NU3M_EMEND
ID NU3M_EMEND Reviewed; 136 AA.
AC P15956;
DT 01-APR-1990, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1995, sequence version 2.
DT 25-MAY-2022, entry version 73.
DE RecName: Full=NADH-ubiquinone oxidoreductase chain 3;
DE EC=7.1.1.2;
DE AltName: Full=NADH dehydrogenase subunit 3;
GN Name=nd3; Synonyms=ndhC;
OS Emericella nidulans (Aspergillus nidulans).
OG Mitochondrion.
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC Eurotiomycetidae; Eurotiales; Aspergillaceae; Aspergillus;
OC Aspergillus subgen. Nidulantes.
OX NCBI_TaxID=162425;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=yA2 pyroA4 cnxC3;
RX PubMed=2530353; DOI=10.1016/0022-2836(89)90150-2;
RA Dyson N.J., Brown T.A., Ray J.A., Waring R.B., Scazzocchio C., Davies R.W.;
RT "Processing of mitochondrial RNA in Aspergillus nidulans.";
RL J. Mol. Biol. 208:587-599(1989).
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 3 family. {ECO:0000305}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; X15441; CAA33480.1; -; Genomic_DNA.
DR PIR; S05628; S05628.
DR AlphaFoldDB; P15956; -.
DR SMR; P15956; -.
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 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; NAD; Respiratory chain;
KW Translocase; Transmembrane; Transmembrane helix; Transport; Ubiquinone.
FT CHAIN 1..136
FT /note="NADH-ubiquinone oxidoreductase chain 3"
FT /id="PRO_0000117741"
FT TRANSMEM 5..25
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 55..75
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 85..105
FT /note="Helical"
FT /evidence="ECO:0000255"
SQ SEQUENCE 136 AA; 15650 MW; DEE75F49A7C6F67A CRC64;
MTTTTFFLFL IPVLAIILLA VNLIFSPHNP YQEKDSAFEC GFHSFLGQNR TQFSISFFIF
ALLFLLFDLE ILLVYPYVVS AYTNGIYGLV IMLVFFLVGT LGFAFELGKN ALKIESRQVY
NFNYKSWSGY SLIYNK