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  • Your Good Partner in Biology Research

    JAK2 Antibody

    • 货号:
    • 规格:
    • 图片:
      • Immunofluorescence staining of Hela Cells with CSB-RA267127A0HU at 1:50, counter-stained with DAPI. The cells were fixed in 4% formaldehyde, permeated by 0.2% TritonX-100, and blocked in 10% normal Goat Serum. The cells were then incubated with the antibody overnight at 4°C. Nuclear DNA was labeled in blue with DAPI. The secondary antibody was FITC-conjugated AffiniPure Goat Anti-Rabbit IgG (H+L).
    • 其他:


    • Uniprot No.:
    • 基因名:
    • 别名:
      Tyrosine-protein kinase JAK2 (EC (Janus kinase 2) (JAK-2), JAK2
    • 反应种属:
    • 免疫原:
      A synthesized peptide derived from human JAK2
    • 免疫原种属:
      Homo sapiens (Human)
    • 标记方式:
    • 克隆类型:
    • 抗体亚型:
      Rabbit IgG
    • 纯化方式:
    • 克隆号:
    • 浓度:
      It differs from different batches. Please contact us to confirm it.
    • 保存缓冲液:
      Rabbit IgG in phosphate buffered saline, pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
    • 产品提供形式:
    • 应用范围:
      ELISA, IF
    • 推荐稀释比:
      Application Recommended Dilution
      IF 1:20-1:200
    • Protocols:
    • 储存条件:
      Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
    • 货期:
      Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.



