Protein kinase family protein [Arabidopsis thaliana]
Protein Classification
casein kinase 1 family protein( domain architecture ID 10197075)
casein kinase 1 family protein similar to Bos taurus casein kinase I isoform beta (CKI-beta) that can phosphorylate a large number of proteins
List of domain hits
| Name | Accession | Description | Interval | E-value | |||||
| STKc_CK1 | cd14016 | Catalytic domain of the Serine/Threonine protein kinase, Casein Kinase 1; STKs catalyze the ... |
106-386 | 1.93e-136 | |||||
Catalytic domain of the Serine/Threonine protein kinase, Casein Kinase 1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. CK1 phosphorylates a variety of substrates including enzymes, transcription and splice factors, cytoskeletal proteins, viral oncogenes, receptors, and membrane-associated proteins. There are mutliple isoforms of CK1 and in mammals, seven isoforms (alpha, beta, gamma1-3, delta, and epsilon) have been characterized. These isoforms differ mainly in the length and structure of their C-terminal non-catalytic region. Some isoforms have several splice variants such as the long (L) and short (S) variants of CK1alpha. CK1 proteins are involved in the regulation of many cellular processes including membrane transport processes, circadian rhythm, cell division, apoptosis, and the development of cancer and neurodegenerative diseases. The CK1 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. : Pssm-ID: 270918 [Multi-domain] Cd Length: 266 Bit Score: 400.68 E-value: 1.93e-136
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| Name | Accession | Description | Interval | E-value | |||||
| STKc_CK1 | cd14016 | Catalytic domain of the Serine/Threonine protein kinase, Casein Kinase 1; STKs catalyze the ... |
106-386 | 1.93e-136 | |||||
Catalytic domain of the Serine/Threonine protein kinase, Casein Kinase 1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. CK1 phosphorylates a variety of substrates including enzymes, transcription and splice factors, cytoskeletal proteins, viral oncogenes, receptors, and membrane-associated proteins. There are mutliple isoforms of CK1 and in mammals, seven isoforms (alpha, beta, gamma1-3, delta, and epsilon) have been characterized. These isoforms differ mainly in the length and structure of their C-terminal non-catalytic region. Some isoforms have several splice variants such as the long (L) and short (S) variants of CK1alpha. CK1 proteins are involved in the regulation of many cellular processes including membrane transport processes, circadian rhythm, cell division, apoptosis, and the development of cancer and neurodegenerative diseases. The CK1 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. Pssm-ID: 270918 [Multi-domain] Cd Length: 266 Bit Score: 400.68 E-value: 1.93e-136
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| SPS1 | COG0515 | Serine/threonine protein kinase [Signal transduction mechanisms]; |
107-328 | 1.99e-24 | |||||
Serine/threonine protein kinase [Signal transduction mechanisms]; Pssm-ID: 440281 [Multi-domain] Cd Length: 482 Bit Score: 107.41 E-value: 1.99e-24
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| PHA02882 | PHA02882 | putative serine/threonine kinase; Provisional |
107-387 | 2.83e-21 | |||||
putative serine/threonine kinase; Provisional Pssm-ID: 165211 [Multi-domain] Cd Length: 294 Bit Score: 94.63 E-value: 2.83e-21
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| S_TKc | smart00220 | Serine/Threonine protein kinases, catalytic domain; Phosphotransferases. Serine or ... |
107-328 | 2.15e-16 | |||||
Serine/Threonine protein kinases, catalytic domain; Phosphotransferases. Serine or threonine-specific kinase subfamily. Pssm-ID: 214567 [Multi-domain] Cd Length: 254 Bit Score: 79.50 E-value: 2.15e-16
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| arch_bud32 | TIGR03724 | Kae1-associated kinase Bud32; Members of this protein family are the Bud32 protein associated ... |
186-277 | 8.73e-05 | |||||
Kae1-associated kinase Bud32; Members of this protein family are the Bud32 protein associated with Kae1 (kinase-associated endopeptidase 1) in the Archaea. In many Archaeal genomes, Kae1 and Bud32 are fused. The complex is homologous to the Kae1 and Bud32 subunits of the eukaryotic KEOPS complex, an apparently ancient protein kinase-containing molecular machine. [Unknown function, General] Pssm-ID: 274749 [Multi-domain] Cd Length: 199 Bit Score: 44.12 E-value: 8.73e-05
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| Name | Accession | Description | Interval | E-value | |||||
| STKc_CK1 | cd14016 | Catalytic domain of the Serine/Threonine protein kinase, Casein Kinase 1; STKs catalyze the ... |
106-386 | 1.93e-136 | |||||
Catalytic domain of the Serine/Threonine protein kinase, Casein Kinase 1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. CK1 phosphorylates a variety of substrates including enzymes, transcription and splice factors, cytoskeletal proteins, viral oncogenes, receptors, and membrane-associated proteins. There are mutliple isoforms of CK1 and in mammals, seven isoforms (alpha, beta, gamma1-3, delta, and epsilon) have been characterized. These isoforms differ mainly in the length and structure of their C-terminal non-catalytic region. Some isoforms have several splice variants such as the long (L) and short (S) variants of CK1alpha. CK1 proteins are involved in the regulation of many cellular processes including membrane transport processes, circadian rhythm, cell division, apoptosis, and the development of cancer and neurodegenerative diseases. The CK1 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. Pssm-ID: 270918 [Multi-domain] Cd Length: 266 Bit Score: 400.68 E-value: 1.93e-136
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| STKc_CK1_delta_epsilon | cd14125 | Catalytic domain of the Serine/Threonine protein kinases, Casein Kinase 1 delta and epsilon; ... |
107-386 | 7.76e-75 | |||||
Catalytic domain of the Serine/Threonine protein kinases, Casein Kinase 1 delta and epsilon; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. CK1 phosphorylates a variety of substrates including enzymes, transcription and splice factors, cytoskeletal proteins, viral oncogenes, receptors, and membrane-associated proteins. There are mutliple isoforms of CK1 and in mammals, seven isoforms (alpha, beta, gamma1-3, delta, and epsilon) have been characterized. These isoforms differ mainly in the length and structure of their C-terminal non-catalytic region. The delta and epsilon isoforms of CK1 play important roles in circadian rhythm and cell growth. They phosphorylate PERIOD proteins (PER1-3), which are circadian clock proteins that fulfill negative regulatory functions. PER phosphorylation leads to its degradation. However, CRY proteins form a complex with PER and CK1delta/epsilon that protects PER from degradation and leads to nuclear accummulation of the complex, which inhibits BMAL1-CLOCK dependent transcription activation. CK1delta/epsilon also phosphorylate the tumor suppressor p53 and the cellular oncogene Mdm2, which are key regulators of cell growth, genome integrity, and the development of cancer. This subfamily also includes the CK1 fungal proteins Saccharomyces cerevisiae HRR25 and Schizosaccharomyces pombe HHP1. These fungal proteins are involved in DNA repair. The CK1 delta/epsilon 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. Pssm-ID: 271027 [Multi-domain] Cd Length: 275 Bit Score: 241.89 E-value: 7.76e-75
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| STKc_CK1_fungal | cd14127 | Catalytic domain of the Serine/Threonine protein kinase, Fungal Casein Kinase 1 homolog 1; ... |
107-387 | 4.09e-69 | |||||
Catalytic domain of the Serine/Threonine protein kinase, Fungal Casein Kinase 1 homolog 1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. CK1 phosphorylates a variety of substrates including enzymes, transcription and splice factors, cytoskeletal proteins, viral oncogenes, receptors, and membrane-associated proteins. There are mutliple isoforms of CK1 and in mammals, seven isoforms (alpha, beta, gamma1-3, delta, and epsilon) have been characterized. These isoforms differ mainly in the length and structure of their C-terminal non-catalytic region. This subfamily is composed of fungal CK1 homolog 1 proteins, also called Yck1 in Saccharomyces cerevisiae and Cki1 in Schizosaccharomyces pombe. Yck1 (or Yck1p) and Cki1 are plasma membrane-anchored proteins. Yck1 phosphorylates and regulates Khd1p, a RNA-binding protein that represses translation of bud-localized mRNA. Cki1 phosphorylates and regulates phosphatidylinositol (PI)-(4)P-5-kinase, which catalyzes the last step in the sythesis of PI(4,5)P2, which is involved in actin cytoskeleton remodeling and membrane traffic. The fungal CK1 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. Pssm-ID: 271029 [Multi-domain] Cd Length: 277 Bit Score: 226.99 E-value: 4.09e-69
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| STKc_CK1_alpha | cd14128 | Catalytic domain of the Serine/Threonine protein kinases, Casein Kinase 1 alpha; STKs catalyze ... |
107-386 | 1.39e-64 | |||||
Catalytic domain of the Serine/Threonine protein kinases, Casein Kinase 1 alpha; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. CK1 phosphorylates a variety of substrates including enzymes, transcription and splice factors, cytoskeletal proteins, viral oncogenes, receptors, and membrane-associated proteins. There are mutliple isoforms of CK1 and in mammals, seven isoforms (alpha, beta, gamma1-3, delta, and epsilon) have been characterized. These isoforms differ mainly in the length and structure of their C-terminal non-catalytic region. CK1alpha plays a role in cell cycle progression, spindle dynamics, and chromosome segregation. It is also involved in regulating apoptosis mediated by Fas or the retinoid X receptor (RXR), and is a positive regulator of Wnt signaling. CK1alpha phosphorylates the NS5A protein of flaviviruses such as the Hepatitis C virus (HCV) and yellow fever virus (YFV), and influences flaviviral replication. The CK1 alpha 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. Pssm-ID: 271030 [Multi-domain] Cd Length: 266 Bit Score: 214.29 E-value: 1.39e-64
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| STKc_CK1_gamma | cd14126 | Catalytic domain of the Serine/Threonine protein kinase, Casein Kinase 1 gamma; STKs catalyze ... |
107-386 | 2.82e-56 | |||||
Catalytic domain of the Serine/Threonine protein kinase, Casein Kinase 1 gamma; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. CK1 phosphorylates a variety of substrates including enzymes, transcription and splice factors, cytoskeletal proteins, viral oncogenes, receptors, and membrane-associated proteins. There are mutliple isoforms of CK1 and in mammals, seven isoforms (alpha, beta, gamma1-3, delta, and epsilon) have been characterized. These isoforms differ mainly in the length and structure of their C-terminal non-catalytic region. CK1gamma proteins are unique within the CK1 subfamily in that they are palmitoylated at the C-termini and are anchored to the plasma membrane. CK1gamma is involved in transducing the signaling of LDL-receptor-related protein 6 (LRP6) through direct phosphorylation following Wnt stimulation, resulting in the recruitment of the scaffold protein Axin. In Xenopus embryos, CK1gamma is required during anterio-posterior patterning. In higher vertebrates, three CK1gamma (gamma1-3) isoforms exist. In mammalian cells, CK1gamma2 has been implicated in regulating the synthesis of sphingomyelin, a phospholipid that is found in the outer leaflet of the plasma membrane, by hyperphosphorylating and inactivating the ceramide transfer protein CERT. CK1gamma2 also phosphorylates the transcription factor Smad-3 resulting in its ubiquitination and degradation. It inhibits Smad-3 mediated responses of Transforming Growth Factor-beta (TGF-beta) including cell growth arrest. The CK1 gamma 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. Pssm-ID: 271028 [Multi-domain] Cd Length: 288 Bit Score: 193.03 E-value: 2.82e-56
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| STKc_TTBK | cd14017 | Catalytic domain of the Serine/Threonine protein kinase, Tau-Tubulin Kinase; STKs catalyze the ... |
107-387 | 1.33e-49 | |||||
Catalytic domain of the Serine/Threonine protein kinase, Tau-Tubulin Kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. TTBK is a neuron-specific kinase that phosphorylates the microtubule-associated protein tau and promotes its aggregation. Higher vertebrates contain two TTBK proteins, TTBK1 and TTBK2, both of which have been implicated in neurodegeneration. TTBK1 has been linked to Alzheimer's disease (AD) while TTBK2 is associated with spinocerebellar ataxia type 11 (SCA11). Both AD and SCA11 patients show the presence of neurofibrillary tangles in the brain. The Drosophila TTBK homolog, Asator, is an essential protein that localizes to the mitotic spindle during mitosis and may be involved in regulating microtubule dynamics and function. The TTBK 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. Pssm-ID: 270919 [Multi-domain] Cd Length: 263 Bit Score: 173.98 E-value: 1.33e-49
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| STKc_VRK | cd14015 | Catalytic domain of the Serine/Threonine protein kinase, Vaccinia Related Kinase; STKs ... |
107-386 | 1.61e-46 | |||||
Catalytic domain of the Serine/Threonine protein kinase, Vaccinia Related Kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. VRKs were initially discovered due to its similarity to vaccinia virus B1R STK, which is important for viral replication. They play important roles in cell signaling, nuclear envelope dynamics, apoptosis, and stress responses. Vertebrates contain three VRK proteins (VRK1, VRK2, and VRK3) while invertebrates, specifically fruit flies and nematodes, seem to carry only a single ortholog. Mutations of VRK in Drosophila and Caenorhabditis elegans showed varying phenotypes ranging from embryonic lethality to mitotic and meiotic defects resulting in sterility. In vertebrates, VRK1 is implicated in cell cycle progression and proliferation, nuclear envelope assembly, and chromatin condensation. VRK2 is involved in modulating JNK signaling. VRK3 is an inactive pseudokinase that inhibits ERK signaling. The VRK 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. Pssm-ID: 270917 [Multi-domain] Cd Length: 300 Bit Score: 166.69 E-value: 1.61e-46
