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JAK3

Gene
JAK3
Protein
Tyrosine-protein kinase JAK3
Organism
Homo sapiens
Length
1124 amino acids
Function
Non-receptor tyrosine kinase involved in various processes such as cell growth, development, or differentiation. Mediates essential signaling events in both innate and adaptive immunity and plays a crucial role in hematopoiesis during T-cells development. In the cytoplasm, plays a pivotal role in signal transduction via its association with type I receptors sharing the common subunit gamma such as IL2R, IL4R, IL7R, IL9R, IL15R and IL21R. Following ligand binding to cell surface receptors, phosphorylates specific tyrosine residues on the cytoplasmic tails of the receptor, creating docking sites for STATs proteins. Subsequently, phosphorylates the STATs proteins once they are recruited to the receptor. Phosphorylated STATs then form homodimer or heterodimers and translocate to the nucleus to activate gene transcription. For example, upon IL2R activation by IL2, JAK1 and JAK3 molecules bind to IL2R beta (IL2RB) and gamma chain (IL2RG) subunits inducing the tyrosine phosphorylation of both receptor subunits on their cytoplasmic domain. Then, STAT5A AND STAT5B are recruited, phosphorylated and activated by JAK1 and JAK3. Once activated, dimerized STAT5 translocates to the nucleus and promotes the transcription of specific target genes in a cytokine-specific fashion.
Similarity
Belongs to the protein kinase superfamily. Tyr protein kinase family. JAK subfamily.
Mass
125.099 kDa
Sequence
MAPPSEETPLIPQRSCSLLSTEAGALHVLLPARGPGPPQRLSFSFGDHLAEDLCVQAAKASGILPVYHSLFALATEDLSCWFPPSHIFSVEDASTQVLLYRIRFYFPNWFGLEKCHRFGLRKDLASAILDLPVLEHLFAQHRSDLVSGRLPVGLSLKEQGECLSLAVLDLARMAREQAQRPGELLKTVSYKACLPPSLRDLIQGLSFVTRRRIRRTVRRALRRVAACQADRHSLMAKYIMDLERLDPAGAAETFHVGLPGALGGHDGLGLLRVAGDGGIAWTQGEQEVLQPFCDFPEIVDISIKQAPRVGPAGEHRLVTVTRTDNQILEAEFPGLPEALSFVALVDGYFRLTTDSQHFFCKEVAPPRLLEEVAEQCHGPITLDFAINKLKTGGSRPGSYVLRRSPQDFDSFLLTVCVQNPLGPDYKGCLIRRSPTGTFLLVGLSRPHSSLRELLATCWDGGLHVDGVAVTLTSCCIPRPKEKSNLIVVQRGHSPPTSSLVQPQSQYQLSQMTFHKIPADSLEWHENLGHGSFTKIYRGCRHEVVDGEARKTEVLLKVMDAKHKNCMESFLEAASLMSQVSYRHLVLLHGVCMAGDSTMVQEFVHLGAIDMYLRKRGHLVPASWKLQVVKQLAYALNYLEDKGLPHGNVSARKVLLAREGADGSPPFIKLSDPGVSPAVLSLEMLTDRIPWVAPECLREAQTLSLEADKWGFGATVWEVFSGVTMPISALDPAKKLQFYEDRQQLPAPKWTELALLIQQCMAYEPVQRPSFRAVIRDLNSLISSDYELLSDPTPGALAPRDGLWNGAQLYACQDPTIFEERHLKYISQLGKGNFGSVELCRYDPLGDNTGALVAVKQLQHSGPDQQRDFQREIQILKALHSDFIVKYRGVSYGPGRQSLRLVMEYLPSGCLRDFLQRHRARLDASRLLLYSSQICKGMEYLGSRRCVHRDLAARNILVESEAHVKIADFGLAKLLPLDKDYYVVREPGQSPIFWYAPESLSDNIFSRQSDVWSFGVVLYELFTYCDKSCSPSAEFLRMMGCERDVPALCRLLELLEEGQRLPAPPACPAEVHELMKLCWAPSPQDRPSFSALGPQLDMLWSGSRGCETHAFTAHPEGKHHSLSFS

