTGKKVAIKIIKKEDSSSLLEELLREIEILKKLNHPNIVKLYGVFEDENHLYLVMEY 72
Query: 145 CPKGSLQDILENEQFKLEPMFKNSLM 170
C GSL+D+L+ + KL ++
Sbjct: 73 CEGGSLKDLLKENEGKLSEDEILRIL 98
Score = 61.9 bits (151), Expect = 4e-12
Identities = 21/62 (33%), Positives = 33/62 (53%)
Query: 16 FYKLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHDI 75
LK L+H ++VK G D H L+ EYC GSL+D+L+ + KL ++ I
Sbjct: 42 IEILKKLNHPNIVKLYGVFEDENHLYLVMEYCEGGSLKDLLKENEGKLSEDEILRILLQI 101
Query: 76 VK 77
++
Sbjct: 102 LE 103
>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 = 66.0 bits (162), Expect = 2e-13
Identities = 27/97 (27%), Positives = 45/97 (46%), Gaps = 11/97 (11%)
Query: 78 FNGYLKTKELLKEGNKVAIKNLKKS-----RIDLTRPLLLELKRLKDLHHDHLVKFIGAC 132
+ G LK K+ + +VA+K LK+ R D + E + +K L H ++V+ +G C
Sbjct: 12 YKGKLKGKD--GKTTEVAVKTLKEDASEEERKDFLK----EARVMKKLGHPNVVRLLGVC 65
Query: 133 LDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSL 169
+ L+ EY G L D L + K++L
Sbjct: 66 TEEEPLYLVLEYMEGGDLLDYLRKSRPVFPSPEKSTL 102
Score = 55.6 bits (135), Expect = 9e-10
Identities = 17/61 (27%), Positives = 30/61 (49%), Gaps = 1/61 (1%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSL-MHDIVK 77
+K L H ++V+ +G C + L+ EY G L D L + K++L + D++
Sbjct: 50 MKKLGHPNVVRLLGVCTEEEPLYLVLEYMEGGDLLDYLRKSRPVFPSPEKSTLSLKDLLS 109
Query: 78 F 78
F
Sbjct: 110 F 110
>gnl|CDD|197581 smart00219, TyrKc, Tyrosine kinase, catalytic domain.
Phosphotransferases. Tyrosine-specific kinase subfamily.
Length = 257
Score = 63.3 bits (155), Expect = 2e-12
Identities = 18/65 (27%), Positives = 31/65 (47%), Gaps = 1/65 (1%)
Query: 93 KVAIKNLKKSRIDLTRPLLL-ELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQ 151
+VA+K LK+ + L E + ++ L H ++VK +G C + ++ EY G L
Sbjct: 30 EVAVKTLKEDASEQQIEEFLREARIMRKLDHPNVVKLLGVCTEEEPLYIVMEYMEGGDLL 89
Query: 152 DILEN 156
L
Sbjct: 90 SYLRK 94
Score = 51.4 bits (124), Expect = 3e-08
Identities = 11/40 (27%), Positives = 19/40 (47%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILEN 58
++ L H ++VK +G C + ++ EY G L L
Sbjct: 55 MRKLDHPNVVKLLGVCTEEEPLYIVMEYMEGGDLLSYLRK 94
>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 = 63.0 bits (154), Expect = 2e-12
Identities = 20/65 (30%), Positives = 33/65 (50%), Gaps = 1/65 (1%)
Query: 93 KVAIKNLKKSRIDLTRPLLL-ELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQ 151
+VA+K LK+ + L E + ++ L H ++VK +G C + ++ EY P G L
Sbjct: 30 EVAVKTLKEDASEQQIEEFLREARIMRKLDHPNIVKLLGVCTEEEPLMIVMEYMPGGDLL 89
Query: 152 DILEN 156
D L
Sbjct: 90 DYLRK 94
Score = 51.4 bits (124), Expect = 4e-08
Identities = 13/40 (32%), Positives = 21/40 (52%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILEN 58
++ L H ++VK +G C + ++ EY P G L D L
Sbjct: 55 MRKLDHPNIVKLLGVCTEEEPLMIVMEYMPGGDLLDYLRK 94
>gnl|CDD|219530 pfam07714, Pkinase_Tyr, Protein tyrosine kinase.
Length = 258
Score = 62.9 bits (154), Expect = 3e-12
Identities = 28/85 (32%), Positives = 39/85 (45%), Gaps = 2/85 (2%)
Query: 78 FNGYLKTKELLKEGNKVAIKNLK-KSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPP 136
+ G LK E KVA+K LK + + L E +K L H ++V+ +G C
Sbjct: 16 YKGTLKGDGEGTET-KVAVKTLKEGASEEEREEFLEEASIMKKLSHPNIVRLLGVCTQGE 74
Query: 137 HCCLLTEYCPKGSLQDILENEQFKL 161
++TEY P G L D L KL
Sbjct: 75 PLYIVTEYMPGGDLLDFLRKHGEKL 99
Score = 53.3 bits (129), Expect = 7e-09
Identities = 17/60 (28%), Positives = 28/60 (46%), Gaps = 7/60 (11%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHDIVKF 78
+K L H ++V+ +G C ++TEY P G L D L KL + D+++
Sbjct: 55 MKKLSHPNIVRLLGVCTQGEPLYIVTEYMPGGDLLDFLRKHGEKLT-------LKDLLQM 107
>gnl|CDD|214567 smart00220, S_TKc, Serine/Threonine protein kinases, catalytic
domain. Phosphotransferases. Serine or
threonine-specific kinase subfamily.
Length = 254
Score = 61.8 bits (151), Expect = 6e-12
Identities = 27/72 (37%), Positives = 37/72 (51%), Gaps = 1/72 (1%)
Query: 89 KEGNKVAIKNLKKSRIDLTRPLLL-ELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPK 147
K G VAIK +KK +I R +L E+K LK L H ++V+ D L+ EYC
Sbjct: 22 KTGKLVAIKVIKKKKIKKDRERILREIKILKKLKHPNIVRLYDVFEDEDKLYLVMEYCEG 81
Query: 148 GSLQDILENEQF 159
G L D+L+
Sbjct: 82 GDLFDLLKKRGR 93
Score = 49.5 bits (119), Expect = 2e-07
Identities = 16/59 (27%), Positives = 25/59 (42%), Gaps = 1/59 (1%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHDIVK 77
LK L H ++V+ D L+ EYC G L D+L+ +L + I+
Sbjct: 51 LKKLKHPNIVRLYDVFEDEDKLYLVMEYCEGGDLFDLLKKRG-RLSEDEARFYLRQILS 108
>gnl|CDD|215690 pfam00069, Pkinase, Protein kinase domain.
Length = 260
Score = 61.9 bits (151), Expect = 7e-12
Identities = 24/72 (33%), Positives = 33/72 (45%), Gaps = 2/72 (2%)
Query: 88 LKEGNKVAIKNLKKSRID--LTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYC 145
G VA+K LKK + E++ L+ L H ++V+ I A D H L+ EYC
Sbjct: 21 KGTGKIVAVKILKKRSEKSKKDQTARREIRILRRLSHPNIVRLIDAFEDKDHLYLVMEYC 80
Query: 146 PKGSLQDILENE 157
G L D L
Sbjct: 81 EGGDLFDYLSRG 92
Score = 48.0 bits (115), Expect = 5e-07
Identities = 16/41 (39%), Positives = 21/41 (51%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENE 59
L+ L H ++V+ I A D H L+ EYC G L D L
Sbjct: 52 LRRLSHPNIVRLIDAFEDKDHLYLVMEYCEGGDLFDYLSRG 92
>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 = 55.1 bits (133), Expect = 1e-09
Identities = 24/65 (36%), Positives = 31/65 (47%), Gaps = 1/65 (1%)
Query: 90 EGNKVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGS 149
G KVA+K LK L E + L H +LV+ +G L ++TEY KGS
Sbjct: 28 RGQKVAVKCLKDDSTAAQA-FLAEASVMTTLRHPNLVQLLGVVLQGNPLYIVTEYMAKGS 86
Query: 150 LQDIL 154
L D L
Sbjct: 87 LVDYL 91
Score = 41.6 bits (98), Expect = 8e-05
Identities = 15/35 (42%), Positives = 20/35 (57%)
Query: 22 LHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
L H +LV+ +G L ++TEY KGSL D L
Sbjct: 57 LRHPNLVQLLGVVLQGNPLYIVTEYMAKGSLVDYL 91
>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 = 52.5 bits (126), Expect = 1e-08
Identities = 27/74 (36%), Positives = 42/74 (56%), Gaps = 2/74 (2%)
Query: 91 GNKVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDP--PHCCLLTEYCPKG 148
G VA+K L+ S + R E++ LK L HD++VK+ G C + L+ EY P G
Sbjct: 33 GEVVAVKKLQHSTAEHLRDFEREIEILKSLQHDNIVKYKGVCYSAGRRNLRLVMEYLPYG 92
Query: 149 SLQDILENEQFKLE 162
SL+D L+ + +L+
Sbjct: 93 SLRDYLQKHRERLD 106
Score = 42.8 bits (101), Expect = 3e-05
Identities = 19/48 (39%), Positives = 29/48 (60%), Gaps = 2/48 (4%)
Query: 19 LKDLHHDHLVKFIGACLDP--PHCCLLTEYCPKGSLQDILENEQFKLE 64
LK L HD++VK+ G C + L+ EY P GSL+D L+ + +L+
Sbjct: 59 LKSLQHDNIVKYKGVCYSAGRRNLRLVMEYLPYGSLRDYLQKHRERLD 106
>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 = 50.7 bits (122), Expect = 5e-08
Identities = 21/68 (30%), Positives = 40/68 (58%)
Query: 89 KEGNKVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKG 148
+ G +VAIK +K + ++ E++ LK H ++VK+ G+ L ++ E+C G
Sbjct: 23 RTGKEVAIKVIKLESKEKKEKIINEIQILKKCKHPNIVKYYGSYLKKDELWIVMEFCSGG 82
Query: 149 SLQDILEN 156
SL+D+L++
Sbjct: 83 SLKDLLKS 90
Score = 37.2 bits (87), Expect = 0.003
Identities = 14/40 (35%), Positives = 25/40 (62%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILEN 58
LK H ++VK+ G+ L ++ E+C GSL+D+L++
Sbjct: 51 LKKCKHPNIVKYYGSYLKKDELWIVMEFCSGGSLKDLLKS 90
>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 = 50.2 bits (121), Expect = 8e-08
Identities = 18/70 (25%), Positives = 31/70 (44%), Gaps = 4/70 (5%)
Query: 91 GNKVAIK--NLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPP--HCCLLTEYCP 146
G +A+K L + L E++ L L H ++V++ G+ D + EY
Sbjct: 25 GELMAVKSVELSGDSEEELEALEREIRILSSLQHPNIVRYYGSERDEEKNTLNIFLEYVS 84
Query: 147 KGSLQDILEN 156
GSL +L+
Sbjct: 85 GGSLSSLLKK 94
Score = 42.5 bits (101), Expect = 4e-05
Identities = 12/42 (28%), Positives = 20/42 (47%), Gaps = 2/42 (4%)
Query: 19 LKDLHHDHLVKFIGACLDPP--HCCLLTEYCPKGSLQDILEN 58
L L H ++V++ G+ D + EY GSL +L+
Sbjct: 53 LSSLQHPNIVRYYGSERDEEKNTLNIFLEYVSGGSLSSLLKK 94
>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 = 48.9 bits (117), Expect = 2e-07
Identities = 27/80 (33%), Positives = 43/80 (53%), Gaps = 11/80 (13%)
Query: 89 KEGNKVAIKNLKKS-----RIDLTRPLLLELKRLKDLHHDHLVKFIGACLDP--PHCCLL 141
G +VA+K+L S R D R E++ L+ L H+++VK+ G C P L+
Sbjct: 31 NTGEQVAVKSLNHSGEEQHRSDFER----EIEILRTLDHENIVKYKGVCEKPGGRSLRLI 86
Query: 142 TEYCPKGSLQDILENEQFKL 161
EY P GSL+D L+ + ++
Sbjct: 87 MEYLPSGSLRDYLQRHRDQI 106
Score = 42.0 bits (99), Expect = 6e-05
Identities = 17/47 (36%), Positives = 28/47 (59%), Gaps = 2/47 (4%)
Query: 19 LKDLHHDHLVKFIGACLDP--PHCCLLTEYCPKGSLQDILENEQFKL 63
L+ L H+++VK+ G C P L+ EY P GSL+D L+ + ++
Sbjct: 60 LRTLDHENIVKYKGVCEKPGGRSLRLIMEYLPSGSLRDYLQRHRDQI 106
>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 = 47.2 bits (113), Expect = 9e-07
Identities = 22/71 (30%), Positives = 40/71 (56%), Gaps = 2/71 (2%)
Query: 88 LKEGNKVAIKNLKKSRIDLT--RPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYC 145
L+ G+ VAIK + +I + ++ E+ LK+L H ++VK+IG+ ++ EY
Sbjct: 22 LETGDFVAIKQISLEKIKEEALKSIMQEIDLLKNLKHPNIVKYIGSIETSDSLYIILEYA 81
Query: 146 PKGSLQDILEN 156
GSL+ I++
Sbjct: 82 ENGSLRQIIKK 92
Score = 39.5 bits (93), Expect = 4e-04
Identities = 14/40 (35%), Positives = 24/40 (60%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILEN 58
LK+L H ++VK+IG+ ++ EY GSL+ I++
Sbjct: 53 LKNLKHPNIVKYIGSIETSDSLYIILEYAENGSLRQIIKK 92
>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 = 47.1 bits (112), Expect = 9e-07
Identities = 23/68 (33%), Positives = 39/68 (57%), Gaps = 3/68 (4%)
Query: 100 KKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQF 159
K+S +D L E+ LK+L H+++V+++G+ LD H + EY P GS+ +L N
Sbjct: 46 KRSMLD---ALAREIALLKELQHENIVQYLGSSLDADHLNIFLEYVPGGSVAALLNNYGA 102
Query: 160 KLEPMFKN 167
E + +N
Sbjct: 103 FEETLVRN 110
Score = 46.0 bits (109), Expect = 2e-06
Identities = 22/70 (31%), Positives = 40/70 (57%), Gaps = 1/70 (1%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHDIVKF 78
LK+L H+++V+++G+ LD H + EY P GS+ +L N E + +N + I+K
Sbjct: 60 LKELQHENIVQYLGSSLDADHLNIFLEYVPGGSVAALLNNYGAFEETLVRN-FVRQILKG 118
Query: 79 NGYLKTKELL 88
YL + ++
Sbjct: 119 LNYLHNRGII 128
>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 = 46.2 bits (110), Expect = 2e-06
Identities = 24/65 (36%), Positives = 34/65 (52%), Gaps = 1/65 (1%)
Query: 93 KVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQD 152
KVA+K LK + L E + +K L HD LV+ C + ++TEY KGSL D
Sbjct: 32 KVAVKTLKPGTMSPE-AFLQEAQIMKKLRHDKLVQLYAVCSEEEPIYIVTEYMSKGSLLD 90
Query: 153 ILENE 157
L++
Sbjct: 91 FLKSG 95
Score = 38.5 bits (90), Expect = 8e-04
Identities = 19/51 (37%), Positives = 27/51 (52%), Gaps = 4/51 (7%)
Query: 13 PTAFYK----LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENE 59
P AF + +K L HD LV+ C + ++TEY KGSL D L++
Sbjct: 45 PEAFLQEAQIMKKLRHDKLVQLYAVCSEEEPIYIVTEYMSKGSLLDFLKSG 95
>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 = 44.8 bits (106), Expect = 6e-06
Identities = 21/66 (31%), Positives = 36/66 (54%), Gaps = 1/66 (1%)
Query: 89 KEGNKVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKG 148
K VA+K LK+ +++ L E +K++ H +LV+ +G C P ++TE+ G
Sbjct: 29 KYSLTVAVKTLKEDTMEV-EEFLKEAAVMKEIKHPNLVQLLGVCTREPPFYIITEFMTYG 87
Query: 149 SLQDIL 154
+L D L
Sbjct: 88 NLLDYL 93
Score = 36.0 bits (83), Expect = 0.005
Identities = 13/38 (34%), Positives = 23/38 (60%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
+K++ H +LV+ +G C P ++TE+ G+L D L
Sbjct: 56 MKEIKHPNLVQLLGVCTREPPFYIITEFMTYGNLLDYL 93
>gnl|CDD|173631 cd05045, PTKc_RET, Catalytic domain of the Protein Tyrosine Kinase,
REarranged during Transfection protein. Protein
Tyrosine Kinase (PTK) family; RET (REarranged during
Transfection) protein; catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. RET is a
receptor tyr kinase (RTK) containing an extracellular
region with four cadherin-like repeats, a
calcium-binding site, and a cysteine-rich domain, a
transmembrane segment, and an intracellular catalytic
domain. It is part of a multisubunit complex that binds
glial-derived neurotropic factor (GDNF) family ligands
(GFLs) including GDNF, neurturin, artemin, and
persephin. GFLs bind RET along with four GPI-anchored
coreceptors, bringing two RET molecules together,
leading to autophosphorylation, activation, and
intracellular signaling. RET is essential for the
development of the sympathetic, parasympathetic and
enteric nervous systems, and the kidney. RET disruption
by germline mutations causes diseases in humans
including congenital aganglionosis of the
gastrointestinal tract (Hirschsprung's disease) and
three related inherited cancers: multiple endocrine
neoplasia type 2A (MEN2A), MEN2B, and familial medullary
thyroid carcinoma (FMTC).