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| STKc_TTBK2 | cd14129 | Catalytic domain of the Serine/Threonine protein kinase, Tau-Tubulin Kinase 2; STKs catalyze ... |
107-387 | 1.97e-28 | |||||
Catalytic domain of the Serine/Threonine protein kinase, Tau-Tubulin Kinase 2; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. TTBK is a neuron-specific kinase that phosphorylates the microtubule-associated protein tau and promotes its aggregation. Higher vertebrates contain two TTBK proteins, TTBK1 and TTBK2, both of which have been implicated in neurodegeneration. Mutations in TTBK2 is associated with the development of spinocerebellar ataxia type 11, belonging to a group of neurodegenerative disorders characterized by progressive incoordination, dysarthria and impairment of eye movements. Brain tissues of SCA11 patients show the presence of neurofibrillary tangles and tau deposition in the brain, similar to Alzheimer's disease (AD) patients. The TTBK2 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. Pssm-ID: 271031 [Multi-domain] Cd Length: 262 Bit Score: 114.77 E-value: 1.97e-28
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| STKc_VRK1 | cd14122 | Catalytic domain of the Serine/Threonine protein kinase, Vaccinia Related Kinase 1; STKs ... |
107-382 | 4.13e-28 | |||||
Catalytic domain of the Serine/Threonine protein kinase, Vaccinia Related Kinase 1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. VRKs were initially discovered due to its similarity to vaccinia virus B1R STK, which is important for viral replication. Vertebrates contain three VRK proteins. Human VRK1 is implicated in the regulation of many cellular processes including cell cycle progression and proliferation, stress responses, nuclear envelope assembly and chromatin condensation. It regulates cell cycle progression during the DNA replication period by inducing cyclin D1 expression. VRK1 also phosphorylates and regulates some transcription factors including p53, c-Jun, ATF2, and nuclear factor BAF. VRK1 stabilizes p53 by interfering with its mdm2-mediated degradation. Accumulation of p53, which blocks cell growth and division, is modulated by an autoregulatory loop between p53 and VRK1 (accumulated p53 downregulates VRK1). This autoregulatory loop has been found to be nonfunctional in some lung carcinomas. The VRK1 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. Pssm-ID: 271024 [Multi-domain] Cd Length: 301 Bit Score: 114.98 E-value: 4.13e-28
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| STKc_TTBK1 | cd14130 | Catalytic domain of the Serine/Threonine protein kinase, Tau-Tubulin Kinase 1; STKs catalyze ... |
107-387 | 1.10e-26 | |||||
Catalytic domain of the Serine/Threonine protein kinase, Tau-Tubulin Kinase 1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. TTBK is a neuron-specific kinase that phosphorylates the microtubule-associated protein tau and promotes its aggregation. Higher vertebrates contain two TTBK proteins, TTBK1 and TTBK2, both of which have been implicated in neurodegeneration. Genetic variations in TTBK1 are linked to Alzheimer's disease (AD). Hyperphosphorylated tau is a major component of paired helical filaments that accumulate in the brain of AD patients. Studies in transgenic mice show that TTBK1 is involved in the phosphorylation-dependent pathogenic aggregation of tau. The TTBK1 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. Pssm-ID: 271032 [Multi-domain] Cd Length: 262 Bit Score: 109.73 E-value: 1.10e-26
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| STKc_VRK2 | cd14123 | Catalytic domain of the Serine/Threonine protein kinase, Vaccinia Related Kinase 2; STKs ... |
107-379 | 3.69e-25 | |||||
Catalytic domain of the Serine/Threonine protein kinase, Vaccinia Related Kinase 2; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. VRKs were initially discovered due to its similarity to vaccinia virus B1R STK, which is important for viral replication. They play important roles in cell signaling, nuclear envelope dynamics, apoptosis, and stress responses. Vertebrates contain three VRK proteins. VRK2 exists as two alternative splice forms, A and B, which differ in their C-terminal regions. VRK2A, the predominant isoform, contains a hydrophobic tail and is anchored to the ER and mitochondria. It is expressed in all cell types. VRK2B lacks a membrane-anchor tail and is detected in the cytosol and the nucleus. Like VRK1, it can stabilize p53. VRK2B functionally replaces VRK1 in the nucleus of cell types where VRK1 is absent. VRK2 modulates hypoxia-induced stress responses by interacting with TAK1, an atypical MAPK kinase kinase which triggers cascades that activate JNK following oxidative stress. VRK2 also interacts with JIP1, a scaffold protein that assembles three consecutive members of a MAPK pathway. This interaction prevents the association of JNK with the signaling complex, leading to reduced phosphorylation and AP1-dependent transcription. The VRK2 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. Pssm-ID: 271025 [Multi-domain] Cd Length: 302 Bit Score: 106.47 E-value: 3.69e-25
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| SPS1 | COG0515 | Serine/threonine protein kinase [Signal transduction mechanisms]; |
107-328 | 1.99e-24 | |||||
Serine/threonine protein kinase [Signal transduction mechanisms]; Pssm-ID: 440281 [Multi-domain] Cd Length: 482 Bit Score: 107.41 E-value: 1.99e-24
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| STKc_PknB_like | cd14014 | Catalytic domain of bacterial Serine/Threonine kinases, PknB and similar proteins; STKs ... |
107-337 | 9.94e-22 | |||||
Catalytic domain of bacterial Serine/Threonine kinases, PknB and similar proteins; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. This subfamily includes many bacterial eukaryotic-type STKs including Staphylococcus aureus PknB (also called PrkC or Stk1), Bacillus subtilis PrkC, and Mycobacterium tuberculosis Pkn proteins (PknB, PknD, PknE, PknF, PknL, and PknH), among others. S. aureus PknB is the only eukaryotic-type STK present in this species, although many microorganisms encode for several such proteins. It is important for the survival and pathogenesis of S. aureus as it is involved in the regulation of purine and pyrimidine biosynthesis, cell wall metabolism, autolysis, virulence, and antibiotic resistance. M. tuberculosis PknB is essential for growth and it acts on diverse substrates including proteins involved in peptidoglycan synthesis, cell division, transcription, stress responses, and metabolic regulation. B. subtilis PrkC is located at the inner membrane of endospores and functions to trigger spore germination. Bacterial STKs in this subfamily show varied domain architectures. The well-characterized members such as S. aureus and M. tuberculosis PknB, and B. subtilis PrkC, contain an N-terminal cytosolic kinase domain, a transmembrane (TM) segment, and mutliple C-terminal extracellular PASTA domains. The PknB 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. Pssm-ID: 270916 [Multi-domain] Cd Length: 260 Bit Score: 95.35 E-value: 9.94e-22
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| PHA02882 | PHA02882 | putative serine/threonine kinase; Provisional |
107-387 | 2.83e-21 | |||||
putative serine/threonine kinase; Provisional Pssm-ID: 165211 [Multi-domain] Cd Length: 294 Bit Score: 94.63 E-value: 2.83e-21
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| PKc | cd00180 | Catalytic domain of Protein Kinases; PKs catalyze the transfer of the gamma-phosphoryl group ... |
113-319 | 2.06e-20 | |||||
Catalytic domain of Protein Kinases; PKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine or tyrosine residues on protein substrates. PKs make up a large family of serine/threonine kinases (STKs), protein tyrosine kinases (PTKs), and dual-specificity PKs that phosphorylate both serine/threonine and tyrosine residues of target proteins. Majority of protein phosphorylation 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 more than 500 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. 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. Pssm-ID: 270622 [Multi-domain] Cd Length: 215 Bit Score: 90.02 E-value: 2.06e-20
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| PK_VRK3 | cd14124 | Pseudokinase domain of Vaccinia Related Kinase 3; The pseudokinase domain shows similarity to ... |
190-380 | 2.09e-19 | |||||
Pseudokinase domain of Vaccinia Related Kinase 3; The pseudokinase domain shows similarity to protein kinases but lacks crucial residues for catalytic activity. VRKs were initially discovered due to its similarity to vaccinia virus B1R STK, which is important for viral replication. They play important roles in cell signaling, nuclear envelope dynamics, apoptosis, and stress responses. Vertebrates contain three VRK proteins. VRK3 is an inactive pseudokinase that is unable to bind ATP. It achieves its regulatory function through protein-protein interactions. It negatively regulates ERK signaling by binding directly and enhancing the activity of the MAPK phosphatase VHR (vaccinia H1-related), which dephosphorylates and inactivates ERK. The VRK3 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. Pssm-ID: 271026 [Multi-domain] Cd Length: 298 Bit Score: 89.13 E-value: 2.09e-19
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| S_TKc | smart00220 | Serine/Threonine protein kinases, catalytic domain; Phosphotransferases. Serine or ... |
107-328 | 2.15e-16 | |||||
Serine/Threonine protein kinases, catalytic domain; Phosphotransferases. Serine or threonine-specific kinase subfamily. Pssm-ID: 214567 [Multi-domain] Cd Length: 254 Bit Score: 79.50 E-value: 2.15e-16
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| STKc_Bub1_BubR1 | cd13981 | Catalytic domain of the Serine/Threonine kinases, Spindle assembly checkpoint proteins Bub1 ... |
107-263 | 9.42e-14 | |||||
Catalytic domain of the Serine/Threonine kinases, Spindle assembly checkpoint proteins Bub1 and BubR1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. This subfamily is composed of Bub1 (Budding uninhibited by benzimidazoles 1), BubR1, and similar proteins. They contain an N-terminal Bub1/Mad3 homology domain essential for Cdc20 binding and a C-terminal kinase domain. Bub1 and BubR1 are involved in SAC, a surveillance system that delays metaphase to anaphase transition by blocking the activity of APC/C (the anaphase promoting complex) until all chromosomes achieve proper attachments to the mitotic spindle, to avoid chromosome missegregation. Impaired SAC leads to genomic instabilities and tumor development. Bub1 and BubR1 facilitate the localization of SAC proteins to kinetochores and regulate kinetochore-microtubule (K-MT) attachments. Repression studies of Bub1 and BubR1 show that they exert an additive effect in misalignment phenotypes and may function cooperatively or in parallel pathways in regulating K-MT attachments. The Bub1/BubR1 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. Pssm-ID: 270883 [Multi-domain] Cd Length: 298 Bit Score: 72.39 E-value: 9.42e-14
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| STKc_CMGC | cd05118 | Catalytic domain of CMGC family Serine/Threonine Kinases; STKs catalyze the transfer of the ... |
107-266 | 1.13e-11 | |||||
Catalytic domain of CMGC family Serine/Threonine Kinases; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. 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 other kinases. 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. Other members of the CMGC family include casein kinase 2 (CK2), Dual-specificity tYrosine-phosphorylated and -Regulated Kinase (DYRK), Glycogen Synthase Kinase 3 (GSK3), among many others. The CMGC family is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270688 [Multi-domain] Cd Length: 249 Bit Score: 65.33 E-value: 1.13e-11
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| STKc_PIM | cd14005 | Catalytic domain of the Serine/Threonine kinase, Proviral Integration Moloney virus (PIM) ... |
106-292 | 2.56e-11 | |||||
Catalytic domain of the Serine/Threonine kinase, Proviral Integration Moloney virus (PIM) kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. The PIM gene locus was discovered as a result of the cloning of retroviral intergration sites in murine Moloney leukemia virus, leading to the identification of PIM kinases. They are constitutively active STKs with a broad range of cellular targets and are overexpressed in many haematopoietic malignancies and solid cancers. Vertebrates contain three distinct PIM kinase genes (PIM1-3); each gene may result in mutliple protein isoforms. There are two PIM1 and three PIM2 isoforms as a result of alternative translation initiation sites, while there is only one PIM3 protein. Compound knockout mice deficient of all three PIM kinases that survive the perinatal period show a profound reduction in body size, indicating that PIMs are important for body growth. The PIM 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. Pssm-ID: 270907 [Multi-domain] Cd Length: 255 Bit Score: 64.57 E-value: 2.56e-11
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| STKc_Pat1_like | cd13993 | Catalytic domain of Fungal Pat1-like Serine/Threonine kinases; STKs catalyze the transfer of ... |
107-326 | 6.76e-10 | |||||
Catalytic domain of Fungal Pat1-like Serine/Threonine kinases; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. This subfamily is composed of Schizosaccharomyces pombe Pat1 (also called Ran1), Saccharomyces cerevisiae VHS1 and KSP1, and similar fungal STKs. Pat1 blocks Mei2, an RNA-binding protein which is indispensable in the initiation of meiosis. Pat1 is inactivated and Mei2 activated, which initiates meiosis, under nutrient-deprived conditions through a signaling cascade involving Ste11. Meiosis induced by Pat1 inactivation may show different characteristics than normal meiosis including aberrant positioning of centromeres. VHS1 was identified in a screen for suppressors of cell cycle arrest at the G1/S transition, while KSP1 may be involved in regulating PRP20, which is required for mRNA export and maintenance of nuclear structure. The Pat1-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. Pssm-ID: 270895 [Multi-domain] Cd Length: 267 Bit Score: 60.44 E-value: 6.76e-10
