ID   NUOH_RUTMC              Reviewed;         357 AA.
AC   A1AVR9;
DT   21-AUG-2007, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 1.
DT   03-AUG-2022, entry version 85.
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=Rmag_0244;
OS   Ruthia magnifica subsp. Calyptogena magnifica.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; sulfur-oxidizing symbionts;
OC   Candidatus Ruthia.
OX   NCBI_TaxID=413404;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=17303757; DOI=10.1126/science.1138438;
RA   Newton I.L.G., Woyke T., Auchtung T.A., Dilly G.F., Dutton R.J.,
RA   Fisher M.C., Fontanez K.M., Lau E., Stewart F.J., Richardson P.M.,
RA   Barry K.W., Saunders E., Detter J.C., Wu D., Eisen J.A., Cavanaugh C.M.;
RT   "The Calyptogena magnifica chemoautotrophic symbiont genome.";
RL   Science 315:998-1000(2007).
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; CP000488; ABL02026.1; -; Genomic_DNA.
DR   RefSeq; WP_011737651.1; NC_008610.1.
DR   AlphaFoldDB; A1AVR9; -.
DR   SMR; A1AVR9; -.
DR   STRING; 413404.Rmag_0244; -.
DR   EnsemblBacteria; ABL02026; ABL02026; Rmag_0244.
DR   KEGG; rma:Rmag_0244; -.
DR   eggNOG; COG1005; Bacteria.
DR   HOGENOM; CLU_015134_0_1_6; -.
DR   OMA; MYVGMGI; -.
DR   OrthoDB; 1559067at2; -.
DR   Proteomes; UP000002587; 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; 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..357
FT                   /note="NADH-quinone oxidoreductase subunit H"
FT                   /id="PRO_0000298849"
FT   TRANSMEM        25..45
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        94..114
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        130..150
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        166..186
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        201..221
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        294..314
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        329..349
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
SQ   SEQUENCE   357 AA;  40323 MW;  B695BE86332F85EC CRC64;
     MELWQAFVQM VYTLTPWFDG TIASILIILI KAITLVIPLM LVVAYFTYAE RKVIGYMQLR
     IGPNRVGPKG WLQPIADALK LMTKEIIFPT KANIYLFLLA PVLAIAPAIA VWVVIPFDED
     IYITNLDISL LYVLAIGSIG VYGIILAGWA SNSKYPLLGA LRSASLLVSY EIVIGFALAT
     VVMIAGSVNL NTIVQAQQGG IIYWNFIPLF PMMIIFFISA LIETNRAPFD VVEGESEIVG
     GTHVEYSGMT FAVFFLAEYA NMILMAVLAV VMFFGGWHSP FEAIPYLESA FSWVPGIIWL
     LAKTTFFMFL YLWVRATFPR FRYDQIMRLS WKVFLPITII WIFVVALMTQ LKLEPWF