Summary

Name JAK2
Full Name Tyrosine-protein kinase JAK2
Synonyms Janus kinase 2, JAK-2
Primary ID O60674
Links - -
Type protein
Relations 156
Pathways Acute Myeloid Leukemia, AML1-ETO in AML, BCR-ABL in AML, FLT3 in AML, Onco-fusion proteins in AML, KIT in AML, EGFR Signaling, EBV infection, Eosinophil: IL5, FAP: IL4/IL13 induction, Leptin Signaling, Macrophage polarization, Macrophage: IFN gamma, Macrophage: IL10, Macrophage: IL4, Macrophage: Polarization and myogenesis, Mast cell: SCF, Monocyte: Macrophage differentiation, Myoblast: IL6 and hypertrophy, Myofiber: IL6 and atrophy, Chemokines PDAC, Satellite: IFN gamma, Satellite: IL6, T-Lymphocyte: IL10, T-Lymphocyte: IL4 and its transcriptional regulation
Inhibitors N-tert-butyl-3-[[5-methyl-2-[4-[2-(1-pyrrolidinyl)ethoxy]anilino]-4-pyrimidinyl]amino]benzenesulfonamide; 2-[1-ethylsulfonyl-3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1-pyrazolyl]-3-azetidinyl]acetonitrile; AT9283; LY2784544; TG101209; NVP-BSK805 dihydrochloride; N-(cyanomethyl)-4-[2-[4-(4-morpholinyl)anilino]-4-pyrimidinyl]benzamide; ruxolitinib; ruxolitinib phosphate; erlotinib hydrochloride; AZ 960; AZD1480; LSM-1231; tyrphostin B42
Function Non-receptor tyrosine kinase involved in various processes such as cell growth, development, differentiation or histone modifications. Mediates essential signaling events in both innate and adaptive immunity. In the cytoplasm, plays a pivotal role in signal transduction via its association with type I receptors such as growth hormone (GHR), prolactin (PRLR), leptin (LEPR), erythropoietin (EPOR), thrombopoietin (THPO); or type II receptors including IFN-alpha, IFN-beta, IFN-gamma and multiple interleukins (PubMed:7615558). Following ligand-binding to cell surface receptors, phosphorylates specific tyrosine residues on the cytoplasmic tails of the receptor, creating docking sites for STATs proteins (PubMed:9618263). 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, cell stimulation with erythropoietin (EPO) during erythropoiesis leads to JAK2 autophosphorylation, activation, and its association with erythropoietin receptor (EPOR) that becomes phosphorylated in its cytoplasmic domain. Then, STAT5 (STAT5A or STAT5B) is recruited, phosphorylated and activated by JAK2. Once activated, dimerized STAT5 translocates into the nucleus and promotes the transcription of several essential genes involved in the modulation of erythropoiesis. Part of a signaling cascade that is activated by increased cellular retinol and that leads to the activation of STAT5 (STAT5A or STAT5B) (PubMed:21368206). In addition, JAK2 mediates angiotensin-2-induced ARHGEF1 phosphorylation (PubMed:20098430). Plays a role in cell cycle by phosphorylating CDKN1B (PubMed:21423214). Cooperates with TEC through reciprocal phosphorylation to mediate cytokine-driven activation of FOS transcription. In the nucleus, plays a key role in chromatin by specifically mediating phosphorylation of 'Tyr-41' of histone H3 (H3Y41ph), a specific tag that promotes exclusion of CBX5 (HP1 alpha) from chromatin (PubMed:19783980).

