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UniProtKB/Swiss-Prot entry P29916


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name NQO4_PARDE
Primary accession number P29916
Secondary accession numbers None
Integrated into Swiss-Prot on April 1, 1993
Sequence was last modified on April 1, 1993 (Sequence version 1)
Annotations were last modified on    September 2, 2008 (Entry version 47)
Name and origin of the protein
Protein name NADH-quinone oxidoreductase chain 4
Synonyms EC 1.6.99.5
NADH dehydrogenase I, chain 4
NDH-1, chain 4
Gene name
Name: nqo4
From
Paracoccus denitrificans [TaxID: 266] 
Taxonomy Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales; Rhodobacteraceae; Paracoccus.
Protein existence 1: Evidence at protein level;
References
[1]
NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND PROTEIN SEQUENCE OF 1-15.
STRAIN=ATCC 13543 / NRRL B-3784;
DOI=10.1021/bi00145a009; PubMed=1637825 [NCBI, ExPASy, EBI, Israel, Japan]
Xu X., Matsuno-Yagi A., Yagi T.;
"Gene cluster of the energy-transducing NADH-quinone oxidoreductase of Paracoccus denitrificans: characterization of four structural gene products.";
Biochemistry 31:6925-6932(1992).
Comments
  • FUNCTION: NDH-1 shuttles electrons from NADH, via FMN and iron-sulfur (Fe-S) centers, to quinones in the respiratory chain. The immediate electron acceptor for the enzyme in this species is believed to be ubiquinone. Couples the redox reaction to proton translocation (for every two electrons transferred, four hydrogen ions are translocated across the cytoplasmic membrane), and thus conserves the redox energy in a proton gradient.
  • CATALYTIC ACTIVITY: NADH + quinone = NAD+ + quinol.
  • SUBUNIT: NDH-1 is composed of at least 14 different subunits, nqo1 to nqo14. The complex has a L-shaped structure, with the hydrophobic arm (subunits nqo7, nqo8, nqo10 to nqo14) embedded in the inner membrane and the hydrophilic peripheral arm (subunits nqo1 to nqo6, nqo9) protruding into the bacterial cytoplasm. The hydrophilic domain contains all the redox centers.
  • SUBCELLULAR LOCATION: Cell inner membrane; Peripheral membrane protein.
  • SIMILARITY: Belongs to the complex I 49 kDa subunit family.
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
M93015; AAA03038.1; -; Unassigned_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
PIR F42573; F42573.
3D structure databases
ModBase P29916.
Family and domain databases
InterPro IPR014029; NADH-UbQ_OxRdtase_49kDa_CS.
IPR010219; NADH_DH_1_dsu.
IPR001135; NADH_UbQ_OxRdtase_49kDa.
Graphical view of domain structure.
Pfam PF00346; Complex1_49kDa; 1.
Pfam graphical view of domain structure.
TIGRFAMs TIGR01962; NuoD; 1.
PROSITE PS00535; COMPLEX1_49K; 1.
BLOCKS P29916.
Other
ProtoNet P29916.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
Cell inner membrane; Cell membrane; Direct protein sequencing; Membrane; NAD; Oxidoreductase; Quinone; Ubiquinone.
Features
SEVIEWER logo Feature table viewer
KeyFrom To Length Description FTId
CHAIN   1   412  412     NADH-quinone oxidoreductase chain 4. PRO_0000118616
Sequence information
Length: 412 AA [This is the length of the unprocessed precursor] Molecular weight: 46674 Da [This is the MW of the unprocessed precursor] CRC64: A3299D2E54011296 [This is a checksum on the sequence]
        10         20         30         40         50         60 
MDGDIRKNSL DDGSMDALTG EQSIRNFNIN FGPQHPAAHG LLRMVLELDG EIVERADPHI 

        70         80         90        100        110        120 
GLLHRGTEKL MESRTYLQNL PYLDRLDYVA PMNQEHAWCL AIERLTGTVI PRRASLIRVL 

       130        140        150        160        170        180 
YSEIGRILNH LMGVTTGAMD VGALTPPLWG FEAREELMIF YERACGARLH AAYFRPGGVH 

       190        200        210        220        230        240 
QDLPPDLLDD IEEWCERFPK LVDDLDTLLT ENRIFKQRLV DIGIVTEADA LDWGYTGVMV 

       250        260        270        280        290        300 
RGSGLAWDLR RSQPYECYDE FDFQIPVGRN GDCYDRYLCR MAEMRESCKI MQQAVQKLRA 

       310        320        330        340        350        360 
EPAGDVLARG KLTPPRRAEM KRDMESLIHH FKLYTEGFKV PAGEVYAAVE GPKGEFGVYL 

       370        380        390        400        410 
VADGTNKPWR AKLRAPGFAH LQSIDWMSRG HMLADVPAII ATLDIVFGEV DR 

P29916 in FASTA format

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