Product Pathways - Jak/Stat Pathway
Phospho-Stat2 (Tyr690) Antibody #4441
|4441S||100 µl (10 western blots)||---||In Stock||---|
|4441P||40 µl (4 western blots)||---||In Stock||---|
|4441||carrier free and custom formulation / quantity||email request|
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Species cross-reactivity is determined by western blot.
Applications Key: W=Western Blotting
Species predicted to react based on 100% sequence homology: Rat, Bovine.
Specificity / Sensitivity
Phospho-Stat2 Antibody detects endogenous levels of human Stat2 only when phosphorylated at Tyr690. The antibody does not significantly cross-react with corresponding phospho-tyrosine sites on other Stat proteins.
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Tyr690 of human Stat2 protein. Antibodies are purified by protein A and peptide affinity chromatography.
Stat2 (113-kDa), originally purified from the nuclei of alpha-interferon-treated cells, is critical to the transcriptional responses induced by type I interferons, IFN-alpha/beta (1,2). Knockout mice with a targeted disruption of Stat2 have higher susceptibility to viral infection and altered responses to type I interferons (3). Stat2 is rapidly activated by phosphorylation at Tyr690 in response to stimulation by IFN-alpha/beta via associations with receptor-bound Jak kinases (4). Unlike other Stat proteins, Stat2 does not form homodimers. Instead, activated Stat2 forms a heterodimer with Stat1 and translocates to the nucleus. There, it associates with the DNA-binding protein p48 and forms the transcriptional activator complex, interferon-stimulated gene factor 3 (ISGF3), promoting transcription from the ISRE (5).
- Lee, J. et al. (2011) Oncogene , . Applications: Western Blotting.
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For Research Use Only. Not For Use In Diagnostic Procedures.
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