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Modifications Tables

Relations

Regulator Mechanism target score
+ down-regulates quantity by destabilization img/direct_inhibition.png ubiquitination JAK2 0.589
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, FLT3 in AML, KIT in AML
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.259
Publications: 2 Organism: In Vitro
+ down-regulates activity img/direct_inhibition.png phosphorylation JAK2 0.2
Publications: 3 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, AML1-ETO in AML, BCR-ABL in AML, FLT3 in AML, Onco-fusion proteins in AML, KIT in AML, EGFR Signaling, EBV infection, Leptin Signaling, Macrophage polarization
+ down-regulates img/direct_inhibition.png phosphorylation JAK2 0.515
Publications: 1 Organism: Chlorocebus Aethiops
+ down-regulates img/direct_inhibition.png phosphorylation JAK2 0.2
Publications: 1 Organism: Chlorocebus Aethiops
Pathways:Acute Myeloid Leukemia, BCR-ABL in AML, FLT3 in AML, KIT in AML, EGFR Signaling, Leptin Signaling
+ down-regulates img/direct_inhibition.png phosphorylation JAK2 0.525
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.2
Publications: 1 Organism: Mus Musculus
Pathways:Acute Myeloid Leukemia, BCR-ABL in AML, Onco-fusion proteins in AML
+ down-regulates activity img/direct_inhibition.png dephosphorylation JAK2 0.287
Publications: 2 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png dephosphorylation JAK2 0.376
Publications: 2 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png dephosphorylation JAK2 0.799
Publications: 3 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png dephosphorylation JAK2 0.799
Publications: 2 Organism: Homo Sapiens
+ up-regulates quantity by stabilization img/direct-activation.png dephosphorylation JAK2 0.795
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, FLT3 in AML, KIT in AML, EGFR Signaling, Leptin Signaling
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.641
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.2
Publications: 6 Organism: In Vitro, Chlorocebus Aethiops, Homo Sapiens
Pathways:Acute Myeloid Leukemia, AML1-ETO in AML, BCR-ABL in AML, FLT3 in AML, Onco-fusion proteins in AML, KIT in AML, EGFR Signaling, EBV infection, Leptin Signaling, Macrophage polarization
+ img/unknown.png phosphorylation JAK2 0.2
Publications: 1 Organism: In Vitro
Pathways:Acute Myeloid Leukemia, AML1-ETO in AML, BCR-ABL in AML, FLT3 in AML, Onco-fusion proteins in AML, KIT in AML, EGFR Signaling, EBV infection, Leptin Signaling, Macrophage polarization
+ down-regulates activity img/direct_inhibition.png dephosphorylation JAK2 0.471
Publications: 4 Organism: Mus Musculus, Homo Sapiens
Pathways:Acute Myeloid Leukemia, AML1-ETO in AML
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.409
Publications: 1 Organism: In Vitro
+ up-regulates activity img/direct-activation.png phosphorylation EGFR 0.613
Publications: 1 Organism: Chlorocebus Aethiops
Pathways:Acute Myeloid Leukemia, EGFR Signaling
+ up-regulates activity img/direct-activation.png phosphorylation KDM3A 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation LEPR 0.776
Publications: 2 Organism: Homo Sapiens
Pathways:Leptin Signaling
+ up-regulates activity img/direct-activation.png phosphorylation CCR2 0.606
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation FGF14 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation TET2 0.42
Publications: 2 Organism: In Vitro
Pathways:Acute Myeloid Leukemia
+ up-regulates quantity by stabilization img/direct-activation.png phosphorylation CTLA4 0.444
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation JAK2 0.2
Publications: 3 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, AML1-ETO in AML, BCR-ABL in AML, FLT3 in AML, Onco-fusion proteins in AML, KIT in AML, EGFR Signaling, EBV infection, Leptin Signaling, Macrophage polarization
+ up-regulates activity img/direct-activation.png phosphorylation GTF2I 0.326
Publications: 1 Organism: Mus Musculus
+ up-regulates activity img/direct-activation.png phosphorylation STAP2 0.341
Publications: 2
+ down-regulates img/direct_inhibition.png phosphorylation PRMT5 0.694
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation PTPN11 0.795
Publications: 2 Organism: Chlorocebus Aethiops
Pathways:Acute Myeloid Leukemia, FLT3 in AML, KIT in AML, EGFR Signaling, Leptin Signaling