Length = 290
Score = 44.6 bits (105), Expect = 7e-06
Identities = 31/81 (38%), Positives = 43/81 (53%), Gaps = 4/81 (4%)
Query: 94 VAIKNLKK--SRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQ 151
VA+K LK+ S +L R LL E LK ++H H++K GAC L+ EY GSL+
Sbjct: 33 VAVKMLKENASSSEL-RDLLSEFNLLKQVNHPHVIKLYGACSQDGPLLLIVEYAKYGSLR 91
Query: 152 DILENEQFKLEPMFKNSLMNK 172
L E K+ P + S N+
Sbjct: 92 SFLR-ESRKVGPSYLGSDGNR 111
Score = 34.9 bits (80), Expect = 0.013
Identities = 20/55 (36%), Positives = 28/55 (50%), Gaps = 1/55 (1%)
Query: 16 FYKLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNS 70
F LK ++H H++K GAC L+ EY GSL+ L E K+ P + S
Sbjct: 54 FNLLKQVNHPHVIKLYGACSQDGPLLLIVEYAKYGSLRSFLR-ESRKVGPSYLGS 107
>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 = 44.5 bits (106), Expect = 9e-06
Identities = 23/77 (29%), Positives = 39/77 (50%), Gaps = 6/77 (7%)
Query: 91 GNKVAIK--NLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKG 148
G +VAIK L+K +L ++ E+ +KD H ++V + + L ++ EY G
Sbjct: 44 GKEVAIKKMRLRKQNKEL---IINEILIMKDCKHPNIVDYYDSYLVGDELWVVMEYMDGG 100
Query: 149 SLQDILENEQFKL-EPM 164
SL DI+ ++ EP
Sbjct: 101 SLTDIITQNFVRMNEPQ 117
Score = 34.9 bits (81), Expect = 0.013
Identities = 14/49 (28%), Positives = 24/49 (48%), Gaps = 1/49 (2%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKL-EPM 66
+KD H ++V + + L ++ EY GSL DI+ ++ EP
Sbjct: 69 MKDCKHPNIVDYYDSYLVGDELWVVMEYMDGGSLTDIITQNFVRMNEPQ 117
>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 = 43.5 bits (103), Expect = 2e-05
Identities = 26/84 (30%), Positives = 38/84 (45%), Gaps = 4/84 (4%)
Query: 78 FNGYLKTKELLKEGN--KVAIKNLKKSRID-LTRPLLLELKRLKDLHHDHLVKFIGACLD 134
F +K L+K G +VA+K LK+ I + L E + L H +V+ IG C
Sbjct: 8 FGSVVKGVYLMKSGKEVEVAVKTLKQEHIAAGKKEFLREASVMAQLDHPCIVRLIGVCKG 67
Query: 135 PPHCCLLTEYCPKGSLQDILENEQ 158
P L+ E P G L L+ +
Sbjct: 68 EP-LMLVMELAPLGPLLKYLKKRR 90
Score = 31.9 bits (73), Expect = 0.15
Identities = 13/39 (33%), Positives = 18/39 (46%), Gaps = 1/39 (2%)
Query: 22 LHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQ 60
L H +V+ IG C P L+ E P G L L+ +
Sbjct: 53 LDHPCIVRLIGVCKGEP-LMLVMELAPLGPLLKYLKKRR 90
>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 = 42.5 bits (101), Expect = 4e-05
Identities = 17/78 (21%), Positives = 36/78 (46%), Gaps = 2/78 (2%)
Query: 89 KEGNKVAIK--NLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCP 146
+G +K +L L E+K LK L+H +++K+ + + C++ EY
Sbjct: 23 SDGKLYVLKEIDLSNMSEKEREDALNEVKILKKLNHPNIIKYYESFEEKGKLCIVMEYAD 82
Query: 147 KGSLQDILENEQFKLEPM 164
G L ++ ++ + +P
Sbjct: 83 GGDLSQKIKKQKKEGKPF 100
Score = 34.4 bits (80), Expect = 0.019
Identities = 11/48 (22%), Positives = 26/48 (54%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPM 66
LK L+H +++K+ + + C++ EY G L ++ ++ + +P
Sbjct: 53 LKKLNHPNIIKYYESFEEKGKLCIVMEYADGGDLSQKIKKQKKEGKPF 100
>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 = 42.4 bits (100), Expect = 4e-05
Identities = 19/54 (35%), Positives = 27/54 (50%), Gaps = 2/54 (3%)
Query: 105 DLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCL--LTEYCPKGSLQDILEN 156
DL + +L EL+ K ++VK+ GA LD + EYC GSL I +
Sbjct: 41 DLQKQILRELEINKSCKSPYIVKYYGAFLDESSSSIGIAMEYCEGGSLDSIYKK 94
Score = 36.6 bits (85), Expect = 0.003
Identities = 16/56 (28%), Positives = 24/56 (42%), Gaps = 4/56 (7%)
Query: 5 DVGRQVFVPTAFYKLKDLHHDHLVKFIGACLDPPHCCL--LTEYCPKGSLQDILEN 58
D+ +Q+ K ++VK+ GA LD + EYC GSL I +
Sbjct: 41 DLQKQILRELEI--NKSCKSPYIVKYYGAFLDESSSSIGIAMEYCEGGSLDSIYKK 94
>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 = 42.0 bits (99), Expect = 5e-05
Identities = 19/70 (27%), Positives = 33/70 (47%), Gaps = 2/70 (2%)
Query: 94 VAIKNLKK-SRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQD 152
VA+K K + + L E ++ H H+VK IG + P ++ E P G L+
Sbjct: 37 VAVKTCKNCTSPSVREKFLQEAYIMRQFDHPHIVKLIGVITENP-VWIVMELAPLGELRS 95
Query: 153 ILENEQFKLE 162
L+ ++ L+
Sbjct: 96 YLQVNKYSLD 105
Score = 39.3 bits (92), Expect = 4e-04
Identities = 17/57 (29%), Positives = 30/57 (52%), Gaps = 2/57 (3%)
Query: 8 RQVFVPTAFYKLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLE 64
R+ F+ A Y ++ H H+VK IG + P ++ E P G L+ L+ ++ L+
Sbjct: 51 REKFLQEA-YIMRQFDHPHIVKLIGVITENP-VWIVMELAPLGELRSYLQVNKYSLD 105
>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 = 41.9 bits (98), Expect = 6e-05
Identities = 21/61 (34%), Positives = 30/61 (49%)
Query: 94 VAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDI 153
VA+K LK + + E + L +L H+H+VKF G C D ++ EY G L
Sbjct: 38 VAVKALKDPTLAARKDFQREAELLTNLQHEHIVKFYGVCGDGDPLIMVFEYMKHGDLNKF 97
Query: 154 L 154
L
Sbjct: 98 L 98
Score = 35.0 bits (80), Expect = 0.013
Identities = 15/38 (39%), Positives = 20/38 (52%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
L +L H+H+VKF G C D ++ EY G L L
Sbjct: 61 LTNLQHEHIVKFYGVCGDGDPLIMVFEYMKHGDLNKFL 98
>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 = 41.3 bits (97), Expect = 1e-04
Identities = 27/88 (30%), Positives = 42/88 (47%), Gaps = 2/88 (2%)
Query: 87 LLKEGNKVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCP 146
L K +VAIK LK + + E++ LK L H HL+ C ++TE
Sbjct: 26 LWKNRVRVAIKILKSDDLLKQQDFQKEVQALKRLRHKHLISLFAVCSVGEPVYIITELME 85
Query: 147 KGSLQDILENEQFKLEPMFKNSLMNKAA 174
KGSL L + + ++ P+ SL++ A
Sbjct: 86 KGSLLAFLRSPEGQVLPV--ASLIDMAC 111
Score = 29.7 bits (67), Expect = 0.69
Identities = 15/48 (31%), Positives = 23/48 (47%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPM 66
LK L H HL+ C ++TE KGSL L + + ++ P+
Sbjct: 56 LKRLRHKHLISLFAVCSVGEPVYIITELMEKGSLLAFLRSPEGQVLPV 103
>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 = 41.2 bits (97), Expect = 1e-04
Identities = 20/68 (29%), Positives = 31/68 (45%), Gaps = 1/68 (1%)
Query: 94 VAIKNLKKSRIDLTR-PLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQD 152
VA+K L+ D R L E+K L L ++ + +G C P C++ EY G L
Sbjct: 49 VAVKVLRPDASDNAREDFLKEVKILSRLSDPNIARLLGVCTVDPPLCMIMEYMENGDLNQ 108
Query: 153 ILENEQFK 160
L+ +
Sbjct: 109 FLQKHVAE 116
Score = 33.5 bits (77), Expect = 0.039
Identities = 13/52 (25%), Positives = 21/52 (40%), Gaps = 4/52 (7%)
Query: 15 AFYK----LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFK 62
F K L L ++ + +G C P C++ EY G L L+ +
Sbjct: 65 DFLKEVKILSRLSDPNIARLLGVCTVDPPLCMIMEYMENGDLNQFLQKHVAE 116
>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 = 41.0 bits (96), Expect = 1e-04
Identities = 29/76 (38%), Positives = 39/76 (51%), Gaps = 4/76 (5%)
Query: 87 LLKEGN--KVAIKNLKKS-RIDLTRPLLLELKRLKDL-HHDHLVKFIGACLDPPHCCLLT 142
L KE N +VA+K LK S D L+ ELK L L H ++V +GAC ++T
Sbjct: 62 LGKEDNVLRVAVKMLKASAHTDEREALMSELKILSHLGQHKNIVNLLGACTHGGPVLVIT 121
Query: 143 EYCPKGSLQDILENEQ 158
EYC G L + L +
Sbjct: 122 EYCCYGDLLNFLRKKA 137
Score = 30.2 bits (68), Expect = 0.59
Identities = 12/38 (31%), Positives = 19/38 (50%)
Query: 23 HHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQ 60
H ++V +GAC ++TEYC G L + L +
Sbjct: 100 QHKNIVNLLGACTHGGPVLVITEYCCYGDLLNFLRKKA 137
>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 = 40.7 bits (96), Expect = 2e-04
Identities = 20/67 (29%), Positives = 30/67 (44%), Gaps = 1/67 (1%)
Query: 89 KEGNKVAIKNLK-KSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPK 147
G A+K + + + LL ELK L+ ++VK GA ++ EY
Sbjct: 24 PTGKIYALKKIHVDGDEEFRKQLLRELKTLRSCESPYVVKCYGAFYKEGEISIVLEYMDG 83
Query: 148 GSLQDIL 154
GSL D+L
Sbjct: 84 GSLADLL 90
Score = 31.0 bits (71), Expect = 0.27
Identities = 14/41 (34%), Positives = 19/41 (46%), Gaps = 3/41 (7%)
Query: 19 LKDLH---HDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
LK L ++VK GA ++ EY GSL D+L
Sbjct: 50 LKTLRSCESPYVVKCYGAFYKEGEISIVLEYMDGGSLADLL 90
>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 = 40.5 bits (95), Expect = 2e-04
Identities = 22/78 (28%), Positives = 34/78 (43%), Gaps = 1/78 (1%)
Query: 78 FNGYLKTKELLKEGNKVAIKNLKKS-RIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPP 136
+ G L VAIK LK++ + + E + + DL H ++V +G C
Sbjct: 22 YKGELTGPNERLSATSVAIKTLKENAEPKVQQEFRQEAELMSDLQHPNIVCLLGVCTKEQ 81
Query: 137 HCCLLTEYCPKGSLQDIL 154
C+L EY G L + L
Sbjct: 82 PTCMLFEYLAHGDLHEFL 99
Score = 34.4 bits (79), Expect = 0.025
Identities = 13/36 (36%), Positives = 18/36 (50%)
Query: 21 DLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
DL H ++V +G C C+L EY G L + L
Sbjct: 64 DLQHPNIVCLLGVCTKEQPTCMLFEYLAHGDLHEFL 99
>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 = 40.5 bits (95), Expect = 2e-04
Identities = 23/64 (35%), Positives = 35/64 (54%), Gaps = 2/64 (3%)
Query: 93 KVAIKNLK-KSRIDLTRPLLLELKRLKDL-HHDHLVKFIGACLDPPHCCLLTEYCPKGSL 150
KVA+K LK + L+ ELK + L +H+++V +GAC ++TEYC G L
Sbjct: 67 KVAVKMLKPTAHSSEREALMSELKIMSHLGNHENIVNLLGACTIGGPILVITEYCCYGDL 126
Query: 151 QDIL 154
+ L
Sbjct: 127 LNFL 130
Score = 27.4 bits (61), Expect = 4.1
Identities = 12/33 (36%), Positives = 19/33 (57%)
Query: 24 HDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
H+++V +GAC ++TEYC G L + L
Sbjct: 98 HENIVNLLGACTIGGPILVITEYCCYGDLLNFL 130
>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 = 40.1 bits (94), Expect = 2e-04
Identities = 24/82 (29%), Positives = 37/82 (45%), Gaps = 12/82 (14%)
Query: 89 KEGNK--VAIKNLKKSRIDLTRP-----LLLELKRLKDLHHDHLVKFIGACLDPPHCCLL 141
E K VAIK L++ T P +L E + + H H+V+ +G CL L+
Sbjct: 32 GEKVKIPVAIKVLREE----TSPKANKEILDEAYVMASVDHPHVVRLLGICLSSQV-QLI 86
Query: 142 TEYCPKGSLQDILENEQFKLEP 163
T+ P G L D + N + +
Sbjct: 87 TQLMPLGCLLDYVRNHKDNIGS 108
Score = 35.5 bits (82), Expect = 0.009
Identities = 19/64 (29%), Positives = 30/64 (46%), Gaps = 1/64 (1%)
Query: 24 HDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHDIVKFNGYLK 83
H H+V+ +G CL L+T+ P G L D + N + + + + I K YL+
Sbjct: 68 HPHVVRLLGICLSSQV-QLITQLMPLGCLLDYVRNHKDNIGSQYLLNWCVQIAKGMSYLE 126
Query: 84 TKEL 87
K L
Sbjct: 127 EKRL 130
>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 = 39.6 bits (92), Expect = 4e-04
Identities = 23/66 (34%), Positives = 35/66 (53%), Gaps = 1/66 (1%)
Query: 93 KVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQD 152
KVA+K LK + + + L E +K L HD LV+ ++TEY KGSL D
Sbjct: 32 KVAVKTLKPGTMSV-QAFLEEANLMKTLQHDKLVRLYAVVTKEEPIYIITEYMAKGSLLD 90
Query: 153 ILENEQ 158
L++++
Sbjct: 91 FLKSDE 96
Score = 31.9 bits (72), Expect = 0.15
Identities = 15/42 (35%), Positives = 23/42 (54%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQ 60
+K L HD LV+ ++TEY KGSL D L++++
Sbjct: 55 MKTLQHDKLVRLYAVVTKEEPIYIITEYMAKGSLLDFLKSDE 96
>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 = 39.0 bits (91), Expect = 6e-04
Identities = 15/42 (35%), Positives = 25/42 (59%)
Query: 113 ELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 154
E++ LK+L H+ +V++ G D + EY P GS++D L
Sbjct: 54 EIQLLKNLQHERIVQYYGCLRDDETLSIFMEYMPGGSVKDQL 95
Score = 37.1 bits (86), Expect = 0.002
Identities = 14/38 (36%), Positives = 22/38 (57%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
LK+L H+ +V++ G D + EY P GS++D L
Sbjct: 58 LKNLQHERIVQYYGCLRDDETLSIFMEYMPGGSVKDQL 95
>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 = 38.9 bits (90), Expect = 7e-04
Identities = 20/61 (32%), Positives = 32/61 (52%)
Query: 94 VAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDI 153
VA+K LK + + + E + L +L H+H+VKF G C++ ++ EY G L
Sbjct: 38 VAVKTLKDASDNARKDFHREAELLTNLQHEHIVKFYGVCVEGDPLIMVFEYMKHGDLNKF 97
Query: 154 L 154
L
Sbjct: 98 L 98
Score = 32.3 bits (73), Expect = 0.11
Identities = 14/38 (36%), Positives = 21/38 (55%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
L +L H+H+VKF G C++ ++ EY G L L
Sbjct: 61 LTNLQHEHIVKFYGVCVEGDPLIMVFEYMKHGDLNKFL 98
>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 = 38.7 bits (90), Expect = 7e-04
Identities = 19/75 (25%), Positives = 36/75 (48%), Gaps = 3/75 (4%)
Query: 93 KVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQD 152
++AIK + + +PL E+ L H ++V+++G+ + + E P GSL
Sbjct: 35 RIAIKEIPERDSRYVQPLHEEIALHSYLKHRNIVQYLGSDSENGFFKIFMEQVPGGSLSA 94
Query: 153 ILENEQFKLEPMFKN 167
+L + K P+ N
Sbjct: 95 LLRS---KWGPLKDN 106
Score = 31.0 bits (70), Expect = 0.27
Identities = 13/50 (26%), Positives = 24/50 (48%), Gaps = 3/50 (6%)
Query: 20 KDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKN 69
L H ++V+++G+ + + E P GSL +L + K P+ N
Sbjct: 60 SYLKHRNIVQYLGSDSENGFFKIFMEQVPGGSLSALLRS---KWGPLKDN 106
>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 = 38.9 bits (90), Expect = 8e-04
Identities = 25/74 (33%), Positives = 39/74 (52%), Gaps = 2/74 (2%)