Gene
Jak3
Protein
Tyrosine-protein kinase JAK3
Organism
Mus musculus
Length
1100 amino acids
Function
Non-receptor tyrosine kinase involved in various processes such as cell growth, development, or differentiation. Mediates essential signaling events in both innate and adaptive immunity and plays a crucial role in hematopoiesis during T-cells development. In the cytoplasm, plays a pivotal role in signal transduction via its association with type I receptors sharing the common subunit gamma such as IL2R, IL4R, IL7R, IL9R, IL15R and IL21R. Following ligand binding to cell surface receptors, phosphorylates specific tyrosine residues on the cytoplasmic tails of the receptor, creating docking sites for STATs proteins. Subsequently, phosphorylates the STATs proteins once they are recruited to the receptor. Phosphorylated STATs then form homodimer or heterodimers and translocate to the nucleus to activate gene transcription. For example, upon IL2R activation by IL2, JAK1 and JAK3 molecules bind to IL2R beta (IL2RB) and gamma chain (IL2RG) subunits inducing the tyrosine phosphorylation of both receptor subunits on their cytoplasmic domain. Then, STAT5A AND STAT5B are recruited, phosphorylated and activated by JAK1 and JAK3. Once activated, dimerized STAT5 translocates to the nucleus and promotes the transcription of specific target genes in a cytokine-specific fashion.
Similarity
Belongs to the protein kinase superfamily. Tyr protein kinase family. JAK subfamily.
Mass
122.641 kDa
Sequence
MAPPSEETPLIPQRSCSLSSSEAGALHVLLPPRGPGPPQRLSFSFGDYLAEDLCVRAAKACGILPVYHSLFALATEDFSCWFPPSHIFCIEDVDTQVLVYRLRFYFPDWFGLETCHRFGLRKDLTSAILDLHVLEHLFAQHRSDLVSGRLPVGLSMKEQGEFLSLAVLDLAQMAREQAQRPGELLKTVSYKACLPPSLRDVIQGQNFVTRRRIRRTVVLALRRVVACQADRYALMAKYILDLERLHPAATTETFRVGLPGAQEEPGLLRVAGDNGISWSSGDQELFQTFCDFPEIVDVSIKQAPRVGPAGEHRLVTVTRMDGHILEAEFPGLPEALSFVALVDGYFRLICDSRHYFCKEVAPPRLLEEEAELCHGPITLDFAIHKLKAAGSLPGTYILRRSPQDYDSFLLTACVQTPLGPDYKGCLIRQDPSGAFSLVGLSQPHRSLRELLAACWNSGLRVDGAALNLTSCCAPRPKEKSNLIVVRRGCTPAPAPGCSPSCCALTQLSFHTIPTDSLEWHENLGHGSFTKIFRGRRREVVDGETHDSEVLLKVMDSRHRNCMESFLEAASLMSQVSYPHLVLLHGVCMAGDSIMVQEFVYLGAIDMYLRKRGHLVSASWKLQVTKQLAYALNYLEDKGLPHGNVSARKVLLAREGGDGNPPFIKLSDPGVSPTVLSLEMLTDRIPWVAPECLQEAQTLCLEADKWGFGATTWEVFSGGPAHITSLEPAKKLKFYEDQGQLPALKWTELAGLITQCMAYDPGRRPSFRAILRDLNGLITSDYELLSDPTPGIPSPRDELCGGAQLYACQDPAIFEERHLKYISLLGKGNFGSVELCRYDPLGDNTGPLVAVKQLQHSGPDQQRDFQREIQILKALHSDFIVKYRGVSYGPGRQSLRLVMEYLPSGCLRDFLQRHRARLHTDRLLLFAWQICKGMEYLGARRCVHRDLAARNILVESEAHVKIADFGLAKLLPLGKDYYVVREPGQSPIFWYAPESLSDNIFSRQSDVWSFGVVLYELFTYCDKSCSPSAEFLRMMGPEREGPPLCRLLELLAEGRRLPPPPTCPTEVQELMQLCWAPSPHDRPAFGTLSPQLDALWRGRPG

