pSTAT3

The protein encoded by this gene 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. This protein is activated through phosphorylation in response to various cytokines and growth factors including IFNs, EGF, IL5, IL6, HGF, LIF and BMP2. This protein mediates the expression of a variety of genes in response to cell stimuli, and thus plays a key role in many cellular processes such as cell growth and apoptosis. The small GTPase Rac1 has been shown to bind and regulate the activity of this protein. PIAS3 protein is a specific inhibitor of this protein. Three alternatively spliced transcript variants encoding distinct isoforms have been described.

Reference: http://www.ncbi.nlm.nih.gov/gene/6774

Assay type: Immunohistochemistry (IHC)
What is analyzed: Phosphorylation status of human signal transducer and activator of transcription 3
Platform: VENTANA BenchMark® XT
Kit/antibody: Rabbit monoclonal to phosphorylated STAT3 Tyr705 (Thermo Scientific #MA5-11189), Cross Reactivity: Human, Mouse, Non-Human Primate, Rat
Tissue Type: Skin
Required material: FFPE tissue