NU4M_HORSE
ID NU4M_HORSE Reviewed; 459 AA.
AC P48655;
DT 01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-1996, sequence version 1.
DT 03-AUG-2022, entry version 110.
DE RecName: Full=NADH-ubiquinone oxidoreductase chain 4;
DE EC=7.1.1.2 {ECO:0000250|UniProtKB:P03905};
DE AltName: Full=NADH dehydrogenase subunit 4;
GN Name=MT-ND4; Synonyms=MTND4, NADH4, ND4;
OS Equus caballus (Horse).
OG Mitochondrion.
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Laurasiatheria; Perissodactyla; Equidae; Equus.
OX NCBI_TaxID=9796;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Thoroughbred {ECO:0000312|Proteomes:UP000002281};
RX PubMed=7958969; DOI=10.1016/0378-1119(94)90713-7;
RA Xu X., Arnason U.;
RT "The complete mitochondrial DNA sequence of the horse, Equus caballus:
RT extensive heteroplasmy of the control region.";
RL Gene 148:357-362(1994).
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:P03905}.
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:P03905};
CC -!- SUBUNIT: Core subunit of respiratory chain NADH dehydrogenase (Complex
CC I) which is composed of 45 different subunits.
CC {ECO:0000250|UniProtKB:P03910}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane
CC {ECO:0000250|UniProtKB:P03910}; Multi-pass membrane protein
CC {ECO:0000255}.
CC -!- SIMILARITY: Belongs to the complex I subunit 4 family. {ECO:0000305}.
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DR EMBL; X79547; CAA56088.1; -; Genomic_DNA.
DR PIR; T11866; T11866.
DR RefSeq; NP_007169.1; NC_001640.1.
DR AlphaFoldDB; P48655; -.
DR SMR; P48655; -.
DR STRING; 9796.ENSECAP00000023109; -.
DR PaxDb; P48655; -.
DR Ensembl; ENSECAT00000029858; ENSECAP00000023109; ENSECAG00000027675.
DR GeneID; 807852; -.
DR KEGG; ecb:807852; -.
DR CTD; 4538; -.
DR VGNC; VGNC:59019; MT-ND4.
DR GeneTree; ENSGT00730000111316; -.
DR HOGENOM; CLU_007100_4_0_1; -.
DR InParanoid; P48655; -.
DR OMA; ITRWGNQ; -.
DR OrthoDB; 996580at2759; -.
DR Proteomes; UP000002281; Mitochondrion.
DR Bgee; ENSECAG00000027675; Expressed in prefrontal cortex and 23 other tissues.
DR GO; GO:0005743; C:mitochondrial inner membrane; ISS:UniProtKB.
DR GO; GO:0005747; C:mitochondrial respiratory chain complex I; IEA:Ensembl.
DR GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; ISS:UniProtKB.
DR GO; GO:0048039; F:ubiquinone binding; IBA:GO_Central.
DR GO; GO:0009060; P:aerobic respiration; IBA:GO_Central.
DR GO; GO:0015990; P:electron transport coupled proton transport; IBA:GO_Central.
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 InterPro; IPR000260; NADH4_N.
DR InterPro; IPR010227; NADH_Q_OxRdtase_chainM/4.
DR InterPro; IPR003918; NADH_UbQ_OxRdtase.
DR InterPro; IPR001750; ND/Mrp_mem.
DR PANTHER; PTHR43507; PTHR43507; 1.
DR Pfam; PF01059; Oxidored_q5_N; 1.
DR Pfam; PF00361; Proton_antipo_M; 1.
DR PRINTS; PR01437; NUOXDRDTASE4.
DR TIGRFAMs; TIGR01972; NDH_I_M; 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..459
FT /note="NADH-ubiquinone oxidoreductase chain 4"
FT /id="PRO_0000117941"
FT TRANSMEM 22..42
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 60..80
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 95..112
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 113..133
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 147..167
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 193..213
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 224..244
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 256..276
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 284..303
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 308..330
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 351..371
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 391..411
FT /note="Helical"
FT /evidence="ECO:0000255"
SQ SEQUENCE 459 AA; 51747 MW; 0955E6339F8D172F CRC64;
MLKIIIPTIM LMPLTWLSKK NMIWINTTTY SLLISLISLS LLNQPSNNSL NFSLMFFSDP
LSAPLLVLTT WLLPLMLMAS QHHLSKEPLI RKKLYITMLT MLQTFLIMTF TATELISFYI
LFEATLVPTL IIITRWGNQT ERLNAGLYFL FYTLMGSLPL LVALISIQNL TGSLNFLLIQ
YWNQALPDSW SNIFLWLACM MAFMVKMPVY GLHLWLPKAH VEAPIAGSMV LAAILLKLGG
YGMLRITTML NPQTSFMAYP FLMLSLWGMI MTSSICLRQT DLKSLIAYSS VSHMALVIVA
VLIQTPWSYM GATALMIAHG LTSSMLFCLA NSNYERTHSR TMILARGLQT LLPLMAAWWL
LASLTNLALP PSINLIGELF VVMSSFSWSN ITIILMGANI TITALYSLYM LITTQRGKYT
HHINSIKPSF TRENALMALH MTPLLLLSLN PKIILGFTY