    • 功能:
      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. 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, 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). In addition, JAK2 mediates angiotensin-2-induced ARHGEF1 phosphorylation. Plays a role in cell cycle by phosphorylating CDKN1B. 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.
    • 基因功能参考文献:
      1. Clonal analysis shows that the dominant JAK2 V617F-positive clone in Polycythemia Vera harbors EGFR C329R substitution, thus this mutation may contribute to clonal expansion. PMID: 28550306
      2. Patients with CALR mutation had significantly higher concentration of PDGF-BB and lower concentration of SDF-1alpha than patients with JAK2V617F mutation. High concentration of PDGF-BB and low concentration of SDF-1alpha in patients with CALR(+) ET may indicate a contribution of these chemokines in disturbed Ca2+ metabolism in platelets. PMID: 29390868
      3. Here, we present two crystal structures of the human JAK2 FERM and SH2 domains bound to Leptin receptor (LEPR) and Erythropoietin receptor (EPOR), which identify a novel dimeric conformation for JAK2. PMID: 30044226
      4. pathogenesis mechanism of JAK2 F556V mutation in the MPNs PMID: 29842959
      5. Mir-204 attenuates angiogenesis in lung adenocarcinoma via JAK2-STAT3 pathway. PMID: 29281186
      6. FEZF1-AS1 acts as an oncogenic lncRNA in human hepatocellular carcinoma by promoting JAK2/STAT3 signaling-mediated epithelial mesenchymal transformation. PMID: 29957463
      7. Case Reports/Review: JAK2 mutation-associated cerebral arterial infarction and cerebral and systemic venous thromboembolism. PMID: 30056970
      8. HSP27 is a partner of JAK2-STAT5 and a potential therapeutic target in myelofibrosis. PMID: 29650953
      9. Our study suggests that JAK2V617F mutation may increase the risk of thrombosis in chronic myeloproliferative neoplasms. PMID: 30004057
      10. Progression to polythythemia vera from familial thrombocytosis with germline JAK2 R867Q mutation. PMID: 29368262
      11. JAK2 and STAT3 are activated in Idiopathic pulmonary fibrosis PMID: 29409529
      12. The prevalence of CALR mutation in JAK2V617F-negative essential thrombocythemia in this study is 35.7%. HRM is an effective method of detecting CALR mutation and is a more advantageous method of screening for CALR mutation. PMID: 29521158
      13. Comprehensive genomic characterization identified distinct genetic subgroups and provided a classification of myeloproliferative neoplasms on the basis of causal biologic mechanisms. Mutations in JAK2, CALR, or MPL being the sole abnormality in 45% of the patients. PMID: 30304655
      14. Findings outlined in the current study demonstrated that the inhibition of P16 decreased the growth and metastasis potential of BC cells by inhibiting IL-6/JAK2/STAT3 signaling. PMID: 29388151
      15. MPL-mutated and CALR-mutated essential thrombocythaemia share clinical and histological characteristics, with both genotypes showing higher platelet counts and a marked megakaryocytic proliferation in comparison with JAK2V617F-mutated ET. PMID: 29934356
      16. results herein provide clues to understand the mechanism JAK2 V625F mutation caused myeloproliferative neoplasms and give information for the development of JAK2 mutation specific inhibitors. PMID: 29782975
      17. Concomitant presence of JAK2V617F mutation and BCRABL translocation in two patients: A new entity or a variant of myeloproliferative neoplasms. PMID: 29845291
      18. The JAK2 V617F mutation and thrombocytopenia. PMID: 27614229
      19. PBX1 plays an oncogenic role in clear cell renal carcinoma via JAK2/STAT3 pathway PMID: 29678569
      20. Our study shows that JAK2V617F leads to abnormal expression of numerous proteins at the membrane of circulating PV red blood cells, with overexpression of CALR and persistence of CANX PMID: 28385780
      21. In 94.9% of PV, 85.5% ET and 85.2% PMF, authors found mutations in JAK2, MPL or CALR. 74.9% carried JAK2V617F, 12.3% CALR mutations, 2.1% MPL mutations and 10.7% were triple negative. PMID: 28990497
      22. tyrphostin B42 induced the apoptosis of pancreatic cancer cells (PCCs) by regulating the expression of mitochondrialrelated genes. Therefore, these findings demonstrated that tyrphostin B42 attenuated trichostatin A resistance in PCCs by antagonizing the IL6/JAK2/STAT3 signaling PMID: 29393444
      23. MiR-375 inhibits fetal ASM cell proliferation and migration by targeting JAK2/STAT3 signaling. PMID: 29245068
      24. data show that HIT is more frequent, during heparin treatment, in patients with ET carrying V617F mutation, as compared with patients without mutations PMID: 29022213
      25. Overexpression of ALK4 suppressed glioma cell proliferation, migration and invasion through the inactivation of JAK/STAT3 signaling pathway. PMID: 29278854
      26. We describe a subset of non-small-cell lung cancer patients who had JAK2 amplifications resulting in high expression of PD-L1 PMID: 28795418
      27. High JAK2 expression is associated with hepatocellular carcinoma. PMID: 28677802
