ID   NUO2_SOLTU              Reviewed;          30 AA.
AC   P80268;
DT   01-FEB-1994, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 2.
DT   25-MAY-2022, entry version 75.
DE   RecName: Full=NADH-ubiquinone oxidoreductase 18 kDa subunit;
DE            EC=7.1.1.2;
DE   AltName: Full=Complex I-18kD;
DE            Short=CI-18kD;
DE   Flags: Fragment;
OS   Solanum tuberosum (Potato).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Solanales; Solanaceae; Solanoideae; Solaneae; Solanum.
OX   NCBI_TaxID=4113;
RN   [1]
RP   PROTEIN SEQUENCE.
RC   TISSUE=Tuber;
RX   PubMed=8919912; DOI=10.1046/j.1365-313x.1996.09030357.x;
RA   Jansch L., Kruft V., Schmitz U.K., Braun H.P.;
RT   "New insights into the composition, molecular mass and stoichiometry of the
RT   protein complexes of plant mitochondria.";
RL   Plant J. 9:357-368(1996).
RN   [2]
RP   PROTEIN SEQUENCE OF 1-22.
RC   STRAIN=cv. Bintje; TISSUE=Tuber;
RX   PubMed=8294484; DOI=10.1016/s0021-9258(17)42163-6;
RA   Herz U., Schroeder W., Liddell A., Leaver C.J., Brennicke A., Grohmann L.;
RT   "Purification of the NADH:ubiquinone oxidoreductase (complex I) of the
RT   respiratory chain from the inner mitochondrial membrane of Solanum
RT   tuberosum.";
RL   J. Biol. Chem. 269:2263-2269(1994).
CC   -!- FUNCTION: Transfer of electrons from NADH to the respiratory chain. The
CC       immediate electron acceptor for the enzyme is believed to be
CC       ubiquinone.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a ubiquinone + 5 H(+)(in) + NADH = a ubiquinol + 4 H(+)(out) +
CC         NAD(+); Xref=Rhea:RHEA:29091, Rhea:RHEA-COMP:9565, Rhea:RHEA-
CC         COMP:9566, ChEBI:CHEBI:15378, ChEBI:CHEBI:16389, ChEBI:CHEBI:17976,
CC         ChEBI:CHEBI:57540, ChEBI:CHEBI:57945; EC=7.1.1.2;
CC   -!- SUBUNIT: Complex I is composed of about 45 different subunits.
CC       {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane; Peripheral membrane
CC       protein; Matrix side.
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DR   PIR; H49732; H49732.
DR   AlphaFoldDB; P80268; -.
DR   SMR; P80268; -.
DR   Proteomes; UP000011115; Unassembled WGS sequence.
DR   GO; GO:0005743; C:mitochondrial inner membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:UniProtKB-EC.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Membrane; Mitochondrion;
KW   Mitochondrion inner membrane; NAD; Oxidoreductase; Reference proteome;
KW   Translocase; Ubiquinone.
FT   CHAIN           1..>30
FT                   /note="NADH-ubiquinone oxidoreductase 18 kDa subunit"
FT                   /id="PRO_0000118850"
FT   NON_TER         30
SQ   SEQUENCE   30 AA;  3263 MW;  21AA88B3FAEDFE1D CRC64;
     ASEALVEIKP GEIGMVSGIP DEHLRRFVVI