NU6C_ARAHI
ID NU6C_ARAHI Reviewed; 176 AA.
AC A4QK73;
DT 20-JAN-2009, integrated into UniProtKB/Swiss-Prot.
DT 15-MAY-2007, sequence version 1.
DT 25-MAY-2022, entry version 40.
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 Arabis hirsuta (Hairy rock-cress) (Turritis hirsuta).
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC rosids; malvids; Brassicales; Brassicaceae; Arabideae; Arabis.
OX NCBI_TaxID=78191;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA Hosouchi T., Tsuruoka H., Kotani H.;
RT "Sequencing analysis of Arabis hirsuta 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 (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; AP009369; BAF50078.1; -; Genomic_DNA.
DR RefSeq; YP_001123253.1; NC_009268.1.
DR AlphaFoldDB; A4QK73; -.
DR SMR; A4QK73; -.
DR GeneID; 4962538; -.
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_0000360228"
FT TRANSMEM 10..30
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 33..53
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 61..81
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 92..112
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 152..172
FT /note="Helical"
FT /evidence="ECO:0000255"
SQ SEQUENCE 176 AA; 19203 MW; 9DDAE34FFFA5CDA5 CRC64;
MDLPGPIHDF LLVFLGSGLI VGGLGVVLLP NPIFSAFSLG FVLVCISLLY ILANSHFVAA
AQLLIYVGAI NVLIIFAVMF MNDSEYFTDF NLWTVGDGIT SLVCTTLLFS LISTILDTSW
YGVIWTTRLN QILEQDLISN SQQIGSHLST DFFLPFELIS IILLVALIGA ISVARQ
