Signal transducer and transcription activator that mediates cellular responses to interferons(IFNs), cytokine KITLG/SCF and other cytokines and other growth factors. Following type I IFN(IFN-alpha and IFN-beta) binding to cell surface receptors, signaling via protein kinases leads to activation of Jak kinases(TYK2 and JAK1) and to tyrosine phosphorylation of STAT1 and STAT2. The phosphorylated STATs dimerize and associate with ISGF3G/IRF-9 to form a complex termed ISGF3 transcription factor, that enters the nucleus. ISGF3 binds to the IFN stimulated response element(ISRE) to activate the transcription of IFN-stimulated genes(ISG), which drive the cell in an antiviral state. In response to type II IFN(IFN-gamma), STAT1 is tyrosine-and serine-phosphorylated. It then forms a homodimer termed IFN-gamma-activated factor(GAF), migrates into the nucleus and binds to the IFN gamma activated sequence(GAS) to drive the expression of the target genes, inducing a cellular antiviral state. Becomes activated in response to KITLG/SCF and KIT signaling. May mediate cellular responses to activated FGFR1, FGFR2, FGFR3 and FGFR4.
Clonality
polyclonal
Host
Rabbit
Immunogen
signal transducer and activator of transcription 1, 91kDa
Immunogen Region
signal transducer and actIVator of transcription 1, 91kDa
Isotype
IgG
Molecular Weight
84 kDa
Reactivity
Human, Rat
Recommended Dilution
WB: 1:500-1:2000; IHC: 1:50-1:500
Synonyms
ISGF 3, STAT1, STAT91
Uniprot
P42224
Gene Id
6772
Research Area
Epigenetics, Signal Transduction, Metabolism, Cardiovascular, Immunology
Form
liquid
Purification
Immunogen affinity purified
Purity
>=95% as determined by SDS-PAGE
Storage
PBS with 0.02% sodium azide and 50% glycerol pH 7.3, -20°C for 12 months(Avoid repeated freeze / thaw cycles.)
Tested Application
WB: 1:500-1:2000; IHC: 1:50-1:500
Product Manual
<a href="https://www.fn-test.com/content/uploads/product/manuals/antibody/FNab09985.pdf" target="_blank">Data Sheet</ a>