Immunology Recombinant Proteins

Human STAT1 Recombinant Protein (RPES1911)

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SKU:
RPES1911
Product Type:
Recombinant Protein
Species:
Human
Research Area:
Immunology

Description

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Human STAT1 Recombinant Protein

STAT1 is a member of the STAT protein family. In response to cytokines and growth factors; STAT family members are phosphorylated by the receptor associated kinases; and then form homo- or heterodimers that translocate to the cell nucleus where they act as transcription activators. STAT1 can be activated by various ligands; including interferon-alpha; interferon-gamma; EGF; PDGF and IL6. It is a signal transducer and transcription activator that mediates cellular responses to interferons (IFNs); cytokine KITLG/SCF and other cytokines and growth factors. The phosphorylated STATs dimerize; 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 interferon stimulated genes; 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. STAT1 becomes activated in response to KITLG/SCF and KIT signaling and may mediate cellular responses to activated FGFR1; FGFR2; FGFR3 and FGFR4. Defects in STAT1 can cause STAT1 deficiency complete and familial candidiasis type 7.

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