+ down-regulates img/direct_inhibition.png phosphorylation JAK2 0.2
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, AML1-ETO in AML, BCR-ABL in AML, FLT3 in AML, Onco-fusion proteins in AML, KIT in AML, EGFR Signaling, EBV infection, Leptin Signaling, Macrophage polarization
+ up-regulates quantity img/direct-activation.png phosphorylation BECN1 0.298
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation BECN1 0.298
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation RAF1 0.618
Publications: 2 Organism: Mus Musculus
+ up-regulates activity img/direct-activation.png phosphorylation EPOR 0.814
Publications: 8
+ up-regulates activity img/direct-activation.png dephosphorylation JAK2 0.795
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, FLT3 in AML, KIT in AML, EGFR Signaling, Leptin Signaling
+ down-regulates img/direct_inhibition.png phosphorylation EZH2 0.534
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia
+ up-regulates img/direct-activation.png phosphorylation GAB2 0.518
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation STAT4 0.68
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation STAT5A 0.868
Publications: 1 Organism: Saccharomyces Cerevisiae
Pathways:Acute Myeloid Leukemia, AML1-ETO in AML, BCR-ABL in AML, FLT3 in AML, Onco-fusion proteins in AML, KIT in AML, Leptin Signaling
+ up-regulates img/direct-activation.png phosphorylation STAT1 0.809
Publications: 3 Organism: Homo Sapiens,
Tissue: Skeletal Muscle
Pathways:EGFR Signaling, EBV infection
+ up-regulates activity img/direct-activation.png phosphorylation STAT3 0.82
Publications: 2 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, KIT in AML, EGFR Signaling, EBV infection, Leptin Signaling, Macrophage polarization
+ down-regulates img/direct_inhibition.png phosphorylation MAP3K5 0.365
Publications: 1 Organism: Homo Sapiens
+ down-regulates quantity by destabilization img/direct_inhibition.png phosphorylation MAP3K5 0.365
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation ARHGEF1 0.326
Publications: 1 Organism: Homo Sapiens
+ up-regulates quantity img/direct-activation.png phosphorylation ATOH1 0.34
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png dephosphorylation JAK2 0.323
Publications: 2 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia
+ down-regulates activity img/direct_inhibition.png phosphorylation CDKN1B 0.697
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia
+ down-regulates activity img/direct_inhibition.png phosphorylation PDP1 0.263
Publications: 1 Organism: Mus Musculus
+ up-regulates quantity by stabilization img/direct-activation.png phosphorylation BRD4 0.324
Publications: 2 Organism: Homo Sapiens
+ down-regulates quantity by destabilization img/direct_inhibition.png post transcriptional regulation JAK2 0.4
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: In Vitro
+ down-regulates activity img/direct_inhibition.png relocalization SLC6A8 0.2
Publications: 2 Organism: Xenopus Laevis Laevis
+ down-regulates activity img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png phosphorylation JAK2 0.2
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.434
Publications: 1 Organism: Homo Sapiens
Pathways:Macrophage polarization
+ up-regulates img/direct-activation.png binding JAK2 0.716
Publications: 2 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation ERBB2 0.624
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation GHR 0.768
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding JAK2 0.716
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png binding JAK2 0.798
Publications: 1 Organism: Homo Sapiens
Pathways:Leptin Signaling
+ up-regulates activity img/direct-activation.png binding JAK2 0.614
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, Onco-fusion proteins in AML, KIT in AML
+ up-regulates activity img/direct-activation.png phosphorylation ITGAL 0.268
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.282
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation CSF2RA 0.536
Publications: 1 Organism: Homo Sapiens
+ up-regulates quantity by stabilization img/direct-activation.png binding MYC 0.452
Publications: 1 Organism: Mus Musculus
Pathways:Acute Myeloid Leukemia, AML1-ETO in AML, BCR-ABL in AML, FLT3 in AML, KIT in AML, EGFR Signaling
+ down-regulates quantity img/direct_inhibition.png phosphorylation ESR1 0.436
