ID   NU1M_ORNAN              Reviewed;         318 AA.
AC   Q37717;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1997, sequence version 1.
DT   03-AUG-2022, entry version 101.
DE   RecName: Full=NADH-ubiquinone oxidoreductase chain 1;
DE            EC=7.1.1.2;
DE   AltName: Full=NADH dehydrogenase subunit 1;
GN   Name=MT-ND1; Synonyms=MTND1, NADH1, ND1;
OS   Ornithorhynchus anatinus (Duckbill platypus).
OG   Mitochondrion.
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Monotremata; Ornithorhynchidae; Ornithorhynchus.
OX   NCBI_TaxID=9258;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Glennie {ECO:0000312|Proteomes:UP000002279};
RX   PubMed=8919867; DOI=10.1007/bf02198841;
RA   Janke A., Gemmell N.J., Feldmaier-Fuchs G., von Haeseler A., Paabo S.;
RT   "The mitochondrial genome of a monotreme--the platypus (Ornithorhynchus
RT   anatinus).";
RL   J. Mol. Evol. 42:153-159(1996).
CC   -!- FUNCTION: Core subunit of the mitochondrial membrane respiratory chain
CC       NADH dehydrogenase (Complex I) that is believed to belong to the
CC       minimal assembly required for catalysis. Complex I functions in the
CC       transfer of electrons from NADH to the respiratory chain. The immediate
CC       electron acceptor for the enzyme is believed to be ubiquinone (By
CC       similarity). {ECO:0000250}.
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   -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane {ECO:0000250};
CC       Multi-pass membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the complex I subunit 1 family. {ECO:0000305}.
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DR   EMBL; X83427; CAA58455.1; -; Genomic_DNA.
DR   PIR; A58888; A58888.
DR   RefSeq; NP_008043.1; NC_000891.1.
DR   AlphaFoldDB; Q37717; -.
DR   SMR; Q37717; -.
DR   STRING; 9258.ENSOANP00000024997; -.
DR   Ensembl; ENSOANT00000028512; ENSOANP00000024997; ENSOANG00000019388.
DR   GeneID; 808708; -.
DR   KEGG; oaa:808708; -.
DR   CTD; 4535; -.
DR   eggNOG; KOG4770; Eukaryota.
DR   GeneTree; ENSGT00390000006621; -.
DR   HOGENOM; CLU_015134_0_1_1; -.
DR   InParanoid; Q37717; -.
DR   OrthoDB; 1214989at2759; -.
DR   TreeFam; TF352957; -.
DR   Proteomes; UP000002279; Mitochondrion.
DR   Bgee; ENSOANG00000019388; Expressed in brain and 8 other tissues.
DR   GO; GO:0005747; C:mitochondrial respiratory chain complex I; IBA:GO_Central.
DR   GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:UniProtKB-EC.
DR   GO; GO:0009060; P:aerobic respiration; IBA:GO_Central.
DR   GO; GO:0006120; P:mitochondrial electron transport, NADH to ubiquinone; IEA:Ensembl.
DR   GO; GO:0032981; P:mitochondrial respiratory chain complex I assembly; IEA:Ensembl.
DR   HAMAP; MF_01350; NDH1_NuoH; 1.
DR   InterPro; IPR001694; NADH_UbQ_OxRdtase_su1/FPO.
DR   InterPro; IPR018086; NADH_UbQ_OxRdtase_su1_CS.
DR   PANTHER; PTHR11432; PTHR11432; 1.
DR   Pfam; PF00146; NADHdh; 1.
DR   PROSITE; PS00667; COMPLEX1_ND1_1; 1.
DR   PROSITE; PS00668; COMPLEX1_ND1_2; 1.
PE   3: Inferred from homology;
KW   Electron transport; Membrane; Mitochondrion; Mitochondrion inner membrane;
KW   NAD; Reference proteome; Respiratory chain; Translocase; Transmembrane;
KW   Transmembrane helix; Transport; Ubiquinone.
FT   CHAIN           1..318
FT                   /note="NADH-ubiquinone oxidoreductase chain 1"
FT                   /id="PRO_0000117443"
FT   TRANSMEM        2..22
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        68..88
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        100..120
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        144..164
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        171..191
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        231..251
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        253..273
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        293..313
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   318 AA;  35904 MW;  C9C807F33CA466ED CRC64;
     MFLVNLLILI IPVLLAVAFL TLLERKILGY MQFRKGPNIV GAHGLLQPIA DAVKLFTKEP
     LRPLTSSIYM FILAPILALS LALTIWIPLP MPLPLIDLNL GLLFVLSVSG LSVYSILWSG
     WASNSKYALT GALRAVAQTI SYEVTLAIIL LSIMLINGSF TLTTLNLTQE YMWLIVPTWP
     LMLMWFISTL AETNRAPFDL TEGESELVSG FNVEYAAGPF AMFFLAEYAN IIIMNALTVI
     LFFGTYHLIF LPEMSTTTFM IKTMLLTSLF LWIRASYPRF RYDQLMHLLW KNFLPITLVT
     CLWYIMLPTT LSGLPPQM