ID   NUOA1_CITBB             Reviewed;         134 AA.
AC   B5E973;
DT   10-FEB-2009, integrated into UniProtKB/Swiss-Prot.
DT   14-OCT-2008, sequence version 1.
DT   25-MAY-2022, entry version 67.
DE   RecName: Full=NADH-quinone oxidoreductase subunit A 1 {ECO:0000255|HAMAP-Rule:MF_01394};
DE            EC=7.1.1.- {ECO:0000255|HAMAP-Rule:MF_01394};
DE   AltName: Full=NADH dehydrogenase I subunit A 1 {ECO:0000255|HAMAP-Rule:MF_01394};
DE   AltName: Full=NDH-1 subunit A 1 {ECO:0000255|HAMAP-Rule:MF_01394};
DE   AltName: Full=NUO1 1 {ECO:0000255|HAMAP-Rule:MF_01394};
GN   Name=nuoA1 {ECO:0000255|HAMAP-Rule:MF_01394}; OrderedLocusNames=Gbem_0179;
OS   Citrifermentans bemidjiense (strain ATCC BAA-1014 / DSM 16622 / JCM 12645 /
OS   Bem) (Geobacter bemidjiensis).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfuromonadales;
OC   Geobacteraceae; Citrifermentans.
OX   NCBI_TaxID=404380;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-1014 / DSM 16622 / JCM 12645 / Bem;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Kiss H., Brettin T., Detter J.C., Han C.,
RA   Kuske C.R., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA   Lykidis A., Lovley D., Richardson P.;
RT   "Complete sequence of Geobacter bemidjiensis BEM.";
RL   Submitted (JUL-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: NDH-1 shuttles electrons from NADH, via FMN and iron-sulfur
CC       (Fe-S) centers, to quinones in the respiratory chain. The immediate
CC       electron acceptor for the enzyme in this species is believed to be
CC       ubiquinone. Couples the redox reaction to proton translocation (for
CC       every two electrons transferred, four hydrogen ions are translocated
CC       across the cytoplasmic membrane), and thus conserves the redox energy
CC       in a proton gradient. {ECO:0000255|HAMAP-Rule:MF_01394}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a quinone + 5 H(+)(in) + NADH = a quinol + 4 H(+)(out) +
CC         NAD(+); Xref=Rhea:RHEA:57888, ChEBI:CHEBI:15378, ChEBI:CHEBI:24646,
CC         ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:132124;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01394};
CC   -!- SUBUNIT: NDH-1 is composed of 14 different subunits. Subunits NuoA, H,
CC       J, K, L, M, N constitute the membrane sector of the complex.
CC       {ECO:0000255|HAMAP-Rule:MF_01394}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01394}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01394}.
CC   -!- SIMILARITY: Belongs to the complex I subunit 3 family.
CC       {ECO:0000255|HAMAP-Rule:MF_01394}.
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DR   EMBL; CP001124; ACH37210.1; -; Genomic_DNA.
DR   RefSeq; WP_012528618.1; NC_011146.1.
DR   AlphaFoldDB; B5E973; -.
DR   SMR; B5E973; -.
DR   STRING; 404380.Gbem_0179; -.
DR   EnsemblBacteria; ACH37210; ACH37210; Gbem_0179.
DR   KEGG; gbm:Gbem_0179; -.
DR   eggNOG; COG0838; Bacteria.
DR   HOGENOM; CLU_119549_2_0_7; -.
DR   OMA; CGVDPVG; -.
DR   OrthoDB; 1748431at2; -.
DR   Proteomes; UP000008825; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:InterPro.
DR   GO; GO:0048038; F:quinone binding; IEA:UniProtKB-KW.
DR   Gene3D; 1.20.58.1610; -; 1.
DR   HAMAP; MF_01394; NDH1_NuoA; 1.
DR   InterPro; IPR023043; NAD(P)H_OxRDtase_bac/plastid.
DR   InterPro; IPR000440; NADH_UbQ/plastoQ_OxRdtase_su3.
DR   InterPro; IPR038430; NDAH_ubi_oxred_su3_sf.
DR   PANTHER; PTHR11058; PTHR11058; 1.
DR   Pfam; PF00507; Oxidored_q4; 1.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Membrane; NAD; Quinone;
KW   Reference proteome; Translocase; Transmembrane; Transmembrane helix;
KW   Transport; Ubiquinone.
FT   CHAIN           1..134
FT                   /note="NADH-quinone oxidoreductase subunit A 1"
FT                   /id="PRO_0000362689"
FT   TRANSMEM        10..30
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01394"
FT   TRANSMEM        65..85
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01394"
FT   TRANSMEM        94..114
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01394"
SQ   SEQUENCE   134 AA;  14667 MW;  54CF6E17C682703A CRC64;
     MPVTAQQVEL IPLAIYTLFA VGLIGILLLA ARYLGSGKET SEKHIPFESG MVPTGNARHA
     SQVPFYLIAI FFIVFDVEGA FILAWATSWD LLGIPGLVHI TLFITVLLLG LVWLWMKGGL
     DWGPSAMRAR GKRS