2WBL:
reference: 3D structure of a binary ROP-PRONE complex: the final intermediate for a complete set of molecular snapshots of the RopGEF reaction., Thomas C, Fricke I, Weyand M, Berken A, Biol Chem. 2009 Mar 31. PMID: 19335195

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