5UPL:
reference: CDC42 binds PAK4 via an extended GTPase-effector interface., Ha BH, Boggon TJ, Proc Natl Acad Sci U S A. 2018 Jan 2. pii: 1717437115. doi:, 10.1073/pnas.1717437115. PMID: 29295922

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).