ID   NU1M_GADMO              Reviewed;         323 AA.
AC   P55779;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1997, sequence version 1.
DT   25-MAY-2022, entry version 77.
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   Gadus morhua (Atlantic cod).
OG   Mitochondrion.
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata;
OC   Zeiogadaria; Gadariae; Gadiformes; Gadoidei; Gadidae; Gadus.
OX   NCBI_TaxID=8049;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=Norwegian coastal 1;
RX   PubMed=8817926;
RA   Johansen S., Bakke I.;
RT   "The complete mitochondrial DNA sequence of Atlantic cod (Gadus morhua):
RT   relevance to taxonomic studies among codfishes.";
RL   Mol. Mar. Biol. Biotechnol. 5:203-214(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; X99772; CAA68106.1; -; Genomic_DNA.
DR   PIR; T11820; T11820.
DR   RefSeq; NP_008613.1; NC_002081.1.
DR   AlphaFoldDB; P55779; -.
DR   SMR; P55779; -.
DR   GeneID; 808449; -.
DR   CTD; 4535; -.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005743; C:mitochondrial inner membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0070469; C:respirasome; IEA:UniProtKB-KW.
DR   GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:UniProtKB-EC.
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..323
FT                   /note="NADH-ubiquinone oxidoreductase chain 1"
FT                   /id="PRO_0000117407"
FT   TRANSMEM        9..29
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        76..96
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        107..127
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        145..165
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        175..195
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        227..247
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        258..278
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        298..318
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   323 AA;  35412 MW;  42CBC1623EA7CBD5 CRC64;
     MTNIVVSYIL NPLIYMVPVL LAVAFLTLIE RKVLGYMQLR KGPNIVGPYG LLQPIADGVK
     LFIKEPIRPS TSSPSLFVLP VLALTLALTL WAPMPMPFPV ADLNLSILFV LALSSLAVYS
     ILGSGWASNS KYALVGALRA VAQTISYEVS LGLILLSVII FSGGFTLQTF STTQEATWLA
     LPAWPLAAMW YISTLEETNR APFDLTEGES ELVSGFNVEY AGGPFALFFL AEYANILLMN
     TLSAVLFLGS SYSTTMPEFT SLTLMTKAAL LSMVFLWVRA SYPRFRYDQL MHLVWKNFLP
     LTLALVIWHL SLSTACAGLP PHA