Query: 93 KVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQD 152
KVA+K +K + + L E +K L HD LVK P ++TE+ KGSL D
Sbjct: 32 KVAVKTMKPGSMSVE-AFLAEANVMKTLQHDKLVKLHAVVTKEP-IYIITEFMAKGSLLD 89
Query: 153 ILENEQFKLEPMFK 166
L++++ +P+ K
Sbjct: 90 FLKSDEGSKQPLPK 103
Score = 31.9 bits (72), Expect = 0.13
Identities = 18/50 (36%), Positives = 28/50 (56%), Gaps = 1/50 (2%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFK 68
+K L HD LVK P ++TE+ KGSL D L++++ +P+ K
Sbjct: 55 MKTLQHDKLVKLHAVVTKEP-IYIITEFMAKGSLLDFLKSDEGSKQPLPK 103
>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 = 38.2 bits (89), Expect = 0.001
Identities = 26/78 (33%), Positives = 40/78 (51%), Gaps = 1/78 (1%)
Query: 85 KELLKEGNKVAIKNLKKSRI-DLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTE 143
K +LK +VA+K + + DL R L E + LK H ++VK IG C+ ++ E
Sbjct: 13 KGVLKGNTEVAVKTCRSTLPPDLKRKFLQEAEILKQYDHPNIVKLIGVCVQKQPIYIVME 72
Query: 144 YCPKGSLQDILENEQFKL 161
P GSL L ++ +L
Sbjct: 73 LVPGGSLLTFLRKKKNRL 90
Score = 29.0 bits (65), Expect = 1.3
Identities = 16/55 (29%), Positives = 25/55 (45%), Gaps = 3/55 (5%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMH 73
LK H ++VK IG C+ ++ E P GSL L ++ +L L+
Sbjct: 46 LKQYDHPNIVKLIGVCVQKQPIYIVMELVPGGSLLTFLRKKKNRLT---VKKLLQ 97
>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 = 38.3 bits (89), Expect = 0.001
Identities = 26/74 (35%), Positives = 38/74 (51%), Gaps = 3/74 (4%)
Query: 91 GNKVAIKNLKKS-RIDLTRPLLLELKRLKDLHHDHLVKFIGACLDP--PHCCLLTEYCPK 147
G VA+K LK+ T E+ LK L+H+++VK+ G C + L+ EY P
Sbjct: 33 GEMVAVKTLKRECGQQNTSGWKKEINILKTLYHENIVKYKGCCSEQGGKGLQLIMEYVPL 92
Query: 148 GSLQDILENEQFKL 161
GSL+D L + L
Sbjct: 93 GSLRDYLPKHKLNL 106
Score = 32.6 bits (74), Expect = 0.098
Identities = 18/47 (38%), Positives = 27/47 (57%), Gaps = 2/47 (4%)
Query: 19 LKDLHHDHLVKFIGACLDP--PHCCLLTEYCPKGSLQDILENEQFKL 63
LK L+H+++VK+ G C + L+ EY P GSL+D L + L
Sbjct: 60 LKTLYHENIVKYKGCCSEQGGKGLQLIMEYVPLGSLRDYLPKHKLNL 106
>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 = 38.1 bits (89), Expect = 0.001
Identities = 22/66 (33%), Positives = 34/66 (51%), Gaps = 2/66 (3%)
Query: 94 VAIKNLKKSRI-DLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQD 152
VA+K LK ++ D+ L E + L H++L++ G L P ++TE P GSL D
Sbjct: 26 VAVKCLKSDKLSDIMDDFLKEAAIMHSLDHENLIRLYGVVLTHP-LMMVTELAPLGSLLD 84
Query: 153 ILENEQ 158
L +
Sbjct: 85 RLRKDA 90
Score = 34.3 bits (79), Expect = 0.020
Identities = 21/71 (29%), Positives = 32/71 (45%), Gaps = 8/71 (11%)
Query: 22 LHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHD----IVK 77
L H++L++ G L P ++TE P GSL D L + F S + D I
Sbjct: 53 LDHENLIRLYGVVLTHP-LMMVTELAPLGSLLDRLRKDAL---GHFLISTLCDYAVQIAN 108
Query: 78 FNGYLKTKELL 88
YL++K +
Sbjct: 109 GMRYLESKRFI 119
>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 = 38.4 bits (89), Expect = 0.001
Identities = 26/85 (30%), Positives = 40/85 (47%), Gaps = 6/85 (7%)
Query: 87 LLKEGNKVAIKN--LKKSRIDLT----RPLLLELKRLKDLHHDHLVKFIGACLDPPHCCL 140
L +G +A+K L S + L E+ LK L H ++V+++G CLD +
Sbjct: 20 LTNQGQLIAVKQVELDTSNVLAAEKEYEKLQEEVDLLKSLKHVNIVQYLGTCLDDNTISI 79
Query: 141 LTEYCPKGSLQDILENEQFKLEPMF 165
E+ P GS+ IL EP+F
Sbjct: 80 FMEFVPGGSISSILNRFGPLPEPVF 104
Score = 35.3 bits (81), Expect = 0.010
Identities = 18/49 (36%), Positives = 27/49 (55%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMF 67
LK L H ++V+++G CLD + E+ P GS+ IL EP+F
Sbjct: 56 LKSLKHVNIVQYLGTCLDDNTISIFMEFVPGGSISSILNRFGPLPEPVF 104
>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 = 38.2 bits (89), Expect = 0.001
Identities = 24/82 (29%), Positives = 37/82 (45%), Gaps = 12/82 (14%)
Query: 81 YLKTKELLKEGNK---VAIKNLKKS-----RIDLTRPLLLELKRLKDLHHDHLVKFIGAC 132
+L L+ N VA+K LK++ R D R E + L + H+++VKF G C
Sbjct: 22 FLGECYHLEPENDKELVAVKTLKETASNDARKDFER----EAELLTNFQHENIVKFYGVC 77
Query: 133 LDPPHCCLLTEYCPKGSLQDIL 154
+ ++ EY G L L
Sbjct: 78 TEGDPPIMVFEYMEHGDLNKFL 99
Score = 31.6 bits (72), Expect = 0.15
Identities = 12/38 (31%), Positives = 19/38 (50%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
L + H+++VKF G C + ++ EY G L L
Sbjct: 62 LTNFQHENIVKFYGVCTEGDPPIMVFEYMEHGDLNKFL 99
>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 = 37.9 bits (88), Expect = 0.001
Identities = 27/82 (32%), Positives = 39/82 (47%), Gaps = 4/82 (4%)
Query: 93 KVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQD 152
KVAIK+LK+ + L E +K L H LV+ P ++TEY GSL D
Sbjct: 32 KVAIKSLKQGSMSPE-AFLAEANLMKQLQHPRLVRLYAVVTQEP-IYIITEYMENGSLVD 89
Query: 153 ILENEQFKLEPMFKNSLMNKAA 174
L+ + + N L++ AA
Sbjct: 90 FLKTPEGIKLTI--NKLIDMAA 109
Score = 28.7 bits (64), Expect = 1.7
Identities = 20/73 (27%), Positives = 29/73 (39%), Gaps = 14/73 (19%)
Query: 1 MSLYDVGRQVFV---------PTAFYK----LKDLHHDHLVKFIGACLDPPHCCLLTEYC 47
M Y+ +V + P AF +K L H LV+ P ++TEY
Sbjct: 24 MGYYNGHTKVAIKSLKQGSMSPEAFLAEANLMKQLQHPRLVRLYAVVTQEP-IYIITEYM 82
Query: 48 PKGSLQDILENEQ 60
GSL D L+ +
Sbjct: 83 ENGSLVDFLKTPE 95
>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 = 38.1 bits (88), Expect = 0.001
Identities = 25/64 (39%), Positives = 35/64 (54%), Gaps = 2/64 (3%)
Query: 93 KVAIKNLKKS-RIDLTRPLLLELKRLKDLH-HDHLVKFIGACLDPPHCCLLTEYCPKGSL 150
KVA+K LK + R + L+ ELK + L H ++V +GAC ++TEYC G L
Sbjct: 69 KVAVKMLKSTARSSEKQALMSELKIMSHLGPHLNIVNLLGACTKGGPIYIITEYCRYGDL 128
Query: 151 QDIL 154
D L
Sbjct: 129 VDYL 132
Score = 27.7 bits (61), Expect = 3.7
Identities = 13/33 (39%), Positives = 18/33 (54%)
Query: 24 HDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
H ++V +GAC ++TEYC G L D L
Sbjct: 100 HLNIVNLLGACTKGGPIYIITEYCRYGDLVDYL 132
>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 = 37.6 bits (87), Expect = 0.002
Identities = 24/74 (32%), Positives = 45/74 (60%), Gaps = 3/74 (4%)
Query: 91 GNKVAIKNLK-KSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPP--HCCLLTEYCPK 147
G +VA+K+LK +S + L E++ L++L+H+++VK+ G C + L+ E+ P
Sbjct: 33 GEQVAVKSLKPESGGNHIADLKKEIEILRNLYHENIVKYKGICTEDGGNGIKLIMEFLPS 92
Query: 148 GSLQDILENEQFKL 161
GSL++ L + K+
Sbjct: 93 GSLKEYLPRNKNKI 106
Score = 29.9 bits (67), Expect = 0.58
Identities = 15/47 (31%), Positives = 29/47 (61%), Gaps = 2/47 (4%)
Query: 19 LKDLHHDHLVKFIGACLDPP--HCCLLTEYCPKGSLQDILENEQFKL 63
L++L+H+++VK+ G C + L+ E+ P GSL++ L + K+
Sbjct: 60 LRNLYHENIVKYKGICTEDGGNGIKLIMEFLPSGSLKEYLPRNKNKI 106
>gnl|CDD|173723 cd06605, PKc_MAPKK, Catalytic domain of the dual-specificity
Protein Kinase, Mitogen-Activated Protein Kinase Kinase.
Protein kinases (PKs), MAP kinase kinase (MAPKK)
subfamily, catalytic (c) domain. PKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine or tyrosine residues on protein
substrates. The MAPKK subfamily is part of a larger
superfamily that includes the catalytic domains of other
protein serine/threonine kinases, protein tyrosine
kinases, RIO kinases, aminoglycoside phosphotransferase,
choline kinase, and phosphoinositide 3-kinase. The
mitogen-activated protein (MAP) kinase signaling
pathways are important mediators of cellular responses
to extracellular signals. The pathways involve a triple
kinase core cascade comprising the MAP kinase (MAPK),
which is phosphorylated and activated by a MAPK kinase
(MAPKK or MKK or MAP2K), which itself is phosphorylated
and activated by a MAPK kinase kinase (MAPKKK or MKKK or
MAP3K). MAPKKs are dual-specificity PKs that
phosphorylate their downstream targets, MAPKs, at
specific threonine and tyrosine residues. There are
three MAPK subfamilies: extracellular signal-regulated
kinase (ERK), c-Jun N-terminal kinase (JNK), and p38. In
mammalian cells, there are seven MAPKKs (named MKK1-7)
and 20 MAPKKKs. Each MAPK subfamily can be activated by
at least two cognate MAPKKs and by multiple MAPKKKs.
Length = 265
Score = 37.3 bits (87), Expect = 0.002
Identities = 15/45 (33%), Positives = 21/45 (46%)
Query: 110 LLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 154
+L EL L + ++V F GA + + EY GSL IL
Sbjct: 46 ILRELDILHKCNSPYIVGFYGAFYNNGDISICMEYMDGGSLDKIL 90
Score = 31.5 bits (72), Expect = 0.21
Identities = 12/38 (31%), Positives = 17/38 (44%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
L + ++V F GA + + EY GSL IL
Sbjct: 53 LHKCNSPYIVGFYGAFYNNGDISICMEYMDGGSLDKIL 90
>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 = 37.3 bits (86), Expect = 0.002
Identities = 26/74 (35%), Positives = 36/74 (48%), Gaps = 10/74 (13%)
Query: 87 LLKEGNK--VAIKNLKK----SRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCL 140
LL E +K VA+K LK+ +R D R E + L L H H+V+F G C + +
Sbjct: 29 LLPEQDKMLVAVKALKEASESARQDFQR----EAELLTVLQHQHIVRFYGVCTEGRPLLM 84
Query: 141 LTEYCPKGSLQDIL 154
+ EY G L L
Sbjct: 85 VFEYMRHGDLNRFL 98
Score = 29.6 bits (66), Expect = 0.76
Identities = 13/38 (34%), Positives = 18/38 (47%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
L L H H+V+F G C + ++ EY G L L
Sbjct: 61 LTVLQHQHIVRFYGVCTEGRPLLMVFEYMRHGDLNRFL 98
>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 = 37.2 bits (86), Expect = 0.003
Identities = 22/71 (30%), Positives = 34/71 (47%), Gaps = 9/71 (12%)
Query: 94 VAIKNL-----KKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKG 148
VA+K L K +R D L E+K L L ++++ +G C+D C++TEY G
Sbjct: 49 VAVKILRPDANKNARNDF----LKEVKILSRLKDPNIIRLLGVCVDEDPLCMITEYMENG 104
Query: 149 SLQDILENEQF 159
L L +
Sbjct: 105 DLNQFLSSHHL 115
Score = 31.8 bits (72), Expect = 0.17
Identities = 12/43 (27%), Positives = 21/43 (48%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQF 61
L L ++++ +G C+D C++TEY G L L +
Sbjct: 73 LSRLKDPNIIRLLGVCVDEDPLCMITEYMENGDLNQFLSSHHL 115
>gnl|CDD|132951 cd06620, PKc_MAPKK_Byr1_like, Catalytic domain of fungal Byr1-like
dual-specificity MAP kinase kinases. Protein kinases
(PKs), MAP kinase kinase (MAPKK) subfamily, fungal
Byr1-like proteins, catalytic (c) domain. PKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine or tyrosine residues on protein
substrates. The MAPKK subfamily is part of a larger
superfamily that includes the catalytic domains of other
protein serine/threonine kinases, protein tyrosine
kinases, RIO kinases, aminoglycoside phosphotransferase,
choline kinase, and phosphoinositide 3-kinase. The
mitogen-activated protein (MAP) kinase signaling
pathways are important mediators of cellular responses
to extracellular signals. The pathways involve a triple
kinase core cascade comprising of the MAP kinase (MAPK),
which is phosphorylated and activated by a MAPK kinase
(MAPKK or MKK), which itself is phosphorylated and
activated by a MAPK kinase kinase (MAPKKK or MKKK).
Members of this group include the MAPKKs Byr1 from
Schizosaccharomyces pombe, FUZ7 from Ustilago maydis,
and related proteins. Byr1 phosphorylates its downstream
target, the MAPK Spk1, and is regulated by the MAPKKK
Byr2. The Spk1 cascade is pheromone-responsive and is
essential for sporulation and sexual differentiation in
fission yeast. FUZ7 phosphorylates and activates its
target, the MAPK Crk1, which is required in mating and
virulence in U. maydis.
Length = 284
Score = 37.1 bits (86), Expect = 0.003
Identities = 14/49 (28%), Positives = 26/49 (53%)
Query: 106 LTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 154
+ + +L EL+ + + ++V F GA L+ + C+ E+ GSL I
Sbjct: 46 VRKQILRELQIMHECRSPYIVSFYGAFLNENNICMCMEFMDCGSLDRIY 94
Score = 33.2 bits (76), Expect = 0.057
Identities = 13/42 (30%), Positives = 22/42 (52%), Gaps = 3/42 (7%)
Query: 18 KLKDLHH---DHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
+L+ +H ++V F GA L+ + C+ E+ GSL I
Sbjct: 53 ELQIMHECRSPYIVSFYGAFLNENNICMCMEFMDCGSLDRIY 94
>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 = 37.4 bits (85), Expect = 0.003
Identities = 22/73 (30%), Positives = 31/73 (42%), Gaps = 4/73 (5%)
Query: 93 KVAIKNLKKSRI---DLTRPLLLELKRLKDL-HHDHLVKFIGACLDPPHCCLLTEYCPKG 148
VA+K L K L E++ L L H ++VK D L+ EY G
Sbjct: 24 LVALKVLAKKLESKSKEVERFLREIQILASLNHPPNIVKLYDFFQDEGSLYLVMEYVDGG 83
Query: 149 SLQDILENEQFKL 161
SL+D+L+ K
Sbjct: 84 SLEDLLKKIGRKG 96
Score = 30.9 bits (68), Expect = 0.34
Identities = 18/73 (24%), Positives = 30/73 (41%), Gaps = 2/73 (2%)
Query: 23 HHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQF--KLEPMFKNSLMHDIVKFNG 80
H ++VK D L+ EY GSL+D+L+ L ++ I+
Sbjct: 56 HPPNIVKLYDFFQDEGSLYLVMEYVDGGSLEDLLKKIGRKGPLSESEALFILAQILSALE 115
Query: 81 YLKTKELLKEGNK 93
YL +K ++ K
Sbjct: 116 YLHSKGIIHRDIK 128
>gnl|CDD|165291 PHA02988, PHA02988, hypothetical protein; Provisional.
