STAT3, phosphorylated (Y705) (Signal Transducer and Activator of Transcription 3, Acute-phase Response Factor, STAT-3, APRF)

Antibodies / Antibodies-Transcription Factors, STAT

-20°C

Supplied as a liquid PBS, 0.05% sodium azide, pH 7.2.

Synthetic phosphopeptide derived from human Stat3 around the phosphorylation site of Tyrosine 705.

Membrane receptor signaling by various ligands, including interferons and growth hormones such as EGF, induces activation of JAK kinases which then leads to tyrosine phosphorylation of the various Stat transcription factors. Stat1 and Stat2 are induced by IFN-alpha and form a heterodimer which is part of the ISGF3 transcription factor complex. Although early reports indicate Stat3 activation by EGF and IL-6, it has been shown that Stat3beta appears to be activated by both while Stat3alpha is activated by EGF, but not by IL-6. Highest expresion of Stat4 is seen in testis and myeloid cells. IL-12 has been identified as an activator of Stat4. Stat5 has been shown to be activated by Prolactin and by IL-3. Stat6 is involved in IL-4 activated signaling pathways.

Applications:
Suitable for use in Western Blot, Immunoprecipitation, Immunohistochemistry. Other applications not tested.

Recommended Dilution:
Western Blot: 1:500-1:1000
Immunohistochemistry: 1:50-1:200
Immunoprecipitation: 1:50-1:200
Optimal dilutions to be determined by the researcher.

Storage and Stability:
May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.