Anti-STAT1 (Signal Transducer and Activator of Transcription 1), clone 3A28

Stat1, while activated in response to a large number of ligands (1), appears to be essential for responsiveness to IFN-alpha and IFN-gamma (2,3). Phosphorylation of Stat1 at Tyr701 induces Stat1 dimerization, nuclear translocation and DNA binding (4). Stat1 has two isoforms, Stat1alpha (91kD) and the splice variant Stat1beta/Stat2 (84kD). In most cells, both isoforms are activated by IFN-alpha, but only Stat1alpha is activated by IFN-gamma. Stat1 has been found to be inappropriately activated in many tumors (5). Applications: Suitable for use in ELISA, Western Blot and Immunopreipitation. Other applications have not been tested. Recommended Dilution: Western Blot: 1:1000, Immunoprecipitation: 1:100, 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 at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.