1AJG:
reference: Photolysis-induced structural changes in single crystals of carbonmonoxy myoglobin at 40 K., Teng TY, Srajer V, Moffat K, Nat Struct Biol 1994 Oct;1(10):701-5. PMID: 7634074

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