1HH5:
reference: Structure of cytochrome c7 from Desulfuromonas acetoxidans at 1.9 A resolution., Czjzek M, Arnoux P, Haser R, Shepard W, Acta Crystallogr D Biol Crystallogr 2001 May;57(Pt 5):670-8. PMID: 11320307

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