2Z6F:
reference: Structural basis for multimeric heme complexation through a specific protein-heme interaction: the case of the third neat domain of IsdH from Staphylococcus aureus., Watanabe M, Tanaka Y, Suenaga A, Kuroda M, Yao M, Watanabe N, Arisaka F, Ohta T, Tanaka I, Tsumoto K, J Biol Chem. 2008 Oct 17;283(42):28649-59. Epub 2008 Jul 30. PMID: 18667422

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