ID   NUOA2_GEOMG             Reviewed;         118 AA.
AC   Q39QA7;
DT   10-FEB-2009, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   25-MAY-2022, entry version 87.
DE   RecName: Full=NADH-quinone oxidoreductase subunit A 2 {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 2 {ECO:0000255|HAMAP-Rule:MF_01394};
DE   AltName: Full=NDH-1 subunit A 2 {ECO:0000255|HAMAP-Rule:MF_01394};
DE   AltName: Full=NUO1 2 {ECO:0000255|HAMAP-Rule:MF_01394};
GN   Name=nuoA2 {ECO:0000255|HAMAP-Rule:MF_01394}; OrderedLocusNames=Gmet_3355;
OS   Geobacter metallireducens (strain ATCC 53774 / DSM 7210 / GS-15).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfuromonadales;
OC   Geobacteraceae; Geobacter.
OX   NCBI_TaxID=269799;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 53774 / DSM 7210 / GS-15;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Di Bartolo G., Chain P., Schmutz J.,
RA   Larimer F., Land M., Kyrpides N., Ivanova N., Richardson P.;
RT   "Complete sequence of Geobacter metallireducens GS-15.";
RL   Submitted (OCT-2005) 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; CP000148; ABB33567.1; -; Genomic_DNA.
DR   RefSeq; WP_004512581.1; NC_007517.1.
DR   AlphaFoldDB; Q39QA7; -.
DR   SMR; Q39QA7; -.
DR   STRING; 269799.Gmet_3355; -.
DR   EnsemblBacteria; ABB33567; ABB33567; Gmet_3355.
DR   KEGG; gme:Gmet_3355; -.
DR   eggNOG; COG0838; Bacteria.
DR   HOGENOM; CLU_119549_3_1_7; -.
DR   OMA; RFPVKYY; -.
DR   OrthoDB; 1748431at2; -.
DR   Proteomes; UP000007073; 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..118
FT                   /note="NADH-quinone oxidoreductase subunit A 2"
FT                   /id="PRO_0000362692"
FT   TRANSMEM        5..25
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01394"
FT   TRANSMEM        60..80
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01394"
FT   TRANSMEM        87..107
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01394"
SQ   SEQUENCE   118 AA;  13316 MW;  6192FD0FAF14F785 CRC64;
     MLGAYLPILV LVAIAVIFGL CSLVFSSLIG QKKPSVVKLA PYECGCEPVG SARERFSVKF
     YIIAMLFILF DIEAVFLYPW SVLFKRLGMF GVMEMGVFIV ILFVGYIYVW KKGALEWE