ID   NU6M_LEMCA              Reviewed;         171 AA.
AC   Q8LX23;
DT   29-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   25-MAY-2022, entry version 65.
DE   RecName: Full=NADH-ubiquinone oxidoreductase chain 6;
DE            EC=7.1.1.2 {ECO:0000250|UniProtKB:P03923};
DE   AltName: Full=NADH dehydrogenase subunit 6;
GN   Name=MT-ND6; Synonyms=MTND6, NADH6, ND6;
OS   Lemur catta (Ring-tailed lemur).
OG   Mitochondrion.
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Primates; Strepsirrhini; Lemuriformes;
OC   Lemuridae; Lemur.
OX   NCBI_TaxID=9447;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=12034869; DOI=10.1073/pnas.102164299;
RA   Arnason U., Adegoke J.A., Bodin K., Born E.W., Esa Y.B., Gullberg A.,
RA   Nilsson M., Short R.V., Xu X., Janke A.;
RT   "Mammalian mitogenomic relationships and the root of the eutherian tree.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:8151-8156(2002).
CC   -!- FUNCTION: Core subunit of the mitochondrial membrane respiratory chain
CC       NADH dehydrogenase (Complex I) which catalyzes electron transfer from
CC       NADH through the respiratory chain, using ubiquinone as an electron
CC       acceptor. Essential for the catalytic activity and assembly of complex
CC       I. {ECO:0000250|UniProtKB:P03923}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a ubiquinone + 5 H(+)(in) + NADH = a ubiquinol + 4 H(+)(out) +
CC         NAD(+); Xref=Rhea:RHEA:29091, Rhea:RHEA-COMP:9565, Rhea:RHEA-
CC         COMP:9566, ChEBI:CHEBI:15378, ChEBI:CHEBI:16389, ChEBI:CHEBI:17976,
CC         ChEBI:CHEBI:57540, ChEBI:CHEBI:57945; EC=7.1.1.2;
CC         Evidence={ECO:0000250|UniProtKB:P03923};
CC   -!- SUBUNIT: Core subunit of respiratory chain NADH dehydrogenase (Complex
CC       I) which is composed of 45 different subunits.
CC       {ECO:0000250|UniProtKB:P03924}.
CC   -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane
CC       {ECO:0000250|UniProtKB:P03924}; Multi-pass membrane protein
CC       {ECO:0000255}.
CC   -!- SIMILARITY: Belongs to the complex I subunit 6 family. {ECO:0000305}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; AJ421451; CAD13432.1; -; Genomic_DNA.
DR   RefSeq; NP_659299.1; NC_004025.1.
DR   AlphaFoldDB; Q8LX23; -.
DR   SMR; Q8LX23; -.
DR   GeneID; 804964; -.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005743; C:mitochondrial inner membrane; ISS:UniProtKB.
DR   GO; GO:0070469; C:respirasome; IEA:UniProtKB-KW.
DR   GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; ISS:UniProtKB.
DR   GO; GO:0006120; P:mitochondrial electron transport, NADH to ubiquinone; ISS:UniProtKB.
DR   GO; GO:0032981; P:mitochondrial respiratory chain complex I assembly; ISS:UniProtKB.
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   Electron transport; Membrane; Mitochondrion; Mitochondrion inner membrane;
KW   NAD; Respiratory chain; Translocase; Transmembrane; Transmembrane helix;
KW   Transport; Ubiquinone.
FT   CHAIN           1..171
FT                   /note="NADH-ubiquinone oxidoreductase chain 6"
FT                   /id="PRO_0000118295"
FT   TRANSMEM        1..21
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        25..44
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        49..71
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        85..105
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        150..170
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   171 AA;  18317 MW;  CFB40906D8004641 CRC64;
     MYVMFLLSIL LVLGFVSISS KPSPIYGGVG LIVSGAVGCG IIMGFGGSFM GLMVFLIYLG
     GMLVVFGYTT AMATEEYPET WGSNVVIWGV VLLGVGMELF MVAWMVEYGG FGVGDVFGGV
     ENWMIFESKE GGVIREDSLG VASLYNKASW FAAIAGWSLF ISVLIVIEII R