Length = 283
Score = 37.0 bits (86), Expect = 0.003
Identities = 20/75 (26%), Positives = 36/75 (48%), Gaps = 7/75 (9%)
Query: 91 GNKVAIKNLKKSRID---LTRPLLLELKRLKDLHHDHLVK----FIGACLDPPHCCLLTE 143
+V I+ KK L E+K L+ + ++++K I D P L+ E
Sbjct: 43 NKEVIIRTFKKFHKGHKVLIDITENEIKNLRRIDSNNILKIYGFIIDIVDDLPRLSLILE 102
Query: 144 YCPKGSLQDILENEQ 158
YC +G L+++L+ E+
Sbjct: 103 YCTRGYLREVLDKEK 117
Score = 27.4 bits (61), Expect = 3.9
Identities = 13/46 (28%), Positives = 26/46 (56%), Gaps = 4/46 (8%)
Query: 19 LKDLHHDHLVK----FIGACLDPPHCCLLTEYCPKGSLQDILENEQ 60
L+ + ++++K I D P L+ EYC +G L+++L+ E+
Sbjct: 72 LRRIDSNNILKIYGFIIDIVDDLPRLSLILEYCTRGYLREVLDKEK 117
>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 = 36.7 bits (86), Expect = 0.004
Identities = 27/87 (31%), Positives = 38/87 (43%), Gaps = 9/87 (10%)
Query: 89 KEGNKVAIKNLKKSRID-----LTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTE 143
K G VA LKK R+D + L E+ LK+L H ++VK + L+ E
Sbjct: 22 KTGEIVA---LKKIRLDNEEEGIPSTALREISLLKELKHPNIVKLLDVIHTERKLYLVFE 78
Query: 144 YCPKGSLQDILENEQFKLEPMFKNSLM 170
YC L+ L+ L P S+M
Sbjct: 79 YCDM-DLKKYLDKRPGPLSPNLIKSIM 104
Score = 32.1 bits (74), Expect = 0.13
Identities = 16/54 (29%), Positives = 24/54 (44%), Gaps = 1/54 (1%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLM 72
LK+L H ++VK + L+ EYC L+ L+ L P S+M
Sbjct: 52 LKELKHPNIVKLLDVIHTERKLYLVFEYCDM-DLKKYLDKRPGPLSPNLIKSIM 104
>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 = 36.5 bits (84), Expect = 0.005
Identities = 29/83 (34%), Positives = 44/83 (53%), Gaps = 7/83 (8%)
Query: 89 KEGNKV--AIKNLKK--SRIDLTRPLLLELKRLKDL-HHDHLVKFIGACLDPPHCCLLTE 143
K+G K+ AIK LK+ S D R EL+ L L HH +++ +GAC + + + E
Sbjct: 25 KDGLKMNAAIKMLKEFASEND-HRDFAGELEVLCKLGHHPNIINLLGACENRGYLYIAIE 83
Query: 144 YCPKGSLQDILENEQ-FKLEPMF 165
Y P G+L D L + + +P F
Sbjct: 84 YAPYGNLLDFLRKSRVLETDPAF 106
Score = 32.3 bits (73), Expect = 0.13
Identities = 14/46 (30%), Positives = 25/46 (54%), Gaps = 1/46 (2%)
Query: 23 HHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQ-FKLEPMF 67
HH +++ +GAC + + + EY P G+L D L + + +P F
Sbjct: 61 HHPNIINLLGACENRGYLYIAIEYAPYGNLLDFLRKSRVLETDPAF 106
>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 = 36.1 bits (83), Expect = 0.005
Identities = 24/64 (37%), Positives = 34/64 (53%), Gaps = 2/64 (3%)
Query: 93 KVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQD 152
KVA+K LK + L E + +K L HD LV+ + P ++TEY KGSL D
Sbjct: 32 KVAVKTLKPGTMS-PESFLEEAQIMKKLRHDKLVQLYAVVSEEP-IYIVTEYMSKGSLLD 89
Query: 153 ILEN 156
L++
Sbjct: 90 FLKD 93
Score = 29.2 bits (65), Expect = 1.00
Identities = 18/50 (36%), Positives = 27/50 (54%), Gaps = 5/50 (10%)
Query: 13 PTAFYK----LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILEN 58
P +F + +K L HD LV+ + P ++TEY KGSL D L++
Sbjct: 45 PESFLEEAQIMKKLRHDKLVQLYAVVSEEP-IYIVTEYMSKGSLLDFLKD 93
>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 = 35.6 bits (82), Expect = 0.008
Identities = 19/75 (25%), Positives = 32/75 (42%), Gaps = 2/75 (2%)
Query: 78 FNGYLKTKELLKEG-NKVAIKNLKKSRIDLTR-PLLLELKRLKDLHHDHLVKFIGACLDP 135
+ G G +VA+K L+K D + L E + + +H ++VK +G CL
Sbjct: 12 YEGTATDILGPGSGPIRVAVKTLRKGATDQEKKEFLKEAHLMSNFNHPNIVKLLGVCLLN 71
Query: 136 PHCCLLTEYCPKGSL 150
++ E G L
Sbjct: 72 EPQYIIMELMEGGDL 86
>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 = 35.3 bits (81), Expect = 0.010
Identities = 25/69 (36%), Positives = 37/69 (53%), Gaps = 5/69 (7%)
Query: 90 EGNKVAIKNLKKSRIDLT-RPLLLELKRLKDLHHDHLVKFIGACL-DPPHCCLLTEYCPK 147
GNKVA+K +K D T + L E + L H +LV+ +G + + ++TEY K
Sbjct: 28 RGNKVAVKCIKN---DATAQAFLAEASVMTQLRHSNLVQLLGVIVEEKGGLYIVTEYMAK 84
Query: 148 GSLQDILEN 156
GSL D L +
Sbjct: 85 GSLVDYLRS 93
Score = 29.6 bits (66), Expect = 0.91
Identities = 18/55 (32%), Positives = 28/55 (50%), Gaps = 2/55 (3%)
Query: 5 DVGRQVFVPTAFYKLKDLHHDHLVKFIGACL-DPPHCCLLTEYCPKGSLQDILEN 58
D Q F+ A + L H +LV+ +G + + ++TEY KGSL D L +
Sbjct: 40 DATAQAFLAEASV-MTQLRHSNLVQLLGVIVEEKGGLYIVTEYMAKGSLVDYLRS 93
>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 = 35.2 bits (81), Expect = 0.010
Identities = 17/67 (25%), Positives = 31/67 (46%)
Query: 22 LHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHDIVKFNGY 81
L H+ LV+ G C ++TEY G L + L + +P + D+ + Y
Sbjct: 56 LSHEKLVQLYGVCTKQRPIYIVTEYMSNGCLLNYLREHGKRFQPSQLLEMCKDVCEGMAY 115
Query: 82 LKTKELL 88
L++K+ +
Sbjct: 116 LESKQFI 122
Score = 34.5 bits (79), Expect = 0.018
Identities = 20/70 (28%), Positives = 32/70 (45%), Gaps = 1/70 (1%)
Query: 94 VAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDI 153
VAIK +K+ + + E K + L H+ LV+ G C ++TEY G L +
Sbjct: 31 VAIKMIKEGSMS-EDEFIEEAKVMMKLSHEKLVQLYGVCTKQRPIYIVTEYMSNGCLLNY 89
Query: 154 LENEQFKLEP 163
L + +P
Sbjct: 90 LREHGKRFQP 99
>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 = 35.0 bits (80), Expect = 0.011
Identities = 24/63 (38%), Positives = 33/63 (52%), Gaps = 2/63 (3%)
Query: 93 KVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQD 152
KVAIK LK + + L E + +K L HD LV + P ++TE+ KGSL D
Sbjct: 32 KVAIKTLKPGTM-MPEAFLQEAQIMKKLRHDKLVPLYAVVSEEP-IYIVTEFMGKGSLLD 89
Query: 153 ILE 155
L+
Sbjct: 90 FLK 92
Score = 28.5 bits (63), Expect = 2.1
Identities = 18/49 (36%), Positives = 25/49 (51%), Gaps = 5/49 (10%)
Query: 13 PTAFYK----LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILE 57
P AF + +K L HD LV + P ++TE+ KGSL D L+
Sbjct: 45 PEAFLQEAQIMKKLRHDKLVPLYAVVSEEP-IYIVTEFMGKGSLLDFLK 92
>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 = 35.2 bits (81), Expect = 0.012
Identities = 10/43 (23%), Positives = 21/43 (48%)
Query: 113 ELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILE 155
E + L L +++++ + LD ++ EY G L +L+
Sbjct: 49 EARVLAKLDSSYIIRYYESFLDKGKLNIVMEYAENGDLHKLLK 91
Score = 34.0 bits (78), Expect = 0.023
Identities = 9/39 (23%), Positives = 19/39 (48%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILE 57
L L +++++ + LD ++ EY G L +L+
Sbjct: 53 LAKLDSSYIIRYYESFLDKGKLNIVMEYAENGDLHKLLK 91
>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 = 35.0 bits (80), Expect = 0.013
Identities = 25/69 (36%), Positives = 35/69 (50%), Gaps = 2/69 (2%)
Query: 93 KVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQD 152
+VAIK LK + L E + +K L H+ LV+ + P ++TEY KGSL D
Sbjct: 32 RVAIKTLKPGTMS-PEAFLQEAQVMKKLRHEKLVQLYAVVSEEP-IYIVTEYMSKGSLLD 89
Query: 153 ILENEQFKL 161
L+ E K
Sbjct: 90 FLKGEMGKY 98
Score = 29.6 bits (66), Expect = 0.92
Identities = 20/55 (36%), Positives = 28/55 (50%), Gaps = 5/55 (9%)
Query: 13 PTAFYK----LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKL 63
P AF + +K L H+ LV+ + P ++TEY KGSL D L+ E K
Sbjct: 45 PEAFLQEAQVMKKLRHEKLVQLYAVVSEEP-IYIVTEYMSKGSLLDFLKGEMGKY 98
>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 = 35.1 bits (81), Expect = 0.013
Identities = 14/55 (25%), Positives = 27/55 (49%)
Query: 113 ELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKN 167
E+ L L H ++V+++G + + + E P GSL +L+ EP+ +
Sbjct: 52 EIALLSKLQHPNIVQYLGTEREEDNLYIFLELVPGGSLAKLLKKYGSFPEPVIRL 106
Score = 32.4 bits (74), Expect = 0.093
Identities = 13/51 (25%), Positives = 25/51 (49%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKN 69
L L H ++V+++G + + + E P GSL +L+ EP+ +
Sbjct: 56 LSKLQHPNIVQYLGTEREEDNLYIFLELVPGGSLAKLLKKYGSFPEPVIRL 106
>gnl|CDD|173736 cd07832, STKc_CCRK, Catalytic domain of the Serine/Threonine
Kinase, Cell Cycle-Related Kinase. Serine/Threonine
Kinases (STKs), Cell Cycle-Related Kinase (CCRK) p42
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
CCRK subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. CCRK was previously called p42. It is a
Cyclin-Dependent Kinase (CDK)-Activating Kinase (CAK)
which is essential for the activation of CDK2. It is
indispensable for cell growth and has been implicated in
the progression of glioblastoma multiforme. In the
heart, a splice variant of CCRK with a different
C-terminal half is expressed, this variant promotes
cardiac cell growth and survival and is significantly
down-regulated during the development of heart failure.
Length = 286
Score = 35.0 bits (81), Expect = 0.014
Identities = 19/73 (26%), Positives = 35/73 (47%), Gaps = 3/73 (4%)
Query: 88 LKEGNKVAIKNLKKSRID--LTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYC 145
+ G VA+K + R++ + L E+K L+ H ++VK + L+ EY
Sbjct: 22 RETGETVALKKVALRRLEGGIPNQALREIKALQACQHPYVVKLLDVFPHGSGFVLVMEYM 81
Query: 146 PKGSLQDILENEQ 158
P L ++L +E+
Sbjct: 82 P-SDLSEVLRDEE 93
Score = 28.8 bits (65), Expect = 1.5
Identities = 15/59 (25%), Positives = 26/59 (44%), Gaps = 1/59 (1%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHDIVK 77
L+ H ++VK + L+ EY P L ++L +E+ L S M ++K
Sbjct: 53 LQACQHPYVVKLLDVFPHGSGFVLVMEYMP-SDLSEVLRDEERPLPEAQVKSYMRMLLK 110
>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 = 34.6 bits (79), Expect = 0.015
Identities = 16/45 (35%), Positives = 27/45 (60%), Gaps = 2/45 (4%)
Query: 113 ELKRLKDLHHDHLVKFIGACLDPPHCCL--LTEYCPKGSLQDILE 155
E++ LK+L H+ +V++ G DP L E+ P GS++D L+
Sbjct: 54 EIQLLKNLLHERIVQYYGCLRDPMERTLSIFMEHMPGGSIKDQLK 98
Score = 32.7 bits (74), Expect = 0.087
Identities = 15/41 (36%), Positives = 24/41 (58%), Gaps = 2/41 (4%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCL--LTEYCPKGSLQDILE 57
LK+L H+ +V++ G DP L E+ P GS++D L+
Sbjct: 58 LKNLLHERIVQYYGCLRDPMERTLSIFMEHMPGGSIKDQLK 98
>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 = 35.0 bits (80), Expect = 0.016
Identities = 18/70 (25%), Positives = 33/70 (47%), Gaps = 1/70 (1%)
Query: 92 NKVAIKNLKKSRIDLTR-PLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSL 150
VA+K L+ R L E+K + L + ++++ +G C+ C++TEY G L
Sbjct: 45 VLVAVKMLRADVTKTARNDFLKEIKIMSRLKNPNIIRLLGVCVSDDPLCMITEYMENGDL 104
Query: 151 QDILENEQFK 160
L + +
Sbjct: 105 NQFLSQREIE 114
Score = 28.4 bits (63), Expect = 2.3
Identities = 10/41 (24%), Positives = 21/41 (51%)
Query: 22 LHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFK 62
L + ++++ +G C+ C++TEY G L L + +
Sbjct: 74 LKNPNIIRLLGVCVSDDPLCMITEYMENGDLNQFLSQREIE 114
>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 = 34.6 bits (79), Expect = 0.019
Identities = 17/45 (37%), Positives = 27/45 (60%), Gaps = 2/45 (4%)
Query: 113 ELKRLKDLHHDHLVKFIGACLDPPH--CCLLTEYCPKGSLQDILE 155
E++ LK+L HD +V++ G DP + EY P GS++D L+
Sbjct: 54 EIQLLKNLRHDRIVQYYGCLRDPEEKKLSIFVEYMPGGSIKDQLK 98
Score = 32.3 bits (73), Expect = 0.11
Identities = 16/41 (39%), Positives = 24/41 (58%), Gaps = 2/41 (4%)
Query: 19 LKDLHHDHLVKFIGACLDPPH--CCLLTEYCPKGSLQDILE 57
LK+L HD +V++ G DP + EY P GS++D L+
Sbjct: 58 LKNLRHDRIVQYYGCLRDPEEKKLSIFVEYMPGGSIKDQLK 98
>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 = 34.3 bits (79), Expect = 0.020
Identities = 19/64 (29%), Positives = 29/64 (45%), Gaps = 1/64 (1%)
Query: 94 VAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDI 153
VA+K LK +D L E + +K L H L++ C ++TE GSL +
Sbjct: 33 VAVKTLKPGTMDPKD-FLAEAQIMKKLRHPKLIQLYAVCTLEEPIYIVTELMKYGSLLEY 91
Query: 154 LENE 157
L+
Sbjct: 92 LQGG 95
Score = 27.4 bits (61), Expect = 4.7
Identities = 13/51 (25%), Positives = 20/51 (39%), Gaps = 4/51 (7%)
Query: 13 PTAFYK----LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENE 59
P F +K L H L++ C ++TE GSL + L+
Sbjct: 45 PKDFLAEAQIMKKLRHPKLIQLYAVCTLEEPIYIVTELMKYGSLLEYLQGG 95
>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 = 34.6 bits (80), Expect = 0.020
Identities = 23/72 (31%), Positives = 36/72 (50%), Gaps = 3/72 (4%)
Query: 94 VAIKNLKKSRID--LTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQ 151
VAIK K+S D + + L E+K L+ L H+++V A L+ EY + +L
Sbjct: 29 VAIKKFKESEDDEDVKKTALREVKVLRQLRHENIVNLKEAFRRKGRLYLVFEYVER-TLL 87
Query: 152 DILENEQFKLEP 163
++LE L P
Sbjct: 88 ELLEASPGGLPP 99
>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 = 34.2 bits (78), Expect = 0.023
Identities = 21/72 (29%), Positives = 34/72 (47%), Gaps = 1/72 (1%)
Query: 90 EGNKVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGS 149
E KVAIK +++ + + E + + L H LV+ G C + CL+ E+ G
Sbjct: 27 EKRKVAIKTIREGAMS-EEDFIEEAQVMMKLSHPKLVQLYGVCTERSPICLVFEFMEHGC 85
Query: 150 LQDILENEQFKL 161
L D L ++ K
Sbjct: 86 LSDYLRAQRGKF 97
Score = 29.5 bits (66), Expect = 0.81
Identities = 14/45 (31%), Positives = 21/45 (46%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKL 63
+ L H LV+ G C + CL+ E+ G L D L ++ K
Sbjct: 53 MMKLSHPKLVQLYGVCTERSPICLVFEFMEHGCLSDYLRAQRGKF 97
>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 = 34.2 bits (79), Expect = 0.023
Identities = 20/73 (27%), Positives = 38/73 (52%), Gaps = 5/73 (6%)
Query: 85 KELLKEGNK-VAIKNLKKSRID-LTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLT 142
K + KE + VAIK + ++ + ++ E+ LK ++VK+ G+ ++
Sbjct: 21 KAIHKETGQVVAIKVV---PVEEDLQEIIKEISILKQCDSPYIVKYYGSYFKNTDLWIVM 77
Query: 143 EYCPKGSLQDILE 155
EYC GS+ DI++
Sbjct: 78 EYCGAGSVSDIMK 90
Score = 31.9 bits (73), Expect = 0.12
Identities = 12/39 (30%), Positives = 21/39 (53%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILE 57
LK ++VK+ G+ ++ EYC GS+ DI++
Sbjct: 52 LKQCDSPYIVKYYGSYFKNTDLWIVMEYCGAGSVSDIMK 90
>gnl|CDD|173670 cd05579, STKc_MAST_like, Catalytic domain of Microtubule-associated
serine/threonine kinase-like proteins. Serine/Threonine
Kinases (STKs), Microtubule-associated serine/threonine
(MAST) kinase subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The MAST kinase subfamily is part of a larger
superfamily that includes the catalytic domains of other
protein STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. The MAST kinase subfamily
includes MAST kinases, MAST-like (MASTL) kinases, and
fungal kinases with similarity to Saccharomyces
cerevisiae Rim15 and Schizosaccharomyces pombe cek1.
MAST kinases contain an N-terminal domain of unknown
function, a central catalytic domain, and a C-terminal
PDZ domain that mediates protein-protein interactions.
MASTL kinases carry only a catalytic domain which
contains a long insert relative to other kinases. The
fungal kinases in this subfamily harbor other domains in
addition to a central catalytic domain, which also
contains an insert relative to MAST kinases like MASTL.
Rim15 contains a C-terminal signal receiver (REC) domain
while cek1 contains an N-terminal PAS domain. MAST
kinases are cytoskeletal associated kinases of unknown
function that are also expressed at neuromuscular
junctions and postsynaptic densities. The fungal
proteins Rim15 and cek1 are involved in the regulation
of meiosis and mitosis, respectively.
Length = 265
Score = 34.1 bits (79), Expect = 0.026
Identities = 23/79 (29%), Positives = 36/79 (45%), Gaps = 5/79 (6%)
Query: 81 YLKTKELLKEGNKVAIKNLKKS---RIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPH 137
+L K+ G+ AIK +KK+ R + +L E L ++VK + +
Sbjct: 10 FLAKKKST--GDIYAIKVIKKADMIRKNQVDQVLTERDILSQAQSPYVVKLYYSFQGKKN 67
Query: 138 CCLLTEYCPKGSLQDILEN 156
L+ EY P G L +LEN
Sbjct: 68 LYLVMEYLPGGDLASLLEN 86
Score = 26.8 bits (60), Expect = 6.9
Identities = 12/40 (30%), Positives = 18/40 (45%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILEN 58
L ++VK + + L+ EY P G L +LEN
Sbjct: 47 LSQAQSPYVVKLYYSFQGKKNLYLVMEYLPGGDLASLLEN 86
>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 = 33.8 bits (77), Expect = 0.034
Identities = 24/64 (37%), Positives = 35/64 (54%), Gaps = 2/64 (3%)
Query: 93 KVAIKNLK-KSRIDLTRPLLLELKRLKDL-HHDHLVKFIGACLDPPHCCLLTEYCPKGSL 150
KVA+K LK +R + L+ ELK + L H ++V +GAC ++TEYC G L
Sbjct: 69 KVAVKMLKPTARSSEKQALMSELKIMTHLGPHLNIVNLLGACTKSGPIYIITEYCFYGDL 128
Query: 151 QDIL 154
+ L
Sbjct: 129 VNYL 132
>gnl|CDD|132957 cd06626, STKc_MEKK4, Catalytic domain of the Protein
Serine/Threonine Kinase, MAP/ERK kinase kinase 4.
Serine/threonine kinases (STKs), MAP/ERK kinase kinase 4
(MEKK4) subfamily, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MEKK4 subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. MEKK4 is a mitogen-activated protein kinase
(MAPK) kinase kinase (MAPKKK or MKKK or MAP3K), that
phosphorylates and activates MAPK kinases (MAPKKs or
MKKs or MAP2Ks), which in turn phosphorylate and
activate MAPKs during signaling cascades that are
important in mediating cellular responses to
extracellular signals. MEKK4 activates the c-Jun
N-terminal kinase (JNK) and p38 MAPK signaling pathways
by directly activating their respective MAPKKs,
MKK4/MKK7 and MKK3/MKK6. JNK and p38 are collectively
known as stress-activated MAPKs, as they are activated
in response to a variety of environmental stresses and
pro-inflammatory cytokines. MEKK4 also plays roles in
the re-polarization of the actin cytoskeleton in
response to osmotic stress, in the proper closure of the
neural tube, in cardiovascular development, and in
immune responses.
Length = 264
Score = 33.9 bits (78), Expect = 0.035
Identities = 20/71 (28%), Positives = 38/71 (53%), Gaps = 2/71 (2%)
Query: 88 LKEGNKVAIK--NLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYC 145
L G +A+K ++ + + + E+K L+ L H +LVK+ G + + EYC
Sbjct: 22 LDTGELMAVKEIRIQDNDPKTIKEIADEMKVLELLKHPNLVKYYGVEVHREKVYIFMEYC 81
Query: 146 PKGSLQDILEN 156
G+L+++LE+
Sbjct: 82 SGGTLEELLEH 92
Score = 30.8 bits (70), Expect = 0.34
Identities = 14/40 (35%), Positives = 24/40 (60%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILEN 58
L+ L H +LVK+ G + + EYC G+L+++LE+
Sbjct: 53 LELLKHPNLVKYYGVEVHREKVYIFMEYCSGGTLEELLEH 92
>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 = 33.4 bits (77), Expect = 0.044
Identities = 23/67 (34%), Positives = 34/67 (50%)
Query: 88 LKEGNKVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPK 147
+ G VAIK +K D + E+ LK+ H ++V + G+ L ++ EYC
Sbjct: 25 IATGELVAIKVIKLEPGDDFEIIQQEISMLKECRHPNIVAYFGSYLRRDKLWIVMEYCGG 84
Query: 148 GSLQDIL 154
GSLQDI
Sbjct: 85 GSLQDIY 91
Score = 30.0 bits (68), Expect = 0.70
Identities = 15/38 (39%), Positives = 22/38 (57%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
LK+ H ++V + G+ L ++ EYC GSLQDI
Sbjct: 54 LKECRHPNIVAYFGSYLRRDKLWIVMEYCGGGSLQDIY 91
>gnl|CDD|132979 cd06648, STKc_PAK_II, Catalytic domain of the Protein
Serine/Threonine Kinase, Group II p21-activated kinase.