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| STKc_Mos | cd13979 | Catalytic domain of the Serine/Threonine kinase, Oocyte maturation factor Mos; STKs catalyze ... |
113-328 | 9.78e-10 | |||||
Catalytic domain of the Serine/Threonine kinase, Oocyte maturation factor Mos; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. Mos (or c-Mos) is a germ-cell specific kinase that plays roles in both the release of primary arrest and the induction of secondary arrest in oocytes. It is expressed towards the end of meiosis I and is quickly degraded upon fertilization. It is a component of the cytostatic factor (CSF), which is responsible for metaphase II arrest. In addition, Mos activates a phoshorylation cascade that leads to the activation of the p34 subunit of MPF (mitosis-promoting factor or maturation promoting factor), a cyclin-dependent kinase that is responsible for the release of primary arrest in meiosis I. The Mos 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. Pssm-ID: 270881 [Multi-domain] Cd Length: 265 Bit Score: 59.70 E-value: 9.78e-10
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| STKc_ROCK_NDR_like | cd05573 | Catalytic domain of Rho-associated coiled-coil containing protein kinase (ROCK)- and Nuclear ... |
212-303 | 9.15e-08 | |||||
Catalytic domain of Rho-associated coiled-coil containing protein kinase (ROCK)- and Nuclear Dbf2-Related (NDR)-like Serine/Threonine Kinases; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. Members of this subfamily include ROCK and ROCK-like proteins such as DMPK, MRCK, and CRIK, as well as NDR and NDR-like proteins such as LATS, CBK1 and Sid2p. ROCK and CRIK are effectors of the small GTPase Rho, while MRCK is an effector of the small GTPase Cdc42. NDR and NDR-like kinases contain an N-terminal regulatory (NTR) domain and an insert within the catalytic domain that contains an auto-inhibitory sequence. Proteins in this subfamily are involved in regulating many cellular functions including contraction, motility, division, proliferation, apoptosis, morphogenesis, and cytokinesis. The ROCK/NDR-like subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270725 [Multi-domain] Cd Length: 350 Bit Score: 54.60 E-value: 9.15e-08
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| Bud32 | COG3642 | tRNA A-37 threonylcarbamoyl transferase component Bud32 [Translation, ribosomal structure and ... |
175-277 | 1.47e-07 | |||||
tRNA A-37 threonylcarbamoyl transferase component Bud32 [Translation, ribosomal structure and biogenesis]; tRNA A-37 threonylcarbamoyl transferase component Bud32 is part of the Pathway/BioSystem: tRNA modification Pssm-ID: 442859 [Multi-domain] Cd Length: 159 Bit Score: 51.50 E-value: 1.47e-07
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| STKc_CCRK | cd07832 | Catalytic domain of the Serine/Threonine Kinase, Cell Cycle-Related Kinase; STKs catalyze the ... |
107-265 | 1.86e-07 | |||||
Catalytic domain of the Serine/Threonine Kinase, Cell Cycle-Related Kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. 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. The CCRK subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270826 [Multi-domain] Cd Length: 287 Bit Score: 53.10 E-value: 1.86e-07
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| STKc_NIK | cd13991 | Catalytic domain of the Serine/Threonine kinase, NF-kappaB Inducing Kinase (NIK); STKs ... |
221-329 | 2.43e-07 | |||||
Catalytic domain of the Serine/Threonine kinase, NF-kappaB Inducing Kinase (NIK); STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. NIK, also called mitogen activated protein kinase kinase kinase 14 (MAP3K14), phosphorylates and activates Inhibitor of NF-KappaB Kinase (IKK) alpha, which is a regulator of NF-kB proteins, a family of transcription factors which are critical in many cellular functions including inflammatory responses, immune development, cell survival, and cell proliferation, among others. NIK is essential in the IKKalpha-mediated non-canonical NF-kB signaling pathway, in which IKKalpha processes the IkB-like C-terminus of NF-kB2/p100 to produce p52, allowing the p52/RelB dimer to migrate to the nucleus where it regulates gene transcription. NIK also plays an important role in Toll-like receptor 7/9 signaling cascades. The NIK 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. Pssm-ID: 270893 [Multi-domain] Cd Length: 268 Bit Score: 52.51 E-value: 2.43e-07
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| STKc_Cdc7 | cd14019 | Catalytic domain of the Serine/Threonine Kinase, Cell Division Cycle 7 kinase; STKs catalyze ... |
107-265 | 3.65e-07 | |||||
Catalytic domain of the Serine/Threonine Kinase, Cell Division Cycle 7 kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. Cdc7 kinase (or Hsk1 in fission yeast) is a critical regulator in the initiation of DNA replication. It forms a complex with a Dbf4-related regulatory subunit, a cyclin-like molecule that activates the kinase in late G1 phase, and is also referred to as Dbf4-dependent kinase (DDK). Its main targets are mini-chromosome maintenance (MCM) proteins. Cdc7 kinase may also have additional roles in meiosis, checkpoint responses, the maintenance and repair of chromosome structures, and cancer progression. The Cdc7 kinase subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270921 [Multi-domain] Cd Length: 252 Bit Score: 51.84 E-value: 3.65e-07
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| STKc_MAP3K8 | cd13995 | Catalytic domain of the Serine/Threonine kinase, Mitogen-Activated Protein Kinase (MAPK) ... |
115-326 | 4.65e-07 | |||||
Catalytic domain of the Serine/Threonine kinase, Mitogen-Activated Protein Kinase (MAPK) Kinase Kinase 8; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. MAP3K8 is also called Tumor progression locus 2 (Tpl2) or Cancer Osaka thyroid (Cot), and was first identified as a proto-oncogene in T-cell lymphoma induced by MoMuL virus and in breast carcinoma induced by MMTV. Activated MAP3K8 induces various MAPK pathways including Extracellular Regulated Kinase (ERK) 1/2, c-Jun N-terminal kinase (JNK), and p38. It plays a pivotal role in innate immunity, linking Toll-like receptors to the production of TNF and the activation of ERK in macrophages. It is also required in interleukin-1beta production and is critical in host defense against Gram-positive bacteria. MAP3Ks (MKKKs or 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. The MAP3K8 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. Pssm-ID: 270897 [Multi-domain] Cd Length: 256 Bit Score: 51.55 E-value: 4.65e-07
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| PKc_Wee1_like | cd13997 | Catalytic domain of the Wee1-like Protein Kinases; PKs catalyze the transfer of the ... |
168-292 | 7.64e-07 | |||||
Catalytic domain of the Wee1-like Protein Kinases; PKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine or tyrosine residues on protein substrates. This subfamily is composed of the dual-specificity kinase Myt1, the protein tyrosine kinase Wee1, and similar proteins. These proteins are cell cycle checkpoint kinases that are involved in the regulation of cyclin-dependent kinase CDK1, the master engine for mitosis. CDK1 is kept inactivated through phosphorylation of N-terminal thr (T14 by Myt1) and tyr (Y15 by Myt1 and Wee1) residues. Mitosis progression is ensured through activation of CDK1 by dephoshorylation and inactivation of Myt1/Wee1. The Wee1-like subfamily is part of a larger superfamily that includes the catalytic domains of other protein serine/threonine PKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270899 [Multi-domain] Cd Length: 252 Bit Score: 50.84 E-value: 7.64e-07
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| APH_ChoK_like | cd05120 | Aminoglycoside 3'-phosphotransferase and Choline Kinase family; This family is composed of APH, ... |
135-266 | 1.30e-06 | |||||
Aminoglycoside 3'-phosphotransferase and Choline Kinase family; This family is composed of APH, ChoK, ethanolamine kinase (ETNK), macrolide 2'-phosphotransferase (MPH2'), an unusual homoserine kinase, and uncharacterized proteins with similarity to the N-terminal domain of acyl-CoA dehydrogenase 10 (ACAD10). The members of this family catalyze the transfer of the gamma-phosphoryl group from ATP (or CTP) to small molecule substrates such as aminoglycosides, macrolides, choline, ethanolamine, and homoserine. Phosphorylation of the antibiotics, aminoglycosides and macrolides, leads to their inactivation and to bacterial antibiotic resistance. Phosphorylation of choline, ethanolamine, and homoserine serves as precursors to the synthesis of important biological compounds, such as the major phospholipids, phosphatidylcholine and phosphatidylethanolamine and the amino acids, threonine, methionine, and isoleucine. The APH/ChoK family is part of a larger superfamily that includes the catalytic domains of other kinases, such as the typical serine/threonine/tyrosine protein kinases (PKs), RIO kinases, actin-fragmin kinase (AFK), and phosphoinositide 3-kinase (PI3K). Pssm-ID: 270690 [Multi-domain] Cd Length: 158 Bit Score: 48.84 E-value: 1.30e-06
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| STKc_CAMK | cd05117 | The catalytic domain of CAMK family Serine/Threonine Kinases; STKs catalyze the transfer of ... |
107-271 | 1.90e-06 | |||||
The catalytic domain of CAMK family Serine/Threonine Kinases; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. CaMKs are multifunctional calcium and calmodulin (CaM) stimulated STKs involved in cell cycle regulation. There are several types of CaMKs including CaMKI, CaMKII, and CaMKIV. CaMKI proteins are monomeric and they play pivotal roles in the nervous system, including long-term potentiation, dendritic arborization, neurite outgrowth, and the formation of spines, synapses, and axons. CaMKII is a signaling molecule that translates upstream calcium and reactive oxygen species (ROS) signals into downstream responses that play important roles in synaptic function and cardiovascular physiology. CAMKIV is implicated in regulating several transcription factors like CREB, MEF2, and retinoid orphan receptors, as well as in T-cell development and signaling. The CAMK family also consists of other related kinases including the Phosphorylase kinase Gamma subunit (PhKG), the C-terminal kinase domains of Ribosomal S6 kinase (RSK) and Mitogen and stress-activated kinase (MSK), Doublecortin-like kinase (DCKL), and the MAPK-activated protein kinases MK2, MK3, and MK5, among others. The CAMK 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. Pssm-ID: 270687 [Multi-domain] Cd Length: 258 Bit Score: 49.78 E-value: 1.90e-06
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| STKc_PDK1 | cd05581 | Catalytic domain of the Serine/Threonine Kinase, Phosphoinositide-dependent kinase 1; STKs ... |
218-331 | 2.21e-06 | |||||
Catalytic domain of the Serine/Threonine Kinase, Phosphoinositide-dependent kinase 1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. PDK1 carries an N-terminal catalytic domain and a C-terminal pleckstrin homology (PH) domain that binds phosphoinositides. It phosphorylates the activation loop of AGC kinases that are regulated by PI3K such as PKB, SGK, and PKC, among others, and is crucial for their activation. Thus, it contributes in regulating many processes including metabolism, growth, proliferation, and survival. PDK1 also has the ability to autophosphorylate and is constitutively active in mammalian cells. It is essential for normal embryo development and is important in regulating cell volume. The PDK1 subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270733 [Multi-domain] Cd Length: 278 Bit Score: 49.91 E-value: 2.21e-06
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| STKc_cGK | cd05572 | Catalytic domain of the Serine/Threonine Kinase, cGMP-dependent protein kinase (cGK or PKG); ... |
190-328 | 2.89e-06 | |||||
Catalytic domain of the Serine/Threonine Kinase, cGMP-dependent protein kinase (cGK or PKG); STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. 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. The cGK subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270724 [Multi-domain] Cd Length: 262 Bit Score: 49.15 E-value: 2.89e-06
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| PKc_DYRK_like | cd14133 | Catalytic domain of Dual-specificity tYrosine-phosphorylated and -Regulated Kinase-like ... |
107-266 | 3.92e-06 | |||||
Catalytic domain of Dual-specificity tYrosine-phosphorylated and -Regulated Kinase-like protein kinases; Dual-specificity PKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine (S/T) as well as tyrosine residues on protein substrates. This subfamily is composed of the dual-specificity DYRKs and YAK1, as well as the S/T kinases (STKs), HIPKs. DYRKs and YAK1 autophosphorylate themselves on tyrosine residues and phosphorylate their substrates exclusively on S/T residues. Proteins in this subfamily play important roles in cell proliferation, differentiation, survival, growth, and development. The DYRK-like subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 271035 [Multi-domain] Cd Length: 262 Bit Score: 48.80 E-value: 3.92e-06
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| STKc_AMPK-like | cd14003 | Catalytic domain of AMP-activated protein kinase-like Serine/Threonine Kinases; STKs catalyze ... |
223-337 | 5.09e-06 | |||||
