2ZZ7:
reference: Structural Characterization of the Molecular Events during a Slow Substrate-Product Transition in Orotidine 5'-Monophosphate Decarboxylase., Fujihashi M, Wei L, Kotra LP, Pai EF, J Mol Biol. 2009 Feb 21. PMID: 19236876

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