Description_x000D_ Biochem/physiol Actions_x000D_ PDGFRα (platelet-derived growth factor receptor α) is a member of the PDGFR family of membrane receptors with intrinsic tyrosine kinase activity. Aberrant expression of PDGFRα has been linked to developmental abnormalities in vertebrate models and has been implicated in multiple disease states in humans. There is widespread expression of PDGFRα in renal cell types involved in fibrotic and sclerosing processes. PDGF and its receptor PDGFRα are inducers of fibrosis in the repair phase of inflammatory bowel disease and they may also be involved in the active inflammatory phase._x000D_ Physical form_x000D_ Supplied in 50 mM Tris-HCl, pH 7.5, with 150 mM NaCl, 0.25 mM DTT, 0.1 mM EGTA, 0.1 mM EDTA, 0.1 mM PMSF, and 25% glycerol._x000D_ Legal Information_x000D_ PRECISIO is a registered trademark of Sigma-Aldrich Co. LLC