1COT:
reference: X-Ray structure of the cytochrome c2 isolated from Paracoccus denitrificans refined to 1.7-A resolution., Benning MM, Meyer TE, Holden HM, Arch Biochem Biophys 1994 May 1;310(2):460-6. PMID: 8179333

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