FEATURES

FAMILY

DESCRIPTION

Also known as RAC3_HUMAN, RAC3. Plasma membrane-associated small GTPase which cycles between an active GTP-bound and inactive GDP-bound state. In active state binds to a variety of effector proteins to regulate cellular responses, such as cell spreading and the formation of actin-based protusions including lamellipodia and membrane ruffles. Promotes cell adhesion and spreading on fibrinogen in a CIB1 and alpha-IIb/beta3 integrin-mediated manner. Interacts with the GEF protein DOCK7, which promotes the exchange between GDP and GTP, and therefore activates it (PubMed:16982419). Interacts with C1D (PubMed:9852280). Interacts (via C-terminal region) with CIB1; the interaction induces their association with the cytoskeleton upon alpha-IIb/beta3 integrin-mediated adhesion (PubMed:11756406). Interacts with NRBP (PubMed:11956649).

EXTERNAL LINKS

RAC3

Ras-related C3 botulinum toxin substrate 3

RAC3

Molecular Synopsis