Catalytic domain of AMP-activated protein kinase-like Serine/Threonine Kinases; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. The AMPK-like subfamily is composed of AMPK, MARK, BRSK, NUAK, MELK, SNRK, TSSK, and SIK, among others. LKB1 serves as a master upstream kinase that activates AMPK and most AMPK-like kinases. AMPK, also called SNF1 (sucrose non-fermenting1) in yeasts and SnRK1 (SNF1-related kinase1) in plants, is a heterotrimeric enzyme composed of a catalytic alpha subunit and two regulatory subunits, beta and gamma. It is a stress-activated kinase that serves as master regulator of glucose and lipid metabolism by monitoring carbon and energy supplies, via sensing the cell's AMP:ATP ratio. MARKs phosphorylate tau and related microtubule-associated proteins (MAPs), and regulates microtubule-based intracellular transport. They are involved in embryogenesis, epithelial cell polarization, cell signaling, and neuronal differentiation. BRSKs play important roles in establishing neuronal polarity. TSSK proteins are almost exclusively expressed postmeiotically in the testis and play important roles in spermatogenesis and/or spermiogenesis. The AMPK-like subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270905 [Multi-domain] Cd Length: 252 Bit Score: 48.28 E-value: 5.09e-06
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| STKc_SBK1 | cd13987 | Catalytic domain of the Serine/Threonine kinase, SH3 Binding Kinase 1; STKs catalyze the ... |
113-366 | 6.89e-06 | |||||
Catalytic domain of the Serine/Threonine kinase, SH3 Binding Kinase 1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. SBK1, also called BSK146, is predominantly expressed in the brain. Its expression is increased in the developing brain during the late embryonic stage, coinciding with dramatic neuronal proliferation, migration, and maturation. SBK1 may play an important role in regulating brain development. The SBK1 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. Pssm-ID: 270889 [Multi-domain] Cd Length: 259 Bit Score: 48.09 E-value: 6.89e-06
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| STKc_LKB1_CaMKK | cd14008 | Catalytic domain of the Serine/Threonine kinases, Liver Kinase B1, Calmodulin Dependent ... |
190-328 | 8.35e-06 | |||||
Catalytic domain of the Serine/Threonine kinases, Liver Kinase B1, Calmodulin Dependent Protein Kinase Kinase, and similar proteins; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. Both LKB1 and CaMKKs can phosphorylate and activate AMP-activated protein kinase (AMPK). LKB1, also called STK11, serves as a master upstream kinase that activates AMPK and most AMPK-like kinases. LKB1 and AMPK are part of an energy-sensing pathway that links cell energy to metabolism and cell growth. They play critical roles in the establishment and maintenance of cell polarity, cell proliferation, cytoskeletal organization, as well as T-cell metabolism, including T-cell development, homeostasis, and effector function. CaMKKs are upstream kinases of the CaM kinase cascade that phosphorylate and activate CaMKI and CamKIV. They may also phosphorylate other substrates including PKB and AMPK. Vertebrates contain two CaMKKs, CaMKK1 (or alpha) and CaMKK2 (or beta). CaMKK1 is involved in the regulation of glucose uptake in skeletal muscles. CaMKK2 is involved in regulating energy balance, glucose metabolism, adiposity, hematopoiesis, inflammation, and cancer. The LKB1/CaMKK subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270910 [Multi-domain] Cd Length: 267 Bit Score: 47.93 E-value: 8.35e-06
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| STKc_GRK | cd05577 | Catalytic domain of the Serine/Threonine Kinase, G protein-coupled Receptor Kinase; STKs ... |
113-330 | 9.07e-06 | |||||
Catalytic domain of the Serine/Threonine Kinase, G protein-coupled Receptor Kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. GRKs phosphorylate and regulate G protein-coupled receptors (GPCRs), the largest superfamily of cell surface receptors, which regulate some part of nearly all physiological functions. Phosphorylated GPCRs bind to arrestins, which prevents further G protein signaling despite the presence of activating ligand. GRKs play important roles in the cardiovascular, immune, respiratory, skeletal, and nervous systems. They contain a central catalytic domain, flanked by N- and C-terminal extensions. The N-terminus contains an RGS (regulator of G protein signaling) homology (RH) domain and several motifs. The C-terminus diverges among different groups of GRKs. There are seven types of GRKs, named GRK1 to GRK7, which are subdivided into three main groups: visual (GRK1/7); beta-adrenergic receptor kinases (GRK2/3); and GRK4-like (GRK4/5/6). Expression of GRK2/3/5/6 is widespread while GRK1/4/7 show a limited tissue distribution. The substrate spectrum of the widely expressed GRKs partially overlaps. The GRK subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270729 [Multi-domain] Cd Length: 278 Bit Score: 47.91 E-value: 9.07e-06
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| STKc_AGC | cd05123 | Catalytic domain of AGC family Serine/Threonine Kinases; STKs catalyze the transfer of the ... |
184-267 | 1.64e-05 | |||||
Catalytic domain of AGC family Serine/Threonine Kinases; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. AGC kinases regulate many cellular processes including division, growth, survival, metabolism, motility, and differentiation. Many are implicated in the development of various human diseases. 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. The AGC family is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and Phosphoinositide 3-Kinase. Pssm-ID: 270693 [Multi-domain] Cd Length: 250 Bit Score: 46.74 E-value: 1.64e-05
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| STKc_MELK | cd14078 | Catalytic domain of the Serine/Threonine Kinase, Maternal Embryonic Leucine zipper Kinase; ... |
223-267 | 1.72e-05 | |||||
Catalytic domain of the Serine/Threonine Kinase, Maternal Embryonic Leucine zipper Kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. MELK is a cell cycle dependent protein which functions in cytokinesis, cell cycle, apoptosis, cell proliferation, and mRNA processing. It is found upregulated in many types of cancer cells, playing an indispensable role in cancer cell survival. It makes an attractive target in the design of inhibitors for use in the treatment of a wide range of human cancer. The MELK subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270980 [Multi-domain] Cd Length: 257 Bit Score: 46.99 E-value: 1.72e-05
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| STKc_16 | cd13986 | Catalytic domain of Serine/Threonine Kinase 16; STKs catalyze the transfer of the ... |
107-274 | 2.14e-05 | |||||
Catalytic domain of Serine/Threonine Kinase 16; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. STK16 is associated with many names including Myristylated and Palmitylated Serine/threonine Kinase 1 (MPSK1), Kinase related to cerevisiae and thaliana (Krct), and Protein Kinase expressed in day 12 fetal liver (PKL12). It is widely expressed in mammals with highest levels found in liver, testis, and kidney. It is localized in the Golgi but is translocated to the nucleus upon disorganization of the Golgi. STK16 is constitutively active and is capable of phosphorylating itself and other substrates. It may be involved in regulating stromal-epithelial interactions during mammary gland ductal morphogenesis. It may also function as a transcriptional co-activator of type-C natriuretic peptide and VEGF. The STK16 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. Pssm-ID: 270888 [Multi-domain] Cd Length: 282 Bit Score: 46.91 E-value: 2.14e-05
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| STKc_Chk1 | cd14069 | Catalytic domain of the Serine/Threonine kinase, Checkpoint kinase 1; STKs catalyze the ... |
223-344 | 2.80e-05 | |||||
Catalytic domain of the Serine/Threonine kinase, Checkpoint kinase 1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. Chk1 is implicated in many major checkpoints of the cell cycle, providing a link between upstream sensors and the cell cycle engine. It plays an important role in DNA damage response and maintaining genomic stability. Chk1 acts as an effector of the sensor kinase, ATR (ATM and Rad3-related), a member of the PI3K family, which is activated upon DNA replication stress. Chk1 delays mitotic entry in response to replication blocks by inhibiting cyclin dependent kinase (Cdk) activity. In addition, Chk1 contributes to the function of centrosome and spindle-based checkpoints, inhibits firing of origins of DNA replication (Ori), and represses transcription of cell cycle proteins including cyclin B and Cdk1. The Chk1 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. Pssm-ID: 270971 [Multi-domain] Cd Length: 261 Bit Score: 46.17 E-value: 2.80e-05
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| STKc_PASK | cd14004 | Catalytic domain of the Serine/Threonine kinase, Per-ARNT-Sim (PAS) domain Kinase; STKs ... |
186-294 | 3.64e-05 | |||||
Catalytic domain of the Serine/Threonine kinase, Per-ARNT-Sim (PAS) domain Kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. PASK (or PASKIN) is a nutrient and energy sensor and thus, plays an important role in maintaining cellular energy homeostasis. It coordinates the utilization of glucose in response to metabolic demand. It contains an N-terminal PAS domain which directly interacts and inhibits a C-terminal catalytic kinase domain. The PAS domain serves as a sensory module for different environmental signals such as light, redox state, and various metabolites. Binding of ligands to the PAS domain causes structural changes which leads to kinase activation and the phosphorylation of substrates to trigger the appropriate cellular response. The PASK 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. Pssm-ID: 270906 [Multi-domain] Cd Length: 256 Bit Score: 45.84 E-value: 3.64e-05
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| PLN03225 | PLN03225 | Serine/threonine-protein kinase SNT7; Provisional |
105-269 | 3.74e-05 | |||||
Serine/threonine-protein kinase SNT7; Provisional Pssm-ID: 215638 [Multi-domain] Cd Length: 566 Bit Score: 46.71 E-value: 3.74e-05
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| STKc_ROCK | cd05596 | Catalytic domain of the Serine/Threonine Kinase, Rho-associated coiled-coil containing protein ... |
113-325 | 4.37e-05 | |||||
Catalytic domain of the Serine/Threonine Kinase, Rho-associated coiled-coil containing protein kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. ROCK is also referred to as Rho-associated kinase or simply as Rho kinase. It contains an N-terminal extension, a catalytic kinase domain, and a long C-terminal extension, which contains a coiled-coil region encompassing a Rho-binding domain (RBD) and a pleckstrin homology (PH) domain. ROCK is auto-inhibited by the RBD and PH domain interacting with the catalytic domain. It is activated via interaction with Rho GTPases and is involved in many cellular functions including contraction, adhesion, migration, motility, proliferation, and apoptosis. The ROCK subfamily consists of two isoforms, ROCK1 and ROCK2, which may be functionally redundant in some systems, but exhibit different tissue distributions. Both isoforms are ubiquitously expressed in most tissues, but ROCK2 is more prominent in brain and skeletal muscle while ROCK1 is more pronounced in the liver, testes, and kidney. Studies in knockout mice result in different phenotypes, suggesting that the two isoforms do not compensate for each other during embryonic development. The ROCK subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270747 [Multi-domain] Cd Length: 352 Bit Score: 46.22 E-value: 4.37e-05
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| STKc_MAPKKK | cd06606 | Catalytic domain of the Serine/Threonine Kinase, Mitogen-Activated Protein Kinase Kinase ... |
107-326 | 5.86e-05 | |||||
Catalytic domain of the Serine/Threonine Kinase, Mitogen-Activated Protein Kinase Kinase Kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. 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. The MAPKKK subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270783 [Multi-domain] Cd Length: 258 Bit Score: 45.20 E-value: 5.86e-05
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| PRK14879 | PRK14879 | Kae1-associated kinase Bud32; |
188-277 | 5.89e-05 | |||||
Kae1-associated kinase Bud32; Pssm-ID: 237847 [Multi-domain] Cd Length: 211 Bit Score: 44.90 E-value: 5.89e-05
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| STKc_PIM2 | cd14101 | Catalytic domain of the Serine/Threonine kinase, Proviral Integration Moloney virus (PIM) ... |
107-246 | 5.92e-05 | |||||
Catalytic domain of the Serine/Threonine kinase, Proviral Integration Moloney virus (PIM) kinase 2; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. The PIM gene locus was discovered as a result of the cloning of retroviral intergration sites in murine Moloney leukemia virus, leading to the identification of PIM kinases. They are constitutively active STKs with a broad range of cellular targets and are overexpressed in many haematopoietic malignancies and solid cancers. Vertebrates contain three distinct PIM kinase genes (PIM1-3); each gene may result in mutliple protein isoforms. There are three PIM2 isoforms resulting from alternative translation initiation sites. PIM2 is highly expressed in leukemia and lymphomas and has been shown to promote the survival and proliferation of tumor cells. The PIM2 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. Pssm-ID: 271003 [Multi-domain] Cd Length: 257 Bit Score: 45.23 E-value: 5.92e-05
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| STKc_MSK2_C | cd14180 | C-terminal catalytic domain of the Serine/Threonine Kinase, Mitogen and stress-activated ... |
223-345 | 8.49e-05 | |||||
C-terminal catalytic domain of the Serine/Threonine Kinase, Mitogen and stress-activated kinase 2; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. MSK2 and MSK1 play nonredundant roles in activating histone H3 kinases, which play pivotal roles in compaction of the chromatin fiber. MSK2 is the required H3 kinase in response to stress stimuli and activation of the p38 MAPK pathway. MSK2 also plays a role in the pathogenesis of psoriasis. MSKs contain an N-terminal kinase domain (NTD) from the AGC family and a C-terminal kinase domain (CTD) from the CAMK family, similar to 90 kDa ribosomal protein S6 kinases (RSKs). MSKs are activated by two major signaling cascades, the Ras-MAPK and p38 stress kinase pathways, which trigger phosphorylation in the activation loop (A-loop) of the CTD of MSK. The active CTD phosphorylates the hydrophobic motif (HM) of NTD, which facilitates the phosphorylation of the A-loop and activates the NTD, which in turn phosphorylates downstream targets. The MSK2 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. Pssm-ID: 271082 [Multi-domain] Cd Length: 309 Bit Score: 45.25 E-value: 8.49e-05
