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NDHK1_ACAM1
ID   NDHK1_ACAM1             Reviewed;         232 AA.
AC   B0C6I1;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   26-FEB-2008, sequence version 1.
DT   03-AUG-2022, entry version 80.
DE   RecName: Full=NAD(P)H-quinone oxidoreductase subunit K 1 {ECO:0000255|HAMAP-Rule:MF_01356};
DE            EC=7.1.1.- {ECO:0000255|HAMAP-Rule:MF_01356};
DE   AltName: Full=NAD(P)H dehydrogenase I subunit K 1 {ECO:0000255|HAMAP-Rule:MF_01356};
DE   AltName: Full=NDH-1 subunit K 1 {ECO:0000255|HAMAP-Rule:MF_01356};
DE            Short=NDH-K 1 {ECO:0000255|HAMAP-Rule:MF_01356};
GN   Name=ndhK1 {ECO:0000255|HAMAP-Rule:MF_01356}; OrderedLocusNames=AM1_1371;
OS   Acaryochloris marina (strain MBIC 11017).
OC   Bacteria; Cyanobacteria; Synechococcales; Acaryochloridaceae;
OC   Acaryochloris.
OX   NCBI_TaxID=329726;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MBIC 11017;
RX   PubMed=18252824; DOI=10.1073/pnas.0709772105;
RA   Swingley W.D., Chen M., Cheung P.C., Conrad A.L., Dejesa L.C., Hao J.,
RA   Honchak B.M., Karbach L.E., Kurdoglu A., Lahiri S., Mastrian S.D.,
RA   Miyashita H., Page L., Ramakrishna P., Satoh S., Sattley W.M., Shimada Y.,
RA   Taylor H.L., Tomo T., Tsuchiya T., Wang Z.T., Raymond J., Mimuro M.,
RA   Blankenship R.E., Touchman J.W.;
RT   "Niche adaptation and genome expansion in the chlorophyll d-producing
RT   cyanobacterium Acaryochloris marina.";
RL   Proc. Natl. Acad. Sci. U.S.A. 105:2005-2010(2008).
CC   -!- FUNCTION: NDH-1 shuttles electrons from an unknown electron donor, via
CC       FMN and iron-sulfur (Fe-S) centers, to quinones in the respiratory
CC       and/or the photosynthetic chain. The immediate electron acceptor for
CC       the enzyme in this species is believed to be plastoquinone. Couples the
CC       redox reaction to proton translocation, and thus conserves the redox
CC       energy in a proton gradient. Cyanobacterial NDH-1 also plays a role in
CC       inorganic carbon-concentration. {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-1 can be composed of about 15 different subunits;
CC       different subcomplexes with different compositions have been identified
CC       which probably have different functions. {ECO:0000255|HAMAP-
CC       Rule:MF_01356}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01356}; Peripheral membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01356}; Cytoplasmic side {ECO:0000255|HAMAP-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; CP000828; ABW26402.1; -; Genomic_DNA.
DR   RefSeq; WP_010476380.1; NC_009925.1.
DR   AlphaFoldDB; B0C6I1; -.
DR   SMR; B0C6I1; -.
DR   STRING; 329726.AM1_1371; -.
DR   EnsemblBacteria; ABW26402; ABW26402; AM1_1371.
DR   KEGG; amr:AM1_1371; -.
DR   eggNOG; COG0377; Bacteria.
DR   HOGENOM; CLU_055737_2_1_3; -.
DR   OMA; TMKMAPQ; -.
DR   OrthoDB; 1904620at2; -.
DR   Proteomes; UP000000268; Chromosome.
DR   GO; GO:0031676; C:plasma membrane-derived 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; Iron; Iron-sulfur; Membrane; Metal-binding; NAD; NADP;
KW   Plastoquinone; Quinone; Reference proteome; Thylakoid; Translocase;
KW   Transport.
FT   CHAIN           1..232
FT                   /note="NAD(P)H-quinone oxidoreductase subunit K 1"
FT                   /id="PRO_0000358334"
FT   BINDING         49
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT   BINDING         50
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT   BINDING         114
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT   BINDING         145
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
SQ   SEQUENCE   232 AA;  25379 MW;  65D569BC9E121C9A CRC64;
     MQDQQIINPI SQSQIPQELS ENVILSSVSD LYDWARLSSL WPLMYGTACC FIEIAAMIGS
     RFDFDRFGLV PRSSPRQADL IITAGTVTMK MAPALVRLYE QMPDPKYVIA MGACTITGGM
     FSSDSTTAVR GVDKLIPVDV YLPGCPPRPE AVMDAIVKLR KKIANEDVRE RGNLMQTHRY
     YSTTHQMKVV PPIHTGVYLE AAARKSPAAA LGAGVGEDMT PALVAEAEKE EA
 
 
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