1KX7:
reference: Solution structure of a monoheme ferrocytochrome c from Shewanella putrefaciens and structural analysis of sequence-similar proteins: functional implications., Bartalesi I, Bertini I, Hajieva P, Rosato A, Vasos PR, Biochemistry 2002 Apr 23;41(16):5112-9. PMID: 11955059

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