ID   NU4M_ASPAM              Reviewed;         488 AA.
AC   P03913;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   25-MAY-2022, entry version 73.
DE   RecName: Full=NADH-ubiquinone oxidoreductase chain 4;
DE            EC=7.1.1.2;
DE   AltName: Full=NADH dehydrogenase subunit 4;
GN   Name=ND4;
OS   Aspergillus amstelodami.
OG   Mitochondrion.
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC   Eurotiomycetidae; Eurotiales; Aspergillaceae; Aspergillus;
OC   Aspergillus subgen. Aspergillus.
OX   NCBI_TaxID=5054;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Lazarus C.M., Kuntzel H.;
RL   Submitted (MAR-1984) to the PIR data bank.
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   PIR; A00442; QXASM4.
DR   AlphaFoldDB; P03913; -.
DR   SMR; P03913; -.
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; 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; 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..488
FT                   /note="NADH-ubiquinone oxidoreductase chain 4"
FT                   /id="PRO_0000117894"
FT   TRANSMEM        1..21
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        34..54
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        79..99
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        110..130
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        134..154
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        164..184
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        207..227
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        238..258
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        272..292
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        301..321
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        328..348
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        367..387
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        407..427
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        452..472
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   488 AA;  54299 MW;  2FE1E7914C24003A CRC64;
     MFLLLLLIPL IGIGFVTIEG NYGLSLINNI RIKSIALTTS IINLVVSLIM FILFDFSSKQ
     FQFIEEHYQI SYFDIYLGVD GLSIYFILLT TIIMPIAILC NWNSIQSKNV LSFVVIMLLL
     ETLLLAVFLV LDVLLFYIFF ESILPPLFLL IGLFGSSNKV RASFYLFLYT LLGSLFMLLS
     IVAMSSIMGT TDFDALSKSN FNYVTQLFLF YGIFIAFAVK TPVSFLNTWL LKAHVESPLS
     GSIILAGIVL KLSLYGIFRL ILPLLPKASL NYTYIIYVIG VITIIYASFS TLRTIDIKEL
     IAYSSVSHAA VYSIGAFSNT IQGIEGSIAL GLAHGFVSSG LFICAGGILY DRSSTRLITY
     YRGMAQVMPI FSVLFFILSL GNSGTPLTLN FIGEFMSLYG VFERMPLLGV LASTSIVFSA
     AYTIFMYNRI VFGGSYSIYF VENIGDVTRR EFIMLLVFVV LTVLFGIYPA PILDGLHYSV
     SSLIYSIN