Description_x000D_ General description_x000D_ Signal transducer and activator of transcription 1 (STAT1) gene is mapped to human chromosome 2q32.2. It is part of the STAT family of proteins. STAT1 exists in two isoforms, STAT1α and STAT1β with molecular weight of 91kDa and 84kDa, respectively. The protein shows ubiquitous expression._x000D_ Immunogen_x000D_ Peptide sequence around phosphorylation site of tyrosine 701 (T-G-Y(p)-I-K), according to the protein STAT1._x000D_ Physical form_x000D_ Solution in phosphate-buffered saline containing 0.02% sodium azide and 50% glycerol_x000D_ Disclaimer_x000D_ Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals._x000D_ Biochem/physiol Actions_x000D_ Signal transducer and activator of transcription 1 (STAT1) plays a vital role in interferon (IFN) signaling. Phospho-STAT1 regulates pro- and anti-apoptotic genes following several stress-induced responses. It interacts with p53 and promotes p53-mediated transcriptional gene activity and apoptosis. STAT1 is also an essential factor of stress-induced and DNA damage-induced checkpoint pathways and thus, acts as a tumor suppressor._x000D_ Features and Benefits_x000D_ Evaluate our antibodies with complete peace of mind. If the antibody does not perform in your application, we will issue a full credit or replacement antibody. Learn more.