Summary

Name JAK2
Full Name Tyrosine-protein kinase JAK2
Synonyms Janus kinase 2, JAK-2
Primary ID O60674
Links - -
Type protein
Relations 157
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, Ulcerative_Colitis_Lymphocyte
Inhibitors 2-[1-ethylsulfonyl-3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1-pyrazolyl]-3-azetidinyl]acetonitrile; NVP-BSK805 dihydrochloride; N-tert-butyl-3-[[5-methyl-2-[4-[2-(1-pyrrolidinyl)ethoxy]anilino]-4-pyrimidinyl]amino]benzenesulfonamide; ruxolitinib phosphate; tyrphostin B42; ruxolitinib; AZ 960; LSM-1231; AT9283; AZD1480; erlotinib hydrochloride; N-(cyanomethyl)-4-[2-[4-(4-morpholinyl)anilino]-4-pyrimidinyl]benzamide; LY2784544; TG101209
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 ℹ
+ down-regulates quantity by destabilization img/direct_inhibition.png ubiquitination JAK2 0.605
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, FLT3 in AML, KIT in AML
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.257
Publications: 2 Organism: In Vitro
+ 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 0.543
Publications: 1 Organism: Homo Sapiens
+ 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 0.533
Publications: 1 Organism: Chlorocebus Aethiops
+ down-regulates activity img/direct_inhibition.png dephosphorylation JAK2 0.461
Publications: 4 Organism: Mus Musculus, Homo Sapiens
Pathways:Acute Myeloid Leukemia, AML1-ETO in AML
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.654
Publications: 2 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png dephosphorylation JAK2 0.807
Publications: 3 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 0.807
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.401
Publications: 1 Organism: In Vitro
+ up-regulates quantity by stabilization img/direct-activation.png dephosphorylation JAK2 0.804
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, FLT3 in AML, KIT in AML, EGFR Signaling, Leptin Signaling
+ unknown 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 0.283
Publications: 2 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png dephosphorylation JAK2 0.368
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
+ up-regulates activity img/direct-activation.png phosphorylation EGFR 0.623
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 0.785
Publications: 2 Organism: Homo Sapiens
Pathways:Leptin Signaling
+ up-regulates activity img/direct-activation.png phosphorylation CCR2 0.611
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 0.414
Publications: 2 Organism: In Vitro
Pathways:Acute Myeloid Leukemia
+ up-regulates quantity by stabilization img/direct-activation.png phosphorylation CTLA4 0.435
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 0.321
Publications: 1 Organism: Mus Musculus
+ up-regulates activity img/direct-activation.png phosphorylation STAP2 0.335
Publications: 2
+ down-regulates img/direct_inhibition.png phosphorylation PRMT5 0.707
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation PTPN11 0.804
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 activity img/direct-activation.png phosphorylation BECN1 0.295
Publications: 1 Organism: Homo Sapiens
+ up-regulates quantity img/direct-activation.png phosphorylation BECN1 0.295
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation RAF1 0.631
Publications: 2 Organism: Mus Musculus
+ up-regulates activity img/direct-activation.png phosphorylation EPOR 0.822
Publications: 8
+ up-regulates activity img/direct-activation.png dephosphorylation JAK2 0.804
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 0.523
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia
+ up-regulates img/direct-activation.png phosphorylation GAB2 0.537
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation STAT4 0.694
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation STAT5A 0.874
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 0.817
Publications: 3 Organism: Homo Sapiens,
Tissue: Skeletal Muscle
Pathways:EGFR Signaling, EBV infection
+ up-regulates activity img/direct-activation.png phosphorylation STAT3 0.828
Publications: 2 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, KIT in AML, EGFR Signaling, EBV infection, Leptin Signaling, Macrophage polarization
+ down-regulates quantity by destabilization img/direct_inhibition.png phosphorylation MAP3K5 0.358
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png phosphorylation MAP3K5 0.358
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation ARHGEF1 0.322
Publications: 1 Organism: Homo Sapiens
+ up-regulates quantity img/direct-activation.png phosphorylation ATOH1 0.336
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png dephosphorylation JAK2 0.318
Publications: 2 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia
+ down-regulates activity img/direct_inhibition.png phosphorylation CDKN1B 0.709
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia
+ down-regulates activity img/direct_inhibition.png phosphorylation PDP1 0.261
Publications: 1 Organism: Mus Musculus
+ up-regulates quantity by stabilization img/direct-activation.png phosphorylation BRD4 0.32
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding JAK2 0.727
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation IFNGR2/INFGR1 0.72
Publications: 1 Organism: Homo Sapiens
Pathways:EBV infection, Macrophage polarization
