1VBS:
reference: Mapping the stereospecificity of peptidyl prolyl cis/trans isomerases., Schiene C, Reimer U, Schutkowski M, Fischer G, FEBS Lett 1998 Aug 7;432(3):202-6. PMID: 9720925

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