ID   NUOD_HELMI              Reviewed;         364 AA.
AC   B0TH80;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   25-MAY-2022, entry version 80.
DE   RecName: Full=NADH-quinone oxidoreductase subunit D {ECO:0000255|HAMAP-Rule:MF_01358};
DE            EC=7.1.1.- {ECO:0000255|HAMAP-Rule:MF_01358};
DE   AltName: Full=NADH dehydrogenase I subunit D {ECO:0000255|HAMAP-Rule:MF_01358};
DE   AltName: Full=NDH-1 subunit D {ECO:0000255|HAMAP-Rule:MF_01358};
GN   Name=nuoD {ECO:0000255|HAMAP-Rule:MF_01358}; OrderedLocusNames=Helmi_21300;
GN   ORFNames=HM1_2199;
OS   Heliobacterium modesticaldum (strain ATCC 51547 / Ice1).
OC   Bacteria; Firmicutes; Clostridia; Eubacteriales; Heliobacteriaceae;
OC   Heliomicrobium.
OX   NCBI_TaxID=498761;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51547 / Ice1;
RX   PubMed=18441057; DOI=10.1128/jb.00299-08;
RA   Sattley W.M., Madigan M.T., Swingley W.D., Cheung P.C., Clocksin K.M.,
RA   Conrad A.L., Dejesa L.C., Honchak B.M., Jung D.O., Karbach L.E.,
RA   Kurdoglu A., Lahiri S., Mastrian S.D., Page L.E., Taylor H.L., Wang Z.T.,
RA   Raymond J., Chen M., Blankenship R.E., Touchman J.W.;
RT   "The genome of Heliobacterium modesticaldum, a phototrophic representative
RT   of the Firmicutes containing the simplest photosynthetic apparatus.";
RL   J. Bacteriol. 190:4687-4696(2008).
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 a
CC       menaquinone. 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_01358}.
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_01358};
CC   -!- SUBUNIT: NDH-1 is composed of 14 different subunits. Subunits NuoB, C,
CC       D, E, F, and G constitute the peripheral sector of the complex.
CC       {ECO:0000255|HAMAP-Rule:MF_01358}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_01358};
CC       Peripheral membrane protein {ECO:0000255|HAMAP-Rule:MF_01358};
CC       Cytoplasmic side {ECO:0000255|HAMAP-Rule:MF_01358}.
CC   -!- SIMILARITY: Belongs to the complex I 49 kDa subunit family.
CC       {ECO:0000255|HAMAP-Rule:MF_01358}.
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DR   EMBL; CP000930; ABZ84755.1; -; Genomic_DNA.
DR   RefSeq; WP_012283255.1; NC_010337.2.
DR   AlphaFoldDB; B0TH80; -.
DR   SMR; B0TH80; -.
DR   STRING; 498761.HM1_2199; -.
DR   EnsemblBacteria; ABZ84755; ABZ84755; HM1_2199.
DR   KEGG; hmo:HM1_2199; -.
DR   eggNOG; COG0649; Bacteria.
DR   HOGENOM; CLU_015134_1_2_9; -.
DR   OMA; IMGTSME; -.
DR   OrthoDB; 473681at2; -.
DR   Proteomes; UP000008550; Chromosome.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0051287; F:NAD binding; IEA:InterPro.
DR   GO; GO:0050136; F:NADH dehydrogenase (quinone) activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0048038; F:quinone binding; IEA:UniProtKB-KW.
DR   Gene3D; 1.10.645.10; -; 1.
DR   HAMAP; MF_01358; NDH1_NuoD; 1.
DR   InterPro; IPR001135; NADH_Q_OxRdtase_suD.
DR   InterPro; IPR014029; NADH_UbQ_OxRdtase_49kDa_CS.
DR   InterPro; IPR022885; NDH1_su_D/H.
DR   InterPro; IPR029014; NiFe-Hase_large.
DR   PANTHER; PTHR11993; PTHR11993; 1.
DR   Pfam; PF00346; Complex1_49kDa; 2.
DR   SUPFAM; SSF56762; SSF56762; 1.
DR   PROSITE; PS00535; COMPLEX1_49K; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Membrane; NAD; Quinone; Reference proteome; Translocase;
KW   Transport.
FT   CHAIN           1..364
FT                   /note="NADH-quinone oxidoreductase subunit D"
FT                   /id="PRO_0000357829"
SQ   SEQUENCE   364 AA;  40777 MW;  2F1360F187532B22 CRC64;
     MQTQTYELNF GPQHPSTHGV LRIVLELDGE VVVKATPVIG YLHRGIEKIC ENRTYIQTVP
     FTDRMDYLAG MGNNLGISQA VEKLMGVEVP ERAEYIRVIM CELSRIASHM ICCGSLVQDL
     GGVTGFVFFI RDREHILELF NRACGARMTF NYIRPGGVAQ DLPDGWVAQC RKFLADFKGM
     METYDKLIVG NEIFQMRLKG VAPLSAERAI AMSATGGVLR ASGVDYDVRK ADPYGIYDRF
     DFKVPLGTKG DNWDRFMVRM EEMEQSARII EQALDQLPEG PIMAKMPKAI KPPVGEVYHR
     IENAKGEIGF YVVSDGSLKP YRWHARRAAM INLQLLDELC RGFKIGDVVA ILGTLDPVLG
     EVDC