1RRP:
reference: Structure of a Ran-binding domain complexed with Ran bound to a GTP analogue: implications for nuclear transport., Vetter IR, Nowak C, Nishimoto T, Kuhlmann J, Wittinghofer A, Nature 1999 Mar 4;398(6722):39-46. PMID: 10078529

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