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NDHK_CUCSA
ID   NDHK_CUCSA              Reviewed;         226 AA.
AC   Q4VZH1;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2005, sequence version 1.
DT   03-AUG-2022, entry version 77.
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}; OrderedLocusNames=CsCp042;
OS   Cucumis sativus (Cucumber).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; fabids; Cucurbitales; Cucurbitaceae; Benincaseae; Cucumis.
OX   NCBI_TaxID=3659;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Baekmibaekdadagi;
RX   PubMed=16362300; DOI=10.1007/s00299-005-0097-y;
RA   Kim J.-S., Jung J.D., Lee J.-A., Park H.-W., Oh K.-H., Jeong W.J.,
RA   Choi D.-W., Liu J.R., Cho K.Y.;
RT   "Complete sequence and organization of the cucumber (Cucumis sativus L. cv.
RT   Baekmibaekdadagi) chloroplast genome.";
RL   Plant Cell Rep. 25:334-340(2006).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Borszczagowski;
RX   PubMed=17607527; DOI=10.2478/s11658-007-0029-7;
RA   Plader W.W., Yukawa Y., Sugiura M., Malepszy S.;
RT   "The complete structure of the cucumber (Cucumis sativus L.) chloroplast
RT   genome: its composition and comparative analysis.";
RL   Cell. Mol. Biol. Lett. 12:584-594(2007).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Chipper, and cv. Gy14;
RX   PubMed=17546086; DOI=10.1139/g07-003;
RA   Chung S.-M., Gordon V.S., Staub J.E.;
RT   "Sequencing cucumber (Cucumis sativus L.) chloroplast genomes identifies
RT   differences between chilling-tolerant and -susceptible cucumber lines.";
RL   Genome 50:215-225(2007).
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; DQ119058; AAZ94655.1; -; Genomic_DNA.
DR   EMBL; DQ865975; ABI97421.1; -; Genomic_DNA.
DR   EMBL; AJ970307; CAJ00762.1; -; Genomic_DNA.
DR   RefSeq; YP_247603.1; NC_007144.1.
DR   AlphaFoldDB; Q4VZH1; -.
DR   SMR; Q4VZH1; -.
DR   STRING; 3659.XP_004174131.1; -.
DR   GeneID; 3429263; -.
DR   KEGG; csv:3429263; -.
DR   eggNOG; KOG1687; Eukaryota.
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..226
FT                   /note="NAD(P)H-quinone oxidoreductase subunit K,
FT                   chloroplastic"
FT                   /id="PRO_0000358537"
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   226 AA;  25411 MW;  937B992392BE66C9 CRC64;
     MNSIEFPLLD RTTQTSVIST TSNDLSNWSR LSSLWPLLYG TSCCFIEFAS LIGSRFDFDR
     YGLVPRSSPR QADLILTAGT VTMKMAPSLV RLYEQMPEPK YVIAMGACTI TGGMFSTDSY
     STVRGVDKLI PVDVYLPGCP PKPEAVIDAI TKLRKKISRE IYEDRIKSQE ENRCFTTNHK
     FHVGPSTHTG NYDQELLYQP SSTSEIIPPE TFFKYKSAVS SYELVN
 
 
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