1L2U:
reference: Substrate binding induces domain movements in orotidine 5'-monophosphate decarboxylase., Harris P, Poulsen JC, Jensen KF, Larsen S, J Mol Biol 2002 May 10;318(4):1019-29. PMID: 12054799

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