CANDF7 antibody, ISGF-3 antibody, STAT91 antibody, 2010005J02Rik antibody, AA408197 antibody, XStat1 antibody, STAT4 antibody, DD6G4-4 antibody, STAT antibody, STAT1 antibody, dZ182H3.3 antibody, si:by134g18.2 antibody, si:by51f19.1 antibody, si:dz182h3.3 antibody, si:dz199m19.1 antibody, si:dz73o4.2 antibody, stat1 antibody, signal transducer and activator of transcription 1 antibody, signal transducer and activator of transcription 1 L homeolog antibody, signal transducer and activator of transcription 1, 91kDa antibody, signal transducer and activator of transcription 4 antibody, signal transducer and activator of transcription 1a antibody, STAT1 antibody, Stat1 antibody, stat1.L antibody, stat4 antibody, stat1a antibody
Background
STAT1, also known as signal transduction and activator of transcription 1, is a ubiquitously expressed cytoplasmic protein and is activated in response to cytokine signaling, including IFN-α, IFN-γ, EGF, PDGF, and IL-6. Upon activation, STAT1 is phosphorylated by receptor-associated kinases, translocates to the nucleus, and functions as a transcription factor. Two isoforms of STAT1, with apparent molecular weights of 88 and 91 kD, exist as a result of alternative RNA processing. STAT1 is involved in IFN-mediated immune responses, and STAT1-deficient mice are highly sensitive to bacterial and viral infections.