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Cytochrome c7 and related cytochrome c This family includes cytochromes c7 and c7-type. In cytochromes c7 all three haems are bis-His co-ordinated, while in c7-type the last haem is His-Met co-ordinated. Desulfuromonas acetoxidans and Geobacter metallireducens cytochrome c7 participate in the anaerobic iron respiration, but Geobacter metallireducens cytochrome c7 hasn't a Fe(III) reductase activity. This entry also includes cytochrome c nitrite reductase subunit NrfH from Desulfovibrio vulgaris which forms a complex with cytochrome c nitrite reductase NrfA.
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