Gene
Jak3
Protein
Tyrosine-protein kinase JAK3
Organism
Rattus norvegicus
Length
1100 amino acids
Function
Non-receptor tyrosine kinase involved in various processes such as cell growth, development, or differentiation. Mediates essential signaling events in both innate and adaptive immunity and plays a crucial role in hematopoiesis during T-cells development. In the cytoplasm, plays a pivotal role in signal transduction via its association with type I receptors sharing the common subunit gamma such as IL2R, IL4R, IL7R, IL9R, IL15R and IL21R. Following ligand binding to cell surface receptors, phosphorylates specific tyrosine residues on the cytoplasmic tails of the receptor, creating docking sites for STATs proteins. Subsequently, phosphorylates the STATs proteins once they are recruited to the receptor. Phosphorylated STATs then form homodimer or heterodimers and translocate to the nucleus to activate gene transcription. For example, upon IL2R activation by IL2, JAK1 and JAK3 molecules bind to IL2R beta (IL2RB) and gamma chain (IL2RG) subunits inducing the tyrosine phosphorylation of both receptor subunits on their cytoplasmic domain. Then, STAT5A AND STAT5B are recruited, phosphorylated and activated by JAK1 and JAK3. Once activated, dimerized STAT5 translocates to the nucleus and promotes the transcription of specific target genes in a cytokine-specific fashion (By similarity).
Similarity
Belongs to the protein kinase superfamily. Tyr protein kinase family. JAK subfamily.
Mass
122.561 kDa
Sequence
MAPPSEETPLISQRSCSLSSSEAGALHVLLPPRGPGPPQRLSFSFGDYLAEDLCVRAAKACGILPVYHSLFALATEDLSCWFPPSHIFSIEDVDTQVLVYRLRFYFPGWFGLETCHRFGLHKDLTSAILDVHVLEHLFAQHRSDLVSGRLPVGLSLKDQGEFLSLAVLDLAQMARKQAQRPGELLKSVSYKACLPPSLRDLIQGQSFVTRRRIRRTVVQALAPCSSLPSRPYALMAKYILDLERLHPAATTESFLVGLPGAQEEPGCLRVTGDNGIAWSSKDQELFQTFCDFPEIVDVSIKQAPRVGPAGEHRLVTITRMDGHILEAEFPGLPEALSFVALVDGYFRLICDSRHFFCKEVAPPRLLEEEAELCHGPITLDFAIHKLKAAGSLPGSYILRRSPQDYDSFLLTACVQTPLGPDYKGCLIRQDPSGAFSLVGLSQLHRSLQELLTACWHSGLQVDGTALNLTSCCVPRPKEKSNLIVVRRGRNPTPAPGHSPSCCALTKLSFHTIPADSLEWHENLGHGSFTKIFHGHRREVVDGETHDTEVLLKVMDSRHQNCMESFLEAASLMSQVSYPHLVLLHGVCMAGDSIMVQEFVYLGAIDTYLRKRGHLVPASWKLQVTKQLAYALNYLEDKGLPHGNVSARKVLLAREGVDGNPPFIKLSDPGVSPTVLSLEMLTDRIPWVAPECLQEAGTLNLEADKWGFGATTWEVFSGAPMHITSLEPAKKLKFYEDRGQLPALKWTELEGLIAQCMAYDPGRRPSFRAILRDLNGLITSDYELLSDPTPGIPNPRDELCGGAQLYACQDPAIFEERHLKYISLLGKGNFGSVELCRYDPLGDNTGPLVAVKQLQHSGPEQQRDFQREIQILKALHCDFIVKYRGVSYGPGRQELRLVMEYLPSGCLRDFLQRHRARLHNDRLLLFAWQICKGMEYLGARRCVHRDLAARNILVESEAHVKIADFGLAKLLPLGKDYYVVRVPGQSPIFWYAPESLSDNIFSRQSDVWSFGVVLYELFTYSDKSCSPSTEFLRMIGPEREGSPLCHLLELLAEGRRLPPPSTCPTEVQELMQLCWSPNPQDRPAFDTLSPQLDALWRGSPG