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| arch_bud32 | TIGR03724 | Kae1-associated kinase Bud32; Members of this protein family are the Bud32 protein associated ... |
186-277 | 8.73e-05 | |||||
Kae1-associated kinase Bud32; Members of this protein family are the Bud32 protein associated with Kae1 (kinase-associated endopeptidase 1) in the Archaea. In many Archaeal genomes, Kae1 and Bud32 are fused. The complex is homologous to the Kae1 and Bud32 subunits of the eukaryotic KEOPS complex, an apparently ancient protein kinase-containing molecular machine. [Unknown function, General] Pssm-ID: 274749 [Multi-domain] Cd Length: 199 Bit Score: 44.12 E-value: 8.73e-05
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| STKc_PLK3 | cd14189 | Catalytic domain of the Serine/Threonine Kinase, Polo-like kinase 3; STKs catalyze the ... |
107-334 | 1.21e-04 | |||||
Catalytic domain of the Serine/Threonine Kinase, Polo-like kinase 3; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. PLKs play important roles in cell cycle progression and in DNA damage responses. They regulate mitotic entry, mitotic exit, and cytokinesis. In general PLKs contain an N-terminal catalytic kinase domain and a C-terminal regulatory polo box domain (PBD), which is comprised by two bipartite polo-box motifs (or polo boxes) and is involved in protein interactions. There are five mammalian PLKs (PLK1-5) from distinct genes. PLK3, also called Prk or Fnk (FGF-inducible kinase), regulates angiogenesis and responses to DNA damage. Activated PLK3 mediates Chk2 phosphorylation by ATM and the resulting checkpoint activation. PLK3 phosphorylates DNA polymerase delta and may be involved in DNA repair. It also inhibits Cdc25c, thereby regulating the onset of mitosis. The PLK3 subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 271091 [Multi-domain] Cd Length: 255 Bit Score: 44.15 E-value: 1.21e-04
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| STKc_HIPK3 | cd14229 | Catalytic domain of the Serine/Threonine Kinase, Homeodomain-Interacting Protein Kinase 3; ... |
113-288 | 1.39e-04 | |||||
Catalytic domain of the Serine/Threonine Kinase, Homeodomain-Interacting Protein Kinase 3; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. HIPK3 is a Fas-interacting protein that induces FADD (Fas-associated death domain) phosphorylation and mediates FasL-induced JNK activation. Overexpression of HIPK3 does not affect cell death, however its expression in prostate cancer cells contributes to increased resistance to Fas receptor-mediated apoptosis. HIPK3 also plays a role in regulating steroidogenic gene expression. In response to cAMP, HIPK3 activates the phosphorylation of JNK and c-Jun, leading to increased activity of the transcription factor SF-1 (Steroidogenic factor 1), a key regulator for steroid biosynthesis in the gonad and adrenal gland. HIPKs, originally identified by their ability to bind homeobox factors, are nuclear proteins containing catalytic kinase and homeobox-interacting domains as well as a PEST region overlapping with the speckle-retention signal (SRS). The HIPK3 subfamily is part of a larger superfamily that includes the catalytic domains of other protein STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase (PI3K). Pssm-ID: 271131 [Multi-domain] Cd Length: 330 Bit Score: 44.63 E-value: 1.39e-04
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| STKc_Aurora-A | cd14116 | Catalytic domain of the Serine/Threonine kinase, Aurora-A kinase; STKs catalyze the transfer ... |
107-327 | 1.41e-04 | |||||
Catalytic domain of the Serine/Threonine kinase, Aurora-A kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. Aurora kinases are key regulators of mitosis and are essential for the accurate and equal division of genomic material from parent to daughter cells. Vertebrates contain at least 2 Aurora kinases (A and B); mammals contains a third Aurora kinase gene (C). Aurora-A regulates cell cycle events from the late S-phase through the M-phase including centrosome maturation, mitotic entry, centrosome separation, spindle assembly, chromosome alignment, cytokinesis, and mitotic exit. Aurora-A activation depends on its autophosphorylation and binding to the microtubule-associated protein TPX2, which also localizes the kinase to spindle microtubules. Aurora-A is overexpressed in many cancer types such as prostate, ovarian, breast, bladder, gastric, and pancreatic. The Aurora 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. Pssm-ID: 271018 [Multi-domain] Cd Length: 258 Bit Score: 44.18 E-value: 1.41e-04
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| STKc_Yank1 | cd05578 | Catalytic domain of the Serine/Threonine Kinase, Yank1; STKs catalyze the transfer of the ... |
107-328 | 1.61e-04 | |||||
Catalytic domain of the Serine/Threonine Kinase, Yank1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. This subfamily contains uncharacterized STKs with similarity to the human protein designated as Yank1 or STK32A. The Yank1 subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270730 [Multi-domain] Cd Length: 257 Bit Score: 43.78 E-value: 1.61e-04
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| STKc_PAK_I | cd06647 | Catalytic domain of the Serine/Threonine Kinase, Group I p21-activated kinase; STKs catalyze ... |
185-256 | 1.66e-04 | |||||
Catalytic domain of the Serine/Threonine Kinase, Group I p21-activated kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. 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. 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. The PAK subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270814 [Multi-domain] Cd Length: 261 Bit Score: 43.76 E-value: 1.66e-04
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| STKc_DCKL | cd14095 | Catalytic domain of the Serine/Threonine Kinase, Doublecortin-like kinase (also called ... |
188-265 | 1.75e-04 | |||||
Catalytic domain of the Serine/Threonine Kinase, Doublecortin-like kinase (also called Doublecortin-like and CAM kinase-like); STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. DCKL (or DCAMKL) proteins belong to the doublecortin (DCX) family of proteins which are involved in neuronal migration, neurogenesis, and eye receptor development, among others. Family members typically contain tandem doublecortin (DCX) domains at the N-terminus; DCX domains can bind microtubules and serve as protein-interaction platforms. In addition, DCKL proteins contain a C-terminal kinase domain with similarity to CAMKs. They are involved in the regulation of cAMP signaling. Vertebrates contain three DCKL proteins (DCKL1-3); DCKL1 and 2 also contain a serine, threonine, and proline rich domain (SP), while DCKL3 contains only a single DCX domain instead of tandem domains. The DCKL subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270997 [Multi-domain] Cd Length: 258 Bit Score: 43.85 E-value: 1.75e-04
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| STKc_MLCK-like | cd14006 | Catalytic kinase domain of Myosin Light Chain Kinase-like Serine/Threonine Kinases; STKs ... |
113-267 | 1.79e-04 | |||||
Catalytic kinase domain of Myosin Light Chain Kinase-like Serine/Threonine Kinases; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. This family is composed of MLCKs and related MLCK-like kinase domains from giant STKs such as titin, obscurin, SPEG, Unc-89, Trio, kalirin, and Twitchin. Also included in this family are Death-Associated Protein Kinases (DAPKs) and Death-associated protein kinase-Related Apoptosis-inducing protein Kinase (DRAKs). MLCK phosphorylates myosin regulatory light chain and controls the contraction of all muscle types. Titin, obscurin, Twitchin, and SPEG are muscle proteins involved in the contractile apparatus. The giant STKs are multidomain proteins containing immunoglobulin (Ig), fibronectin type III (FN3), SH3, RhoGEF, PH and kinase domains. Titin, obscurin, Twitchin, and SPEG contain many Ig domain repeats at the N-terminus, while Trio and Kalirin contain spectrin-like repeats. The MLCK-like 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. Pssm-ID: 270908 [Multi-domain] Cd Length: 247 Bit Score: 43.80 E-value: 1.79e-04
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| PKc_DYRK | cd14210 | Catalytic domain of the protein kinase, Dual-specificity tYrosine-phosphorylated and ... |
179-263 | 2.36e-04 | |||||
Catalytic domain of the protein kinase, Dual-specificity tYrosine-phosphorylated and -Regulated Kinase; Protein Kinases (PKs), Dual-specificity tYrosine-phosphorylated and -Regulated Kinase (DYRK) subfamily, catalytic (c) domain. Dual-specificity PKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine (S/T) as well as tyrosine residues on protein substrates. The DYRK subfamily is part of a larger superfamily that includes the catalytic domains of other protein S/T PKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase (PI3K). DYRKs autophosphorylate themselves on tyrosine residues and phosphorylate their substrates exclusively on S/T residues. They play important roles in cell proliferation, differentiation, survival, and development. Vertebrates contain multiple DYRKs (DYRK1-4) and mammals contain two types of DYRK1 proteins, DYRK1A and DYRK1B. DYRK1A is involved in neuronal differentiation and is implicated in the pathogenesis of DS (Down syndrome). DYRK1B plays a critical role in muscle differentiation by regulating transcription, cell motility, survival, and cell cycle progression. It is overexpressed in many solid tumors where it acts as a tumor survival factor. DYRK2 promotes apoptosis in response to DNA damage by phosphorylating the tumor suppressor p53, while DYRK3 promotes cell survival by phosphorylating SIRT1 and promoting p53 deacetylation. DYRK4 is a testis-specific kinase that may function during spermiogenesis. Pssm-ID: 271112 [Multi-domain] Cd Length: 311 Bit Score: 43.69 E-value: 2.36e-04
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| STKc_Rim15_like | cd05611 | Catalytic domain of fungal Rim15-like Protein Serine/Threonine Kinases; STKs catalyze the ... |
111-327 | 2.40e-04 | |||||
Catalytic domain of fungal Rim15-like Protein Serine/Threonine Kinases; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. Members of this group include Saccharomyces cerevisiae Rim15, Schizosaccharomyces pombe cek1, and similar fungal proteins. They contain a central catalytic domain, which contains an insert relative to MAST kinases. In addition, Rim15 contains a C-terminal signal receiver (REC) domain while cek1 contains an N-terminal PAS domain. Rim15 (or Rim15p) functions as a regulator of meiosis. It acts as a downstream effector of PKA and regulates entry into stationary phase (G0). Thus, it plays a crucial role in regulating yeast proliferation, differentiation, and aging. Cek1 may facilitate progression of mitotic anaphase. The Rim15-like subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270762 [Multi-domain] Cd Length: 263 Bit Score: 43.24 E-value: 2.40e-04
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| STKc_Sid2p_like | cd05600 | Catalytic domain of Fungal Sid2p-like Protein Serine/Threonine Kinases; STKs catalyze the ... |
112-266 | 2.42e-04 | |||||
Catalytic domain of Fungal Sid2p-like Protein Serine/Threonine Kinases; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. 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. The Sid2p-like group is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270751 [Multi-domain] Cd Length: 386 Bit Score: 43.87 E-value: 2.42e-04
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| pk1 | PHA03390 | serine/threonine-protein kinase 1; Provisional |
189-294 | 4.50e-04 | |||||
serine/threonine-protein kinase 1; Provisional Pssm-ID: 223069 [Multi-domain] Cd Length: 267 Bit Score: 42.54 E-value: 4.50e-04
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| STKc_CDK_like | cd07829 | Catalytic domain of Cyclin-Dependent protein Kinase-like Serine/Threonine Kinases; STKs ... |
190-265 | 4.97e-04 | |||||
Catalytic domain of Cyclin-Dependent protein Kinase-like Serine/Threonine Kinases; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. 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. The CDK-like subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270823 [Multi-domain] Cd Length: 282 Bit Score: 42.47 E-value: 4.97e-04
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| STKc_MEKK4 | cd06626 | Catalytic domain of the Protein Serine/Threonine Kinase, Mitogen-Activated Protein (MAP) ... |
213-326 | 5.10e-04 | |||||
Catalytic domain of the Protein Serine/Threonine Kinase, Mitogen-Activated Protein (MAP)/Extracellular signal-Regulated Kinase (ERK) Kinase Kinase 4; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. MEKK4 is a MAPK kinase kinase that phosphorylates and 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. The MEKK4 subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270796 [Multi-domain] Cd Length: 265 Bit Score: 42.29 E-value: 5.10e-04
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| STKc_MSK_C | cd14092 | C-terminal catalytic domain of the Serine/Threonine Kinase, Mitogen and stress-activated ... |
221-265 | 5.32e-04 | |||||
C-terminal catalytic domain of the Serine/Threonine Kinase, Mitogen and stress-activated kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. MSKs contain an N-terminal kinase domain (NTD) from the AGC family and a C-terminal kinase domain (CTD) from the CAMK family. MSKs are activated by two major signaling cascades, the Ras-MAPK and p38 stress kinase pathways, in response to various stimuli such as growth factors, hormones, neurotransmitters, cellular stress, and pro-inflammatory cytokines. This triggers phosphorylation in the activation loop (A-loop) of the CTD of MSK. The active CTD phosphorylates the hydrophobic motif (HM) in the C-terminal extension of NTD, which facilitates the phosphorylation of the A-loop and activates the NTD, which in turn phosphorylates downstream targets. MSKs are predominantly nuclear proteins. They are widely expressed in many tissues including heart, brain, lung, liver, kidney, and pancreas. There are two isoforms of MSK, called MSK1 and MSK2. The MSK subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270994 [Multi-domain] Cd Length: 311 Bit Score: 42.67 E-value: 5.32e-04
