2CYP:
reference: Crystal structure of yeast cytochrome c peroxidase refined at 1.7-A resolution., Finzel BC, Poulos TL, Kraut J, J Biol Chem 1984 Nov 10;259(21):13027-36. PMID: 6092361

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