Clone Number: SOS-01
Immunogen: Peptide corresponding to amino acids THPSMHRDGPPLLENAHSS of human Sos protein.
Concentration: 1 mg/ml
Format: Purified by protein-A affinity chromatography.
Storage buffer: Phosphate buffered saline (PBS), pH 7.4, 15 mM sodium azide
Additional info: The guanine nucleotide exchange factor Sos (son-of-sevenless) is a complex multidomain protein that activates the small GTPase Ras (H-Ras, K-Ras, N-Ras, but not functionally distinct R-Ras) in response to receptor tyrosine kinase stimulation. Nucleotide exchange activity of Sos is stimulated by allosteric Ras binding. By another (separable) guanine exchange factor domain domain Sos modulates activity of Rac/Rho GTPases. Sos thus integrates signals that affect both gene expression and cytoskeletal reorganization; the Sos-mediated Ras-activation and Rac activation differ in composition and stability of the formed complex.SpecificityThe antibody SM2 recognizes an epitope included within amino acids 8-23 of STAT1, a 91 kDa transcriptional factor involved in a variety of systems including antiviral responses and interferon alpha (IFN-alpha) and gamma (IFN-gamma) signal transduction.Application detailsWestern blotting: Recommended dilution: 1 μg/ml; positive control: HeLa human cervix carcinoma cell line, reducing conditions.