1AQE:
reference: Structural and kinetic studies of the Y73E mutant of octaheme cytochrome c3 (Mr = 26 000) from Desulfovibrio desulfuricans Norway., Aubert C, Giudici-Orticoni MT, Czjzek M, Haser R, Bruschi M, Dolla A, Biochemistry 1998 Feb 24;37(8):2120-30. PMID: 9485359

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