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| STKc_HAL4_like | cd13994 | Catalytic domain of Fungal Halotolerance protein 4-like Serine/Threonine kinases; STKs ... |
229-326 | 5.66e-04 | |||||
Catalytic domain of Fungal Halotolerance protein 4-like Serine/Threonine kinases; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. This subfamily is composed of HAL4, Saccharomyces cerevisiae Ptk2/Stk2, and similar fungal proteins. Proteins in this subfamily are involved in regulating ion transporters. In budding and fission yeast, HAL4 promotes potassium ion uptake, which increases cellular resistance to other cations such as sodium, lithium, and calcium ions. HAL4 stabilizes the major high-affinity K+ transporter Trk1 at the plasma membrane under low K+ conditions, which prevents endocytosis and vacuolar degradation. Budding yeast Ptk2 phosphorylates and regulates the plasma membrane H+ ATPase, Pma1. The HAL4-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. Pssm-ID: 270896 [Multi-domain] Cd Length: 265 Bit Score: 42.29 E-value: 5.66e-04
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| STKc_SNT7_plant | cd14013 | Catalytic domain of the Serine/Threonine kinase, Plant SNT7; STKs catalyze the transfer of the ... |
111-269 | 5.89e-04 | |||||
Catalytic domain of the Serine/Threonine kinase, Plant SNT7; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. SNT7 is a plant thylakoid-associated kinase that is essential in short- and long-term acclimation responses to cope with various light conditions in order to maintain photosynthetic redox poise for optimal photosynthetic performance. Short-term response involves state transitions over periods of minutes while the long-term response (LTR) occurs over hours to days and involves changing the relative amounts of photosystems I and II. SNT7 acts as a redox sensor and a signal transducer for both responses, which are triggered by the redox state of the plastoquinone (PQ) pool. It is positioned at the top of a phosphorylation cascade that induces state transitions by phosphorylating light-harvesting complex II (LHCII), and triggers the LTR through the phosphorylation of chloroplast proteins. The SNT7 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. Pssm-ID: 270915 [Multi-domain] Cd Length: 318 Bit Score: 42.42 E-value: 5.89e-04
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| PKc_like | cd13968 | Catalytic domain of the Protein Kinase superfamily; The PK superfamily contains the large ... |
113-263 | 8.11e-04 | |||||
Catalytic domain of the Protein Kinase superfamily; The PK superfamily contains the large family of typical PKs that includes serine/threonine kinases (STKs), protein tyrosine kinases (PTKs), and dual-specificity PKs that phosphorylate both serine/threonine and tyrosine residues of target proteins, as well as pseudokinases that lack crucial residues for catalytic activity and/or ATP binding. It also includes phosphoinositide 3-kinases (PI3Ks), aminoglycoside 3'-phosphotransferases (APHs), choline kinase (ChoK), Actin-Fragmin Kinase (AFK), and the atypical RIO and Abc1p-like protein kinases. These proteins catalyze the transfer of the gamma-phosphoryl group from ATP to their target substrates; these include serine/threonine/tyrosine residues in proteins for typical or atypical PKs, the 3-hydroxyl of the inositol ring of D-myo-phosphatidylinositol (PtdIns) or its derivatives for PI3Ks, the 4-hydroxyl of PtdIns for PI4Ks, and other small molecule substrates for APH/ChoK and similar proteins such as aminoglycosides, macrolides, choline, ethanolamine, and homoserine. Pssm-ID: 270870 [Multi-domain] Cd Length: 136 Bit Score: 40.12 E-value: 8.11e-04
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| STKc_Bub1_vert | cd14028 | Catalytic domain of the Serine/Threonine kinase, Vertebrate Spindle assembly checkpoint ... |
204-247 | 1.04e-03 | |||||
Catalytic domain of the Serine/Threonine kinase, Vertebrate Spindle assembly checkpoint protein Bub1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. Bub1 (Budding uninhibited by benzimidazoles 1) contains an N-terminal Bub1/Mad3 homology domain essential for Cdc20 binding, a GLEBS motif for Bub3/kinetochore binding, and a C-terminal kinase domain. It is involved in SAC, a surveillance system that delays metaphase to anaphase transition by blocking the activity of APC/C (the anaphase promoting complex) until all chromosomes achieve proper attachments to the mitotic spindle, to avoid chromosome missegregation. Bub1 contributes to the inhibition of APC/C by phosphorylating its crucial cofactor, Cdc20, rendering it unable to activate APC/C. In addition, Bub1 facilitates the localization to kinetochores of other SAC and motor proteins including Mad1, Mad2, BubR1, and Plk1. It acts as the master organizer of the functional inner centromere. Bub1 also play roles in protecting sister chromatid cohesion and normal metaphase congression. The Bub1 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. Pssm-ID: 270930 [Multi-domain] Cd Length: 290 Bit Score: 41.76 E-value: 1.04e-03
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| PRK09605 | PRK09605 | bifunctional N(6)-L-threonylcarbamoyladenine synthase/serine/threonine protein kinase; |
225-277 | 1.08e-03 | |||||
bifunctional N(6)-L-threonylcarbamoyladenine synthase/serine/threonine protein kinase; Pssm-ID: 236586 [Multi-domain] Cd Length: 535 Bit Score: 42.18 E-value: 1.08e-03
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| PKc_CLK | cd14134 | Catalytic domain of the Dual-specificity protein kinases, CDC-like kinases; Dual-specificity ... |
186-246 | 1.13e-03 | |||||
Catalytic domain of the Dual-specificity protein kinases, CDC-like kinases; Dual-specificity PKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine (S/T) as well as tyrosine residues on protein substrates. CLKs are involved in the phosphorylation and regulation of serine/arginine-rich (SR) proteins, which play a crucial role in pre-mRNA splicing by directing splice site selection. SR proteins are phosphorylated first by SR protein kinases (SRPKs) at the N-terminus, which leads to its assembly into nuclear speckles where splicing factors are stored. CLKs phosphorylate the C-terminal part of SR proteins, causing the nuclear speckles to dissolve and splicing factors to be recruited at sites of active transcription. Based on a conserved "EHLAMMERILG" signature motif which may be crucial for substrate specificity, CLKs are also referred to as LAMMER kinases. CLKs autophosphorylate at tyrosine residues and phosphorylate their substrates exclusively on S/T residues. In Drosophila, the CLK homolog DOA (Darkener of apricot) is essential for embryogenesis and its mutation leads to defects in sexual differentiation, eye formation, and neuronal development. In fission yeast, the CLK homolog Lkh1 is a negative regulator of filamentous growth and asexual flocculation, and is also involved in oxidative stress response. Vertebrates contain mutliple CLK proteins and mammals have four (CLK1-4). The CLK subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 271036 [Multi-domain] Cd Length: 332 Bit Score: 41.78 E-value: 1.13e-03
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| STKc_Mnk2 | cd14173 | Catalytic domain of the Serine/Threonine kinase, Mitogen-activated protein kinase ... |
165-328 | 1.17e-03 | |||||
Catalytic domain of the Serine/Threonine kinase, Mitogen-activated protein kinase signal-integrating kinase 2; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. MAPK signal-integrating kinases (Mnks) are MAPK-activated protein kinases and is comprised by a group of four proteins, produced by alternative splicing from two genes (Mnk1 and Mnk2). The isoforms of Mnk1 (1a/1b) and Mnk2 (2a/2b) differ at their C-termini, with the a-form having a longer C-terminus containing a MAPK-binding region. All Mnks contain a catalytic kinase domain and a polybasic region at the N-terminus which binds importin and the eukaryotic initiation factor eIF4G. The best characterized Mnk substrate is eIF4G, whose phosphorylation may promote the export of certain mRNAs from the nucleus. Mnk also phosphorylate substrates that bind to AU-rich elements that regulate mRNA stability and translation. Mnks have also been implicated in tyrosine kinase receptor signaling, inflammation, and cell prolieration or survival. The Mnk 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. Pssm-ID: 271075 [Multi-domain] Cd Length: 288 Bit Score: 41.55 E-value: 1.17e-03
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| STKc_PAK2 | cd06655 | Catalytic domain of the Serine/Threonine Kinase, p21-activated kinase 2; STKs catalyze the ... |
185-267 | 1.40e-03 | |||||
Catalytic domain of the Serine/Threonine Kinase, p21-activated kinase 2; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. 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. It belongs to the group I PAKs, which 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). PAKs are Rho family GTPase-regulated kinases that serve as important mediators in the function of Cdc42 (cell division cycle 42) and Rac. 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. Pssm-ID: 132986 [Multi-domain] Cd Length: 296 Bit Score: 41.25 E-value: 1.40e-03
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| STKc_PAK1 | cd06654 | Catalytic domain of the Serine/Threonine Kinase, p21-activated kinase 1; STKs catalyze the ... |
185-267 | 1.45e-03 | |||||
Catalytic domain of the Serine/Threonine Kinase, p21-activated kinase 1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. PAK1 is important in the regulation of many cellular processes including cytoskeletal dynamics, cell motility, growth, and proliferation. Although PAK1 has been regarded mainly as a cytosolic protein, recent reports indicate that PAK1 also exists in significant amounts in the nucleus, where it is involved in transcription modulation and in cell cycle regulatory events. PAK1 is also involved in transformation and tumorigenesis. Its overexpression, hyperactivation and increased nuclear accumulation is correlated to breast cancer invasiveness and progression. Nuclear accumulation is also linked to tamoxifen resistance in breast cancer cells. PAK1 belongs to the group I PAKs, which 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). PAKs are Rho family GTPase-regulated kinases that serve as important mediators in the function of Cdc42 (cell division cycle 42) and Rac. 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. Pssm-ID: 270820 [Multi-domain] Cd Length: 296 Bit Score: 41.25 E-value: 1.45e-03
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| YegI | COG4248 | Uncharacterized conserved protein YegI with protein kinase and helix-hairpin-helix DNA-binding ... |
218-333 | 1.57e-03 | |||||
Uncharacterized conserved protein YegI with protein kinase and helix-hairpin-helix DNA-binding domains [General function prediction only]; Pssm-ID: 443390 [Multi-domain] Cd Length: 476 Bit Score: 41.61 E-value: 1.57e-03
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| STKc_PAK | cd06614 | Catalytic domain of the Serine/Threonine Kinase, p21-activated kinase; STKs catalyze the ... |
190-247 | 1.58e-03 | |||||
Catalytic domain of the Serine/Threonine Kinase, p21-activated kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. 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. The PAK subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270789 [Multi-domain] Cd Length: 255 Bit Score: 40.66 E-value: 1.58e-03
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| PKc_YAK1 | cd14212 | Catalytic domain of the Dual-specificity protein kinase, YAK1; Dual-specificity PKs catalyze ... |
221-265 | 1.84e-03 | |||||
Catalytic domain of the Dual-specificity protein kinase, YAK1; Dual-specificity PKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine (S/T) as well as tyrosine residues on protein substrates. This subfamily is composed of proteins with similarity to Saccharomyces cerevisiae YAK1 (or Yak1p), a dual-specificity kinase that autophosphorylates at tyrosine residues and phosphorylates substrates on S/T residues. YAK1 phosphorylates and activates the transcription factors Hsf1 and Msn2, which play important roles in cellular homeostasis during stress conditions including heat shock, oxidative stress, and nutrient deficiency. It also phosphorylates the protein POP2, a component of a complex that regulates transcription, under glucose-deprived conditions. It functions as a part of a glucose-sensing system that is involved in controlling growth in yeast. The YAK1 subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 271114 [Multi-domain] Cd Length: 330 Bit Score: 41.08 E-value: 1.84e-03
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| STKc_ROCK1 | cd05622 | Catalytic domain of the Serine/Threonine Kinase, Rho-associated coiled-coil containing protein ... |
107-351 | 2.32e-03 | |||||
Catalytic domain of the Serine/Threonine Kinase, Rho-associated coiled-coil containing protein kinase 1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. ROCK1 is preferentially expressed in the liver, lung, spleen, testes, and kidney. It mediates signaling from Rho to the actin cytoskeleton. It is implicated in the development of cardiac fibrosis, cardiomyocyte apoptosis, and hyperglycemia. Mice deficient with ROCK1 display eyelids open at birth (EOB) and omphalocele phenotypes due to the disorganization of actin filaments in the eyelids and the umbilical ring. ROCK contains an N-terminal extension, a catalytic kinase domain, and a C-terminal extension, which contains a coiled-coil region encompassing a Rho-binding domain (RBD) and a pleckstrin homology (PH) domain. ROCK is auto-inhibited by the RBD and PH domain interacting with the catalytic domain, and is activated via interaction with Rho GTPases. The ROCK1 subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270772 [Multi-domain] Cd Length: 405 Bit Score: 40.76 E-value: 2.32e-03
