ID   NU1C_LOTJA              Reviewed;         363 AA.
AC   Q9BBN9;
DT   10-OCT-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2001, sequence version 1.
DT   25-MAY-2022, entry version 73.
DE   RecName: Full=NAD(P)H-quinone oxidoreductase subunit 1, chloroplastic {ECO:0000255|HAMAP-Rule:MF_01350};
DE            EC=7.1.1.- {ECO:0000255|HAMAP-Rule:MF_01350};
DE   AltName: Full=NAD(P)H dehydrogenase subunit 1 {ECO:0000255|HAMAP-Rule:MF_01350};
DE            Short=NDH subunit 1 {ECO:0000255|HAMAP-Rule:MF_01350};
DE   AltName: Full=NADH-plastoquinone oxidoreductase subunit 1 {ECO:0000255|HAMAP-Rule:MF_01350};
GN   Name=ndhA {ECO:0000255|HAMAP-Rule:MF_01350};
OS   Lotus japonicus (Lotus corniculatus var. japonicus).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; fabids; Fabales; Fabaceae; Papilionoideae; 50 kb inversion clade;
OC   NPAAA clade; Hologalegina; robinioid clade; Loteae; Lotus.
OX   NCBI_TaxID=34305;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Miyakojima MG-20;
RX   PubMed=11214967; DOI=10.1093/dnares/7.6.323;
RA   Kato T., Kaneko T., Sato S., Nakamura Y., Tabata S.;
RT   "Complete structure of the chloroplast genome of a legume, Lotus
RT   japonicus.";
RL   DNA Res. 7:323-330(2000).
CC   -!- FUNCTION: NDH shuttles electrons from NAD(P)H:plastoquinone, via FMN
CC       and iron-sulfur (Fe-S) centers, to quinones in the photosynthetic chain
CC       and possibly in a chloroplast respiratory chain. The immediate electron
CC       acceptor for the enzyme in this species is believed to be
CC       plastoquinone. Couples the redox reaction to proton translocation, and
CC       thus conserves the redox energy in a proton gradient.
CC       {ECO:0000255|HAMAP-Rule:MF_01350}.
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_01350};
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_01350};
CC   -!- SUBUNIT: NDH is composed of at least 16 different subunits, 5 of which
CC       are encoded in the nucleus. {ECO:0000255|HAMAP-Rule:MF_01350}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_01350}; Multi-pass membrane protein
CC       {ECO:0000255|HAMAP-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; AP002983; BAB33250.1; -; Genomic_DNA.
DR   RefSeq; NP_084850.1; NC_002694.1.
DR   AlphaFoldDB; Q9BBN9; -.
DR   SMR; Q9BBN9; -.
DR   GeneID; 802841; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
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   GO; GO:0019684; P:photosynthesis, light reaction; IEA:UniProtKB-UniRule.
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   Chloroplast; Membrane; NAD; NADP; Plastid; Plastoquinone; Quinone;
KW   Thylakoid; Translocase; Transmembrane; Transmembrane helix.
FT   CHAIN           1..363
FT                   /note="NAD(P)H-quinone oxidoreductase subunit 1,
FT                   chloroplastic"
FT                   /id="PRO_0000117508"
FT   TRANSMEM        28..48
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        98..118
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        253..273
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        300..320
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT   TRANSMEM        336..356
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
SQ   SEQUENCE   363 AA;  40419 MW;  4B41148D05A1CD25 CRC64;
     MIIDTTEVQD INSFSRLESF KEVYGVLWVL APILIIVLGI TISVLAIVWL EREISAGMQQ
     RIGPEYAGPF GVLQALADGT KLLFKENLIP SRGDIRLFSI GPSISVISIL ITYLVIPFSY
     NFVLSDLNIG VFLWIAISSI APIGLLMSGY GSNNKYSFLG GLRAAAQSIS YEIPLTLCVL
     SISLLSNSLS TVDIVDAQSK YGFWGWNLWR QPMGFVVFLI SSLAECERLP FDLPEAEEEL
     VAGYQTEYSG IKFGLFYVAS YLNLLISSLF VTVLYLGGSN ISIPYISLFE FFEINKEYGV
     FGTTIGIFIT LAKTYLFLFV SIITRWTLPR LRMDQLLNLG WKFLLPISLG NLLLTTSSQL
     FSL