Serine/threonine kinases (STKs), p21-activated kinase
(PAK) subfamily, Group II, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The PAK subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. PAKs are Rho family GTPase-regulated kinases
that serve as important mediators in the function of
Cdc42 (cell division cycle 42) and Rac. PAKs from higher
eukaryotes are classified into two groups (I and II),
according to their biochemical and structural features.
Group II PAKs, also called non-conventional PAKs,
include PAK4, PAK5, and PAK6. Group II PAKs contain PBD
(p21-binding domain) and catalytic domains, but lack
other motifs found in group I PAKs, such as an AID
(autoinhibitory domain) and SH3 binding sites. Since
group II PAKs do not contain an obvious AID, they may be
regulated differently from group I PAKs. While group I
PAKs interact with the SH3 containing proteins Nck, Grb2
and PIX, no such binding has been demonstrated for group
II PAKs. Some known substrates of group II PAKs are also
substrates of group I PAKs such as Raf, BAD, LIMK and
GEFH1. Unique group II substrates include MARK/Par-1 and
PDZ-RhoGEF. Group II PAKs play important roles in
filopodia formation, neuron extension, cytoskeletal
organization, and cell survival.
Length = 285
Score = 33.6 bits (77), Expect = 0.044
Identities = 19/69 (27%), Positives = 36/69 (52%), Gaps = 6/69 (8%)
Query: 89 KEGNKVAIK--NLKKSRIDLTRPLLL-ELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYC 145
G +VA+K +L+K + R LL E+ ++D H ++V+ + L ++ E+
Sbjct: 42 STGRQVAVKKMDLRKQQ---RRELLFNEVVIMRDYQHPNIVEMYSSYLVGDELWVVMEFL 98
Query: 146 PKGSLQDIL 154
G+L DI+
Sbjct: 99 EGGALTDIV 107
>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 = 33.1 bits (75), Expect = 0.054
Identities = 27/82 (32%), Positives = 43/82 (52%), Gaps = 5/82 (6%)
Query: 89 KEGNKV--AIKNLKK-SRIDLTRPLLLELKRLKDL-HHDHLVKFIGACLDPPHCCLLTEY 144
K+G ++ AIK +K+ + D R EL+ L L HH +++ +GAC + L EY
Sbjct: 18 KDGLRMDAAIKRMKEYASKDDHRDFAGELEVLCKLGHHPNIINLLGACEHRGYLYLAIEY 77
Query: 145 CPKGSLQDILENEQ-FKLEPMF 165
P G+L D L + + +P F
Sbjct: 78 APHGNLLDFLRKSRVLETDPAF 99
Score = 32.4 bits (73), Expect = 0.11
Identities = 15/46 (32%), Positives = 24/46 (52%), Gaps = 1/46 (2%)
Query: 23 HHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQ-FKLEPMF 67
HH +++ +GAC + L EY P G+L D L + + +P F
Sbjct: 54 HHPNIINLLGACEHRGYLYLAIEYAPHGNLLDFLRKSRVLETDPAF 99
>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 = 33.0 bits (75), Expect = 0.057
Identities = 27/110 (24%), Positives = 47/110 (42%), Gaps = 10/110 (9%)
Query: 7 GRQVF--VPTAFYKLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLE 64
GRQ F + + L H ++V+ +G C L+T+ P GSL D + + L+
Sbjct: 49 GRQTFQEITDHMLAMGSLDHAYIVRLLGIC-PGASLQLVTQLSPLGSLLDHVRQHRDSLD 107
Query: 65 PMFKNSLMHDIVKFNGYLKTKELLKEGNKVAIKNLKKSRIDLTRPLLLEL 114
P + I K YL E +++ +NL I L ++++
Sbjct: 108 PQRLLNWCVQIAKGMYYL-------EEHRMVHRNLAARNILLKSDSIVQI 150
Score = 30.3 bits (68), Expect = 0.51
Identities = 14/44 (31%), Positives = 23/44 (52%), Gaps = 1/44 (2%)
Query: 120 LHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEP 163
L H ++V+ +G C L+T+ P GSL D + + L+P
Sbjct: 66 LDHAYIVRLLGIC-PGASLQLVTQLSPLGSLLDHVRQHRDSLDP 108
>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 = 32.9 bits (75), Expect = 0.057
Identities = 18/75 (24%), Positives = 36/75 (48%), Gaps = 6/75 (8%)
Query: 88 LKEGNKVAIK------NLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLL 141
+K G +A+K N + ++ L E++ + L+H H+++ +GA + H L
Sbjct: 22 VKTGTLMAVKQVTYVRNTSSEQEEVVEALRKEIRLMARLNHPHIIRMLGATCEDSHFNLF 81
Query: 142 TEYCPKGSLQDILEN 156
E+ GS+ +L
Sbjct: 82 VEWMAGGSVSHLLSK 96
Score = 27.9 bits (62), Expect = 3.3
Identities = 11/40 (27%), Positives = 21/40 (52%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILEN 58
+ L+H H+++ +GA + H L E+ GS+ +L
Sbjct: 57 MARLNHPHIIRMLGATCEDSHFNLFVEWMAGGSVSHLLSK 96
>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 = 32.8 bits (75), Expect = 0.060
Identities = 24/91 (26%), Positives = 40/91 (43%), Gaps = 9/91 (9%)
Query: 78 FNGYLKTKELLKEGNKVAIKNLKKSRIDLTRPLLLELKR----LKDLHHDHLVKFIGACL 133
F K E V +K L+K++ + L E +R + L H ++V+ +G C
Sbjct: 22 FLAKAKGIEEEGGETLVLVKALQKTKDE---NLQSEFRRELDMFRKLSHKNVVRLLGLCR 78
Query: 134 DP-PHCCLLTEYCPKGSLQDILENEQFKLEP 163
+ PH ++ EY G L+ L + K E
Sbjct: 79 EAEPH-YMILEYTDLGDLKQFLRATKSKDEK 108
Score = 27.8 bits (62), Expect = 3.4
Identities = 14/48 (29%), Positives = 24/48 (50%), Gaps = 2/48 (4%)
Query: 19 LKDLHHDHLVKFIGACLDP-PHCCLLTEYCPKGSLQDILENEQFKLEP 65
+ L H ++V+ +G C + PH ++ EY G L+ L + K E
Sbjct: 62 FRKLSHKNVVRLLGLCREAEPH-YMILEYTDLGDLKQFLRATKSKDEK 108
>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 = 32.7 bits (74), Expect = 0.068
Identities = 25/88 (28%), Positives = 40/88 (45%), Gaps = 3/88 (3%)
Query: 85 KELLKEGNKVAIKNLKKS-RIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTE 143
K LK+ VA+K K+ +L L E + LK H ++VK IG C ++ E
Sbjct: 13 KGTLKDKTPVAVKTCKEDLPQELKIKFLSEARILKQYDHPNIVKLIGVCTQRQPIYIVME 72
Query: 144 YCPKGSLQDIL--ENEQFKLEPMFKNSL 169
P G L + ++ K + + K +L
Sbjct: 73 LVPGGDFLSFLRKKKDELKTKQLVKFAL 100
Score = 27.3 bits (60), Expect = 4.4
Identities = 25/98 (25%), Positives = 40/98 (40%), Gaps = 15/98 (15%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL--ENEQFKLEPMFKNSLMHDIV 76
LK H ++VK IG C ++ E P G L + ++ K + + K +L D
Sbjct: 46 LKQYDHPNIVKLIGVCTQRQPIYIVMELVPGGDFLSFLRKKKDELKTKQLVKFAL--DAA 103
Query: 77 KFNGYLKTKE-----------LLKEGNKVAIKNLKKSR 103
YL++K L+ E N + I + SR
Sbjct: 104 AGMAYLESKNCIHRDLAARNCLVGENNVLKISDFGMSR 141
>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 = 32.9 bits (75), Expect = 0.075
Identities = 24/65 (36%), Positives = 37/65 (56%), Gaps = 5/65 (7%)
Query: 94 VAIKNLKK-SRIDLTRPLLLELKRLKDL-HHDHLVKFIGACLDP--PHCCLLTEYCPKGS 149
VA+K LK+ + + L+ ELK L + HH ++V +GAC P P ++ EYC G+
Sbjct: 40 VAVKMLKEGATASEYKALMTELKILIHIGHHLNVVNLLGACTKPGGP-LMVIVEYCKFGN 98
Query: 150 LQDIL 154
L + L
Sbjct: 99 LSNYL 103
>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 = 32.7 bits (74), Expect = 0.083
Identities = 30/93 (32%), Positives = 48/93 (51%), Gaps = 6/93 (6%)
Query: 78 FNGYLKTKELLKEGNKV--AIKNLKK-SRIDLTRPLLLELKRLKDL-HHDHLVKFIGACL 133
F LK + + K+G ++ AIK +K+ + D R EL+ L L HH +++ +GAC
Sbjct: 20 FGQVLKAR-IKKDGLRMDAAIKRMKEYASKDDHRDFAGELEVLCKLGHHPNIINLLGACE 78
Query: 134 DPPHCCLLTEYCPKGSLQDILENEQ-FKLEPMF 165
+ L EY P G+L D L + + +P F
Sbjct: 79 HRGYLYLAIEYAPHGNLLDFLRKSRVLETDPAF 111
Score = 31.1 bits (70), Expect = 0.30
Identities = 15/46 (32%), Positives = 24/46 (52%), Gaps = 1/46 (2%)
Query: 23 HHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQ-FKLEPMF 67
HH +++ +GAC + L EY P G+L D L + + +P F
Sbjct: 66 HHPNIINLLGACEHRGYLYLAIEYAPHGNLLDFLRKSRVLETDPAF 111
>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 = 32.4 bits (74), Expect = 0.085
Identities = 24/85 (28%), Positives = 38/85 (44%), Gaps = 3/85 (3%)
Query: 22 LHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHDIVKFNGY 81
L H HLVK G C+ + ++ EY G L L E+ + +K + + Y
Sbjct: 58 LSHKHLVKLYGVCVRDEN-IMVEEYVKFGPLDVFLHREKNNVSLHWKLDVAKQLASALHY 116
Query: 82 LKTKELLKEGNKVAIKNLKKSRIDL 106
L+ K+L+ V KN+ +R L
Sbjct: 117 LEDKKLVH--GNVCGKNILVARYGL 139
Score = 28.2 bits (63), Expect = 2.2
Identities = 14/38 (36%), Positives = 18/38 (47%), Gaps = 1/38 (2%)
Query: 120 LHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENE 157
L H HLVK G C+ + ++ EY G L L E
Sbjct: 58 LSHKHLVKLYGVCVRDEN-IMVEEYVKFGPLDVFLHRE 94
>gnl|CDD|132976 cd06645, STKc_MAP4K3, Catalytic domain of the Protein
Serine/Threonine Kinase, Mitogen-activated protein
kinase kinase kinase kinase 3. Serine/threonine kinases
(STKs), mitogen-activated protein kinase (MAPK) kinase
kinase kinase 3 (MAPKKKK3 or MAP4K3) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MAP4K3 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 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. MAP4K3 plays a role in the
nutrient-responsive pathway of mTOR (mammalian target of
rapamycin) signaling. MAP4K3 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. mTOR regulates ribosome
biogenesis and protein translation, and is frequently
deregulated in cancer.
Length = 267
Score = 32.7 bits (74), Expect = 0.086
Identities = 15/41 (36%), Positives = 23/41 (56%)
Query: 113 ELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDI 153
E+ +KD H ++V + G+ L + E+C GSLQDI
Sbjct: 56 EIIMMKDCKHSNIVAYFGSYLRRDKLWICMEFCGGGSLQDI 96
Score = 31.6 bits (71), Expect = 0.18
Identities = 14/37 (37%), Positives = 21/37 (56%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDI 55
+KD H ++V + G+ L + E+C GSLQDI
Sbjct: 60 MKDCKHSNIVAYFGSYLRRDKLWICMEFCGGGSLQDI 96
>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 = 32.6 bits (74), Expect = 0.095
Identities = 19/80 (23%), Positives = 36/80 (45%), Gaps = 9/80 (11%)
Query: 94 VAIKNL-----KKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKG 148
VA+K L K +R D + + + + RLKD ++++ + C+ C++TEY G
Sbjct: 49 VAVKMLREDANKNARNDFLKEIKI-MSRLKD---PNIIRLLAVCITSDPLCMITEYMENG 104
Query: 149 SLQDILENEQFKLEPMFKNS 168
L L + + +
Sbjct: 105 DLNQFLSRHEPQEAAEKADV 124
Score = 27.6 bits (61), Expect = 3.5
Identities = 11/53 (20%), Positives = 23/53 (43%), Gaps = 3/53 (5%)
Query: 18 KLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNS 70
+LKD ++++ + C+ C++TEY G L L + + +
Sbjct: 75 RLKD---PNIIRLLAVCITSDPLCMITEYMENGDLNQFLSRHEPQEAAEKADV 124
>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 = 32.2 bits (73), Expect = 0.10
Identities = 25/67 (37%), Positives = 36/67 (53%), Gaps = 9/67 (13%)
Query: 91 GNKVAIKNLKKSRIDLT-RPLLLELKRLKDLHHDHLVKFIGACLDPPHCCL--LTEYCPK 147
G KVA+KN+K D+T + L E + LHH +LV+ +G L H L + E K
Sbjct: 29 GQKVAVKNIK---CDVTAQAFLEETAVMTKLHHKNLVRLLGVIL---HNGLYIVMELMSK 82
Query: 148 GSLQDIL 154
G+L + L
Sbjct: 83 GNLVNFL 89
>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 = 32.2 bits (73), Expect = 0.11
Identities = 18/67 (26%), Positives = 39/67 (58%), Gaps = 1/67 (1%)
Query: 93 KVAIKNLKKS-RIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQ 151
+V +K L+ S D L E++ ++L+H ++++ +G C++ L+ E+CP G L+
Sbjct: 24 RVVVKELRASATPDEQLLFLQEVQPYRELNHPNVLQCLGQCIESIPYLLVLEFCPLGDLK 83
Query: 152 DILENEQ 158
+ L + +
Sbjct: 84 NYLRSNR 90
Score = 29.1 bits (65), Expect = 1.1
Identities = 11/61 (18%), Positives = 32/61 (52%), Gaps = 4/61 (6%)
Query: 20 KDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKL----EPMFKNSLMHDI 75
++L+H ++++ +G C++ L+ E+CP G L++ L + + + + + ++
Sbjct: 50 RELNHPNVLQCLGQCIESIPYLLVLEFCPLGDLKNYLRSNRGMVAQMAQKDVLQRMACEV 109
Query: 76 V 76
Sbjct: 110 A 110
>gnl|CDD|132977 cd06646, STKc_MAP4K5, Catalytic domain of the Protein
Serine/Threonine Kinase, Mitogen-activated protein
kinase kinase kinase kinase 5. Serine/threonine kinases
(STKs), mitogen-activated protein kinase (MAPK) kinase
kinase kinase 5 (MAPKKKK5 or MAP4K5) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MAP4K5 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 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. MAP4K5, also called germinal
center kinase-related enzyme (GCKR), has been shown to
activate the MAPK c-Jun N-terminal kinase (JNK). MAP4K5
also facilitates Wnt signaling in B cells, and may
therefore be implicated in the control of cell fate,
proliferation, and polarity.
Length = 267
Score = 32.3 bits (73), Expect = 0.11
Identities = 21/66 (31%), Positives = 32/66 (48%)
Query: 88 LKEGNKVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPK 147
L G A+K +K D + E+ +K+ H ++V + G+ L + EYC
Sbjct: 31 LHTGELAAVKIIKLEPGDDFSLIQQEIFMVKECKHCNIVAYFGSYLSREKLWICMEYCGG 90
Query: 148 GSLQDI 153
GSLQDI
Sbjct: 91 GSLQDI 96
Score = 30.4 bits (68), Expect = 0.45
Identities = 14/39 (35%), Positives = 22/39 (56%)
Query: 17 YKLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDI 55
+ +K+ H ++V + G+ L + EYC GSLQDI
Sbjct: 58 FMVKECKHCNIVAYFGSYLSREKLWICMEYCGGGSLQDI 96
>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 = 32.3 bits (73), Expect = 0.11
Identities = 22/86 (25%), Positives = 38/86 (44%), Gaps = 6/86 (6%)
Query: 78 FNGYLKTKELLKEGNKVAIKNLKKS-RIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPP 136
F+G L+ + VA+K+ +++ DL L E + LK H ++V+ IG C
Sbjct: 12 FSGRLRA-----DNTPVAVKSCRETLPPDLKAKFLQEARILKQYSHPNIVRLIGVCTQKQ 66
Query: 137 HCCLLTEYCPKGSLQDILENEQFKLE 162
++ E G L E +L+
Sbjct: 67 PIYIVMELVQGGDFLTFLRTEGPRLK 92
Score = 27.7 bits (61), Expect = 3.1
Identities = 21/96 (21%), Positives = 36/96 (37%), Gaps = 11/96 (11%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHDIVKF 78
LK H ++V+ IG C ++ E G L E +L+ ++ +
Sbjct: 47 LKQYSHPNIVRLIGVCTQKQPIYIVMELVQGGDFLTFLRTEGPRLKVKELIQMVENAAAG 106
Query: 79 NGYLKTKE-----------LLKEGNKVAIKNLKKSR 103
YL++K L+ E N + I + SR
Sbjct: 107 MEYLESKHCIHRDLAARNCLVTEKNVLKISDFGMSR 142
>gnl|CDD|132965 cd06634, STKc_TAO2, Catalytic domain of the Protein
Serine/Threonine Kinase, Thousand-and-one amino acids 2.
Serine/threonine kinases (STKs), thousand-and-one amino
acids 2 (TAO2) subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The TAO subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. TAO proteins possess mitogen-activated protein
kinase (MAPK) kinase kinase (MAPKKK or MAP3K or MKKK)
activity. MAPK signaling cascades are important in
mediating cellular responses to extracellular signals.
Human TAO2 is also known as prostate-derived Ste20-like
kinase (PSK) and was identified in a screen for
overexpressed RNAs in prostate cancer. TAO2 activates
both p38 and c-Jun N-terminal kinase (JNK), by
phosphorylating and activating the respective MAP/ERK
kinases (MEKs, also known as MKKs or MAPKKs), MEK3/MEK6
and MKK4/MKK7. TAO2 contains a long C-terminal extension
with autoinhibitory segments. It is activated by the
release of this inhibition and the phosphorylation of
its activation loop serine. TAO2 functions as a
regulator of actin cytoskeletal and microtubule
organization. In addition, it regulates the transforming
growth factor-activated kinase 1 (TAK1), which is a
MAPKKK that plays an essential role in the signaling
pathways of tumor necrosis factor (TNF), interleukin 1
(IL-1), and Toll-like receptor (TLR).
