3I8R:
reference: Dioxygen activation for the self-degradation of heme: reaction mechanism and regulation of heme oxygenase., Matsui T, Iwasaki M, Sugiyama R, Unno M, Ikeda-Saito M, Inorg Chem. 2010 Apr 19;49(8):3602-9. PMID: 20380462

This OCA Structure page
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