NDHK_BARVE
ID NDHK_BARVE Reviewed; 225 AA.
AC A4QKA9;
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 Barbarea verna (Early yellowrocket) (Erysimum vernum).
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC rosids; malvids; Brassicales; Brassicaceae; Cardamineae; Barbarea.
OX NCBI_TaxID=50458;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA Hosouchi T., Tsuruoka H., Kotani H.;
RT "Sequencing analysis of Barbarea verna 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; AP009370; BAF50114.1; -; Genomic_DNA.
DR RefSeq; YP_001123290.1; NC_009269.1.
DR AlphaFoldDB; A4QKA9; -.
DR SMR; A4QKA9; -.
DR GeneID; 4961854; -.
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_0000358522"
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; 25220 MW; 3B35BEA311D2A17A CRC64;
MNSIKFPVLD RTTKNSVIST TLNDLSNWSR LSSLWPLLYG TSCCFIEFAS LIGSRFDFDR
YGLVPRSSPR QADLILTAGT VTMKMAPSLV RLYEQMPEPK YVIAMGACTI TGGMFSTDSY
STVRGVDKLI PVDVYLPGCP PKPEAVIDAI TKLRKKIARE IYKDRIRPQR GNRCFTTNHK
FFVVGSPHTG NYDQELLYAP SSTSEISTET FFKYKSPVSS NELVN
