ID   NUOK_MYCGI              Reviewed;          99 AA.
AC   A4TDA1;
DT   15-DEC-2009, integrated into UniProtKB/Swiss-Prot.
DT   15-MAY-2007, sequence version 1.
DT   25-MAY-2022, entry version 77.
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=Mflv_4491;
OS   Mycolicibacterium gilvum (strain PYR-GCK) (Mycobacterium gilvum (strain
OS   PYR-GCK)).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycolicibacterium.
OX   NCBI_TaxID=350054;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PYR-GCK;
RG   US DOE Joint Genome Institute;
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   Chain P., Malfatti S., Shin M., Vergez L., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Mikhailova N., Miller C., Richardson P.;
RT   "Complete sequence of chromosome of Mycobacterium gilvum PYR-GCK.";
RL   Submitted (APR-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 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 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 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; CP000656; ABP46960.1; -; Genomic_DNA.
DR   RefSeq; WP_011895334.1; NC_009338.1.
DR   AlphaFoldDB; A4TDA1; -.
DR   SMR; A4TDA1; -.
DR   STRING; 350054.Mflv_4491; -.
DR   EnsemblBacteria; ABP46960; ABP46960; Mflv_4491.
DR   KEGG; mgi:Mflv_4491; -.
DR   eggNOG; COG0713; Bacteria.
DR   HOGENOM; CLU_144724_0_0_11; -.
DR   OMA; NFVAFSY; -.
DR   OrthoDB; 2081663at2; -.
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; Translocase; Transmembrane;
KW   Transmembrane helix; Transport.
FT   CHAIN           1..99
FT                   /note="NADH-quinone oxidoreductase subunit K"
FT                   /id="PRO_0000390128"
FT   TRANSMEM        3..23
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01456"
FT   TRANSMEM        28..48
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01456"
FT   TRANSMEM        59..79
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01456"
SQ   SEQUENCE   99 AA;  10807 MW;  42BB0A22BF479D05 CRC64;
     MNPDNYLYLS ALLFTIGAAG VLLRRNAIVM FMCVELMLNA GNLAFVTFAR VHGNLDGQVV
     AFFTMVVAAC EVVIGLAIIM TIFRTRRSAN VDAASLLRH