ID   NU1M_ZAGBR              Reviewed;         303 AA.
AC   O78713;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1998, sequence version 1.
DT   25-MAY-2022, entry version 71.
DE   RecName: Full=NADH-ubiquinone oxidoreductase chain 1;
DE            EC=7.1.1.2 {ECO:0000250|UniProtKB:P03886};
DE   AltName: Full=NADH dehydrogenase subunit 1;
DE   Flags: Fragment;
GN   Name=MT-ND1; Synonyms=MTND1, NADH1, ND1;
OS   Zaglossus bruijni (Western long-beaked echidna).
OG   Mitochondrion.
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Monotremata; Tachyglossidae; Zaglossus.
OX   NCBI_TaxID=33543;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   TISSUE=Liver;
RX   PubMed=9732458; DOI=10.1007/pl00006389;
RA   Cao Y., Janke A., Waddell P.J., Westerman M., Takenaka O., Murata S.,
RA   Okada N., Paeaebo S., Hasegawa M.;
RT   "Conflict among individual mitochondrial proteins in resolving the
RT   phylogeny of eutherian orders.";
RL   J. Mol. Evol. 47:307-322(1998).
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:P03886}.
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:P03886};
CC   -!- SUBUNIT: Core subunit of respiratory chain NADH dehydrogenase (Complex
CC       I) which is composed of 45 different subunits.
CC       {ECO:0000250|UniProtKB:P03887}.
CC   -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane
CC       {ECO:0000250|UniProtKB:P03887}; Multi-pass membrane protein
CC       {ECO:0000255}.
CC   -!- SIMILARITY: Belongs to the complex I subunit 1 family. {ECO:0000305}.
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DR   EMBL; AB011230; BAA32122.1; -; Genomic_DNA.
DR   AlphaFoldDB; O78713; -.
DR   SMR; O78713; -.
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   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; Respiratory chain; Translocase; Transmembrane; Transmembrane helix;
KW   Transport; Ubiquinone.
FT   CHAIN           <1..>303
FT                   /note="NADH-ubiquinone oxidoreductase chain 1"
FT                   /id="PRO_0000117503"
FT   TRANSMEM        56..76
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        88..108
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        132..152
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        159..179
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        219..239
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        241..261
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        282..302
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   NON_TER         1
FT   NON_TER         303
SQ   SEQUENCE   303 AA;  34223 MW;  64E8AF098E26FC9F CRC64;
     ILLAVAFLTL IERKILGYMQ FRKGPNIVGP HGLLQPIADA VKLFIKEPLR PMTSSIYMFI
     LAPILALSLA LTIWVPLPMP LPLIDLNLGL LFVLSVSGLS VYSILWSGWA SNSKYALTGA
     LRAVAQTISY EVTLAIILLS IMLINGSFTL TTLNLTQEFM WLVVPTWPLM LTRFISTLAE
     TNRAPFDLTE GESELVSGFN VEYAAGPFAM FFLAEYANII IMNALTVILF FGAYHLIFLP
     ELSTINFMIK TMMLTSLFLW IRASYPRFRY DQLMHLLWKN FLPITLVTCL WFIMLPLALS
     WIP