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NUOK1_SINMW
ID   NUOK1_SINMW             Reviewed;         102 AA.
AC   A6U7X5;
DT   15-DEC-2009, integrated into UniProtKB/Swiss-Prot.
DT   21-AUG-2007, sequence version 1.
DT   25-MAY-2022, entry version 74.
DE   RecName: Full=NADH-quinone oxidoreductase subunit K 1 {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 1 {ECO:0000255|HAMAP-Rule:MF_01456};
DE   AltName: Full=NDH-1 subunit K 1 {ECO:0000255|HAMAP-Rule:MF_01456};
GN   Name=nuoK1 {ECO:0000255|HAMAP-Rule:MF_01456}; OrderedLocusNames=Smed_0900;
OS   Sinorhizobium medicae (strain WSM419) (Ensifer medicae).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Rhizobiaceae; Sinorhizobium/Ensifer group; Sinorhizobium.
OX   NCBI_TaxID=366394;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=WSM419;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA   Tice H., Pitluck S., Chain P., Malfatti S., Shin M., Vergez L., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Reeve W.G.,
RA   Richardson P.;
RT   "Complete sequence of Sinorhizobium medicae WSM419 chromosome.";
RL   Submitted (JUN-2007) 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
CC       ubiquinone. 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 14 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 inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01456}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       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; CP000738; ABR59755.1; -; Genomic_DNA.
DR   RefSeq; WP_003531854.1; NC_009636.1.
DR   RefSeq; YP_001326590.1; NC_009636.1.
DR   AlphaFoldDB; A6U7X5; -.
DR   SMR; A6U7X5; -.
DR   STRING; 366394.Smed_0900; -.
DR   EnsemblBacteria; ABR59755; ABR59755; Smed_0900.
DR   GeneID; 48972596; -.
DR   GeneID; 61612264; -.
DR   KEGG; smd:Smed_0900; -.
DR   PATRIC; fig|366394.8.peg.4014; -.
DR   eggNOG; COG0713; Bacteria.
DR   HOGENOM; CLU_144724_2_0_5; -.
DR   OMA; NFVAFSY; -.
DR   OrthoDB; 2081663at2; -.
DR   Proteomes; UP000001108; 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 inner membrane; Cell membrane; Membrane; NAD; Quinone; Translocase;
KW   Transmembrane; Transmembrane helix; Transport; Ubiquinone.
FT   CHAIN           1..102
FT                   /note="NADH-quinone oxidoreductase subunit K 1"
FT                   /id="PRO_0000390243"
FT   TRANSMEM        5..25
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01456"
FT   TRANSMEM        31..51
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01456"
FT   TRANSMEM        65..85
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01456"
SQ   SEQUENCE   102 AA;  11050 MW;  93576A26AB03B013 CRC64;
     MEIGISHYLT VSAILFTLGV FGIFLNRKNV IIILMSVELI LLAVNINMVA FSAFLNDITG
     QVFALFILTV AAAEAAIGLA ILVVFYRNRG SIAVEDVNMM KG
 
 
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