1CIF:
reference: Structural and functional effects of multiple mutations at distal sites in cytochrome c., Lo TP, Komar-Panicucci S, Sherman F, McLendon G, Brayer GD, Biochemistry 1995 Apr 18;34(15):5259-68. PMID: 7711047

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