|Other Names||Signal transducer and activator of transcription 3, Acute-phase response factor, STAT3, APRF|
|Format||Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 1 mg/ml.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C.|
|Precautions||This product is for research use only. Not for use in diagnostic or therapeutic procedures.|
|Function||Signal transducer and transcription activator that mediates cellular responses to interleukins, KITLG/SCF and other growth factors. May mediate cellular responses to activated FGFR1, FGFR2, FGFR3 and FGFR4. Binds to the interleukin-6 (IL-6)- responsive elements identified in the promoters of various acute- phase protein genes. Activated by IL31 through IL31RA. Cytoplasmic STAT3 represses macroautophagy by inhibiting EIF2AK2/PKR activity. Plays an important role in host defense in methicillin-resistant S.aureus lung infection by regulating the expression of the antimicrobial lectin REG3G (By similarity).|
|Cellular Location||Cytoplasm. Nucleus. Note=Shuttles between the nucleus and the cytoplasm. Translocated into the nucleus upon tyrosine phosphorylation and dimerization, in response to signaling by activated FGFR1, FGFR2, FGFR3 or FGFR4. Constitutive nuclear presence is independent of tyrosine phosphorylation Predominantly present in the cytoplasm without stimuli. Upon leukemia inhibitory factor (LIF) stimulation, accumulates in the nucleus. The complex composed of BART and ARL2 plays an important role in the nuclear translocation and retention of STAT3 Identified in a complex with LYN and PAG1|
|Tissue Location||Heart, brain, placenta, lung, liver, skeletal muscle, kidney and pancreas|
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Provided below are standard protocols that you may find useful for product applications.
The protein encoded by this gene is a member of the STATprotein family. In response to cytokines and growth factors, STATfamily members are phosphorylated by the receptor associatedkinases, and then form homo- or heterodimers that translocate tothe cell nucleus where they act as transcription activators. Thisprotein is activated through phosphorylation in response to variouscytokines and growth factors including IFNs, EGF, IL5, IL6, HGF,LIF and BMP2. This protein mediates the expression of a variety ofgenes in response to cell stimuli, and thus plays a key role inmany cellular processes such as cell growth and apoptosis. Thesmall GTPase Rac1 has been shown to bind and regulate the activityof this protein. PIAS3 protein is a specific inhibitor of thisprotein. Three alternatively spliced transcript variants encodingdistinct isoforms have been described.
Li, L., et al. Cancer Res. 70(20):8222-8232(2010)Takaishi, K., et al. Cancer Sci. 101(10):2128-2136(2010)Li, F., et al. Surgeon 8(5):262-266(2010)Schimke, L.F., et al. J. Allergy Clin. Immunol. 126(3):611-617(2010)Iliopoulos, D., et al. Mol. Cell 39(4):493-506(2010)
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