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NDHK_CRUWA
ID   NDHK_CRUWA              Reviewed;         225 AA.
AC   A4QKT5;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   15-MAY-2007, sequence version 1.
DT   03-AUG-2022, entry version 59.
DE   RecName: Full=NAD(P)H-quinone oxidoreductase subunit K, chloroplastic {ECO:0000255|HAMAP-Rule:MF_01356};
DE            EC=7.1.1.- {ECO:0000255|HAMAP-Rule:MF_01356};
DE   AltName: Full=NAD(P)H dehydrogenase subunit K {ECO:0000255|HAMAP-Rule:MF_01356};
DE   AltName: Full=NADH-plastoquinone oxidoreductase subunit K {ECO:0000255|HAMAP-Rule:MF_01356};
GN   Name=ndhK {ECO:0000255|HAMAP-Rule:MF_01356};
OS   Crucihimalaya wallichii (Rock-cress) (Arabidopsis campestris).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; malvids; Brassicales; Brassicaceae; Crucihimalayeae; Crucihimalaya.
OX   NCBI_TaxID=78192;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA   Hosouchi T., Tsuruoka H., Kotani H.;
RT   "Sequencing analysis of Crucihimalaya wallichii chloroplast DNA.";
RL   Submitted (MAR-2007) to the EMBL/GenBank/DDBJ databases.
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_01356}.
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_01356};
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_01356};
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01356};
CC       Note=Binds 1 [4Fe-4S] cluster. {ECO:0000255|HAMAP-Rule:MF_01356};
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_01356}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_01356}; Peripheral membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_01356}; Stromal side {ECO:0000255|HAMAP-
CC       Rule:MF_01356}.
CC   -!- SIMILARITY: Belongs to the complex I 20 kDa subunit family.
CC       {ECO:0000255|HAMAP-Rule:MF_01356}.
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DR   EMBL; AP009372; BAF50290.1; -; Genomic_DNA.
DR   RefSeq; YP_001123466.1; NC_009271.1.
DR   AlphaFoldDB; A4QKT5; -.
DR   SMR; A4QKT5; -.
DR   GeneID; 4962675; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR   GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:InterPro.
DR   GO; GO:0048038; F:quinone binding; IEA:UniProtKB-KW.
DR   GO; GO:0019684; P:photosynthesis, light reaction; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_01356; NDH1_NuoB; 1.
DR   InterPro; IPR006137; NADH_UbQ_OxRdtase-like_20kDa.
DR   InterPro; IPR006138; NADH_UQ_OxRdtase_20Kd_su.
DR   Pfam; PF01058; Oxidored_q6; 1.
DR   TIGRFAMs; TIGR01957; nuoB_fam; 1.
DR   PROSITE; PS01150; COMPLEX1_20K; 1.
PE   3: Inferred from homology;
KW   4Fe-4S; Chloroplast; Iron; Iron-sulfur; Membrane; Metal-binding; NAD; NADP;
KW   Plastid; Plastoquinone; Quinone; Thylakoid; Translocase; Transport.
FT   CHAIN           1..225
FT                   /note="NAD(P)H-quinone oxidoreductase subunit K,
FT                   chloroplastic"
FT                   /id="PRO_0000358535"
FT   BINDING         43
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT   BINDING         44
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT   BINDING         108
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT   BINDING         139
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
SQ   SEQUENCE   225 AA;  25313 MW;  97EEBF26916F28FE CRC64;
     MNSIKFPVLD RTTKNSVIST TLNDLSNWSE LSSLWPLLYG TSCCFIEFAS LIGSRFDFDR
     YGLVPRSSPR QADLILTAGT VTMKMAPSLV RLYEQMPEPK YVIAMGACTI TGGMFSTDSY
     STVRGVDKLI PVDVYLPGCP PKPEAVIDAI TKLRKKIARE IYKDRIRPQQ GNRCFTTNHK
     FFVVRSPHTG NYDQELLYPP SSTSEISTET FFKYKSPVSS HELVN
 
 
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