NU3M_BALPH
ID NU3M_BALPH Reviewed; 115 AA.
AC P68308; P24973;
DT 25-OCT-2004, integrated into UniProtKB/Swiss-Prot.
DT 25-OCT-2004, sequence version 1.
DT 25-MAY-2022, entry version 57.
DE RecName: Full=NADH-ubiquinone oxidoreductase chain 3 {ECO:0000250|UniProtKB:P03897};
DE EC=7.1.1.2 {ECO:0000250|UniProtKB:P03897};
DE AltName: Full=NADH dehydrogenase subunit 3;
GN Name=MT-ND3 {ECO:0000250|UniProtKB:P03897}; Synonyms=MTND3, NADH3, ND3;
OS Balaenoptera physalus (Fin whale) (Balaena physalus).
OG Mitochondrion.
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Laurasiatheria; Artiodactyla; Whippomorpha; Cetacea; Mysticeti;
OC Balaenopteridae; Balaenoptera.
OX NCBI_TaxID=9770;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=Isolate No. 27 / Anno 1987; TISSUE=Liver;
RX PubMed=1779436; DOI=10.1007/bf02102808;
RA Arnason U., Gullberg A., Widegren B.;
RT "The complete nucleotide sequence of the mitochondrial DNA of the fin
RT whale, Balaenoptera physalus.";
RL J. Mol. Evol. 33:556-568(1991).
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 of complex I.
CC {ECO:0000250|UniProtKB:P03897}.
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:P03897};
CC -!- SUBUNIT: Core subunit of respiratory chain NADH dehydrogenase (Complex
CC I) which is composed of 45 different subunits. Interacts with TMEM186.
CC Interacts with TMEM242 (By similarity). {ECO:0000250|UniProtKB:P03897}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane
CC {ECO:0000250|UniProtKB:P03898}; Multi-pass membrane protein
CC {ECO:0000255}.
CC -!- SIMILARITY: Belongs to the complex I subunit 3 family. {ECO:0000305}.
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DR EMBL; X61145; CAA43446.1; -; Genomic_DNA.
DR PIR; H58850; H58850.
DR RefSeq; NP_006896.1; NC_001321.1.
DR AlphaFoldDB; P68308; -.
DR SMR; P68308; -.
DR GeneID; 807610; -.
DR CTD; 4537; -.
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 Gene3D; 1.20.58.1610; -; 1.
DR InterPro; IPR000440; NADH_UbQ/plastoQ_OxRdtase_su3.
DR InterPro; IPR038430; NDAH_ubi_oxred_su3_sf.
DR PANTHER; PTHR11058; PTHR11058; 1.
DR Pfam; PF00507; Oxidored_q4; 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..115
FT /note="NADH-ubiquinone oxidoreductase chain 3"
FT /id="PRO_0000117714"
FT TRANSMEM 3..23
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 55..75
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 84..104
FT /note="Helical"
FT /evidence="ECO:0000255"
SQ SEQUENCE 115 AA; 13022 MW; 405197D2F5D0AC4B CRC64;
MNLLLTLLTN TTLALLLVFI AFWLPQLNVY AEKTSPYECG FDPMGSARLP FSMKFFLVAI
TFLLFDLEIA LLLPLPWAIQ SNNLNTMLTM ALFLISLLAA SLAYEWTQEG LEWAE