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation STAT5A 0.868
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, AML1-ETO in AML, BCR-ABL in AML, FLT3 in AML, Onco-fusion proteins in AML, KIT in AML, Leptin Signaling
+ up-regulates activity img/direct-activation.png phosphorylation ITGB2 0.265
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding JAK2 0.536
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding JAK2 0.709
Publications: 1 Organism: Homo Sapiens
Pathways:EBV infection, Macrophage polarization
+ down-regulates activity img/direct_inhibition.png binding JAK2 0.35
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png binding JAK2 0.242
Publications: 1 Organism: Homo Sapiens
+ up-regulates quantity by expression img/indirect-activation.png transcriptional regulation MYC 0.452
Publications: 1 Organism: Mus Musculus
Pathways:Acute Myeloid Leukemia, AML1-ETO in AML, BCR-ABL in AML, FLT3 in AML, KIT in AML, EGFR Signaling
+ up-regulates activity img/direct-activation.png phosphorylation IFNGR2/INFGR1 0.709
Publications: 1 Organism: Homo Sapiens
Pathways:EBV infection, Macrophage polarization
+ down-regulates img/direct_inhibition.png dephosphorylation JAK2 0.376
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation STAT1/STAT3 0.814
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation STAT6 0.674
Publications: 2 Organism: Homo Sapiens
Pathways:Macrophage polarization
+ up-regulates img/direct-activation.png binding JAK2 0.382
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png dephosphorylation JAK2 0.731
Publications: 1 Organism: Chlorocebus Aethiops
Pathways:Acute Myeloid Leukemia, FLT3 in AML
+ up-regulates activity img/direct-activation.png phosphorylation CSF2RA/CSF2RB 0.587
Publications: 2 Organism: Homo Sapiens
Tissue: Skeletal Muscle
Pathways:Acute Myeloid Leukemia, BCR-ABL in AML
+ up-regulates img/direct-activation.png binding JAK2 0.703
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png binding JAK2 0.647
Publications: 1 Organism: Mus Musculus
Pathways:Acute Myeloid Leukemia, KIT in AML
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.625
Publications: 1 Organism: Homo Sapiens
Pathways:Macrophage polarization
+ up-regulates activity img/direct-activation.png APOA1 0.298
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding JAK2 0.776
Publications: 1 Organism: Homo Sapiens
Pathways:Leptin Signaling
+ up-regulates activity img/indirect-activation.png JAK2 0.298
Publications: 1 Organism: Homo Sapiens
+ down-regulates quantity by destabilization img/direct_inhibition.png ubiquitination JAK2 0.796
Publications: 1 Organism: Homo Sapiens
Pathways:Macrophage polarization
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.603
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.573
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/indirect-activation.png JAK2 0.536
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png binding JAK2 0.616
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding JAK2 0.702
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png , chemical inhibition JAK2 0.8
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding IFNGR2 0.702
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation STAT5B 0.867
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/indirect-activation.png JAK2 0.613
Publications: 1 Organism: Mus Musculus
Pathways:Acute Myeloid Leukemia, EGFR Signaling
+ down-regulates img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation BTK 0.45
Publications: 1 Organism: Homo Sapiens
+ up-regulates quantity by expression img/direct-activation.png transcriptional regulation JAK2 0.2
Publications: 1 Organism: Mus Musculus
+ up-regulates img/direct-activation.png phosphorylation STAM 0.618
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: In Vitro
+ down-regulates quantity by repression img/indirect_inhibition.png transcriptional regulation JAK2 0.2
Publications: 1 Organism: Mus Musculus
Pathways:Acute Myeloid Leukemia, AML1-ETO in AML, Onco-fusion proteins in AML
+ down-regulates img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation IFNGR1 0.716
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding JAK2 0.693
Publications: 1
Pathways:Leptin Signaling
+ down-regulates activity img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: In Vitro