NU4M_PETMA
ID NU4M_PETMA Reviewed; 458 AA.
AC Q35542;
DT 15-JUL-1998, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1996, sequence version 1.
DT 25-MAY-2022, entry version 85.
DE RecName: Full=NADH-ubiquinone oxidoreductase chain 4;
DE EC=7.1.1.2;
DE AltName: Full=NADH dehydrogenase subunit 4;
GN Name=MT-ND4; Synonyms=MTND4, NADH4, ND4;
OS Petromyzon marinus (Sea lamprey).
OG Mitochondrion.
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Cyclostomata;
OC Hyperoartia; Petromyzontiformes; Petromyzontidae; Petromyzon.
OX NCBI_TaxID=7757;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=7713438; DOI=10.1093/genetics/139.2.873;
RA Lee W.J., Kocher T.D.;
RT "Complete sequence of a sea lamprey (Petromyzon marinus) mitochondrial
RT genome: early establishment of the vertebrate genome organization.";
RL Genetics 139:873-887(1995).
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 membrane {ECO:0000250}; Multi-pass
CC membrane protein {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the complex I subunit 4 family. {ECO:0000305}.
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DR EMBL; U11880; AAB08747.1; -; Genomic_DNA.
DR PIR; S55013; S55013.
DR RefSeq; NP_008157.1; NC_001626.1.
DR AlphaFoldDB; Q35542; -.
DR SMR; Q35542; -.
DR STRING; 7757.ENSPMAP00000011440; -.
DR Ensembl; ENSPMAT00000014134; ENSPMAP00000011440; ENSPMAG00000013107.
DR GeneID; 807809; -.
DR CTD; 4538; -.
DR GeneTree; ENSGT00730000111316; -.
DR HOGENOM; CLU_007100_4_0_1; -.
DR OMA; ITRWGNQ; -.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0031966; C:mitochondrial 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 GO; GO:0042773; P:ATP synthesis coupled electron transport; IEA:InterPro.
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; NAD; Respiratory chain;
KW Translocase; Transmembrane; Transmembrane helix; Transport; Ubiquinone.
FT CHAIN 1..458
FT /note="NADH-ubiquinone oxidoreductase chain 4"
FT /id="PRO_0000117967"
FT TRANSMEM 23..43
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 59..79
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 99..119
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 148..168
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 174..194
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 197..217
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 227..247
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 260..280
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 289..311
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 315..337
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 355..375
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 396..416
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 438..458
FT /note="Helical"
FT /evidence="ECO:0000255"
SQ SEQUENCE 458 AA; 51550 MW; E3D9226E7A03DB32 CRC64;
MLKLIIPSIM LIPMTFLINK KSLLWTATTF FSFLIAALST LTLNMDVAEH NSTNPLLSID
QFSCPLIMLS CWLLPLTIMG SQAHMKTEPI TRQKTMISLL ILLQVLLCIT FGASNLLMFY
IAFETTLIPT LLIITRWGNQ KERLTAGLYF LFYTLSASLP LLLALIMIQT HLNSLSIYII
PLSNLTLLLN TPWSETLWWI ACFLAFLIKM PLYIFHLWLP KAHVEAPIAG SMILAAILLK
LGGYGMIRMS SLFIPLTKDL AVPFMIIAMW GMIVTSSICL RQTDLKSMIA YSSVSHMGLV
VAGIFTMTPW AWSGALAMMI AHGLVSSGLL CLANITYERT HTRSIFMNRG LKTLFPLMSF
WWLMMTFANM ALPPFPNFMA EILIITSLFN WSNWTILLLG LSMTLTALFS LNMLIMTQHE
HPNKHAPVNP STTREHLLML MHMAPIILLI ANPSAIMI
