1ZBY:
reference: High-resolution crystal structures and spectroscopy of native and compound I cytochrome c peroxidase., Bonagura CA, Bhaskar B, Shimizu H, Li H, Sundaramoorthy M, McRee DE, Goodin DB, Poulos TL, Biochemistry 2003 May 20;42(19):5600-8. PMID: 12741816

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