1DVG:
reference: Crystal structure of rat heme oxygenase-1 in complex with heme., Sugishima M, Omata Y, Kakuta Y, Sakamoto H, Noguchi M, Fukuyama K, FEBS Lett 2000 Apr 7;471(1):61-6. PMID: 10760513

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