Anti-Stat3 (S691) Antibody

The STAT3 transcription factor can be phosphorylated at serine 691, and this rabbit polyclonal antibody from Antibodies.com specifically recognizes that modified residue on the protein. Raised in rabbit and supplied at 1 mg/ml in phosphate buffered saline with 15 mM sodium azide at approximately pH 7.2, the unconjugated reagent is validated for western blot and immunohistochemistry across human, mouse, and rat samples.

Each vial contains 50 µl of antibody, allowing multiple experiments at standard working dilutions. The reagent supports research use only applications, including studies of cytokine and growth factor signaling, oncogenic pathways involving aberrant STAT3 activation, and downstream readouts where S691 phosphorylation status serves as a functional marker in cell signaling research.

For handling, store refrigerated and protect from light. For longer-term storage, aliquot and freeze at -20°C to preserve antibody activity and minimize freeze-thaw cycles.