ID   NUOK_DEIGD              Reviewed;         100 AA.
AC   Q1IZW3;
DT   15-DEC-2009, integrated into UniProtKB/Swiss-Prot.
DT   13-JUN-2006, sequence version 1.
DT   25-MAY-2022, entry version 80.
DE   RecName: Full=NADH-quinone oxidoreductase subunit K {ECO:0000255|HAMAP-Rule:MF_01456};
DE            EC=7.1.1.- {ECO:0000255|HAMAP-Rule:MF_01456};
DE   AltName: Full=NADH dehydrogenase I subunit K {ECO:0000255|HAMAP-Rule:MF_01456};
DE   AltName: Full=NDH-1 subunit K {ECO:0000255|HAMAP-Rule:MF_01456};
GN   Name=nuoK {ECO:0000255|HAMAP-Rule:MF_01456}; OrderedLocusNames=Dgeo_0919;
OS   Deinococcus geothermalis (strain DSM 11300 / AG-3a).
OC   Bacteria; Deinococcus-Thermus; Deinococci; Deinococcales; Deinococcaceae;
OC   Deinococcus.
OX   NCBI_TaxID=319795;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 11300 / AG-3a;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Brettin T., Bruce D., Han C., Tapia R., Saunders E., Gilna P., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Kim E., Daly M.J.,
RA   Fredrickson J.K., Makarova K.S., Gaidamakova E.K., Zhai M., Richardson P.;
RT   "Complete sequence of chromosome 1 of Deinococcus geothermalis DSM 11300.";
RL   Submitted (APR-2006) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: NDH-1 shuttles electrons from NADH, via FMN and iron-sulfur
CC       (Fe-S) centers, to quinones in the respiratory chain. The immediate
CC       electron acceptor for the enzyme in this species is believed to be a
CC       menaquinone. Couples the redox reaction to proton translocation (for
CC       every two electrons transferred, four hydrogen ions are translocated
CC       across the cytoplasmic membrane), and thus conserves the redox energy
CC       in a proton gradient. {ECO:0000255|HAMAP-Rule:MF_01456}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a quinone + 5 H(+)(in) + NADH = a quinol + 4 H(+)(out) +
CC         NAD(+); Xref=Rhea:RHEA:57888, ChEBI:CHEBI:15378, ChEBI:CHEBI:24646,
CC         ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:132124;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01456};
CC   -!- SUBUNIT: NDH-1 is composed of 15 different subunits. Subunits NuoA, H,
CC       J, K, L, M, N constitute the membrane sector of the complex.
CC       {ECO:0000255|HAMAP-Rule:MF_01456}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_01456};
CC       Multi-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_01456}.
CC   -!- SIMILARITY: Belongs to the complex I subunit 4L family.
CC       {ECO:0000255|HAMAP-Rule:MF_01456}.
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DR   EMBL; CP000359; ABF45221.1; -; Genomic_DNA.
DR   RefSeq; WP_011530059.1; NC_008025.1.
DR   AlphaFoldDB; Q1IZW3; -.
DR   SMR; Q1IZW3; -.
DR   STRING; 319795.Dgeo_0919; -.
DR   EnsemblBacteria; ABF45221; ABF45221; Dgeo_0919.
DR   KEGG; dge:Dgeo_0919; -.
DR   eggNOG; COG0713; Bacteria.
DR   HOGENOM; CLU_144724_0_0_0; -.
DR   OMA; NFVAFSY; -.
DR   OrthoDB; 2081663at2; -.
DR   Proteomes; UP000002431; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0050136; F:NADH dehydrogenase (quinone) activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0048038; F:quinone binding; IEA:UniProtKB-KW.
DR   GO; GO:0042773; P:ATP synthesis coupled electron transport; IEA:InterPro.
DR   HAMAP; MF_01456; NDH1_NuoK; 1.
DR   InterPro; IPR001133; NADH_UbQ_OxRdtase_chain4L/K.
DR   InterPro; IPR039428; NUOK/Mnh_C1-like.
DR   PANTHER; PTHR11434; PTHR11434; 1.
DR   Pfam; PF00420; Oxidored_q2; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Membrane; NAD; Quinone; Reference proteome; Translocase;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..100
FT                   /note="NADH-quinone oxidoreductase subunit K"
FT                   /id="PRO_0000390027"
FT   TRANSMEM        3..23
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01456"
FT   TRANSMEM        29..49
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01456"
FT   TRANSMEM        63..83
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01456"
SQ   SEQUENCE   100 AA;  10603 MW;  2DB75C8954F46E98 CRC64;
     MAPTAYYVAL SGLLFAIGMI GVLTRRTAIM IFLSVELMLN AANLALVAFA RAWGDLTAQT
     AVFIVMTLAA AEVAIGLAII VAIFRKRETT NVDDLATLKG