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UniProtKB/Swiss-Prot entry P29917


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

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Entry information
Entry name NQO5_PARDE
Primary accession number P29917
Secondary accession numbers None
Integrated into Swiss-Prot on April 1, 1993
Sequence was last modified on January 23, 2007 (Sequence version 3)
Annotations were last modified on    November 25, 2008 (Entry version 53)
Name and origin of the protein
Protein name NADH-quinone oxidoreductase chain 5
Synonyms EC 1.6.99.5
NADH dehydrogenase I, chain 5
NDH-1, chain 5
Gene name
Name: nqo5
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 2-15.
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 30 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; AAA03037.1; ALT_SEQ; Unassigned_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
PIR D42573; D42573.
3D structure databases
ModBase P29917.
Ontologies
GO
GO:0005886; Cellular component: plasma membrane (inferred from electronic annotation from UniProtKB-KW).
GO:0008137; Molecular function: NADH dehydrogenase (ubiquinone) activity (inferred from electronic annotation from InterPro).
GO:0048038; Molecular function: quinone binding (inferred from electronic annotation from UniProtKB-KW).
GO:0006120; Biological process: mitochondrial electron transport, NADH to ubiquinone (inferred from electronic annotation from InterPro).
QuickGo view.
Family and domain databases
InterPro IPR010218; NADH_DH_csu.
IPR001268; NADH_DHase_Ub_30kDa_su.
Graphical view of domain structure.
Pfam PF00329; Complex1_30kDa; 1.
Pfam graphical view of domain structure.
ProDom PD001581; Complex1_30K; 1.
[Domain structure / List of seq. sharing at least 1 domain]
TIGRFAMs TIGR01961; NuoC_fam; 1.
PROSITE PS00542; COMPLEX1_30K; 1.
BLOCKS P29917.
ProtoNet P29917.
Other
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
INIT_MET   1     1        Removed. 
CHAIN   2   207  206     NADH-quinone oxidoreductase chain 5. PRO_0000118668
Sequence information
Length: 207 AA [This is the length of the unprocessed precursor] Molecular weight: 23731 Da [This is the MW of the unprocessed precursor] CRC64: 070DFDEBE70FEC6D [This is a checksum on the sequence]
        10         20         30         40         50         60 
MSEALSDEAL LELAEHIAVR RENDVISTQA VGELTVNATL SGVIGLIEFL RNDPNCRFST 

        70         80         90        100        110        120 
LIDITAVDNP ARPARFDVVY HLLSMYQNQR IRVKVQVRED ELVPSLIGVF PGANWYEREV 

       130        140        150        160        170        180 
FDLFGILFSG HSDLRRILTD YGFRGHPLRK DFPTTGYVEV RWSDIEKRVV YEPVNLVQEY 

       190        200 
RQFDFLSPWE GAKYVLPGDE KAPEAKK 

P29917 in FASTA format

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