JAK2 (Ab-570) Antibody | CSB-PA281490

JAK2 (Ab-570) Antibody | CSB-PA281490 | Cusabio

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Product Type: Polyclonal Antibody

Target Names: JAK2

Aliases: EC 2.7.10.2; JAK-2; JAK2; Janus kinase 2; kinase Jak2

Background: 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. 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.

Saltzman A., Biochem. Biophys. Res. Commun. 246:627-633 (1998) .
Dalal I., Blood 91:844-851 (1998) .
Peeters P., Blood 90:2535-2540 (1997)

Isotype: IgG

Conjugate: Non-conjugated

Clonality: Polyclonal

Uniport ID: O60674

Host Species: Rabbit

Species Reactivity: Human, Mouse, Rat

Immunogen: Synthesized non-phosphopeptide derived from human JAK2 around the phosphorylation site of tyrosine 570 (G-D-Y (p) -G-Q) .

Immunogen Species: Human

Applications: ELISA, WB, IF

Tested Applications: ELISA, WB, IF;WB:1:500-1:3000, IF:1:100-1:500

Purification Method: The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.

Dilution Ratio1: ELISA:1:2000-1:10000

Dilution Ratio2: WB:1:500-1:3000

Dilution Ratio3: IF:1:100-1:500

Dilution Ratio4:

Dilution Ratio5:

Dilution Ratio6:

Buffer: Rabbit IgG in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.

Form: liquid

Storage: Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.

Initial Research Areas: Cell Biology

Research Areas: Epigenetics & Nuclear Signaling;Cancer;Cell biology;Signal transduction