1R0I:
reference: Metal-substituted derivatives of the rubredoxin from Clostridium pasteurianum., Maher M, Cross M, Wilce MC, Guss JM, Wedd AG, Acta Crystallogr D Biol Crystallogr 2004 Feb;60(Pt 2):298-303. Epub 2004, Jan 23. PMID: 14747706

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