Length = 308
Score = 32.3 bits (73), Expect = 0.11
Identities = 24/96 (25%), Positives = 47/96 (48%), Gaps = 8/96 (8%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHDIVKF 78
L+ L H + +++ G L L+ EYC GS D+LE + L+ + ++ H ++
Sbjct: 69 LQKLRHPNTIQYRGCYLREHTAWLVMEYC-LGSASDLLEVHKKPLQEVEIAAVTHGALQG 127
Query: 79 NGYLKTKELLKEGNKVAIKNLKKSRIDLTRPLLLEL 114
YL + ++ +++K I L+ P L++L
Sbjct: 128 LAYLHSHNMIH-------RDVKAGNILLSEPGLVKL 156
Score = 28.9 bits (64), Expect = 1.4
Identities = 21/74 (28%), Positives = 38/74 (51%), Gaps = 4/74 (5%)
Query: 94 VAIKNLK---KSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSL 150
VAIK + K + + ++ E++ L+ L H + +++ G L L+ EYC GS
Sbjct: 43 VAIKKMSYSGKQSNEKWQDIIKEVRFLQKLRHPNTIQYRGCYLREHTAWLVMEYC-LGSA 101
Query: 151 QDILENEQFKLEPM 164
D+LE + L+ +
Sbjct: 102 SDLLEVHKKPLQEV 115
>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 = 32.3 bits (73), Expect = 0.11
Identities = 24/73 (32%), Positives = 40/73 (54%), Gaps = 3/73 (4%)
Query: 94 VAIKNLKKSRIDLT-RPLLLELKRLKDL-HHDHLVKFIGACLDPPH-CCLLTEYCPKGSL 150
VA+K LK+ R L+ ELK L + HH ++V +GAC P ++ E+C G+L
Sbjct: 40 VAVKMLKEGATHSEHRALMSELKILIHIGHHLNVVNLLGACTKPGGPLMVIVEFCKFGNL 99
Query: 151 QDILENEQFKLEP 163
+ L +++ + P
Sbjct: 100 SNYLRSKRGEFVP 112
Score = 26.5 bits (58), Expect = 8.0
Identities = 13/44 (29%), Positives = 25/44 (56%), Gaps = 1/44 (2%)
Query: 23 HHDHLVKFIGACLDPPH-CCLLTEYCPKGSLQDILENEQFKLEP 65
HH ++V +GAC P ++ E+C G+L + L +++ + P
Sbjct: 69 HHLNVVNLLGACTKPGGPLMVIVEFCKFGNLSNYLRSKRGEFVP 112
>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 = 32.0 bits (73), Expect = 0.13
Identities = 18/62 (29%), Positives = 29/62 (46%), Gaps = 1/62 (1%)
Query: 93 KVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQD 152
VAIK +++ + + E K + L H +LV+ G C ++TEY G L +
Sbjct: 30 DVAIKMIREGAMS-EDDFIEEAKVMMKLSHPNLVQLYGVCTKQRPIFIVTEYMANGCLLN 88
Query: 153 IL 154
L
Sbjct: 89 YL 90
Score = 29.3 bits (66), Expect = 1.0
Identities = 17/70 (24%), Positives = 31/70 (44%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHDIVKF 78
+ L H +LV+ G C ++TEY G L + L + KL + + D+ +
Sbjct: 53 MMKLSHPNLVQLYGVCTKQRPIFIVTEYMANGCLLNYLRERKGKLGTEWLLDMCSDVCEA 112
Query: 79 NGYLKTKELL 88
YL++ +
Sbjct: 113 MEYLESNGFI 122
>gnl|CDD|132938 cd06607, STKc_TAO, Catalytic domain of the Protein Serine/Threonine
Kinase, Thousand-and-one amino acids proteins.
Serine/threonine kinases (STKs), thousand-and-one amino
acids (TAO) subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The TAO subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. TAO proteins possess mitogen-activated protein
kinase (MAPK) kinase kinase (MAPKKK or MAP3K or MKKK)
activity. They activate the MAPKs, p38 and c-Jun
N-terminal kinase (JNK), by phosphorylating and
activating the respective MAP/ERK kinases (MEKs, also
known as MKKs or MAPKKs), MEK3/MEK6 and MKK4/MKK7. MAPK
signaling cascades are important in mediating cellular
responses to extracellular signals. Vertebrates contain
three TAO subfamily members, named TAO1, TAO2, and TAO3.
Length = 307
Score = 32.1 bits (73), Expect = 0.13
Identities = 21/65 (32%), Positives = 34/65 (52%), Gaps = 4/65 (6%)
Query: 94 VAIKNLK---KSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSL 150
VAIK + K + + ++ E++ L+ L H + +++ G L L+ EYC GS
Sbjct: 43 VAIKKMSYSGKQSNEKWQDIIKEVRFLQQLRHPNTIEYKGCYLREHTAWLVMEYC-LGSA 101
Query: 151 QDILE 155
DILE
Sbjct: 102 SDILE 106
Score = 27.1 bits (60), Expect = 5.0
Identities = 15/39 (38%), Positives = 21/39 (53%), Gaps = 1/39 (2%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILE 57
L+ L H + +++ G L L+ EYC GS DILE
Sbjct: 69 LQQLRHPNTIEYKGCYLREHTAWLVMEYC-LGSASDILE 106
>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 = 31.7 bits (72), Expect = 0.16
Identities = 17/67 (25%), Positives = 30/67 (44%)
Query: 90 EGNKVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGS 149
E + D+ + L E++ LKDL H ++V+++G + + EY P GS
Sbjct: 35 ELPATIAGRHDSRQKDMVKALRSEIETLKDLDHLNIVQYLGFETTEEYLSIFLEYVPGGS 94
Query: 150 LQDILEN 156
+ L
Sbjct: 95 IGSCLRT 101
Score = 30.1 bits (68), Expect = 0.50
Identities = 18/70 (25%), Positives = 32/70 (45%), Gaps = 1/70 (1%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHDIVKF 78
LKDL H ++V+++G + + EY P GS+ L + E +++
Sbjct: 62 LKDLDHLNIVQYLGFETTEEYLSIFLEYVPGGSIGSCLRTYG-RFEEQLVRFFTEQVLEG 120
Query: 79 NGYLKTKELL 88
YL +K +L
Sbjct: 121 LAYLHSKGIL 130
>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 = 31.5 bits (71), Expect = 0.19
Identities = 21/66 (31%), Positives = 30/66 (45%), Gaps = 9/66 (13%)
Query: 94 VAIKNLKKSRIDLTRP-----LLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKG 148
VAIK LK D+ P E + +LHH ++V +G C+L EY +G
Sbjct: 37 VAIKTLK----DINNPQQWGEFQQEASLMAELHHPNIVCLLGVVTQEQPVCMLFEYLNQG 92
Query: 149 SLQDIL 154
L + L
Sbjct: 93 DLHEFL 98
Score = 29.6 bits (66), Expect = 0.90
Identities = 12/38 (31%), Positives = 20/38 (52%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
+ +LHH ++V +G C+L EY +G L + L
Sbjct: 61 MAELHHPNIVCLLGVVTQEQPVCMLFEYLNQGDLHEFL 98
>gnl|CDD|173663 cd05572, STKc_cGK_PKG, Catalytic domain of the Protein
Serine/Threonine Kinase, cGMP-dependent protein kinase.
Serine/Threonine Kinases (STKs), cGMP-dependent protein
kinase (cGK or PKG) subfamily, catalytic (c) domain.
STKs catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The cGK subfamily is part of a larger
superfamily that includes the catalytic domains of other
protein STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. Mammals have two cGK isoforms
from different genes, cGKI and cGKII. cGKI exists as two
splice variants, cGKI-alpha and cGKI-beta. cGK consists
of an N-terminal regulatory domain containing a
dimerization and an autoinhibitory pseudosubstrate
region, two cGMP-binding domains, and a C-terminal
catalytic domain. Binding of cGMP to both binding sites
releases the inhibition of the catalytic center by the
pseudosubstrate region, allowing autophosphorylation and
activation of the kinase. cGKI is a soluble protein
expressed in all smooth muscles, platelets, cerebellum,
and kidney. It is also expressed at lower concentrations
in other tissues. cGKII is a membrane-bound protein that
is most abundantly expressed in the intestine. It is
also present in the brain nuclei, adrenal cortex,
kidney, lung, and prostate. cGKI is involved in the
regulation of smooth muscle tone, smooth cell
proliferation, and platelet activation. cGKII plays a
role in the regulation of secretion, such as renin
secretion by the kidney and aldosterone secretion by the
adrenal. It also regulates bone growth and the circadian
rhythm.
Length = 262
Score = 31.1 bits (71), Expect = 0.23
Identities = 19/68 (27%), Positives = 30/68 (44%), Gaps = 3/68 (4%)
Query: 90 EGNKVAIKNLKKSRI---DLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCP 146
+ A+K +KK I + E + L++ +H +VK D + +L EYC
Sbjct: 17 KNRTFALKCVKKRHIVETGQQEHIFSEKEILEECNHPFIVKLYRTFKDKKYIYMLMEYCL 76
Query: 147 KGSLQDIL 154
G L IL
Sbjct: 77 GGELWTIL 84
Score = 26.4 bits (59), Expect = 9.5
Identities = 13/38 (34%), Positives = 19/38 (50%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
L++ +H +VK D + +L EYC G L IL
Sbjct: 47 LEECNHPFIVKLYRTFKDKKYIYMLMEYCLGGELWTIL 84
>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 = 31.1 bits (70), Expect = 0.24
Identities = 23/73 (31%), Positives = 41/73 (56%), Gaps = 4/73 (5%)
Query: 85 KELLKEGNKVAIKNLKK--SRIDLTRPLLLELKRLKDL-HHDHLVKFIGACLDPPHCCLL 141
K+ KE VA+K LK + DL+ L+ E++ +K + H +++ +GAC ++
Sbjct: 41 KDKPKEAVTVAVKMLKDDATEKDLS-DLVSEMEMMKMIGKHKNIINLLGACTQDGPLYVI 99
Query: 142 TEYCPKGSLQDIL 154
EY KG+L++ L
Sbjct: 100 VEYASKGNLREYL 112
>gnl|CDD|173691 cd05600, STKc_Sid2p_Dbf2p, Catalytic domain of Fungal Sid2p- and
Dbf2p-like Protein Serine/Threonine Kinases.
Serine/Threonine Kinases (STKs), ROCK- and NDR-like
subfamily, fungal Sid2p- and Dbf2p-like proteins,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Sid2p- and
Dbf2p-like group 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 group contains fungal kinases including
Schizosaccharomyces pombe Sid2p and Saccharomyces
cerevisiae Dbf2p. Group members show similarity to NDR
kinases in that they contain an N-terminal regulatory
(NTR) domain and an insert within the catalytic domain
that contains an auto-inhibitory sequence. Sid2p plays a
crucial role in the septum initiation network (SIN) and
in the initiation of cytokinesis. Dbf2p is important in
regulating the mitotic exit network (MEN) and in
cytokinesis.
Length = 333
Score = 31.2 bits (71), Expect = 0.25
Identities = 22/66 (33%), Positives = 32/66 (48%), Gaps = 3/66 (4%)
Query: 94 VAIKNLKKSRI---DLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSL 150
VA+K +KKS + + R +L E L + LVK + A D + L EY P G
Sbjct: 29 VALKRMKKSLLFKLNEVRHVLTERDILTTTKSEWLVKLLYAFQDDEYLYLAMEYVPGGDF 88
Query: 151 QDILEN 156
+ +L N
Sbjct: 89 RTLLNN 94
>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 = 31.0 bits (70), Expect = 0.27
Identities = 20/62 (32%), Positives = 30/62 (48%), Gaps = 1/62 (1%)
Query: 94 VAIKNLKK-SRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQD 152
VA+K LK+ + D+ E + + H ++VK +G C CLL EY G L +
Sbjct: 38 VAVKMLKEEASADMQADFQREAALMAEFDHPNIVKLLGVCAVGKPMCLLFEYMAYGDLNE 97
Query: 153 IL 154
L
Sbjct: 98 FL 99
Score = 28.6 bits (64), Expect = 1.6
Identities = 19/78 (24%), Positives = 29/78 (37%), Gaps = 4/78 (5%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHDIVKF 78
+ + H ++VK +G C CLL EY G L + L + P + SL H
Sbjct: 62 MAEFDHPNIVKLLGVCAVGKPMCLLFEYMAYGDLNEFLRHRS----PRAQCSLSHSTSSA 117
Query: 79 NGYLKTKELLKEGNKVAI 96
L ++ I
Sbjct: 118 RKCGLNPLPLSCTEQLCI 135
>gnl|CDD|132982 cd06651, STKc_MEKK3, Catalytic domain of the Protein
Serine/Threonine Kinase, MAP/ERK kinase kinase 3.
Serine/threonine kinases (STKs), MAP/ERK kinase kinase 3
(MEKK3) subfamily, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MEKK3 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. MEKK3 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.
MEKK3 plays an essential role in embryonic angiogenesis
and early heart development. In addition, MEKK3 is
involved in interleukin-1 receptor and Toll-like
receptor 4 signaling. It is also a specific regulator of
the proinflammatory cytokines IL-6 and GM-CSF in some
immune cells. MEKK3 also regulates calcineurin, which
plays a critical role in T cell activation, apoptosis,
skeletal myocyte differentiation, and cardiac
hypertrophy.
Length = 266
Score = 30.8 bits (69), Expect = 0.34
Identities = 16/45 (35%), Positives = 26/45 (57%), Gaps = 2/45 (4%)
Query: 113 ELKRLKDLHHDHLVKFIGACLDPPHCCL--LTEYCPKGSLQDILE 155
E++ LK+L H+ +V++ G D L EY P GS++D L+
Sbjct: 54 EIQLLKNLQHERIVQYYGCLRDRAEKTLTIFMEYMPGGSVKDQLK 98
Score = 28.5 bits (63), Expect = 2.0
Identities = 15/41 (36%), Positives = 23/41 (56%), Gaps = 2/41 (4%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCL--LTEYCPKGSLQDILE 57
LK+L H+ +V++ G D L EY P GS++D L+
Sbjct: 58 LKNLQHERIVQYYGCLRDRAEKTLTIFMEYMPGGSVKDQLK 98
>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 = 30.7 bits (69), Expect = 0.41
Identities = 21/66 (31%), Positives = 38/66 (57%), Gaps = 4/66 (6%)
Query: 93 KVAIKNLKK--SRIDLTRPLLLELKRLKDL-HHDHLVKFIGACLDPPHCCLLTEYCPKGS 149
KVA+K LK + DL+ L+ E++ +K + H +++ +GAC ++ EY KG+
Sbjct: 52 KVAVKMLKSDATEKDLS-DLISEMEMMKMIGKHKNIINLLGACTQDGPLYVIVEYASKGN 110
Query: 150 LQDILE 155
L++ L
Sbjct: 111 LREYLR 116
>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 = 30.2 bits (69), Expect = 0.49
Identities = 21/88 (23%), Positives = 39/88 (44%), Gaps = 10/88 (11%)
Query: 91 GNKVAIKNLKKSR-------IDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTE 143
G VAIK +K I+ T L E+K L++L H +++ + + L+ E
Sbjct: 25 GRIVAIKKIKLGERKEAKDGINFT--ALREIKLLQELKHPNIIGLLDVFGHKSNINLVFE 82
Query: 144 YCPKGSLQDILENEQFKLEPMFKNSLMN 171
+ L+ +++++ L P S M
Sbjct: 83 FME-TDLEKVIKDKSIVLTPADIKSYML 109
>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 = 30.1 bits (68), Expect = 0.50
Identities = 11/45 (24%), Positives = 21/45 (46%)
Query: 111 LLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILE 155
++E+ L + H ++V A +L E+C G+L I+
Sbjct: 50 MVEIDILSECKHPNIVGLYEAYFYENKLWILIEFCDGGALDSIML 94
Score = 28.2 bits (63), Expect = 2.1
Identities = 10/39 (25%), Positives = 17/39 (43%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILE 57
L + H ++V A +L E+C G+L I+
Sbjct: 56 LSECKHPNIVGLYEAYFYENKLWILIEFCDGGALDSIML 94
>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 = 30.2 bits (68), Expect = 0.53
Identities = 18/70 (25%), Positives = 29/70 (41%), Gaps = 8/70 (11%)
Query: 93 KVAIKNLKKSRIDLT--RPLLLELKRLKDLHHDHLVKFIGACLD------PPHCCLLTEY 144
KVA+K +K + L E +KD H +++K IG C + P ++ +
Sbjct: 29 KVAVKTMKLDIHTYSEIEEFLSEAACMKDFDHPNVMKLIGVCFEASSLQKIPKPMVILPF 88
Query: 145 CPKGSLQDIL 154
G L L
Sbjct: 89 MKHGDLHSFL 98
Score = 26.3 bits (58), Expect = 9.6
Identities = 19/83 (22%), Positives = 32/83 (38%), Gaps = 15/83 (18%)
Query: 19 LKDLHHDHLVKFIGACLD------PPHCCLLTEYCPKGSLQDIL-------ENEQFKLEP 65
+KD H +++K IG C + P ++ + G L L E+ L+
Sbjct: 55 MKDFDHPNVMKLIGVCFEASSLQKIPKPMVILPFMKHGDLHSFLLYSRLGGLPEKLPLQT 114
Query: 66 MFKNSLMHDIVKFNGYLKTKELL 88
+ K M DI YL + +
Sbjct: 115 LLK--FMVDIALGMEYLSNRNFI 135
>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 = 30.0 bits (68), Expect = 0.60
Identities = 17/78 (21%), Positives = 33/78 (42%), Gaps = 1/78 (1%)
Query: 78 FNGYLKTKELLKEGNKVAIKNL-KKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPP 136
+ G K + +VAIK + + + + L E +K+ + H+V+ +G
Sbjct: 23 YEGLAKGVVKGEPETRVAIKTVNENASMRERIEFLNEASVMKEFNCHHVVRLLGVVSTGQ 82
Query: 137 HCCLLTEYCPKGSLQDIL 154
++ E KG L+ L
Sbjct: 83 PTLVVMELMAKGDLKSYL 100
>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 = 29.9 bits (67), Expect = 0.61
Identities = 25/96 (26%), Positives = 43/96 (44%), Gaps = 6/96 (6%)
Query: 15 AFYKLKDL----HHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNS 70
AF++ L H HL G C+ ++ E+ G L L E+ ++ +K +
Sbjct: 62 AFFETASLMSQVSHIHLAFVHGVCVRGSENIMVEEFVEHGPLDVCLRKEKGRVPVAWKIT 121
Query: 71 LMHDIVKFNGYLKTKELLKEGNKVAIKNLKKSRIDL 106
+ + YL+ K L+ GN V KN+ +R+ L
Sbjct: 122 VAQQLASALSYLEDKNLV-HGN-VCAKNILLARLGL 155
>gnl|CDD|173762 cd08222, STKc_Nek11, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 11. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 11 (Nek11)
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
Nek11 subfamily is one of a family of 11 different Neks
(Nek1-11) that are involved in cell cycle control. The
Nek family is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. Nek11 is involved, through direct
phosphorylation, in regulating the degradation of Cdc25A
(Cell Division Cycle 25 homolog A), which plays a role
in cell cycle progression and in activating cyclin
dependent kinases. Nek11 is activated by CHK1
(CHeckpoint Kinase 1) and may be involved in the G2/M
checkpoint. Nek11 may also play a role in the S-phase
checkpoint as well as in DNA replication and genotoxic
stress responses.
