• Product nameAnti-JAK2 antibody
    See all JAK2 primary antibodies
  • Description
    Rabbit polyclonal to JAK2
  • Specificityab68273 does not cross react with JAK1 or JAK3.
  • Tested applicationsSuitable for: ELISA, WB, IPmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    A synthetic peptide derived from adjacent to the C-terminus of JAK2 protein. This sequence is identical in JAK2 from human, rat and mouse origins.

  • Positive control
    • JAK2 transfected HEK293 cell lysate.



Our Abpromise guarantee covers the use of ab68273 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
ELISA Use a concentration of 0.01 - 1 µg/ml.
WB Use a concentration of 0.1 - 1 µg/ml. Detects a band of approximately 120 kDa (predicted molecular weight: 130 kDa).
IP Use a concentration of 2 - 5 µg/ml.


  • FunctionNon-receptor tyrosine kinase involved in various processes such as cell cycle progression, apoptosis, mitotic recombination, genetic instability and histone modifications. In the cytoplasm, plays a pivotal role in signal transduction via its association with cytokine receptors, which constitutes an initiating step in signaling for many members of the cytokine receptor superfamily including the receptors for growth hormone (GHR), prolactin (PRLR), leptin (LEPR), erythropoietin (EPOR), granulocyte-macrophage colony-stimulating factor (CSF2), thrombopoietin (THPO) and multiple interleukins. Following stimulation with erythropoietin (EPO) during erythropoiesis, it is autophosphorylated and activated, leading to its association with erythropoietin receptor (EPOR) and tyrosine phosphorylation of residues in the EPOR cytoplasmic domain. Also involved in promoting the localization of EPOR to the plasma membrane. Also acts downstream of some G-protein coupled receptors. Plays a role in the control of body weight (By similarity). Mediates angiotensin-2-induced ARHGEF1 phosphorylation. 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.
  • Tissue specificityExpressed in blood, bone marrow and lymph node.
  • Involvement in diseaseNote=Chromosomal aberrations involving JAK2 are found in both chronic and acute forms of eosinophilic, lymphoblastic and myeloid leukemia. Translocation t(8;9)(p22;p24) with PCM1 links the protein kinase domain of JAK2 to the major portion of PCM1. Translocation t(9;12)(p24;p13) with ETV6.
    Defects in JAK2 are a cause of susceptibility to Budd-Chiari syndrome (BCS) [MIM:600880]. It is a syndrome caused by obstruction of hepatic venous outflow involving either the hepatic veins or the terminal segment of the inferior vena cava. Obstructions are generally caused by thrombosis and lead to hepatic congestion and ischemic necrosis. Clinical manifestations observed in the majority of patients include hepatomegaly, right upper quadrant pain and abdominal ascites. Budd-Chiari syndrome is associated with a combination of disease states including primary myeloproliferative syndromes and thrombophilia due to factor V Leiden, protein C deficiency and antithrombin III deficiency. Budd-Chiari syndrome is a rare but typical complication in patients with polycythemia vera.
    Defects in JAK2 are a cause of polycythemia vera (PV) [MIM:263300]. A myeloproliferative disorder characterized by abnormal proliferation of all hematopoietic bone marrow elements, erythroid hyperplasia, an absolute increase in total blood volume, but also by myeloid leukocytosis, thrombocytosis and splenomegaly.
    Defects in JAK2 gene may be a cause of essential thrombocythemia (ET) [MIM:187950]. ET is characterized by elevated platelet levels due to sustained proliferation of megakaryocytes, and frequently lead to thrombotic and haemorrhagic complications.
    Defects in JAK2 are a cause of myelofibrosis (MYELOF) [MIM:254450]. Myelofibrosis is a disorder characterized by replacement of the bone marrow by fibrous tissue, occurring in association with a myeloproliferative disorder. Clinical manifestations may include anemia, pallor, splenomegaly, hypermetabolic state, petechiae, ecchymosis, bleeding, lymphadenopathy, hepatomegaly, portal hypertension.
    Defects in JAK2 are a cause of acute myelogenous leukemia (AML) [MIM:601626]. AML is a malignant disease in which hematopoietic precursors are arrested in an early stage of development.
  • Sequence similaritiesBelongs to the protein kinase superfamily. Tyr protein kinase family. JAK subfamily.
    Contains 1 FERM domain.
    Contains 1 protein kinase domain.
    Contains 1 SH2 domain.
  • DomainPossesses 2 protein kinase domains. The second one probably contains the catalytic domain, while the presence of slight differences suggest a different role for protein kinase 1.
  • Post-translational
    Autophosphorylated, leading to regulate its activity. Leptin promotes phosphorylation on tyrosine residues, including phosphorylation on Tyr-813. Autophosphorylation on Tyr-119 in response to EPO down-regulates its kinase activity. Autophosphorylation on Tyr-868, Tyr-966 and Tyr-972 in response to growth hormone (GH) are required for maximal kinase activity.
  • Cellular localizationEndomembrane system. Nucleus.
  • Information by UniProt
  • Database links
  • Alternative names
    • JAK 2 antibody
    • JAK-2 antibody
    • JAK2 antibody
    • JAK2_HUMAN antibody
    • Janus Activating Kinase 2 antibody
    • Janus kinase 2 (a protein tyrosine kinase) antibody
    • Janus kinase 2 antibody
    • JTK 10 antibody
    • JTK10 antibody
    • kinase Jak2 antibody
    • OTTHUMP00000043260 antibody
    • THCYT3 antibody
    • Tyrosine protein kinase JAK2 antibody
    • Tyrosine-protein kinase JAK2 antibody
    see all

Anti-JAK2 antibody images

  • The cell lysate (5 mg) derived from HEK293 transfected by JAK2 was immunoprecipitated by 5ug of ab68273, and JAK2 was detected using ab68273 at 1/500 dilution.

References for Anti-JAK2 antibody (ab68273)

ab68273 has not yet been referenced specifically in any publications.

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