4G3R:
reference: Crystal Structures of Substrate-Free and Nitrosyl Cytochrome P450cin: Implications for O2 Activation., Madrona Y, Tripathi S, Li H, Poulos TL, Biochemistry. 2012 Jul 9. PMID: 22775403

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