1L1Q:
reference: Closed site complexes of adenine phosphoribosyltransferase from Giardia lamblia reveal a mechanism of ribosyl migration., Shi W, Sarver AE, Wang CC, Tanaka KS, Almo SC, Schramm VL, J Biol Chem 2002 Oct 18;277(42):39981-8. Epub 2002 Aug 8. PMID: 12171925

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