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Cat. Number
068913232932164
Chemical Name
STAT3 (Phospho-Tyr705) Polyclonal Antibody
References
Synonyms
  • Signal Transducers and Activators of Transcriptions
Formulation 20 µg of antigen affinity-purified IgG in 100 µl PBS containing 0.05% BSA and 0.05% sodium azide
Stability 6 months
Storage -20°C
Shipping Wet ice in continental US; may vary elsewhere
Specificity
Chimpanzee STAT3 (+)
Canine STAT3 (+)
Human STAT3 (+)
Murine STAT3 (+)
Rhesus Monkey STAT3 (+)
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Size Global Purchasing
1 ea  

Description

Antigen: portion of human STAT3 protein containing a phosphorylated tyrosine residue at position 705 · Host: rabbit · Application(s): WB · The Signal Transducers and Activators of Transcription (STAT) family is a group of cytoplasmic latent transcription factors that are activated to regulate gene expression in response to a large number of extracellular signaling polypeptides including cytokines, interferons, and growth factors.1,2 After phosphorylation by JAK tyrosine kinases, STATs enter the nucleus to regulate transcription of many different genes. Among the seven STATs (STAT1, STAT2, STAT3, STAT4, STAT5α, STAT5β, and STAT6), STAT1, STAT3, STAT5α, and STAT5β have a wide activation profile.1,2 STAT1 and STAT3 can be activated simultaneously by the interactions of cells with the same polypeptide ligand. STAT3 is a transcription factor that binds to the interleukin-6 (IL-6)-responsive elements identified in the promoters of various acute-phase protein genes. It is activated by IL-31 through IL-31RA. STAT3 is known to be expressed in heart, brain, placenta, lung, liver, skeletal muscle, kidney, and pancreas. Defects in STAT3 are the cause of hyperimmunoglobulin E recurrent infection syndrome autosomal dominant (AD-HIES), also known as hyper-IgE syndrome or Job syndrome. Full-length STAT3 is composed of 770 amino acids with an expected migration of 89 kDa.

1 Bates, S.H., Stearns, W.H., Dundon, T.A., et al. STAT3 signalling is required for leptin regulation of energy balance but not reproduction. Nature 421(6925) 856-9 (2003).

2 Bhattacharya, S., and Schindler, C. Regulation of Stat3 nuclear export. J Clin Invest 111(4) 553-9 (2003).

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