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| STKc_STK25 | cd06642 | Catalytic domain of Serine/Threonine Kinase 25 (also called Yeast Sps1/Ste20-related kinase 1); ... |
215-370 | 2.35e-03 | |||||
Catalytic domain of Serine/Threonine Kinase 25 (also called Yeast Sps1/Ste20-related kinase 1); STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. STK25 is also called Ste20/oxidant stress response kinase 1 (SOK1) or yeast Sps1/Ste20-related kinase 1 (YSK1). It is localized in the Golgi apparatus through its interaction with the Golgi matrix protein GM130. It may be involved in the regulation of cell migration and polarization. STK25 binds and phosphorylates CCM3 (cerebral cavernous malformation 3), also called PCD10 (programmed cell death 10), and may play a role in apoptosis. Human STK25 is a candidate gene responsible for pseudopseudohypoparathyroidism (PPHP), a disease that shares features with the Albright hereditary osteodystrophy (AHO) phenotype. The STK25 subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270810 [Multi-domain] Cd Length: 277 Bit Score: 40.43 E-value: 2.35e-03
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| STKc_CaMKI | cd14083 | Catalytic domain of the Serine/Threonine kinase, Calcium/calmodulin-dependent protein kinase ... |
212-274 | 2.65e-03 | |||||
Catalytic domain of the Serine/Threonine kinase, Calcium/calmodulin-dependent protein kinase Type I; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. CaMKs are multifunctional calcium and calmodulin (CaM) stimulated STKs involved in cell cycle regulation. There are several types of CaMKs including CaMKI, CaMKII, and CaMKIV. In vertebrates, there are four CaMKI proteins encoded by different genes (alpha, beta, gamma, and delta), each producing at least one variant. CaMKs contain an N-terminal catalytic domain and a C-terminal regulatory domain that harbors a CaM binding site. CaMKI proteins are monomeric and they play pivotal roles in the nervous system, including long-term potentiation, dendritic arborization, neurite outgrowth, and the formation of spines, synapses, and axons. In addition, they may be involved in osteoclast differentiation and bone resorption. The CaMKI subfamily is part of a larger superfamily that includes the catalytic domains of other protein kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270985 [Multi-domain] Cd Length: 259 Bit Score: 40.05 E-value: 2.65e-03
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| STKc_IRE1 | cd13982 | Catalytic domain of the Serine/Threonine kinase, Inositol-requiring protein 1; STKs catalyze ... |
221-267 | 2.72e-03 | |||||
Catalytic domain of the Serine/Threonine kinase, Inositol-requiring protein 1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. IRE1, also called Endoplasmic reticulum (ER)-to-nucleus signaling protein (or ERN), is an ER-localized type I transmembrane protein with kinase and endoribonuclease domains in the cytoplasmic side. It acts as an ER stress sensor and is the oldest and most conserved component of the unfolded protein response (UPR) in eukaryotes. The UPR is activated when protein misfolding is detected in the ER in order to decrease the synthesis of new proteins and increase the capacity of the ER to cope with the stress. During ER stress, IRE1 dimerizes and forms oligomers, allowing the kinase domain to undergo trans-autophosphorylation. This leads to a conformational change that stimulates its endoribonuclease activity and results in the cleavage of its mRNA substrate, HAC1 in yeast and XBP1 in metazoans, promoting a splicing event that enables translation into a transcription factor which activates the UPR. Mammals contain two IRE1 proteins, IRE1alpha (or ERN1) and IRE1beta (or ERN2). The Ire1 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. Pssm-ID: 270884 [Multi-domain] Cd Length: 269 Bit Score: 40.33 E-value: 2.72e-03
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| PTZ00024 | PTZ00024 | cyclin-dependent protein kinase; Provisional |
184-268 | 2.81e-03 | |||||
cyclin-dependent protein kinase; Provisional Pssm-ID: 240233 [Multi-domain] Cd Length: 335 Bit Score: 40.51 E-value: 2.81e-03
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| STKc_CRIK | cd05601 | Catalytic domain of the Serine/Threonine Kinase, Citron Rho-interacting kinase; STKs catalyze ... |
168-267 | 2.84e-03 | |||||
Catalytic domain of the Serine/Threonine Kinase, Citron Rho-interacting kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. CRIK (also called citron kinase) is an effector of the small GTPase Rho. It plays an important function during cytokinesis and affects its contractile process. CRIK-deficient mice show severe ataxia and epilepsy as a result of abnormal cytokinesis and massive apoptosis in neuronal precursors. A Down syndrome critical region protein TTC3 interacts with CRIK and inhibits CRIK-dependent neuronal differentiation and neurite extension. CRIK contains a catalytic domain, a central coiled-coil domain, and a C-terminal region containing a Rho-binding domain (RBD), a zinc finger, and a pleckstrin homology (PH) domain, in addition to other motifs. The CRIK subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270752 [Multi-domain] Cd Length: 328 Bit Score: 40.37 E-value: 2.84e-03
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| STKc_SRPK | cd14136 | Catalytic domain of the Serine/Threonine Kinase, Serine-aRginine Protein Kinase; STKs catalyze ... |
179-265 | 3.03e-03 | |||||
Catalytic domain of the Serine/Threonine Kinase, Serine-aRginine Protein Kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. SRPKs phosphorylate and regulate splicing factors from the SR protein family by specifically phosphorylating multiple serine residues residing in SR/RS dipeptide motifs (also known as RS domains). Phosphorylation of the RS domains enhances interaction with transportin SR and facilitates entry of the SR proteins into the nucleus. SRPKs contain a nonconserved insert domain, within the well-conserved catalytic kinase domain, that regulates their subcellular localization. They play important roles in mediating pre-mRNA processing and mRNA maturation, as well as other cellular functions such as chromatin reorganization, cell cycle and p53 regulation, and metabolic signaling. Vertebrates contain three distinct SRPKs, called SRPK1-3. The SRPK homolog in budding yeast, Sky1p, recognizes and phosphorylates its substrate Npl3p, which lacks a classic RS domain but contains a single RS dipeptide at the C-terminus of its RGG domain. Npl3p is a shuttling heterogeneous nuclear ribonucleoprotein (hnRNP) that exports a distinct class of mRNA from the nucleus to the cytoplasm. The SRPK subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 271038 [Multi-domain] Cd Length: 320 Bit Score: 40.25 E-value: 3.03e-03
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| STKc_ULK3 | cd14121 | Catalytic domain of the Serine/Threonine kinase, Unc-51-like kinase 3; STKs catalyze the ... |
224-325 | 3.78e-03 | |||||
Catalytic domain of the Serine/Threonine kinase, Unc-51-like kinase 3; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. The ATG1/ULK complex is conserved from yeast to humans and it plays a critical role in the initiation of autophagy, the intracellular system that leads to the lysosomal degradation of cellular components and their recycling into basic metabolic units. ULK3 mRNA is up-regulated in fibroblasts after Ras-induced senescence, and its overexpression induces both autophagy and senescence in a fibroblast cell line. ULK3, through its kinase activity, positively regulates Gli proteins, mediators of the Sonic hedgehog (Shh) signaling pathway that is implicated in tissue homeostasis maintenance and neurogenesis. It is inhibited by binding to Suppressor of Fused (Sufu). The ULK3 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. Pssm-ID: 271023 [Multi-domain] Cd Length: 252 Bit Score: 39.58 E-value: 3.78e-03
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| STKc_HIPK2 | cd14227 | Catalytic domain of the Serine/Threonine Kinase, Homeodomain-Interacting Protein Kinase 2; ... |
107-288 | 3.91e-03 | |||||
Catalytic domain of the Serine/Threonine Kinase, Homeodomain-Interacting Protein Kinase 2; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. HIPK2, the most studied HIPK, is a coregulator of many transcription factors and cofactors including homeodomain proteins (Nkx and HOX families), Smad1-4, Pax6, c-Myb, AML1, the histone acetyltransferase p300, and the tumor repressor p53, among others. It regulates gene transcription during development and in DNA damage response (DDR), and mediates cell processes such as apoptosis, survival, differentiation, and proliferation. HIPK2 mediates apoptosis by phosphorylating and activating p53 during DDR, resulting in the activation of apoptotic genes. In the absence of p53, HIPK2 targets the anti-apoptotic corepressor C-terminal binding protein (CtBP), leading to CtBP's degradation and the promotion of apoptosis. HIPKs, originally identified by their ability to bind homeobox factors, are nuclear proteins containing catalytic kinase and homeobox-interacting domains as well as a PEST region overlapping with the speckle-retention signal (SRS). The HIPK2 subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 271129 [Multi-domain] Cd Length: 355 Bit Score: 40.07 E-value: 3.91e-03
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| STKc_PSKH1 | cd14087 | Catalytic domain of the Protein Serine/Threonine kinase H1; STKs catalyze the transfer of the ... |
229-266 | 3.91e-03 | |||||
Catalytic domain of the Protein Serine/Threonine kinase H1; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. PSKH1 is an autophosphorylating STK that is expressed ubiquitously and exhibits multiple intracellular localizations including the centrosome, Golgi apparatus, and splice factor compartments. It contains a catalytic kinase domain and an N-terminal SH4-like motif that is acylated to facilitate membrane attachment. PSKH1 plays a rile in the maintenance of the Golgi apparatus, an important organelle within the secretory pathway. It may also function as a novel splice factor and a regulator of prostate cancer cell growth. The PSKH1 subfamily is part of a larger superfamily that includes the catalytic domains of other protein kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270989 [Multi-domain] Cd Length: 259 Bit Score: 39.82 E-value: 3.91e-03
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| STKc_CK2_alpha | cd14132 | Catalytic subunit (alpha) of the Serine/Threonine Kinase, Casein Kinase 2; STKs catalyze the ... |
230-265 | 4.16e-03 | |||||
Catalytic subunit (alpha) of the Serine/Threonine Kinase, Casein Kinase 2; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. CK2 is a tetrameric protein with two catalytic (alpha) and two regulatory (beta) subunits. It is constitutively active and ubiquitously expressed, and is found in the cytoplasm, nucleus, as well as in the plasma membrane. It phosphorylates a wide variety of substrates including gylcogen synthase, cell cycle proteins, nuclear proteins (e.g. DNA topoisomerase II), and ion channels (e.g. ENaC), among others. It may be considered a master kinase controlling the activity or lifespan of many other kinases and exerting its effect over cell fate, gene expression, protein synthesis and degradation, and viral infection. CK2 is implicated in every stage of the cell cycle and is required for cell cycle progression. It plays crucial roles in cell differentiation, proliferation, and survival, and is thus implicated in cancer. CK2 is not an oncogene by itself but elevated CK2 levels create an environment that enhances the survival of tumor cells. The CK2 subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 271034 [Multi-domain] Cd Length: 306 Bit Score: 39.83 E-value: 4.16e-03
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| STKc_PAK3 | cd06656 | Catalytic domain of the Protein Serine/Threonine Kinase, p21-activated kinase 3; Serine ... |
185-267 | 4.33e-03 | |||||
Catalytic domain of the Protein Serine/Threonine Kinase, p21-activated kinase 3; Serine/threonine kinases (STKs), p21-activated kinase (PAK) 3, 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. PAK3 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). PAK3 is highly expressed in the brain. It is implicated in neuronal plasticity, synapse formation, dendritic spine morphogenesis, cell cycle progression, neuronal migration, and apoptosis. Inactivating mutations in the PAK3 gene cause X-linked non-syndromic mental retardation, the severity of which depends on the site of the mutation. Pssm-ID: 132987 [Multi-domain] Cd Length: 297 Bit Score: 39.70 E-value: 4.33e-03
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| PKc_Myt1 | cd14050 | Catalytic domain of the Dual-specificity protein kinase, Myt1; Dual-specificity PKs catalyze ... |
107-294 | 4.51e-03 | |||||
Catalytic domain of the Dual-specificity protein kinase, Myt1; Dual-specificity PKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine as well as tyrosine residues on protein substrates. Myt1 is a cytoplasmic cell cycle checkpoint kinase that can keep the cyclin-dependent kinase CDK1 in an inactive state through phosphorylation of N-terminal thr (T14) and tyr (Y15) residues, leading to the delay of meiosis I entry. Meiotic progression is ensured by a two-step inhibition and downregulation of Myt1 by CDK1/XRINGO and p90Rsk during oocyte maturation. In addition, Myt1 targets cyclin B1/B2 and is essential for Golgi and ER assembly during telophase. In Drosophila, Myt1 may be a downstream target of Notch during eye development. The Myt1 subfamily is part of a larger superfamily that includes the catalytic domains of other protein serine/threonine PKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270952 [Multi-domain] Cd Length: 249 Bit Score: 39.21 E-value: 4.51e-03
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| STKc_MAK_like | cd07830 | Catalytic domain of Male germ cell-Associated Kinase-like Serine/Threonine Kinases; STKs ... |
226-265 | 4.67e-03 | |||||
