Summary

Name JAK3
Full Name Tyrosine-protein kinase JAK3
Synonyms Janus kinase 3, JAK-3, Leukocyte janus kinase, L-JAK
Primary ID P52333
Links - -
Type protein
Relations 36
Pathways FAP: IL15, iCAF signaling in PDAC
Inhibitors tofacitinib citrate; ruxolitinib; 9-(1-Methyl-4-pyrazolyl)-1-[1-(1-oxoprop-2-enyl)-2,3-dihydroindol-6-yl]-2-benzo[h][1,6]naphthyridinone; TG101209; AT9283; tofacitinib
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.

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Modifications Tables

Relations

Regulator Mechanism target score
+ up-regulates activity img/direct-activation.png phosphorylation JAK1 0.515
Publications: 2 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation NFATC1 0.391
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation PLD2 0.418
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation SIGLEC10 0.2
Publications: 2 Organism: Homo Sapiens
+ img/unknown.png phosphorylation SIGLEC10 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation STAT5A 0.85
Publications: 2 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation JAK3 0.2
Publications: 4 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png phosphorylation JAK3 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png binding JAK3 0.736
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/indirect-activation.png JAK3 0.662
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png chemical inhibition JAK3 0.8
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/indirect-activation.png JAK3 0.515
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png chemical inhibition JAK3 0.8
Publications: 1 Organism: In Vitro
+ up-regulates img/direct-activation.png binding JAK3 0.54
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png chemical inhibition JAK3 0.8
Publications: 1 Organism: In Vitro
+ down-regulates img/direct_inhibition.png chemical inhibition JAK3 0.8
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png dephosphorylation JAK3 0.468
Publications: 1 Organism: Mus Musculus
+ down-regulates activity img/direct_inhibition.png binding JAK3 0.687
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation JAK3 0.515
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png dephosphorylation JAK3 0.468
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png chemical inhibition JAK3 0.8
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation STAT3 0.785
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png , phosphorylation JAK3 0.481
Publications: 2 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png binding JAK3 0.697
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png chemical inhibition JAK3 0.8
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png chemical inhibition JAK3 0.8
Publications: 1 Organism: In Vitro
+ down-regulates activity img/direct_inhibition.png dephosphorylation JAK3 0.684
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png dephosphorylation JAK3 0.675
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation JAK1 0.515
Publications: 1 Organism: Homo Sapiens