ID   NUOH2_RHOP5             Reviewed;         341 AA.
AC   Q07NL6;
DT   11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT   31-OCT-2006, sequence version 1.
DT   25-MAY-2022, entry version 80.
DE   RecName: Full=NADH-quinone oxidoreductase subunit H 2 {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 2 {ECO:0000255|HAMAP-Rule:MF_01350};
DE   AltName: Full=NDH-1 subunit H 2 {ECO:0000255|HAMAP-Rule:MF_01350};
GN   Name=nuoH2 {ECO:0000255|HAMAP-Rule:MF_01350}; OrderedLocusNames=RPE_2530;
OS   Rhodopseudomonas palustris (strain BisA53).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Bradyrhizobiaceae; Rhodopseudomonas.
OX   NCBI_TaxID=316055;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=BisA53;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Chain P., Malfatti S., Shin M., Vergez L., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Pelletier D.A., Kyrpides N., Kim E., Harwood C.S., Oda Y.,
RA   Richardson P.;
RT   "Complete sequence of Rhodopseudomonas palustris BisA53.";
RL   Submitted (SEP-2006) 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; CP000463; ABJ06468.1; -; Genomic_DNA.
DR   RefSeq; WP_011663946.1; NC_008435.1.
DR   AlphaFoldDB; Q07NL6; -.
DR   SMR; Q07NL6; -.
DR   STRING; 316055.RPE_2530; -.
DR   EnsemblBacteria; ABJ06468; ABJ06468; RPE_2530.
DR   KEGG; rpe:RPE_2530; -.
DR   eggNOG; COG1005; Bacteria.
DR   HOGENOM; CLU_015134_0_1_5; -.
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; 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..341
FT                   /note="NADH-quinone oxidoreductase subunit H 2"
FT                   /id="PRO_0000299948"
FT   TRANSMEM        13..33
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        82..102
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        115..135
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        161..181
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        190..210
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        242..262
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        277..297
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        317..337
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
SQ   SEQUENCE   341 AA;  37475 MW;  BFDB38BFF3588FA1 CRC64;
     MADLWTNYLL PLLIVIGQSF LLLTVLLITI AYILLADRKI WAAVQIRRGP NVVGPWGLLQ
     SFADLLKMVL KEPTIPSGAN KGVFLLAPLV SCVLALAAWA VIPVDAGWMI ADINVGVLYI
     LAVSSLSVYG IIMAGWSSNS KYPFLAALRS AAQMVSYEVS IGFVIVCVLL CAGSLNLTAI
     VEAQNSQYGL LGWYWLPLFP VFVIFYVSAL AETNRPPFDL VEAESELVAG FMVEYASTPY
     MLFVLGEYVA IATMCAMGAI MFLGGWLPPL PIAPFTWVPG VIWFTLKLFF MFFMFAMAKA
     IVPRYRYDQL MRLGWKVFLP LSLAMVVIVA SVLQFAGLAP K