Phospho PDGF beta receptor: PDGF chain B homodimer GAP binds to PDGF-beta receptors only Authored: Garapati, P V, Jassal, B, 2008-11-24 10:14:27 Edited: Garapati, P V, Jassal, B, 2008-11-24 10:14:27 GTPase-activating protein (GAP) has two SH2 domains which bind only to PDGF beta-receptors on Tyr771. GAP does not bind the alpha-receptor. GAP converts Ras-GTP to Ras-GDP, deactivating Ras. Pubmed1314164 Pubmed1375321 Pubmed9739761 Reactome Database ID Release 43186798 Reactome, http://www.reactome.org ReactomeREACT_16950 Reviewed: Heldin, CH, 2008-11-23 19:29:34 Phospho-beta receptor homodimer:GAP