Reaction: NADH + ubiquinone + 5 H+in = NAD+ + ubiquinol + 4 H+out
Other name(s): ubiquinone reductase; type 1 dehydrogenase; complex 1 dehydrogenase; coenzyme Q reductase; complex I (electron transport chain); complex I (mitochondrial electron transport); complex I (NADH:Q1 oxidoreductase); dihydronicotinamide adenine dinucleotide-coenzyme Q reductase; DPNH-coenzyme Q reductase; DPNH-ubiquinone reductase; mitochondrial electron transport complex 1; mitochondrial electron transport complex I; NADH coenzyme Q1 reductase; NADH-coenzyme Q oxidoreductase; NADH-coenzyme Q reductase; NADH-CoQ oxidoreductase; NADH-CoQ reductase; NADH-ubiquinone reductase; NADH-ubiquinone oxidoreductase; NADH-ubiquinone-1 reductase; reduced nicotinamide adenine dinucleotide-coenzyme Q reductase; NADH:ubiquinone oxidoreductase complex; NADH-Q6 oxidoreductase; electron transfer complex I; NADH2 dehydrogenase (ubiquinone)
Systematic name: NADH:ubiquinone oxidoreductase
Comments: A flavoprotein (FMN) containing iron-sulfur clusters. The complex is present in mitochondria and aerobic bacteria. Breakdown of the complex can release EC 18.104.22.168, NADH dehydrogenase. In photosynthetic bacteria, reversed electron transport through this enzyme can reduce NAD+ to NADH.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number: 9028-04-0
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