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UniProtKB/Swiss-Prot entry Q02762


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

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Entry information
Entry name UCRI_RHOSH
Primary accession number Q02762
Secondary accession number P72327
Integrated into Swiss-Prot on February 1, 1994
Sequence was last modified on February 1, 1994 (Sequence version 1)
Annotations were last modified on    July 22, 2008 (Entry version 58)
Name and origin of the protein
Protein name Ubiquinol-cytochrome c reductase iron-sulfur subunit
Synonyms EC 1.10.2.2
Rieske iron-sulfur protein
RISP
Gene name
Name: petA
Synonyms: fbcF
From
Rhodobacter sphaeroides (Rhodopseudomonas sphaeroides) [TaxID: 1063] 
Taxonomy Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales; Rhodobacteraceae; Rhodobacter.
Protein existence 1: Evidence at protein level;
References
[1]
NUCLEOTIDE SEQUENCE [GENOMIC DNA].
PubMed=2176595 [NCBI, ExPASy, EBI, Israel, Japan]
Yun C.-H., Beci R., Crofts A.R., Kaplan S., Gennis R.B.;
"Cloning and DNA sequencing of the fbc operon encoding the cytochrome bc1 complex from Rhodobacter sphaeroides. Characterization of fbc deletion mutants and complementation by a site-specific mutational variant.";
Eur. J. Biochem. 194:399-411(1990).
[2]
NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1-95.
DOI=10.1016/0022-2836(87)90324-X; PubMed=2821272 [NCBI, ExPASy, EBI, Israel, Japan]
Davidson E., Daldal F.;
"fbc operon, encoding the Rieske Fe-S protein cytochrome b, and cytochrome c1 apoproteins previously described from Rhodopseudomonas sphaeroides, is from Rhodopseudomonas capsulata.";
J. Mol. Biol. 195:25-29(1987).
Comments
  • FUNCTION: Component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex), which is a respiratory chain that generates an electrochemical potential coupled to ATP synthesis.
  • CATALYTIC ACTIVITY: QH2 + 2 ferricytochrome c = Q + 2 ferrocytochrome c + 2 H+.
  • COFACTOR: Binds 1 2Fe-2S cluster per subunit (By similarity).
  • SUBUNIT: The main subunits of complex b-c1 are: cytochrome b, cytochrome c1 and the Rieske protein.
  • SUBCELLULAR LOCATION: Cell membrane; Single-pass membrane protein.
  • MISCELLANEOUS: The Rieske protein is a high potential 2Fe-2S protein.
  • SIMILARITY: Contains 1 Rieske domain.
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
X56157; CAA39623.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
M18577; AAA26150.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
PIR S13868; S13868.
3D structure databases
PDB
2FYN; X-ray; 3.20 A; C/F/I/L/O/R=1-187.[ExPASy / RCSB / EBI]
2NUK; X-ray; 1.20 A; A=47-187.[ExPASy / RCSB / EBI]
2NUM; X-ray; 1.50 A; A=47-187.[ExPASy / RCSB / EBI]
2NVE; X-ray; 1.50 A; A=47-187.[ExPASy / RCSB / EBI]
2NVF; X-ray; 1.50 A; A=47-187.[ExPASy / RCSB / EBI]
2NVG; X-ray; 1.35 A; A=47-187.[ExPASy / RCSB / EBI]
2NWF; X-ray; 1.10 A; A=47-187.[ExPASy / RCSB / EBI]
2QJK; X-ray; 3.10 A; C/F/I/L/O/R=9-187.[ExPASy / RCSB / EBI]
2QJP; X-ray; 2.60 A; C/F/I/L=9-187.[ExPASy / RCSB / EBI]
2QJY; X-ray; 2.40 A; C/F/I/L/O/R=1-187.[ExPASy / RCSB / EBI]
Detailed list of linked structures.
PDBsum 2FYN; -.
2NUK; -.
2NUM; -.
2NVE; -.
2NVF; -.
2NVG; -.
2NWF; -.
2QJK; -.
2QJP; -.
2QJY; -.
ModBase Q02762.
Ontologies
GO
GO:0005886; Cellular component: plasma membrane (inferred from electronic annotation from UniProtKB-SubCell).
QuickGo view.
Family and domain databases
InterPro IPR014349; Rieske.
IPR005805; Rieske_C.
IPR006317; Rieske_proteo.
IPR005806; Rieske_reg.
IPR006311; Tat.
Graphical view of domain structure.
Gene3D G3DSA:2.102.10.10; Rieske_reg; 1.
PANTHER PTHR10134; Rieske; 1.
Pfam PF00355; Rieske; 1.
Pfam graphical view of domain structure.
PRINTS PR00162; RIESKE.
TIGRFAMs TIGR01416; Rieske_proteo; 1.
TIGR01409; TAT_signal_seq; 1.
PROSITE PS51296; RIESKE; 1.
PS51318; TAT; 1.
PROSITE graphical view of domain structure (profiles).
BLOCKS Q02762.
Other
ProtoNet Q02762.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
2Fe-2S; 3D-structure; Cell membrane; Electron transport; Iron; Iron-sulfur; Membrane; Metal-binding; Oxidoreductase; Transmembrane; Transport.
Features
SEVIEWER logo Feature table viewer FT aligner logo Feature aligner
KeyFrom   To Length Description FTId
CHAIN   1   187  187     Ubiquinol-cytochrome c reductase iron-sulfur subunit. PRO_0000127764
TRANSMEM   15    35  21     Potential. 
DOMAIN   89   185  97     Rieske. 
METAL   129   129        Iron-sulfur (2Fe-2S) (By similarity). 
METAL   131   131        Iron-sulfur (2Fe-2S) (via pros nitrogen) (By similarity). 
METAL   149   149        Iron-sulfur (2Fe-2S) (By similarity). 
METAL   152   152        Iron-sulfur (2Fe-2S) (via pros nitrogen) (By similarity). 
DISULFID   134   151        By similarity. 
HELIX   10    36  27      
TURN   42    44  3      
STRAND   50    53  4      
STRAND   61    67  7      
STRAND   70    76  7      
HELIX   79    86  8      
HELIX   90    92  3      
HELIX   111   114  4      
STRAND   115   117  3      
STRAND   122   126  5      
TURN   130   132  3      
STRAND   137   141  5      
TURN   142   145  4      
STRAND   146   149  4      
TURN   150   153  4      
STRAND   154   156  3      
STRAND   162   166  5      
STRAND   175   186  12      
Sequence information
Length: 187 AA [This is the length of the unprocessed precursor] Molecular weight: 19910 Da [This is the MW of the unprocessed precursor] CRC64: 575B47EEEECD74D2 [This is a checksum on the sequence]
        10         20         30         40         50         60 
MSNAEDHAGT RRDFLYYATA GAGAVATGAA VWPLINQMNP SADVQALASI FVDVSSVEPG 

        70         80         90        100        110        120 
VQLTVKFLGK PIFIRRRTEA DIELGRSVQL GQLVDTNARN ANIDAGAEAT DQNRTLDEAG 

       130        140        150        160        170        180 
EWLVMWGVCT HLGCVPIGGV SGDFGGWFCP CHGSHYDSAG RIRKGPAPEN LPIPLAKFID 


ETTIQLG 

Q02762 in FASTA format

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