+ up-regulates activity img/direct-activation.png phosphorylation CSF2RA/CSF2RB 0.603
Publications: 2 Organism: Homo Sapiens
Tissue: Skeletal Muscle
Pathways:Acute Myeloid Leukemia, BCR-ABL in AML
+ up-regulates img/direct-activation.png binding JAK2 0.377
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png binding JAK2 0.663
Publications: 1 Organism: Mus Musculus
Pathways:Acute Myeloid Leukemia, KIT in AML
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.639
Publications: 1 Organism: Homo Sapiens
Pathways:Macrophage polarization
+ up-regulates activity img/direct-activation.png binding JAK2 0.568
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity 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 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
+ up-regulates activity img/direct-activation.png phosphorylation STAT1/STAT3 0.823
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation ITGB2 0.263
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/indirect-activation.png JAK2 0.554
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 chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding JAK2 0.785
Publications: 1 Organism: Homo Sapiens
Pathways:Leptin Signaling
+ down-regulates activity img/direct_inhibition.png chemical inhibition, JAK2 0.8
Publications: 2 Organism: Homo Sapiens
+ down-regulates quantity by destabilization img/direct_inhibition.png ubiquitination JAK2 0.805
Publications: 1 Organism: Homo Sapiens
Pathways:Macrophage polarization
+ up-regulates activity img/direct-activation.png phosphorylation STAT6 0.688
Publications: 2 Organism: Homo Sapiens
Pathways:Macrophage polarization
+ up-regulates activity img/direct-activation.png phosphorylation ERBB2 0.637
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 binding JAK2 0.345
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation STAT5A 0.874
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 img/direct-activation.png binding JAK2 0.727
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.446
Publications: 1 Organism: Homo Sapiens
Pathways:Macrophage polarization
+ up-regulates activity img/direct-activation.png binding JAK2 0.72
Publications: 1 Organism: Homo Sapiens
Pathways:EBV infection, Macrophage polarization
+ down-regulates img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png relocalization SLC6A8 0.2
Publications: 2 Organism: Xenopus Laevis Laevis
+ up-regulates activity img/indirect-activation.png JAK2 0.623
Publications: 1 Organism: Mus Musculus
Pathways:Acute Myeloid Leukemia, EGFR Signaling
+ up-regulates activity img/direct-activation.png phosphorylation IFNGR1 0.727
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 0.471
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: In Vitro
+ down-regulates img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ down-regulates quantity by destabilization img/direct_inhibition.png post transcriptional regulation JAK2 0.4
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding JAK2 0.628
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, Onco-fusion proteins in AML, KIT in AML
+ up-regulates quantity by expression img/indirect-activation.png transcriptional regulation MYC 0.445
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 img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png binding JAK2 0.241
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 binding JAK2 0.554
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation GHR 0.778
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.619
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 CSF2RA 0.554
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png dephosphorylation JAK2 0.742
Publications: 1 Organism: Chlorocebus Aethiops
Pathways:Acute Myeloid Leukemia, FLT3 in AML
+ up-regulates img/direct-activation.png phosphorylation STAM 0.628
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 activity img/direct-activation.png phosphorylation JAK2 0.591
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation STAT5B 0.872
Publications: 1 Organism: Homo Sapiens
+ down-regulates quantity img/direct_inhibition.png phosphorylation ESR1 0.429
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 img/direct-activation.png binding JAK2 0.715
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png binding JAK2 0.629
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding IFNGR2 0.713
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png dephosphorylation JAK2 0.368
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png APOA1 0.294
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation ITGAL 0.266
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 binding JAK2 0.704
Publications: 1
Pathways:Leptin Signaling
+ up-regulates activity img/direct-activation.png phosphorylation JAK2 0.28
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/indirect-activation.png JAK2 0.294
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png binding JAK2 0.807
Publications: 1 Organism: Homo Sapiens
Pathways:Leptin Signaling
+ up-regulates activity img/direct-activation.png binding JAK2 0.713
Publications: 1 Organism: Homo Sapiens
+ up-regulates quantity by stabilization img/direct-activation.png binding MYC 0.445
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 img/direct_inhibition.png chemical inhibition JAK2 0.8
Publications: 1 Organism: Homo Sapiens