产品详情
产品名称JAK3 (Ab-785) Antibody
来源种属Rabbit
克隆性Polyclonal
纯化The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
应用WB IHC
种属反应性Hu
特异性The antibody detects endogenous levels of total JAK3 protein.
免疫原类型Peptide
免疫原描述Synthesized non-phosphopeptide derived from human JAK3 around the phosphorylation site of tyrosine 785 (S-D-Y(p)-E-L).
基因/蛋白名称JAK3
别名EC 2.7.10.2; JAK-3; JAK3; Janus kinase 3; L-JAK
数据库入口号Swiss-Prot: P52333
NCBI Gene ID: 3718
UniprotP52333
实际分子量125kd
浓度1.0mg/ml
配方Rabbit IgG in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
保存Store at -20˚C
应用详情
Western blotting: 1:500~1:3000
Immunohistochemistry: 1:50~1:100
背景
Non-receptor tyrosine kinase involved in various processes such as cell growth, development, or differentiation. Mediates essential signaling events in both innate and adaptive immunity and plays a crucial role in hematopoiesis during T-cells development. In the cytoplasm, plays a pivotal role in signal transduction via its association with type I receptors sharing the common subunit gamma such as IL2R, IL4R, IL7R, IL9R, IL15R and IL21R. 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, upon IL2R activation by IL2, JAK1 and JAK3 molecules bind to IL2R beta (IL2RB) and gamma chain (IL2RG) subunits inducing the tyrosine phosphorylation of both receptor subunits on their cytoplasmic domain. Then, STAT5A AND STAT5B are recruited, phosphorylated and activated by JAK1 and JAK3. Once activated, dimerized STAT5 translocates to the nucleus and promotes the transcription of specific target genes in a cytokine-specific fashion.
Kawamura M., Proc. Natl. Acad. Sci. U.S.A. 91:6374-6378(1994).
Lai K.S., J. Biol. Chem. 270:25028-25036(1995).
Grimwood J., Nature 428:529-535(2004).
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