1MGN:
reference: His64(E7)-->Tyr apomyoglobin as a reagent for measuring rates of hemin dissociation., Hargrove MS, Singleton EW, Quillin ML, Ortiz LA, Phillips GN Jr, Olson JS, Mathews AJ, J Biol Chem 1994 Feb 11;269(6):4207-14. PMID: 8307983

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