1PUC:
reference: Crystal structure of the yeast cell-cycle control protein, p13suc1, in a strand-exchanged dimer., Khazanovich N, Bateman K, Chernaia M, Michalak M, James M, Structure 1996 Mar 15;4(3):299-309. PMID: 8805536

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