| Type | subunit | Description | Homodimer and homotetramer via the coiled coil regions. Interacts tightly with GTP-bound but not GDP-bound CDC42. Forms a tripartite complex with MYO18A and LRP35A with the latter acting as an adapter connecting CDC42BPA and MYO18A. LRP35A binding results in activation of CDC42BPA by abolition of its negative autoregulation. Interacts with LURAP1 (By similarity). Interacts (via AGC-kinase C-terminal domain) with FAM89B/LRAP25 (via LRR repeat). Forms a tripartite complex with FAM89B/LRAP25 and LIMK1 (PubMed:25107909). |
