ID   NUOH_CHLCH              Reviewed;         372 AA.
AC   Q3ASW4;
DT   13-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   25-MAY-2022, entry version 91.
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=Cag_0638;
OS   Chlorobium chlorochromatii (strain CaD3).
OC   Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae;
OC   Chlorobium/Pelodictyon group; Chlorobium.
OX   NCBI_TaxID=340177;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CaD3;
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., Bryant D., Schmutz J., Larimer F.,
RA   Land M., Kyrpides N., Ivanova N., Richardson P.;
RT   "Complete sequence of Chlorobium chlorochromatii CaD3.";
RL   Submitted (AUG-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. 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; CP000108; ABB27911.1; -; Genomic_DNA.
DR   RefSeq; WP_011361683.1; NC_007514.1.
DR   AlphaFoldDB; Q3ASW4; -.
DR   SMR; Q3ASW4; -.
DR   STRING; 340177.Cag_0638; -.
DR   EnsemblBacteria; ABB27911; ABB27911; Cag_0638.
DR   KEGG; cch:Cag_0638; -.
DR   eggNOG; COG1005; Bacteria.
DR   HOGENOM; CLU_015134_0_1_10; -.
DR   OMA; MYVGMGI; -.
DR   OrthoDB; 1559067at2; -.
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; Translocase;
KW   Transmembrane; Transmembrane helix; Ubiquinone.
FT   CHAIN           1..372
FT                   /note="NADH-quinone oxidoreductase subunit H"
FT                   /id="PRO_0000240064"
FT   TRANSMEM        34..54
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        106..126
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        139..159
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        178..198
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        217..237
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        278..298
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        313..333
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        352..372
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
SQ   SEQUENCE   372 AA;  41048 MW;  670781A69BF5B96A CRC64;
     MTVTALSQLS LPLFMGTTLN AWSDALAGFT PWGLPVGLLI IAAIPLVFIA LYALTYGVYG
     ERKISAFMQD RLGPMEVGKW GILQTLADIL KLLQKEDIVP LSADKFLFVI GPGVLFVGSF
     LAFAVLPFSP AFIGASLNVG LFYAVGIVAL EVVGILAAGW GSNNKWSLYG AVRSVAQIVS
     YEIPASIALL CGAMMAGTLD MQKITILQSG ELGFAHFYLF QNPIAWLPFL IYFIASLAET
     NRAPFDIPEA ESELVAGYFT EYSGMKFAVI FLAEYGRMFM VSAIISIVFL GGWNSPLPNI
     GAFELNTWTS GAVWGAFWII MKGFFFIFVQ MWLRWTLPRL RVDQLMYLCW KVLTPFAFVS
     FVLTALWEIY VP