ID   NU6M_TACAC              Reviewed;         166 AA.
AC   Q8W9G2;
DT   13-SEP-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-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   Tachyglossus aculeatus aculeatus (Southeast Australian short-beaked
OS   echidna).
OG   Mitochondrion.
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Monotremata; Tachyglossidae; Tachyglossus.
OX   NCBI_TaxID=49271;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   TISSUE=Liver;
RX   PubMed=11734900; DOI=10.1007/s00239-001-0019-8;
RA   Janke A., Magnell O., Wieczorek G., Westerman M., Arnason U.;
RT   "Phylogenetic analysis of 18S rRNA and the mitochondrial genomes of the
RT   wombat, Vombatus ursinus, and the spiny anteater, Tachyglossus aculeatus:
RT   increased support for the Marsupionta hypothesis.";
RL   J. Mol. Evol. 54:71-80(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}.
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DR   EMBL; AJ303116; CAC88021.1; -; Genomic_DNA.
DR   RefSeq; NP_542241.1; NC_003321.1.
DR   AlphaFoldDB; Q8W9G2; -.
DR   SMR; Q8W9G2; -.
DR   GeneID; 804512; -.
DR   CTD; 4541; -.
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..166
FT                   /note="NADH-ubiquinone oxidoreductase chain 6"
FT                   /id="PRO_0000118341"
FT   TRANSMEM        1..21
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        26..46
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        47..67
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        86..106
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        139..159
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   166 AA;  17983 MW;  7C409811D69EF53D CRC64;
     MMYFIYLLSV MLVLSFMAFA SNPSPIYGGL SLVLSGGVGC GIIVSLGGSF LGLIVFLVYL
     GGMLVVFGYT AAMATEEYPE TWVDYTVVLN LAIMVGMLGV VWYEFFEEVD LGVGYDLLDL
     GGMEVLGGDF NGVSLLYACG GWELVFSGWI LFLTIFVVLE VTRGEH