NDHK_ILLOL
ID NDHK_ILLOL Reviewed; 225 AA.
AC A6MMU8;
DT 16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT 16-DEC-2008, sequence version 2.
DT 03-AUG-2022, entry version 56.
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 Illicium oligandrum (Star anise).
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Austrobaileyales; Schisandraceae; Illicium.
OX NCBI_TaxID=145286;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=17644003; DOI=10.1016/j.ympev.2007.06.004;
RA Hansen D.R., Dastidar S.G., Cai Z., Penaflor C., Kuehl J.V., Boore J.L.,
RA Jansen R.K.;
RT "Phylogenetic and evolutionary implications of complete chloroplast genome
RT sequences of four early-diverging angiosperms: Buxus (Buxaceae),
RT Chloranthus (Chloranthaceae), Dioscorea (Dioscoreaceae), and Illicium
RT (Schisandraceae).";
RL Mol. Phylogenet. Evol. 45:547-563(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}.
CC -!- SEQUENCE CAUTION:
CC Sequence=ABQ52523.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; EF380354; ABQ52523.1; ALT_INIT; Genomic_DNA.
DR RefSeq; YP_001294274.2; NC_009600.1.
DR AlphaFoldDB; A6MMU8; -.
DR SMR; A6MMU8; -.
DR GeneID; 5236807; -.
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_0000358550"
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; 25302 MW; F2805EB7AF2174D3 CRC64;
MNSMRFSLLD RTTQNSVIST TSNDLSNWSR LSSLWPLLYG TSCCFIEFAS LIGSRFDFDR
YGLVPRSSPR QADIILTAGT VTMKMAPSLV RLYEQMPEPK YVIAMGACTI TGGMFSTDSY
STVRGVDKLI PVDVYLPGCP PKPEAIIDAI TKLRKKLSRE IYEDRIGCQQ ENRCFTTNHK
FRVGRSTHTG NYDQGLLYQS PSTSEIPFES FLKYKSSVSS HELVN