Length = 260
Score = 29.9 bits (67), Expect = 0.63
Identities = 16/44 (36%), Positives = 22/44 (50%)
Query: 112 LELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILE 155
E + L L H +VKF + L+ C++TEYC L LE
Sbjct: 51 QEAQLLSKLDHPAIVKFHASFLERDAFCIITEYCEGRDLDCKLE 94
Score = 28.4 bits (63), Expect = 2.2
Identities = 15/39 (38%), Positives = 20/39 (51%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILE 57
L L H +VKF + L+ C++TEYC L LE
Sbjct: 56 LSKLDHPAIVKFHASFLERDAFCIITEYCEGRDLDCKLE 94
>gnl|CDD|173757 cd08217, STKc_Nek2, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 2. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 2 (Nek2) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek2 subfamily is
one of a family of 11 different Neks (Nek1-11) that are
involved in cell cycle control. The Nek family is part
of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. The Nek2
subfamily includes Aspergillus nidulans NIMA kinase, the
founding member of the Nek family, which was identified
in a screen for cell cycle mutants prevented from
entering mitosis. NIMA is essential for mitotic entry
and progression through mitosis, and its degradation is
essential for mitotic exit. NIMA is involved in nuclear
membrane fission. Vertebrate Nek2 is a cell
cycle-regulated STK, localized in centrosomes and
kinetochores, that regulates centrosome splitting at the
G2/M phase. It also interacts with other mitotic kinases
such as Polo-like kinase 1 and may play a role in
spindle checkpoint. An increase in the expression of the
human NEK2 gene is strongly associated with the
progression of non-Hodgkin lymphoma.
Length = 265
Score = 29.9 bits (68), Expect = 0.63
Identities = 13/49 (26%), Positives = 27/49 (55%), Gaps = 2/49 (4%)
Query: 110 LLLELKRLKDLHHDHLVKFIGACLDPPHCCL--LTEYCPKGSLQDILEN 156
L+ E+ L++L H ++V++ +D + L + EYC G L +++
Sbjct: 46 LVSEVNILRELKHPNIVRYYDRIIDRSNQTLYIVMEYCEGGDLAQLIQK 94
Score = 28.8 bits (65), Expect = 1.4
Identities = 11/42 (26%), Positives = 23/42 (54%), Gaps = 2/42 (4%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCL--LTEYCPKGSLQDILEN 58
L++L H ++V++ +D + L + EYC G L +++
Sbjct: 53 LRELKHPNIVRYYDRIIDRSNQTLYIVMEYCEGGDLAQLIQK 94
>gnl|CDD|132989 cd06658, STKc_PAK5, Catalytic domain of the Protein
Serine/Threonine Kinase, p21-activated kinase 5.
Serine/threonine kinases (STKs), p21-activated kinase
(PAK) 5, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The PAK
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. PAKs are Rho family GTPase-regulated kinases
that serve as important mediators in the function of
Cdc42 (cell division cycle 42) and Rac. PAKs from higher
eukaryotes are classified into two groups (I and II),
according to their biochemical and structural features.
PAK5 belongs to group II. Group II PAKs contain a PBD
(p21-binding domain) and a C-terminal catalytic domain,
but do not harbor an AID (autoinhibitory domain) or SH3
binding sites. PAK5 is mainly expressed in the brain. It
is not required for viability, but together with PAK6,
it is required for normal levels of locomotion and
activity, and for learning and memory. PAK5 cooperates
with Inca (induced in neural crest by AP2) in the
regulation of cell adhesion and cytoskeletal
organization in the embryo and in neural crest cells
during craniofacial development. PAK5 may also play a
role in controlling the signaling of Raf-1, an effector
of Ras, at the mitochondria.
Length = 292
Score = 30.0 bits (67), Expect = 0.70
Identities = 17/72 (23%), Positives = 35/72 (48%)
Query: 91 GNKVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSL 150
G +VA+K + + L E+ ++D HH+++V + L ++ E+ G+L
Sbjct: 47 GKQVAVKKMDLRKQQRRELLFNEVVIMRDYHHENVVDMYNSYLVGDELWVVMEFLEGGAL 106
Query: 151 QDILENEQFKLE 162
DI+ + + E
Sbjct: 107 TDIVTHTRMNEE 118
>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 = 29.6 bits (66), Expect = 0.86
Identities = 20/63 (31%), Positives = 34/63 (53%), Gaps = 2/63 (3%)
Query: 94 VAIKNLKKSRIDLT-RPLLLELKRLKDL-HHDHLVKFIGACLDPPHCCLLTEYCPKGSLQ 151
VA+K LK D L+ E++ +K + H +++ +GAC +L EY KG+L+
Sbjct: 47 VAVKMLKDDATDKDLSDLVSEMEMMKMIGKHKNIINLLGACTQDGPLYVLVEYASKGNLR 106
Query: 152 DIL 154
+ L
Sbjct: 107 EYL 109
Score = 26.5 bits (58), Expect = 9.3
Identities = 11/33 (33%), Positives = 19/33 (57%)
Query: 24 HDHLVKFIGACLDPPHCCLLTEYCPKGSLQDIL 56
H +++ +GAC +L EY KG+L++ L
Sbjct: 77 HKNIINLLGACTQDGPLYVLVEYASKGNLREYL 109
>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 = 29.3 bits (66), Expect = 0.90
Identities = 18/68 (26%), Positives = 34/68 (50%), Gaps = 2/68 (2%)
Query: 89 KEGNKVAIKNLKKSRIDLT-RPLLLELKRLKDL-HHDHLVKFIGACLDPPHCCLLTEYCP 146
E + VA+K LK + L+ E++ +K + H +++ +G C ++ EY
Sbjct: 40 NETSTVAVKMLKDDATEKDLSDLVSEMEMMKMIGKHKNIINLLGVCTQEGPLYVVVEYAA 99
Query: 147 KGSLQDIL 154
G+L+D L
Sbjct: 100 HGNLRDFL 107
>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 = 29.3 bits (65), Expect = 1.1
Identities = 14/37 (37%), Positives = 19/37 (51%), Gaps = 10/37 (27%)
Query: 19 LKDLHHDHLVKFIGACLDP---------PHCCLLTEY 46
+ + H HLV+ +G CL P PH CLL +Y
Sbjct: 63 MASMDHPHLVRLLGVCLSPTIQLVTQLMPHGCLL-DY 98
Score = 29.3 bits (65), Expect = 1.1
Identities = 14/37 (37%), Positives = 19/37 (51%), Gaps = 10/37 (27%)
Query: 117 LKDLHHDHLVKFIGACLDP---------PHCCLLTEY 144
+ + H HLV+ +G CL P PH CLL +Y
Sbjct: 63 MASMDHPHLVRLLGVCLSPTIQLVTQLMPHGCLL-DY 98
>gnl|CDD|132964 cd06633, STKc_TAO3, Catalytic domain of the Protein
Serine/Threonine Kinase, Thousand-and-one amino acids 3.
Serine/threonine kinases (STKs), thousand-and-one amino
acids 3 (TAO3) subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The TAO subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. TAO proteins possess mitogen-activated protein
kinase (MAPK) kinase kinase (MAPKKK or MAP3K or MKKK)
activity. MAPK signaling cascades are important in
mediating cellular responses to extracellular signals.
TAO3 is also known as JIK (JNK inhibitory kinase) or KFC
(kinase from chicken). It specifically activates c-Jun
N-terminal kinase (JNK), presumably by phosphorylating
and activating MKK4/MKK7. In Saccharomyces cerevisiae,
TAO3 is a component of the RAM (regulation of Ace2p
activity and cellular morphogenesis) signaling pathway.
TAO3 is upregulated in retinal ganglion cells after
axotomy, and may play a role in apoptosis.
Length = 313
Score = 29.2 bits (65), Expect = 1.3
Identities = 23/91 (25%), Positives = 43/91 (47%), Gaps = 8/91 (8%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHDIVKF 78
L+ L H + +++ G L L+ EYC GS D+LE + L+ + ++ H ++
Sbjct: 75 LQQLKHPNTIEYKGCYLKEHTAWLVMEYC-LGSASDLLEVHKKPLQEVEIAAITHGALQG 133
Query: 79 NGYLKTKELLKEGNKVAIKNLKKSRIDLTRP 109
YL + ++ +++K I LT P
Sbjct: 134 LAYLHSHNMIH-------RDIKAGNILLTEP 157
Score = 28.1 bits (62), Expect = 2.9
Identities = 16/46 (34%), Positives = 26/46 (56%), Gaps = 1/46 (2%)
Query: 110 LLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILE 155
++ E+K L+ L H + +++ G L L+ EYC GS D+LE
Sbjct: 68 IIKEVKFLQQLKHPNTIEYKGCYLKEHTAWLVMEYC-LGSASDLLE 112
>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 = 29.0 bits (65), Expect = 1.4
Identities = 19/85 (22%), Positives = 38/85 (44%), Gaps = 8/85 (9%)
Query: 78 FNGYLKTKELLKEGNKVAIKNLKK-SRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDP- 135
++G L + + A+K+L + + ++ L E +KD H +++ +G CL
Sbjct: 12 YHGTLIDSD--GQKIHCAVKSLNRITDLEEVEQFLKEGIIMKDFSHPNVLSLLGICLPSE 69
Query: 136 --PHCCLLTEYCPKGSLQDILENEQ 158
P L Y G L++ + +E
Sbjct: 70 GSPLVVL--PYMKHGDLRNFIRSET 92
>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 = 28.7 bits (64), Expect = 1.4
Identities = 21/71 (29%), Positives = 31/71 (43%), Gaps = 1/71 (1%)
Query: 93 KVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQD 152
KVAIK + + + + E K + L H LV+ G C ++TE+ G L +
Sbjct: 30 KVAIKAINEGAMS-EEDFIEEAKVMMKLSHPKLVQLYGVCTQQKPLYIVTEFMENGCLLN 88
Query: 153 ILENEQFKLEP 163
L Q KL
Sbjct: 89 YLRQRQGKLSK 99
Score = 27.1 bits (60), Expect = 5.6
Identities = 18/62 (29%), Positives = 27/62 (43%)
Query: 22 LHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEPMFKNSLMHDIVKFNGY 81
L H LV+ G C ++TE+ G L + L Q KL S+ D+ + Y
Sbjct: 56 LSHPKLVQLYGVCTQQKPLYIVTEFMENGCLLNYLRQRQGKLSKDMLLSMCQDVCEGMEY 115
Query: 82 LK 83
L+
Sbjct: 116 LE 117
>gnl|CDD|173660 cd05123, STKc_AGC, Catalytic domain of AGC family Protein
Serine/Threonine Kinases. Serine/Threonine Kinases
(STKs), AGC (Protein Kinases A, G and C) family,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The AGC family is part
of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and Phosphoinositide 3-Kinase (PI3K). Members of
this family include cAMP-dependent Protein Kinase (PKA),
cGMP-dependent Protein Kinase (PKG), Protein Kinase C
(PKC), Protein Kinase B (PKB), G protein-coupled
Receptor Kinase (GRK), Serum- and Glucocorticoid-induced
Kinase (SGK), and 70 kDa ribosomal Protein S6 Kinase
(p70S6K or S6K), among others. AGC kinases share an
activation mechanism based on the phosphorylation of up
to three sites: the activation loop (A-loop), the
hydrophobic motif (HM) and the turn motif.
Phosphorylation at the A-loop is required of most AGC
kinases, which results in a disorder-to-order transition
of the A-loop. The ordered conformation results in the
access of substrates and ATP to the active site. A
subset of AGC kinases with C-terminal extensions
containing the HM also requires phosphorylation at this
site. Phosphorylation at the HM allows the C-terminal
extension to form an ordered structure that packs into
the hydrophobic pocket of the catalytic domain, which
then reconfigures the kinase into an active bi-lobed
state. In addition, growth factor-activated AGC kinases
such as PKB, p70S6K, RSK, MSK, PKC, and SGK, require
phosphorylation at the turn motif (also called tail or
zipper site), located N-terminal to the HM at the
C-terminal extension. AGC kinases regulate many cellular
processes including division, growth, survival,
metabolism, motility, and differentiation. Many are
implicated in the development of various human diseases.
Length = 250
Score = 28.6 bits (65), Expect = 1.6
Identities = 22/70 (31%), Positives = 28/70 (40%), Gaps = 3/70 (4%)
Query: 91 GNKVAIKNLKKSRI---DLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPK 147
G A+K LKK +I L E L ++H +VK A L+ EY P
Sbjct: 18 GKLYAMKVLKKKKIIKRKEVEHTLTERNILSRINHPFIVKLHYAFQTEEKLYLVLEYAPG 77
Query: 148 GSLQDILENE 157
G L L E
Sbjct: 78 GELFSHLSKE 87
>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 = 28.6 bits (64), Expect = 1.8
Identities = 19/92 (20%), Positives = 36/92 (39%), Gaps = 18/92 (19%)
Query: 19 LKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFKLEP------------- 65
L L H +++ + +D + EY G+L D + ++ +L
Sbjct: 53 LSLLQHPNIIAYYNHFMDDNTLLIEMEYANGGTLYDKIVRQKGQLFEEEMVLWYLFQIVS 112
Query: 66 ----MFKNSLMH-DIVKFNGYLKTKELLKEGN 92
+ K ++H DI N +L L+K G+
Sbjct: 113 AVSYIHKAGILHRDIKTLNIFLTKAGLIKLGD 144
Score = 27.0 bits (60), Expect = 5.1
Identities = 16/74 (21%), Positives = 33/74 (44%), Gaps = 2/74 (2%)
Query: 90 EGNKVAIKNLKKSRID--LTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPK 147
+ + V K + +R+ R L E+ L L H +++ + +D + EY
Sbjct: 24 DDSLVVWKEVNLTRLSEKERRDALNEIVILSLLQHPNIIAYYNHFMDDNTLLIEMEYANG 83
Query: 148 GSLQDILENEQFKL 161
G+L D + ++ +L
Sbjct: 84 GTLYDKIVRQKGQL 97
>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 = 28.5 bits (63), Expect = 1.8
Identities = 16/57 (28%), Positives = 32/57 (56%), Gaps = 1/57 (1%)
Query: 111 LLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDI-LENEQFKLEPMFK 166
++E++ L +H ++VK +GA ++ E+CP G++ I LE ++ EP +
Sbjct: 57 MVEIEILATCNHPYIVKLLGAFYWDGKLWIMIEFCPGGAVDAIMLELDRGLTEPQIQ 113
>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 = 28.4 bits (63), Expect = 1.9
Identities = 22/83 (26%), Positives = 38/83 (45%), Gaps = 4/83 (4%)
Query: 75 IVKFNGYLKTKELLKEGNKVAIKNLKKSRIDLTRPLL---LELKRLKDLHHDHLVKFIGA 131
+V+ Y K + VA+K LK + D L +EL +L H +++ +G
Sbjct: 28 VVRAEAYGIDKSRPDQTVTVAVKMLKDNATDKDLADLISEMELMKLIG-KHKNIINLLGV 86
Query: 132 CLDPPHCCLLTEYCPKGSLQDIL 154
C ++ EY KG+L++ L
Sbjct: 87 CTQEGPLYVIVEYAAKGNLREFL 109
>gnl|CDD|225405 COG2849, COG2849, Uncharacterized protein conserved in bacteria
[Function unknown].
Length = 230
Score = 28.5 bits (64), Expect = 1.9
Identities = 14/44 (31%), Positives = 21/44 (47%), Gaps = 3/44 (6%)
Query: 56 LENEQFKLEPMFKNSLMHDIVKF---NGYLKTKELLKEGNKVAI 96
EN + K E ++KN + I K NG L ++ K G K +
Sbjct: 141 YENGKLKSETVYKNGKLEGIAKTYYENGKLLSEVPYKNGKKNGV 184
Score = 27.8 bits (62), Expect = 3.0
Identities = 18/62 (29%), Positives = 27/62 (43%), Gaps = 8/62 (12%)
Query: 41 CLLTEYCPK-----GSLQDILENEQFKLEPMFKNSLMHDIVKF---NGYLKTKELLKEGN 92
LL+E K G ++ EN + E +KN + +VK G L + L K G
Sbjct: 169 KLLSEVPYKNGKKNGVVKIYYENGKLVEEVTYKNGKLDGVVKEYDEAGKLIKETLYKNGK 228
Query: 93 KV 94
+V
Sbjct: 229 EV 230
>gnl|CDD|132986 cd06655, STKc_PAK2, Catalytic domain of the Protein
Serine/Threonine Kinase, p21-activated kinase 2.
Serine/threonine kinases (STKs), p21-activated kinase
(PAK) 2, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The PAK
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. PAKs are Rho family GTPase-regulated kinases
that serve as important mediators in the function of
Cdc42 (cell division cycle 42) and Rac. PAKs from higher
eukaryotes are classified into two groups (I and II),
according to their biochemical and structural features.
PAK2 belongs to group I. Group I PAKs contain a PBD
(p21-binding domain) overlapping with an AID
(autoinhibitory domain), a C-terminal catalytic domain,
SH3 binding sites and a non-classical SH3 binding site
for PIX (PAK-interacting exchange factor). PAK2 plays a
role in pro-apoptotic signaling. It is cleaved and
activated by caspases leading to morphological changes
during apoptosis. PAK2 is also activated in response to
a variety of stresses including DNA damage,
hyperosmolarity, serum starvation, and contact
inhibition, and may play a role in coordinating the
stress response. PAK2 also contributes to cancer cell
invasion through a mechanism distinct from that of PAK1.