Catalytic domain of Male germ cell-Associated Kinase-like Serine/Threonine Kinases; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. This subfamily is composed of human MAK and MAK-related kinase (MRK), Saccharomyces cerevisiae Ime2p, Schizosaccharomyces pombe Mei4-dependent protein 3 (Mde3) and Pit1, Caenorhabditis elegans dyf-5, Arabidopsis thaliana MHK, and similar proteins. These proteins play important roles during meiosis. MAK is highly expressed in testicular cells specifically in the meiotic phase, but is not essential for spermatogenesis and fertility. It functions as a coactivator of the androgen receptor in prostate cells. MRK, also called Intestinal Cell Kinase (ICK), is expressed ubiquitously, with highest expression in the ovary and uterus. A missense mutation in MRK causes endocrine-cerebro-osteodysplasia, suggesting that this protein plays an important role in the development of many organs. MAK and MRK may be involved in regulating cell cycle and cell fate. Ime2p is a meiosis-specific kinase that is important during meiotic initiation and during the later stages of meiosis. Mde3 functions downstream of the transcription factor Mei-4 which is essential for meiotic prophase I. The MAK-like subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270824 [Multi-domain] Cd Length: 283 Bit Score: 39.44 E-value: 4.67e-03
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| STKc_PRKX_like | cd05612 | Catalytic domain of PRKX-like Protein Serine/Threonine Kinases; STKs catalyze the transfer of ... |
219-270 | 4.67e-03 | |||||
Catalytic domain of PRKX-like Protein Serine/Threonine Kinases; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. Members of this group include human PRKX (X chromosome-encoded protein kinase), Drosophila DC2, and similar proteins. PRKX is present in many tissues including fetal and adult brain, kidney, and lung. The PRKX gene is located in the Xp22.3 subregion and has a homolog called PRKY on the Y chromosome. An abnormal interchange between PRKX aand PRKY leads to the sex reversal disorder of XX males and XY females. PRKX is implicated in granulocyte/macrophage lineage differentiation, renal cell epithelial migration, and tubular morphogenesis in the developing kidney. The PRKX-like subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270763 [Multi-domain] Cd Length: 292 Bit Score: 39.73 E-value: 4.67e-03
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| STKc_Twitchin_like | cd14114 | The catalytic domain of the Giant Serine/Threonine Kinases, Twitchin and Projectin; STKs ... |
107-328 | 4.68e-03 | |||||
The catalytic domain of the Giant Serine/Threonine Kinases, Twitchin and Projectin; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. This subfamily is composed of Caenorhabditis elegans and Aplysia californica Twitchin, Drosophila melanogaster Projectin, and similar proteins. These are very large muscle proteins containing multiple immunoglobulin (Ig)-like and fibronectin type III (FN3) domains and a single kinase domain near the C-terminus. Twitchin and Projectin are both associated with thick filaments. Twitchin is localized in the outer parts of A-bands and is involved in regulating muscle contraction. It interacts with the myofibrillar proteins myosin and actin in a phosphorylation-dependent manner, and may be involved in regulating the myosin cross-bridge cycle. The kinase activity of Twitchen is activated by Ca2+ and the Ca2+ binding protein S100A1. Projectin is associated with the end of thick filaments and is a component of flight muscle connecting filaments. The kinase domain of Projectin may play roles in autophosphorylation and transphosphorylation, which impact the formation of myosin filaments. The Twitchin-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. Pssm-ID: 271016 [Multi-domain] Cd Length: 259 Bit Score: 39.49 E-value: 4.68e-03
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| PKc_Mps1 | cd14131 | Catalytic domain of the Dual-specificity Mitotic checkpoint protein kinase, Monopolar spindle ... |
230-335 | 4.70e-03 | |||||
Catalytic domain of the Dual-specificity Mitotic checkpoint protein kinase, Monopolar spindle 1 (also called TTK); Dual-specificity PKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine as well as tyrosine residues on protein substrates. TTK/Mps1 is a spindle checkpoint kinase that was first discovered due to its necessity in centrosome duplication in budding yeast. It was later found to function in the spindle assembly checkpoint, which monitors the proper attachment of chromosomes to the mitotic spindle. In yeast, substrates of Mps1 include the spindle pole body components Spc98p, Spc110p, and Spc42p. The TTK/Mps1 subfamily is part of a larger superfamily that includes the catalytic domains of other protein serine/threonine PKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 271033 [Multi-domain] Cd Length: 271 Bit Score: 39.50 E-value: 4.70e-03
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| STKc_ATG1_ULK_like | cd14009 | Catalytic domain of the Serine/Threonine kinases, Autophagy-related protein 1 and Unc-51-like ... |
226-265 | 4.88e-03 | |||||
Catalytic domain of the Serine/Threonine kinases, Autophagy-related protein 1 and Unc-51-like kinases; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. This subfamily includes yeast ATG1 and metazoan homologs including vertebrate ULK1-3. The ATG1/ULK complex is conserved from yeast to humans and it plays a critical role in the initiation of autophagy, the intracellular system that leads to the lysosomal degradation of cellular components and their recycling into basic metabolic units. It is involved in nutrient sensing and signaling, the assembly of autophagy factors and the execution of autophagy. In metazoans, ATG1 homologs display additional functions. Unc-51 and ULKs have been implicated in neuronal and axonal development. The ATG1/ULK 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. Pssm-ID: 270911 [Multi-domain] Cd Length: 251 Bit Score: 39.13 E-value: 4.88e-03
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| pknD | PRK13184 | serine/threonine-protein kinase PknD; |
107-327 | 5.02e-03 | |||||
serine/threonine-protein kinase PknD; Pssm-ID: 183880 [Multi-domain] Cd Length: 932 Bit Score: 40.14 E-value: 5.02e-03
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| STKc_KIS | cd14020 | Catalytic domain of the Serine/Threonine Kinase, Kinase Interacting with Stathmin (also called ... |
112-267 | 5.07e-03 | |||||
Catalytic domain of the Serine/Threonine Kinase, Kinase Interacting with Stathmin (also called U2AF homology motif (UHM) kinase 1); STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. KIS (or UHMK1) contains an N-terminal kinase domain and a C-terminal domain with a UHM motif, a protein interaction motif initially found in the pre-mRNA splicing factor U2AF. It phosphorylates the splicing factor SF1, which enhances binding to the splice site to promote spliceosome assembly. KIS was first identified as a kinase that interacts with stathmin, a phosphoprotein that plays a role in axon development and microtubule dynamics. It localizes in RNA granules in neurons and is important in neurite outgrowth. The KIS/UHMK1 subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270922 [Multi-domain] Cd Length: 285 Bit Score: 39.53 E-value: 5.07e-03
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| STKc_CDK7 | cd07841 | Catalytic domain of the Serine/Threonine Kinase, Cyclin-Dependent protein Kinase 7; STKs ... |
107-265 | 5.71e-03 | |||||
Catalytic domain of the Serine/Threonine Kinase, Cyclin-Dependent protein Kinase 7; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. 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. CDKs belong to a large family of STKs that are regulated by their cognate cyclins. Together, they are involved in the control of cell-cycle progression, transcription, and neuronal function. The CDK7 subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270833 [Multi-domain] Cd Length: 298 Bit Score: 39.48 E-value: 5.71e-03
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| STKc_GRK3 | cd05633 | Catalytic domain of the Serine/Threonine Kinase, G protein-coupled Receptor Kinase 3; STKs ... |
107-333 | 5.80e-03 | |||||
Catalytic domain of the Serine/Threonine Kinase, G protein-coupled Receptor Kinase 3; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. GRK3, also called beta-adrenergic receptor kinase 2 (beta-ARK2), is widely expressed in many tissues. It is involved in modulating the cholinergic response of airway smooth muscles, and also plays a role in dopamine receptor regulation. GRK3-deficient mice show a lack of olfactory receptor desensitization and altered regulation of the M2 muscarinic airway. GRK3 promoter polymorphisms may also be associated with bipolar disorder. GRK3 contains an N-terminal RGS homology (RH) domain, a central catalytic domain, and C-terminal pleckstrin homology (PH) domain that mediates PIP2 and G protein betagamma-subunit translocation to the membrane. GRKs phosphorylate and regulate G protein-coupled receptors (GPCRs), the largest superfamily of cell surface receptors which regulate some part of nearly all physiological functions. Phosphorylated GPCRs bind to arrestins, which prevents further G protein signaling despite the presence of activating ligand. The GRK3 subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270781 [Multi-domain] Cd Length: 346 Bit Score: 39.66 E-value: 5.80e-03
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| STKc_DMPK_like | cd05597 | Catalytic domain of Myotonic Dystrophy protein kinase (DMPK)-like Serine/Threonine Kinases; ... |
212-250 | 6.31e-03 | |||||
Catalytic domain of Myotonic Dystrophy protein kinase (DMPK)-like Serine/Threonine Kinases; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. The DMPK-like subfamily is composed of DMPK and DMPK-related cell division control protein 42 (Cdc42) binding kinase (MRCK). DMPK is expressed in skeletal and cardiac muscles, and in central nervous tissues. The functional role of DMPK is not fully understood. It may play a role in the signal transduction and homeostasis of calcium. The DMPK gene is implicated in myotonic dystrophy 1 (DM1), an inherited multisystemic disorder with symptoms that include muscle hyperexcitability, progressive muscle weakness and wasting, cataract development, testicular atrophy, and cardiac conduction defects. The genetic basis for DM1 is the mutational expansion of a CTG repeat in the 3'-UTR of DMPK. MRCK is activated via interaction with the small GTPase Cdc42. MRCK/Cdc42 signaling mediates myosin-dependent cell motility. Three isoforms of MRCK are known, named alpha, beta and gamma. MRCKgamma is expressed in heart and skeletal muscles, unlike MRCKalpha and MRCKbeta, which are expressed ubiquitously. The DMPK-like subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270748 [Multi-domain] Cd Length: 331 Bit Score: 39.25 E-value: 6.31e-03
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| STKc_SnRK3 | cd14663 | Catalytic domain of the Serine/Threonine Kinases, Sucrose nonfermenting 1-related protein ... |
223-276 | 6.95e-03 | |||||
Catalytic domain of the Serine/Threonine Kinases, Sucrose nonfermenting 1-related protein kinase subfamily 3; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. The SnRKs form three different subfamilies designated SnRK1-3. SnRK3 is represented in this cd. The SnRK3 group contains members also known as CBL-interacting protein kinase, salt overly sensitive 2, SOS3-interacting proteins and protein kinase S. These kinases interact with calcium-binding proteins such as SOS3, SCaBPs, and CBL proteins, and are involved in responses to salt stress and in sugar and ABA signaling. The SnRKs belong to a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 271133 [Multi-domain] Cd Length: 256 Bit Score: 38.92 E-value: 6.95e-03
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| STKc_beta_ARK | cd05606 | Catalytic domain of the Serine/Threonine Kinase, beta-adrenergic receptor kinase; STKs ... |
219-337 | 8.51e-03 | |||||
Catalytic domain of the Serine/Threonine Kinase, beta-adrenergic receptor kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. The beta-ARK group is composed of GRK2, GRK3, and similar proteins. GRK2 and GRK3 are both widely expressed in many tissues, although GRK2 is present at higher levels. They contain an N-terminal RGS homology (RH) domain, a central catalytic domain, and C-terminal pleckstrin homology (PH) domain that mediates PIP2 and G protein betagamma-subunit translocation to the membrane. GRK2 (also called beta-ARK or beta-ARK1) is important in regulating several cardiac receptor responses. It plays a role in cardiac development and in hypertension. Deletion of GRK2 in mice results in embryonic lethality, caused by hypoplasia of the ventricular myocardium. GRK2 also plays important roles in the liver (as a regulator of portal blood pressure), in immune cells, and in the nervous system. Altered GRK2 expression has been reported in several disorders including major depression, schizophrenia, bipolar disorder, and Parkinsonism. GRKs phosphorylate and regulate G protein-coupled receptors (GPCRs), the largest superfamily of cell surface receptors which regulate some part of nearly all physiological functions. Phosphorylated GPCRs bind to arrestins, which prevents further G protein signaling despite the presence of activating ligand. The beta-ARK subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270757 [Multi-domain] Cd Length: 279 Bit Score: 38.57 E-value: 8.51e-03
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| STKc_PAK_II | cd06648 | Catalytic domain of the Serine/Threonine Kinase, Group II p21-activated kinase; STKs catalyze ... |
185-251 | 9.63e-03 | |||||
Catalytic domain of the Serine/Threonine Kinase, Group II p21-activated kinase; STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. 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. PAKs are Rho family GTPase-regulated kinases that serve as important mediators in the function of Cdc42 (cell division cycle 42) and Rac. The PAK subfamily is part of a larger superfamily that includes the catalytic domains of other STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase. Pssm-ID: 270815 [Multi-domain] Cd Length: 261 Bit Score: 38.58 E-value: 9.63e-03
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