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Article

Semiquinone and cluster N6 signals in His-tagged proton-translocating NADH:ubiquinone oxidoreductase (complex I) from Escherichia coli.

The Journal of biological chemistry - 17 May 2013

Narayanan Madhavan, Gabrieli David J, Leung Steven A, Elguindy Mahmoud M, Glaser Carl A, Saju Nitha, Sinha Subhash C, Nakamaru-Ogiso Eiko

Abstract excerpt

NADH:ubiquinone oxidoreductase (complex I) pumps protons across the membrane using downhill redox energy. The Escherichia coli complex I consists of 13 different subunits named NuoA-N coded by the nuo operon. Due to the low abundance of the protein and some difficulty with the genetic manipulation of its large ~15-kb operon, purification of E. coli complex I has been technically challenging. Here, we generated a...

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Identifiers

PMID: 23543743
DOI: 10.1074/jbc.M113.467803
PMCID: PMC3656287

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Source receipt: pubmed, retrieved 7 Sept 2026.

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Semiquinone and cluster N6 signals in His-tagged proton-translocating NADH:ubiquinone oxidoreductase (complex I) from Escherichia coli.PMID 23543743Read ↗

Iron-sulfur cluster N5 is coordinated by an HXXXCXXCXXXXXC motif in the NuoG subunit of Escherichia coli NADH:quinone oxidoreductase (complex I).Semantic proximity Read ↗

Structure of the peripheral arm of a minimalistic respiratory complex I.Semantic proximity Read ↗

Iron-sulfur cluster N2 of the Escherichia coli NADH:ubiquinone oxidoreductase (complex I) is located on subunit NuoB.Semantic proximity Read ↗

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

Roles of Subunit ND2/NuoN in the Proton Pumping Coupling Mechanism of Complex I.Semantic proximity Read ↗

Catalytic importance of acidic amino acids on subunit NuoB of the Escherichia coli NADH:ubiquinone oxidoreductase (complex I).Semantic proximity Read ↗

Genetic analysis of the nuo locus, which encodes the proton-translocating NADH dehydrogenase in Escherichia coli.Semantic proximity Read ↗

The membrane subunit NuoL(ND5) is involved in the indirect proton pumping mechanism of Escherichia coli complex I.Semantic proximity Read ↗

Roles of subunit NuoL in the proton pumping coupling mechanism of NADH:ubiquinone oxidoreductase (complex I) from Escherichia coli.Semantic proximity Read ↗

A single amino acid residue controls ROS production in the respiratory Complex I from Escherichia coli.Semantic proximity Read ↗

Roles of subunit NuoK (ND4L) in the energy-transducing mechanism of Escherichia coli NDH-1 (NADH:quinone oxidoreductase).Semantic proximity Read ↗

Assembly of the Escherichia coli NADH:ubiquinone oxidoreductase (complex I).Semantic proximity Read ↗

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