PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18957427-8 2008 Moreover, the expression of dominant-negative Rab5, unable to exchange GDP for GTP, interfered with the agonist-induced dissociation of Rab5 from the syndecan-1 cytoplasmic domain and significantly inhibited syndecan-1 shedding induced by several distinct agonists. Guanosine Diphosphate 71-74 RAB5A, member RAS oncogene family Homo sapiens 46-50 18957427-9 2008 Based on these data, we propose that Rab5 is a critical regulator of syndecan-1 shedding that serves as an on-off molecular switch through its alternation between the GDP-bound and GTP-bound forms. Guanosine Diphosphate 167-170 RAB5A, member RAS oncogene family Homo sapiens 37-41