ID   NUOH_AZOPC              Reviewed;         355 AA.
AC   B6YR61;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-JAN-2009, sequence version 1.
DT   25-MAY-2022, entry version 64.
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=CFPG_420;
OS   Azobacteroides pseudotrichonymphae genomovar. CFP2.
OC   Bacteria; Bacteroidetes; Bacteroidia; Bacteroidales;
OC   Candidatus Azobacteroides.
OX   NCBI_TaxID=511995;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=19008447; DOI=10.1126/science.1165578;
RA   Hongoh Y., Sharma V.K., Prakash T., Noda S., Toh H., Taylor T.D., Kudo T.,
RA   Sakaki Y., Toyoda A., Hattori M., Ohkuma M.;
RT   "Genome of an endosymbiont coupling N2 fixation to cellulolysis within RT
RT   protist cells in termite gut.";
RL   Science 322:1108-1109(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
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; AP010656; BAG83683.1; -; Genomic_DNA.
DR   RefSeq; WP_012573444.1; NC_011565.1.
DR   AlphaFoldDB; B6YR61; -.
DR   SMR; B6YR61; -.
DR   STRING; 511995.CFPG_420; -.
DR   EnsemblBacteria; BAG83683; BAG83683; CFPG_420.
DR   KEGG; aps:CFPG_420; -.
DR   eggNOG; COG1005; Bacteria.
DR   HOGENOM; CLU_015134_0_1_10; -.
DR   OMA; MYVGMGI; -.
DR   OrthoDB; 1559067at2; -.
DR   Proteomes; UP000000723; 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..355
FT                   /note="NADH-quinone oxidoreductase subunit H"
FT                   /id="PRO_1000143571"
FT   TRANSMEM        29..49
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        96..116
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        129..149
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        175..195
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        204..224
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        264..284
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        296..316
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        335..355
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
SQ   SEQUENCE   355 AA;  40207 MW;  5FA629E31F61529B CRC64;
     MFHLDFVTNW INKFLQKYLI DGWVLLVEFV LIAFVILIAY AVLALLLIYL ERKVCAFFQC
     RLGPTRVGPW GIFQSVADMI KILLKELIRI NKVDVCLFHL ATYIVIIASI CTFGAIPFDK
     GLHVVDFNIG VFYLLSVSSI GVVGILLAGW ASNNKYTIIG AIRSGAQLIS YELSCGLSLM
     TVVMLSGSLQ LSSIVEQQSC GWNIVRGGIP AIIAFIIYLI AGHAETNRGP FDLPEAESEL
     TAGYHTEYSG IQFGFFYLAE YLNMFIIAAI ATTLFLGGWM PLHIPGWNLF NEVMDFIPSI
     LWFFVKTFIC IFLALWVRWT MPRLRIDQLL NLEWKILMPI SLINIILMAF WIIYL