2PS1:
reference: Ternary complex formation and induced asymmetry in orotate phosphoribosyltransferase(,)., Gonzalez-Segura L, Witte JF, McClard RW, Hurley TD, Biochemistry. 2007 Dec 11;46(49):14075-86. Epub 2007 Nov 20. PMID: 18020427

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