Characterization of the iron-sulfur cluster N7 (N1c) in the subunit NuoG of the proton-translocating NADH-quinone oxidoreductase from Escherichia coli.

Abstract excerpt

The proton-pumping NADH-quinone oxidoreductase from Escherichia coli houses nine iron-sulfur clusters, eight of which are found in its mitochondrial counterpart, complex I. The extra putative iron-sulfur cluster binding site with a CXXCXXXCX(27)C motif in the NuoG subunit has been assigned to ligate a [2Fe-2S] (N1c). However, we have shown previously that the Thermus thermophilus N1c fragment containing this...

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