ID   NUOH_MAGSA              Reviewed;         341 AA.
AC   Q2W3J1;
DT   13-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT   10-JAN-2006, sequence version 1.
DT   25-MAY-2022, entry version 89.
DE   RecName: Full=NADH-quinone oxidoreductase subunit H {ECO:0000255|HAMAP-Rule:MF_01350};
DE            EC=7.1.1.- {ECO:0000255|HAMAP-Rule:MF_01350};
DE   AltName: Full=NADH dehydrogenase I subunit H {ECO:0000255|HAMAP-Rule:MF_01350};
DE   AltName: Full=NDH-1 subunit H {ECO:0000255|HAMAP-Rule:MF_01350};
GN   Name=nuoH {ECO:0000255|HAMAP-Rule:MF_01350}; OrderedLocusNames=amb2780;
OS   Magnetospirillum magneticum (strain AMB-1 / ATCC 700264).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC   Rhodospirillaceae; Magnetospirillum.
OX   NCBI_TaxID=342108;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=AMB-1 / ATCC 700264;
RX   PubMed=16303747; DOI=10.1093/dnares/dsi002;
RA   Matsunaga T., Okamura Y., Fukuda Y., Wahyudi A.T., Murase Y., Takeyama H.;
RT   "Complete genome sequence of the facultative anaerobic magnetotactic
RT   bacterium Magnetospirillum sp. strain AMB-1.";
RL   DNA Res. 12:157-166(2005).
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. This subunit may bind ubiquinone.
CC       {ECO:0000255|HAMAP-Rule:MF_01350}.
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_01350};
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_01350}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01350}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01350}.
CC   -!- SIMILARITY: Belongs to the complex I subunit 1 family.
CC       {ECO:0000255|HAMAP-Rule:MF_01350}.
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DR   EMBL; AP007255; BAE51584.1; -; Genomic_DNA.
DR   RefSeq; WP_011385158.1; NC_007626.1.
DR   AlphaFoldDB; Q2W3J1; -.
DR   SMR; Q2W3J1; -.
DR   STRING; 342108.amb2780; -.
DR   EnsemblBacteria; BAE51584; BAE51584; amb2780.
DR   KEGG; mag:amb2780; -.
DR   HOGENOM; CLU_015134_0_1_5; -.
DR   OMA; WSGWASN; -.
DR   OrthoDB; 1559067at2; -.
DR   Proteomes; UP000007058; 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:0016655; F:oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor; IEA:UniProtKB-UniRule.
DR   GO; GO:0048038; F:quinone binding; IEA:UniProtKB-KW.
DR   HAMAP; MF_01350; NDH1_NuoH; 1.
DR   InterPro; IPR001694; NADH_UbQ_OxRdtase_su1/FPO.
DR   InterPro; IPR018086; NADH_UbQ_OxRdtase_su1_CS.
DR   PANTHER; PTHR11432; PTHR11432; 1.
DR   Pfam; PF00146; NADHdh; 1.
DR   PROSITE; PS00667; COMPLEX1_ND1_1; 1.
DR   PROSITE; PS00668; COMPLEX1_ND1_2; 1.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Membrane; NAD; Quinone;
KW   Reference proteome; Translocase; Transmembrane; Transmembrane helix;
KW   Ubiquinone.
FT   CHAIN           1..341
FT                   /note="NADH-quinone oxidoreductase subunit H"
FT                   /id="PRO_0000240084"
FT   TRANSMEM        16..36
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        86..106
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        119..139
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        165..185
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        191..211
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        254..274
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        276..296
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        315..335
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
SQ   SEQUENCE   341 AA;  37778 MW;  3AAA5DC229A6E10B CRC64;
     MVDLLTGLLP PFVWRLLIIV LQIVAIVLPL LIAVAYLTYA ERKVIGAMQL RKGPNVVGPF
     GLLQPMADGL KLFVKETVLP TSANRVVFVG APMLTFFLAL VAWAVIPFDK GWVLADINVG
     VLYLFAISSL GVYGIIMAGW ASNSKYAFLG GLRSAAQMVS YEVSIGFILI SVLLTVGSLN
     LSDVVTAQSK MWFIVPHFPL FILFIISGLA ETNRAPFDLP EAEAELVAGY NVEYSAMTFA
     LFFLGEYANM LMMGAMTSIL FLGGWMAPFG LGWLPIPGLI WFVLKICLVM FVFLWVRATF
     PRYRYDQLMR LGWKVFLPFS LFWLVLTASV LTAFGWLPNQ G