      28. JAK2 haplotype 46/1 and JAK2 V617F allele burden in MPN PMID: 29134760
      29. Low JAK2 expression is associated with gastric cancer. PMID: 28656307
      30. The authors discovered tyrosine 78 of Atoh1 is phosphorylated by a Jak2-mediated pathway only in tumor-initiating cells and in human Sonic Hedgehog-type medulloblastoma. PMID: 29168692
      31. conclude that the activating JAK2 V617F mutation does not play a decisive role in the pathogenesis of progressive CKD PMID: 27889755
      32. Our findings revealed that B7-H3 affect ovarian cancer progression through the Jak2/Stat3 pathway, indicating that B7-H3 has the potential to be a useful prognostic marker. PMID: 28765941
      33. In 136 patients with myelofibrosis and a median age of 58 years who underwent allogeneic stem cell transplantation (AHSCT) for molecular residual disease, the percentage of molecular clearance on day 100 was higher in CALR-mutated patients (92%) in comparison with MPL- (75%) and JAKV617F-mutated patients (67%). PMID: 28714945
      34. Mutational subtypes of JAK2 correlate with different clinical features in Japanese patients with myeloproliferative neoplasms. PMID: 29464483
      35. identification of activating somatic mutations in JAK2 and germline mutations in JAK3 with clinical implications PMID: 29082853
      36. Screening for the JAK2 V617F mutation in cerebral venous thrombosis patients seems to be useful because of its relatively high prevalence and the risk of thrombosis recurrence. PMID: 28609766
      37. Ascochlorin significantly decreased phosphorylation of JAK2/STAT3, cancer cell migration and nuclear translocation of STAT3. PMID: 28569433
      38. TLR7, TLR9, and JAK2 genes are potential biomarkers for systemic sclerosis. High TLR7 expression positively correlated with the late form of disease. Decreased levels of TLR9 and JAK2 mRNA were found in the patient's cohort in comparison to non-SSc individuals. PMID: 29147913
      39. This study demonstrated that the JAK2V617F mutation was detectable in Patients with Stroke. PMID: 28625126
      40. Curcumin attenuated neuropathic pain and down-regulated the production of spinal mature IL-1beta by inhibiting the aggregation of NALP1 inflammasome and the activation of the JAK2-STAT3 cascade in astrocytes. PMID: 27381056
      41. High level of phosphorylated JAK2, and STAT3 are associated with systemic lupus erythematosus. PMID: 28177455
      42. this study shows that Nrf2 activation induces lipocyte phenotype in hepatic stellate cells via enhancing SOCS3-dependent feedback inhibition on JAK2/STAT3 cascade PMID: 28601022
      43. bladder cancer cell may inhibit maturation and function of dendritic cells involving of Jak2/STAT3 pathway, and there may be different mechanisms by which adriamycin-resistant BCC restrains DC function in antitumor immune response PMID: 27556503
      44. Multivariate analysis adjusted for age, sex, follow-up period and hematological parameters confirmed that increased activated B cells were universally present in JAK2-mutated, CALR-mutated and triple-negative ET patients when compared to healthy adults. PMID: 28415571
      45. In multivariable analysis, younger age, platelet count, hemoglobin level and JAK2 V617F mutation independently predicted the development of acquired von Willebrand syndrome (AVWS) among essential thrombocythemia (ET)patients; whereas only platelet count predicted its development among polycythemia vera (PV) patients. Among ET patients, JAK2 V617F was a main driver for the development of AVWS. PMID: 27919526
      46. CXCR4 induced VEGF production and JAK2/STAT3 activation and enhanced STAT3 binding to VEGF promoter in gastric cancer cells. PMID: 28544312
      47. these results reveal proteome alterations in MPN granulocytes depending on the phenotype and genotype of patients, highlighting new oncogenic mechanisms associated with JAK2 mutations and overexpression of calreticulin PMID: 28314843
      48. JAK2 mutation is associated with Essential thrombocythemia. PMID: 28205126
      49. Considering JAK2(V617F) -positive disease, a higher (>50%) JAK2(V617F) burden and histological classification are independent prognostic risk factors for disease progression. PMID: 28509339
      50. Taken together, we found that silibinin inhibits the Jak2/STAT3/MMP2 signaling pathway, and inhibits the proliferation, migration, and invasion of triple-negative breast cancer cells. PMID: 28440514



    • 相关疾病:
      Budd-Chiari syndrome (BDCHS); Polycythemia vera (PV); Thrombocythemia 3 (THCYT3); Myelofibrosis (MYELOF); Leukemia, acute myelogenous (AML)
    • 亚细胞定位:
      Endomembrane system; Peripheral membrane protein. Cytoplasm. Nucleus.
    • 蛋白家族:
      Protein kinase superfamily, Tyr protein kinase family, JAK subfamily
    • 组织特异性:
      Ubiquitously expressed throughout most tissues.
    • 数据库链接:

      HGNC: 6192

      OMIM: 147796

      KEGG: hsa:3717

      STRING: 9606.ENSP00000371067

      UniGene: Hs.656213

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