Quinone binding and reduction by respiratory complex I.

Abstract excerpt

Complex I (NADH:ubiquinone oxidoreductase) has a central function in oxidative phosphorylation and hence for efficient ATP production in most prokaryotic and eukaryotic cells. This huge membrane protein complex transfers electrons from NADH to ubiquinone and couples this exergonic redox reaction to endergonic proton pumping across bioenergetic membranes. Although quinone reduction seems to be critical for energy...

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