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P80268 - NUO2_SOLTU


NADH-ubiquinone oxidoreductase 18 kDa subunit

Solanum tuberosum (Potato)
Reviewed - Annotation score: 2 out of 5- Experimental evidence at protein leveli
  1. Functioni

    Transfer of electrons from NADH to the respiratory chain. The immediate electron acceptor for the enzyme is believed to be ubiquinone.

    Catalytic activityi

    NADH + ubiquinone + 5 H+(In) = NAD+ + ubiquinol + 4 H+(Out).
    NADH + acceptor = NAD+ + reduced acceptor.

    GO - Molecular functioni

    1. NADH dehydrogenase (ubiquinone) activity Source: UniProtKB-EC

    Keywords - Molecular functioni


    Keywords - Ligandi

    NAD, Ubiquinone

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    NADH-ubiquinone oxidoreductase 18 kDa subunit (EC:, EC:
    Alternative name(s):
    Complex I-18kD
    Short name:
    OrganismiSolanum tuberosum (Potato)
    Taxonomic identifieri4113 [NCBI]
    Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeasteridslamiidsSolanalesSolanaceaeSolanoideaeSolaneaeSolanum
    ProteomesiUP000011115: Unplaced

    Subcellular locationi

    GO - Cellular componenti

    1. mitochondrial inner membrane Source: UniProtKB-SubCell

    Keywords - Cellular componenti

    Membrane, Mitochondrion, Mitochondrion inner membrane

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Chaini1 – ›30›30NADH-ubiquinone oxidoreductase 18 kDa subunitPRO_0000118850Add


    Subunit structurei

    Complex I is composed of about 45 different subunits.By similarity


    Sequence statusi: Fragment.

    P80268-1 [UniParc]FASTAAdd to Basket

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    ASEALVEIKP GEIGMVSGIP DEHLRRFVVI                         30
    Mass (Da):3,263
    Last modified:February 1, 1996 - v2

    Experimental Info

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Non-terminal residuei30 – 301

    Sequence databases



    Sequence databases

    PIRi H49732.

    3D structure databases

    ModBasei Search...
    MobiDBi Search...

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Family and domain databases

    ProtoNeti Search...


    1. "New insights into the composition, molecular mass and stoichiometry of the protein complexes of plant mitochondria."
      Jansch L., Kruft V., Schmitz U.K., Braun H.P.
      Plant J. 9:357-368(1996) [PubMed] [Europe PMC] [Abstract]
      Cited for: PROTEIN SEQUENCE.
      Tissue: Tuber.
    2. "Purification of the NADH:ubiquinone oxidoreductase (complex I) of the respiratory chain from the inner mitochondrial membrane of Solanum tuberosum."
      Herz U., Schroeder W., Liddell A., Leaver C.J., Brennicke A., Grohmann L.
      J. Biol. Chem. 269:2263-2269(1994) [PubMed] [Europe PMC] [Abstract]
      Cited for: PROTEIN SEQUENCE OF 1-22.
      Strain: cv. Bintje.
      Tissue: Tuber.

    Entry informationi

    Entry nameiNUO2_SOLTU
    AccessioniPrimary (citable) accession number: P80268
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: February 1, 1994
    Last sequence update: February 1, 1996
    Last modified: October 1, 2014
    This is version 59 of the entry and version 2 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)
    Annotation programPlant Protein Annotation Program


    Keywords - Technical termi

    Complete proteome, Direct protein sequencing, Reference proteome

    External Data

    Dasty 3