Length = 296
Score = 28.5 bits (63), Expect = 2.1
Identities = 17/64 (26%), Positives = 34/64 (53%)
Query: 91 GNKVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSL 150
G +VAIK + + ++ E+ +K+L + ++V F+ + L ++ EY GSL
Sbjct: 44 GQEVAIKQINLQKQPKKELIINEILVMKELKNPNIVNFLDSFLVGDELFVVMEYLAGGSL 103
Query: 151 QDIL 154
D++
Sbjct: 104 TDVV 107
>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 = 28.4 bits (63), Expect = 2.2
Identities = 18/64 (28%), Positives = 32/64 (50%), Gaps = 1/64 (1%)
Query: 93 KVAIKNLKKS-RIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQ 151
+V +K L+ S + L E + + L H +L++ +G C + L+ E+CP G L+
Sbjct: 24 QVVVKELRVSASVQEQMKFLEEAQPYRSLQHSNLLQCLGQCTEVTPYLLVMEFCPLGDLK 83
Query: 152 DILE 155
L
Sbjct: 84 GYLR 87
>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 = 28.2 bits (63), Expect = 2.2
Identities = 19/72 (26%), Positives = 36/72 (50%), Gaps = 6/72 (8%)
Query: 89 KEGNKVAIK--NLKKSRIDLT---RPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTE 143
G VA+K NL D++ R + L L +L+ ++ K+ G+ L P ++ E
Sbjct: 24 PTGRVVALKIINLDTPDDDVSDIQREVAL-LSQLRQSQPPNITKYYGSYLKGPRLWIIME 82
Query: 144 YCPKGSLQDILE 155
Y GS++ +++
Sbjct: 83 YAEGGSVRTLMK 94
Score = 26.6 bits (59), Expect = 8.0
Identities = 12/53 (22%), Positives = 29/53 (54%), Gaps = 3/53 (5%)
Query: 5 DVGRQVFVPTAFYKLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILE 57
D+ R+V + + +L+ ++ K+ G+ L P ++ EY GS++ +++
Sbjct: 45 DIQREVALLS---QLRQSQPPNITKYYGSYLKGPRLWIIMEYAEGGSVRTLMK 94
>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 = 28.4 bits (63), Expect = 2.2
Identities = 23/92 (25%), Positives = 35/92 (38%), Gaps = 11/92 (11%)
Query: 78 FNGYLKTKELLKEGNKVAIKNLK-----KSRIDLTRPLLLELKRLKDLHHDHLVKFIGAC 132
F G LK ++ VAIK LK K R D L E + H ++++ G
Sbjct: 22 FRGILKMPG--RKEVAVAIKTLKPGYTEKQRQDF----LSEASIMGQFSHHNIIRLEGVV 75
Query: 133 LDPPHCCLLTEYCPKGSLQDILENEQFKLEPM 164
++TEY G+L L + +
Sbjct: 76 TKFKPAMIITEYMENGALDKYLRDHDGEFSSY 107
>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 = 28.4 bits (64), Expect = 2.3
Identities = 19/65 (29%), Positives = 30/65 (46%), Gaps = 3/65 (4%)
Query: 78 FNGYLKTKELLKEGNKVAIKNLKKSRIDLTRPL-LLELKRLKDL-HHDHLVKFIGACLDP 135
F+ LK + K G AIK +KK L + L E++ L+ L H ++++ I D
Sbjct: 12 FSEVLKAQSR-KTGKYYAIKCMKKHFKSLEQVNNLREIQALRRLSPHPNILRLIEVLFDR 70
Query: 136 PHCCL 140
L
Sbjct: 71 KTGRL 75
>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 = 28.1 bits (63), Expect = 2.5
Identities = 17/57 (29%), Positives = 27/57 (47%), Gaps = 2/57 (3%)
Query: 91 GNKVAIKNLKKSRIDLTRPL--LLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYC 145
G VAIK +K P L E+K LK+L+H +++K + L+ E+
Sbjct: 24 GEIVAIKKIKLRFESEGIPKTALREIKLLKELNHPNIIKLLDVFRHKGDLYLVFEFM 80
>gnl|CDD|132967 cd06636, STKc_MAP4K4_6, Catalytic domain of the Protein
Serine/Threonine Kinases, Mitogen-Activated Protein
Kinase Kinase Kinase Kinase 4 and 6. Serine/threonine
kinases (STKs), mitogen-activated protein kinase (MAPK)
kinase kinase kinase 4 (MAPKKKK4 or MAP4K4) and MAPKKKK6
(or MAP4K6) subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The MAP4K4/MAP4K6 subfamily is part of a larger
superfamily that includes the catalytic domains of other
protein STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. Members of this subfamily
contain an N-terminal catalytic domain and a C-terminal
citron homology (CNH) regulatory domain. MAP4Ks (or
MAPKKKKs) are involved in MAPK signaling pathways that
are important in mediating cellular responses to
extracellular signals by activating a MAPK kinase kinase
(MAPKKK or MAP3K or MKKK). Each MAPK cascade is
activated either by a small GTP-binding protein or by an
adaptor protein, which transmits the signal either
directly to a MAP3K to start the triple kinase core
cascade or indirectly through a mediator kinase, a
MAP4K. MAP4K4 is also called Nck Interacting kinase
(NIK). It facilitates the activation of the MAPKs,
extracellular signal-regulated kinase (ERK) 1, ERK2, and
c-Jun N-terminal kinase (JNK), by phosphorylating and
activating MEKK1. MAP4K4 plays a role in tumor necrosis
factor (TNF) alpha-induced insulin resistance. MAP4K4
silencing in skeletal muscle cells from type II diabetic
patients restores insulin-mediated glucose uptake.
MAP4K4, through JNK, also plays a broad role in cell
motility, which impacts inflammation, homeostasis, as
well as the invasion and spread of cancer. MAP4K4 is
found to be highly expressed in most tumor cell lines
relative to normal tissue. MAP4K6 (also called MINK for
Misshapen/NIKs-related kinase) is activated after Ras
induction and mediates activation of p38 MAPK. MAP4K6
plays a role in cell cycle arrest, cytoskeleton
organization, cell adhesion, and cell motility.
Length = 282
Score = 28.0 bits (62), Expect = 2.6
Identities = 23/78 (29%), Positives = 39/78 (50%), Gaps = 8/78 (10%)
Query: 88 LKEGNKVAIKNLKKSRIDLTRPLLLELKRLKDL-HHDHLVKFIGACL--DPP----HCCL 140
+K G AIK + + D + LE+ LK HH ++ + GA + PP L
Sbjct: 38 VKTGQLAAIKVMDVTE-DEEEEIKLEINMLKKYSHHRNIATYYGAFIKKSPPGHDDQLWL 96
Query: 141 LTEYCPKGSLQDILENEQ 158
+ E+C GS+ D+++N +
Sbjct: 97 VMEFCGAGSVTDLVKNTK 114
>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 = 28.0 bits (62), Expect = 2.8
Identities = 14/45 (31%), Positives = 21/45 (46%), Gaps = 2/45 (4%)
Query: 91 GNKVAIKNLKKSRIDLT--RPLLLELKRLKDLHHDHLVKFIGACL 133
KVA+K LK + L E +K+ H +++K IG L
Sbjct: 27 FQKVAVKMLKADIFSSSDIEEFLREAACMKEFDHPNVIKLIGVSL 71
>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 = 27.9 bits (62), Expect = 2.9
Identities = 13/41 (31%), Positives = 23/41 (56%)
Query: 22 LHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFK 62
L H ++++ +G C++ L+ EYC G L+ L EQ+
Sbjct: 52 LQHPNILQCLGQCVEAIPYLLVFEYCELGDLKSYLSQEQWH 92
Score = 27.9 bits (62), Expect = 2.9
Identities = 13/41 (31%), Positives = 23/41 (56%)
Query: 120 LHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQDILENEQFK 160
L H ++++ +G C++ L+ EYC G L+ L EQ+
Sbjct: 52 LQHPNILQCLGQCVEAIPYLLVFEYCELGDLKSYLSQEQWH 92
>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 = 27.6 bits (62), Expect = 3.3
Identities = 17/64 (26%), Positives = 34/64 (53%), Gaps = 3/64 (4%)
Query: 94 VAIK--NLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSLQ 151
VAIK +L+++ ++ + E++ L ++ K+ G+ L ++ EYC GS
Sbjct: 29 VAIKVIDLEEAEDEIED-IQQEIQFLSQCRSPYITKYYGSFLKGSKLWIIMEYCGGGSCL 87
Query: 152 DILE 155
D+L+
Sbjct: 88 DLLK 91
>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 = 27.6 bits (62), Expect = 3.7
Identities = 18/68 (26%), Positives = 31/68 (45%), Gaps = 6/68 (8%)
Query: 83 KTKELLKEGNKVAIKNLKKSRIDLT---RPLLLELKRLKDLHHDHLVKFIGACLDPPHCC 139
K K K+G + AIK K + T + E+ L++L H+++V + L+
Sbjct: 20 KRKNG-KDGKEYAIKKFKGDKEQYTGISQSACREIALLRELKHENVVSLVEVFLEHADKS 78
Query: 140 --LLTEYC 145
LL +Y
Sbjct: 79 VYLLFDYA 86
>gnl|CDD|173749 cd07855, STKc_ERK5, Catalytic domain of the Serine/Threonine
Kinase, Extracellular signal-Regulated Kinase 5.
Serine/Threonine Kinases (STKs), Extracellular
signal-Regulated Kinase 5 (ERK5) subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The ERK5 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 are
important mediators of cellular responses to
extracellular signals. ERK5, also called Big MAPK1
(BMK1) or MAPK7, has a unique C-terminal extension,
making it approximately twice as big as other MAPKs.
This extension contains transcriptional activation
capability which is inhibited by the N-terminal half.
ERK5 is activated in response to growth factors and
stress by a cascade that leads to its phosphorylation by
the MAP2K MEK5, which in turn is regulated by the MAP3Ks
MEKK2 and MEKK3. Activated ERK5 phosphorylates its
targets including myocyte enhancer factor 2 (MEF2),
Sap1a, c-Myc, and RSK. It plays a role in EGF-induced
cell proliferation during the G1/S phase transition.
Studies on knockout mice revealed that ERK5 is essential
for cardiovascular development and plays an important
role in angiogenesis. It is also critical for neural
differentiation and survival. The ERK5 pathway has been
implicated in the pathogenesis of many diseases
including cancer, cardiac hypertrophy, and
atherosclerosis.
Length = 334
Score = 27.7 bits (62), Expect = 3.8
Identities = 14/40 (35%), Positives = 22/40 (55%), Gaps = 2/40 (5%)
Query: 89 KEGNKVAIKNLKKS--RIDLTRPLLLELKRLKDLHHDHLV 126
+ G KVAIK + + L + L ELK L+ HD+++
Sbjct: 28 RSGKKVAIKKIPHAFDVPTLAKRTLRELKILRHFKHDNII 67
>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 = 27.5 bits (62), Expect = 4.1
Identities = 17/80 (21%), Positives = 33/80 (41%), Gaps = 5/80 (6%)
Query: 88 LKEGNKVAIKNLKKSRIDLTRPL--LLELKRLKDLHHDHLVKFIGACLDPPH--CCLLTE 143
K G VA+K ++ P+ + E+K L+ L H ++V+ ++ E
Sbjct: 21 KKTGELVALKKIRMENEKEGFPITAIREIKLLQKLRHPNIVRLKEIVTSKGKGSIYMVFE 80
Query: 144 YCPKGSLQDILENEQFKLEP 163
Y L +L++ + K
Sbjct: 81 YMDH-DLTGLLDSPEVKFTE 99
>gnl|CDD|132978 cd06647, STKc_PAK_I, Catalytic domain of the Protein
Serine/Threonine Kinase, Group I p21-activated kinase.
Serine/threonine kinases (STKs), p21-activated kinase
(PAK) subfamily, Group I, 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. PAKs from higher
eukaryotes are classified into two groups (I and II),
according to their biochemical and structural features.
Group I PAKs, also called conventional PAKs, include
PAK1, PAK2, and PAK3. 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). They interact
with the SH3 domain containing proteins Nck, Grb2 and
PIX. Binding of group I PAKs to activated GTPases leads
to conformational changes that destabilize the AID,
allowing autophosphorylation and full activation of the
kinase domain. Known group I PAK substrates include
MLCK, Bad, Raf, MEK1, LIMK, Merlin, Vimentin, Myc,
Stat5a, and Aurora A, among others.
Length = 293
Score = 27.2 bits (60), Expect = 4.6
Identities = 15/64 (23%), Positives = 33/64 (51%)
Query: 91 GNKVAIKNLKKSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSL 150
G +VAIK + + ++ E+ +++ H ++V ++ + L ++ EY GSL
Sbjct: 44 GQEVAIKQMNLQQQPKKELIINEILVMRENKHPNIVNYLDSYLVGDELWVVMEYLAGGSL 103
Query: 151 QDIL 154
D++
Sbjct: 104 TDVV 107
>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 = 27.4 bits (60), Expect = 4.9
Identities = 22/78 (28%), Positives = 39/78 (50%), Gaps = 8/78 (10%)
Query: 88 LKEGNKVAIKNLKKSRIDLTRPLLLELKRLKDL-HHDHLVKFIGACL--DPP----HCCL 140
+K G AIK + + D + E+ LK HH ++ + GA + +PP L
Sbjct: 28 VKTGQLAAIKVMDVTG-DEEEEIKQEINMLKKYSHHRNIATYYGAFIKKNPPGMDDQLWL 86
Query: 141 LTEYCPKGSLQDILENEQ 158
+ E+C GS+ D+++N +
Sbjct: 87 VMEFCGAGSVTDLIKNTK 104
Score = 26.6 bits (58), Expect = 8.4
Identities = 13/44 (29%), Positives = 25/44 (56%), Gaps = 6/44 (13%)
Query: 23 HHDHLVKFIGACL--DPP----HCCLLTEYCPKGSLQDILENEQ 60
HH ++ + GA + +PP L+ E+C GS+ D+++N +
Sbjct: 61 HHRNIATYYGAFIKKNPPGMDDQLWLVMEFCGAGSVTDLIKNTK 104
>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 = 27.1 bits (61), Expect = 4.9
Identities = 16/40 (40%), Positives = 24/40 (60%), Gaps = 4/40 (10%)
Query: 91 GNKVAIK---NLKKSRIDLTRPLLLELKRLKDLHHDHLVK 127
G KVAIK N+ ID R +L E+K L+ L H++++
Sbjct: 25 GRKVAIKKISNVFDDLIDAKR-ILREIKLLRHLRHENIIG 63
>gnl|CDD|222619 pfam14242, DUF4342, Domain of unknown function (DUF4342). This
family of proteins is found in bacteria. Proteins in
this family are typically between 97 and 206 amino acids
in length. There is a single completely conserved
residue P that may be functionally important.
Length = 84
Score = 26.1 bits (58), Expect = 4.9
Identities = 10/26 (38%), Positives = 18/26 (69%), Gaps = 2/26 (7%)
Query: 83 KTKELLKEGN--KVAIKNLKKSRIDL 106
K KEL+K+GN ++ IK K+ +++
Sbjct: 21 KIKELIKKGNVRRIIIKKDDKTLLEI 46
>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 = 27.0 bits (60), Expect = 6.4
Identities = 21/85 (24%), Positives = 43/85 (50%), Gaps = 13/85 (15%)
Query: 88 LKEGNKVAIKNLK-------KSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCL 140
L +G VA+K ++ K+R D L E+ LK L H +++K++ + ++ +
Sbjct: 24 LLDGRVVALKKVQIFEMMDAKARQDC----LKEIDLLKQLDHPNVIKYLASFIENNELNI 79
Query: 141 LTEYCPKGSLQDILEN--EQFKLEP 163
+ E G L ++++ +Q +L P
Sbjct: 80 VLELADAGDLSRMIKHFKKQKRLIP 104
>gnl|CDD|173680 cd05589, STKc_PKN, Catalytic domain of the Protein Serine/Threonine
Kinase, Protein Kinase N. Serine/Threonine Kinases
(STKs), Protein Kinase N (PKN) subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The PKN 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. PKN has a
C-terminal catalytic domain that is highly homologous to
PKCs. Its unique N-terminal regulatory region contains
antiparallel coiled-coil (ACC) domains. In mammals,
there are three PKN isoforms from different genes
(designated PKN-alpha, beta, and gamma), which show
different enzymatic properties, tissue distribution, and
varied functions. PKN can be activated by the small
GTPase Rho, and by fatty acids such as arachidonic and
linoleic acids. It is involved in many biological
processes including cytokeletal regulation, cell
adhesion, vesicle transport, glucose transport,
regulation of meiotic maturation and embryonic cell
cycles, signaling to the nucleus, and tumorigenesis.
Length = 324
Score = 27.0 bits (60), Expect = 6.9
Identities = 25/81 (30%), Positives = 30/81 (37%), Gaps = 8/81 (9%)
Query: 86 ELLKEGNKVAIKNLKKSRI---DLTRPLLLELKRL----KDLHHDHLVKFIGACLDPPHC 138
E K G AIK LKK I D L+ E KR+ H LV H
Sbjct: 19 EYKKTGELYAIKALKKGDIIARDEVESLMCE-KRIFETANSERHPFLVNLFACFQTEDHV 77
Query: 139 CLLTEYCPKGSLQDILENEQF 159
C + EY G L + + F
Sbjct: 78 CFVMEYAAGGDLMMHIHTDVF 98
>gnl|CDD|132966 cd06635, STKc_TAO1, Catalytic domain of the Protein
Serine/Threonine Kinase, Thousand-and-one amino acids 1.
Serine/threonine kinases (STKs), thousand-and-one amino
acids 1 (TAO1) subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The TAO subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. TAO proteins possess mitogen-activated protein
kinase (MAPK) kinase kinase (MAPKKK or MAP3K or MKKK)
activity. MAPK signaling cascades are important in
mediating cellular responses to extracellular signals.
TAO1 is sometimes referred to as prostate-derived
sterile 20-like kinase 2 (PSK2). TAO1 activates the p38
MAPK through direct interaction with and activation of
MEK3. TAO1 is highly expressed in the brain and may play
a role in neuronal apoptosis. TAO1 interacts with the
checkpoint proteins BubR1 and Mad2, and plays an
important role in regulating mitotic progression, which
is required for both chromosome congression and
checkpoint-induced anaphase delay. TAO1 may play a role
in protecting genomic stability.
Length = 317
Score = 26.6 bits (58), Expect = 7.5
Identities = 20/65 (30%), Positives = 34/65 (52%), Gaps = 4/65 (6%)
Query: 94 VAIKNLK---KSRIDLTRPLLLELKRLKDLHHDHLVKFIGACLDPPHCCLLTEYCPKGSL 150
VAIK + K + + ++ E+K L+ + H + +++ G L L+ EYC GS
Sbjct: 53 VAIKKMSYSGKQSNEKWQDIIKEVKFLQRIKHPNSIEYKGCYLREHTAWLVMEYC-LGSA 111
Query: 151 QDILE 155
D+LE
Sbjct: 112 SDLLE 116
>gnl|CDD|172047 PRK13424, PRK13424, F0F1 ATP synthase subunit gamma; Provisional.
Length = 291
Score = 26.6 bits (59), Expect = 9.0
Identities = 15/36 (41%), Positives = 20/36 (55%), Gaps = 2/36 (5%)
Query: 76 VKFNGYLKTKELLKEGNKVAIKNLK--KSRIDLTRP 109
VK G KTK++ K N VA L+ + RI+ RP
Sbjct: 9 VKIAGVKKTKQITKAMNMVASAKLRGAQQRIERFRP 44
>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 = 26.2 bits (58), Expect = 9.5
Identities = 15/44 (34%), Positives = 23/44 (52%), Gaps = 2/44 (4%)
Query: 91 GNKVAIKNLKKSRID--LTRPLLLELKRLKDLHHDHLVKFIGAC 132
G VAIK +S D + + + E++ LK L H++LV I
Sbjct: 26 GQIVAIKKFLESEDDKMVKKIAMREIRMLKQLRHENLVNLIEVF 69
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
0.325 0.143 0.444
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: 9,280,838
Number of extensions: 849536
Number of successful extensions: 1409
Number of sequences better than 10.0: 1
Number of HSP's gapped: 1365
Number of HSP's successfully gapped: 275
Length of query: 184
Length of database: 10,937,602
Length adjustment: 91
Effective length of query: 93
Effective length of database: 6,901,388
Effective search space: 641829084
Effective search space used: 641829084
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 15 ( 7.0 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 40 (21.6 bits)
S2: 56 (25.2 bits)