ID   NDHO_NOSP7              Reviewed;          71 AA.
AC   B2J5F9;
DT   04-NOV-2008, integrated into UniProtKB/Swiss-Prot.
DT   10-JUN-2008, sequence version 1.
DT   25-MAY-2022, entry version 64.
DE   RecName: Full=NAD(P)H-quinone oxidoreductase subunit O {ECO:0000255|HAMAP-Rule:MF_01354};
DE            EC=7.1.1.- {ECO:0000255|HAMAP-Rule:MF_01354};
DE   AltName: Full=NAD(P)H dehydrogenase I subunit O {ECO:0000255|HAMAP-Rule:MF_01354};
DE   AltName: Full=NDH-1 subunit O;
DE   AltName: Full=NDH-O;
GN   Name=ndhO {ECO:0000255|HAMAP-Rule:MF_01354}; OrderedLocusNames=Npun_R3935;
OS   Nostoc punctiforme (strain ATCC 29133 / PCC 73102).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Nostoc.
OX   NCBI_TaxID=63737;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29133 / PCC 73102;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Pitluck S., Chain P., Malfatti S., Shin M., Vergez L., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Kim E., Meeks J.C., Elhai J.,
RA   Campbell E.L., Thiel T., Longmire J., Potts M., Atlas R.;
RT   "Complete sequence of chromosome of Nostoc punctiforme ATCC 29133.";
RL   Submitted (APR-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: NDH-1 shuttles electrons from an unknown electron donor, via
CC       FMN and iron-sulfur (Fe-S) centers, to quinones in the respiratory
CC       and/or the photosynthetic chain. The immediate electron acceptor for
CC       the enzyme in this species is believed to be plastoquinone. Couples the
CC       redox reaction to proton translocation, and thus conserves the redox
CC       energy in a proton gradient. Cyanobacterial NDH-1 also plays a role in
CC       inorganic carbon-concentration. {ECO:0000255|HAMAP-Rule:MF_01354}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a plastoquinone + (n+1) H(+)(in) + NADH = a plastoquinol + n
CC         H(+)(out) + NAD(+); Xref=Rhea:RHEA:42608, Rhea:RHEA-COMP:9561,
CC         Rhea:RHEA-COMP:9562, ChEBI:CHEBI:15378, ChEBI:CHEBI:17757,
CC         ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:62192;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01354};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a plastoquinone + (n+1) H(+)(in) + NADPH = a plastoquinol + n
CC         H(+)(out) + NADP(+); Xref=Rhea:RHEA:42612, Rhea:RHEA-COMP:9561,
CC         Rhea:RHEA-COMP:9562, ChEBI:CHEBI:15378, ChEBI:CHEBI:17757,
CC         ChEBI:CHEBI:57783, ChEBI:CHEBI:58349, ChEBI:CHEBI:62192;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01354};
CC   -!- SUBUNIT: NDH-1 can be composed of about 15 different subunits;
CC       different subcomplexes with different compositions have been identified
CC       which probably have different functions. {ECO:0000255|HAMAP-
CC       Rule:MF_01354}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01354}; Peripheral membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01354}; Cytoplasmic side {ECO:0000255|HAMAP-Rule:MF_01354}.
CC   -!- SIMILARITY: Belongs to the complex I NdhO subunit family.
CC       {ECO:0000255|HAMAP-Rule:MF_01354}.
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DR   EMBL; CP001037; ACC82316.1; -; Genomic_DNA.
DR   RefSeq; WP_012410284.1; NC_010628.1.
DR   AlphaFoldDB; B2J5F9; -.
DR   SMR; B2J5F9; -.
DR   STRING; 63737.Npun_R3935; -.
DR   EnsemblBacteria; ACC82316; ACC82316; Npun_R3935.
DR   KEGG; npu:Npun_R3935; -.
DR   eggNOG; ENOG5032XZT; Bacteria.
DR   HOGENOM; CLU_195299_0_0_3; -.
DR   OMA; TPNIWLR; -.
DR   OrthoDB; 1907204at2; -.
DR   PhylomeDB; B2J5F9; -.
DR   Proteomes; UP000001191; Chromosome.
DR   GO; GO:0031676; C:plasma membrane-derived thylakoid 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_01354; NDH1_NDH1O; 1.
DR   InterPro; IPR020905; NdhO.
DR   Pfam; PF11910; NdhO; 1.
PE   3: Inferred from homology;
KW   Membrane; NAD; NADP; Plastoquinone; Quinone; Reference proteome; Thylakoid;
KW   Translocase; Transport.
FT   CHAIN           1..71
FT                   /note="NAD(P)H-quinone oxidoreductase subunit O"
FT                   /id="PRO_0000353637"
SQ   SEQUENCE   71 AA;  8143 MW;  AF6F4AFB32128B7A CRC64;
     MAVKKGDMVR AIREKLENSL EAKASDTRFP PYLFDSKGEI VDIKGDYALI KFGKVPTPNV
     WLRVDQLEEF K