1CPT:
reference: Crystal structure and refinement of cytochrome P450terp at 2.3 A resolution., Hasemann CA, Ravichandran KG, Peterson JA, Deisenhofer J, J Mol Biol 1994 Mar 4;236(4):1169-85. PMID: 8120894

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