ID   NU6C_CARPA              Reviewed;         176 AA.
AC   B1A987;
DT   20-JAN-2009, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   25-MAY-2022, entry version 38.
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   Carica papaya (Papaya).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; malvids; Brassicales; Caricaceae; Carica.
OX   NCBI_TaxID=3649;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. SunUp;
RX   PubMed=18432245; DOI=10.1038/nature06856;
RA   Ming R., Hou S., Feng Y., Yu Q., Dionne-Laporte A., Saw J.H., Senin P.,
RA   Wang W., Ly B.V., Lewis K.L., Salzberg S.L., Feng L., Jones M.R.,
RA   Skelton R.L., Murray J.E., Chen C., Qian W., Shen J., Du P., Eustice M.,
RA   Tong E., Tang H., Lyons E., Paull R.E., Michael T.P., Wall K., Rice D.W.,
RA   Albert H., Wang M.L., Zhu Y.J., Schatz M., Nagarajan N., Acob R.A.,
RA   Guan P., Blas A., Wai C.M., Ackerman C.M., Ren Y., Liu C., Wang J.,
RA   Wang J., Na J.K., Shakirov E.V., Haas B., Thimmapuram J., Nelson D.,
RA   Wang X., Bowers J.E., Gschwend A.R., Delcher A.L., Singh R., Suzuki J.Y.,
RA   Tripathi S., Neupane K., Wei H., Irikura B., Paidi M., Jiang N., Zhang W.,
RA   Presting G., Windsor A., Navajas-Perez R., Torres M.J., Feltus F.A.,
RA   Porter B., Li Y., Burroughs A.M., Luo M.C., Liu L., Christopher D.A.,
RA   Mount S.M., Moore P.H., Sugimura T., Jiang J., Schuler M.A., Friedman V.,
RA   Mitchell-Olds T., Shippen D.E., dePamphilis C.W., Palmer J.D., Freeling M.,
RA   Paterson A.H., Gonsalves D., Wang L., Alam M.;
RT   "The draft genome of the transgenic tropical fruit tree papaya (Carica
RT   papaya Linnaeus).";
RL   Nature 452:991-996(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; EU431223; ABY86834.1; -; Genomic_DNA.
DR   RefSeq; YP_001671735.1; NC_010323.1.
DR   AlphaFoldDB; B1A987; -.
DR   SMR; B1A987; -.
DR   GeneID; 5878368; -.
DR   KEGG; cpap:5878368; -.
DR   OrthoDB; 1388741at2759; -.
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_0000360235"
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        92..112
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        152..172
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   176 AA;  19315 MW;  59EB229BC1FA8828 CRC64;
     MDLLGPIHDF LLVFLGSGLI LGGLGVVLFP NPIYSAFSLG FVLACISLFY ILSNSHFVAA
     AQLLIYVGAI NVLIIFAVMF MNGSEYYRDF NLWTIGDGIT SLVCTSIFLS LITTILDTSW
     YGVIWTTRLN QILEQDLISS SQQIGIHLST DFFLPFELIS IILLVALIGA IAVARQ