1QAX:
reference: Substrate-induced closure of the flap domain in the ternary complex structures provides insights into the mechanism of catalysis by 3-hydroxy-3-methylglutaryl-CoA reductase., Tabernero L, Bochar DA, Rodwell VW, Stauffacher CV, Proc Natl Acad Sci U S A 1999 Jun 22;96(13):7167-71. PMID: 10377386

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