PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16998826-1 2006 The Rho GTPases-Rho, Rac and Cdc42-act as molecular switches, cycling between an active GTP-bound state and an inactive GDP-bound state, to regulate the actin cytoskeleton. Guanosine Diphosphate 120-123 cell division cycle 42 Homo sapiens 29-34