NU6C_TRACE
ID NU6C_TRACE Reviewed; 176 AA.
AC A9QC80;
DT 20-JAN-2009, integrated into UniProtKB/Swiss-Prot.
DT 05-FEB-2008, sequence version 1.
DT 25-MAY-2022, entry version 36.
DE RecName: Full=NAD(P)H-quinone oxidoreductase subunit 6, chloroplastic;
DE EC=7.1.1.-;
DE AltName: Full=NAD(P)H dehydrogenase subunit 6;
DE AltName: Full=NADH-plastoquinone oxidoreductase subunit 6;
GN Name=ndhG;
OS Trachelium caeruleum (Blue throatwort).
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC asterids; campanulids; Asterales; Campanulaceae; Trachelium.
OX NCBI_TaxID=28494;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=18048330; DOI=10.1073/pnas.0709121104;
RA Jansen R.K., Cai Z., Raubeson L.A., Daniell H., dePamphilis C.W.,
RA Leebens-Mack J., Muller K.F., Guisinger-Bellian M., Haberle R.C.,
RA Hansen A.K., Chumley T.W., Lee S.B., Peery R., McNeal J.R., Kuehl J.V.,
RA Boore J.L.;
RT "Analysis of 81 genes from 64 plastid genomes resolves relationships in
RT angiosperms and identifies genome-scale evolutionary patterns.";
RL Proc. Natl. Acad. Sci. U.S.A. 104:19369-19374(2007).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=18330485; DOI=10.1007/s00239-008-9086-4;
RA Haberle R.C., Fourcade H.M., Boore J.L., Jansen R.K.;
RT "Extensive rearrangements in the chloroplast genome of Trachelium caeruleum
RT are associated with repeats and tRNA genes.";
RL J. Mol. Evol. 66:350-361(2008).
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 (By similarity).
CC {ECO:0000250}.
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 -!- 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 -!- SUBUNIT: NDH is composed of at least 16 different subunits, 5 of which
CC are encoded in the nucleus. {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC {ECO:0000250}; Multi-pass membrane protein {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the complex I subunit 6 family. {ECO:0000305}.
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DR EMBL; EU017266; ABU85673.1; -; Genomic_DNA.
DR EMBL; EU090187; ABV26530.1; -; Genomic_DNA.
DR EMBL; EU090187; ABV26537.1; -; Genomic_DNA.
DR RefSeq; YP_001718705.1; NC_010442.1.
DR RefSeq; YP_001718712.1; NC_010442.1.
DR AlphaFoldDB; A9QC80; -.
DR SMR; A9QC80; -.
DR GeneID; 6155906; -.
DR GeneID; 6155922; -.
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:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:InterPro.
DR GO; GO:0048038; F:quinone binding; IEA:UniProtKB-KW.
DR Gene3D; 1.20.120.1200; -; 1.
DR InterPro; IPR001457; NADH_UbQ/plastoQ_OxRdtase_su6.
DR InterPro; IPR042106; Nuo/plastoQ_OxRdtase_6_NuoJ.
DR Pfam; PF00499; Oxidored_q3; 1.
PE 3: Inferred from homology;
KW Chloroplast; Membrane; NAD; NADP; Plastid; Plastoquinone; Quinone;
KW Thylakoid; Translocase; Transmembrane; Transmembrane helix; Transport.
FT CHAIN 1..176
FT /note="NAD(P)H-quinone oxidoreductase subunit 6,
FT chloroplastic"
FT /id="PRO_0000360294"
FT TRANSMEM 10..30
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 32..52
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 61..81
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 95..115
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 152..172
FT /note="Helical"
FT /evidence="ECO:0000255"
SQ SEQUENCE 176 AA; 19106 MW; 698C48C0EBF9F923 CRC64;
MDLPGPIHDF ILVFLGLVLI LGGLAVVLLP NPIYSAFSLG LVLVCISLLY ILSNSHFLAA
AQLLIYVGAI NVLIIFAVMF LNGSEYYKDL NPWTVGDGVT SVVCTSLFAS LITTIPDTSW
YGIIWTTKSN QIIEQDLINN SQEIGIHLST DFLIPFELIS IILLVALIGA IAVARQ
