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UniProtKB/Swiss-Prot entry Q31NV7


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

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Entry information
Entry name UCRI_SYNE7
Primary accession number Q31NV7
Secondary accession numbers None
Integrated into Swiss-Prot on August 21, 2007
Sequence was last modified on December 6, 2005 (Sequence version 1)
Annotations were last modified on    September 2, 2008 (Entry version 22)
Name and origin of the protein
Protein name Cytochrome b6-f complex iron-sulfur subunit
Synonyms EC 1.10.99.1
Rieske iron-sulfur protein
Plastohydroquinone:plastocyanin oxidoreductase iron-sulfur protein
ISP
RISP
Gene name
Name: petC
OrderedLocusNames: Synpcc7942_1232
From
Synechococcus elongatus (strain PCC 7942) (Anacystis nidulans R2) [TaxID: 1140] [HAMAP proteome]
Taxonomy Bacteria; Cyanobacteria; Chroococcales; Synechococcus.
Protein existence 3: Inferred from homology;
References
[1]
NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T., Hammon N., Israni S., Pitluck S., Schmutz J., Larimer F., Land M., Kyrpides N., Lykidis A., Richardson P.;
"Complete sequence of chromosome 1 of Synechococcus elongatus PCC 7942.";
Submitted (AUG-2005) to the EMBL/GenBank/DDBJ databases.
Comments
  • FUNCTION: Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions (By similarity).
  • CATALYTIC ACTIVITY: Plastoquinol-1 + 2 oxidized plastocyanin = plastoquinone + 2 reduced plastocyanin.
  • COFACTOR: Binds 1 2Fe-2S cluster per subunit (By similarity).
  • SUBUNIT: The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer (By similarity).
  • SUBCELLULAR LOCATION: Cellular thylakoid membrane; Single-pass membrane protein (By similarity). Note=The transmembrane helix obliquely spans the membrane in one monomer, and its extrinsic C-terminal domain is part of the other monomer (By similarity).
  • MISCELLANEOUS: The Rieske iron-sulfur 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
CP000100; ABB57262.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
RefSeq YP_400249.1; -.
3D structure databases
SMR Q31NV7; 13-178.
ModBase Q31NV7.
Enzyme and pathway databases
BioCyc MetaCyc:SYNPCC7942_1232-MON; -.
SELO1140:SYNPCC7942_1232-MON; -.
Ontologies
GO
GO:0042651; Cellular component: thylakoid membrane (inferred from electronic annotation from UniProtKB-SubCell).
GO:0045158; Molecular function: electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity (inferred from electronic annotation from HAMAP).
GO:0009496; Molecular function: plastoquinol-plastocyanin reductase activity (inferred from electronic annotation from HAMAP).
GO:0015979; Biological process: photosynthesis (inferred from electronic annotation from HAMAP).
QuickGo view.
Family and domain databases
HAMAP MF_01335; -; 1.
PBIL [Tree]
InterPro IPR014909; Cyt_b6-F_Fe-S_su.
IPR014349; Rieske.
IPR005805; Rieske_C.
IPR005806; Rieske_reg.
Graphical view of domain structure.
Gene3D G3DSA:2.102.10.10; Rieske_reg; 1.
PANTHER PTHR10134; Rieske; 1.
Pfam PF08802; CytB6-F_Fe-S; 1.
PF00355; Rieske; 1.
Pfam graphical view of domain structure.
PRINTS PR00162; RIESKE.
PROSITE PS51296; RIESKE; 1.
PROSITE graphical view of domain structure (profiles).
BLOCKS Q31NV7.
Genome annotation databases
GeneID 3773520; -.
GenomeReviews CP000100_GR; Synpcc7942_1232.
KEGG syf:Synpcc7942_1232; -.
Phylogenomic databases
HOGENOM Q31NV7; -.
Genome annotation databases
CMR Q31NV7; Synpcc7942_1232.
Other
ProtoNet Q31NV7.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
2Fe-2S; Complete proteome; Electron transport; Iron; Iron-sulfur; Membrane; Metal-binding; Oxidoreductase; Thylakoid; Transmembrane; Transport.
Features
SEVIEWER logo Feature table viewer FT aligner logo Feature aligner
KeyFrom   To Length Description FTId
CHAIN   1   179  179     Cytochrome b6-f complex iron-sulfur subunit. PRO_0000298467
TRANSMEM   21    43  23     Potential. 
DOMAIN   61   162  102     Rieske. 
METAL   108   108        Iron-sulfur (2Fe-2S) (By similarity). 
METAL   110   110        Iron-sulfur (2Fe-2S); via pros nitrogen (By similarity). 
METAL   126   126        Iron-sulfur (2Fe-2S) (By similarity). 
METAL   129   129        Iron-sulfur (2Fe-2S); via pros nitrogen (By similarity). 
DISULFID   113   128        By similarity. 
Sequence information
Length: 179 AA [This is the length of the unprocessed precursor] Molecular weight: 18834 Da [This is the MW of the unprocessed precursor] CRC64: EC139A4D25CAA047 [This is a checksum on the sequence]
        10         20         30         40         50         60 
MTQVSGASDV PSMGRRQFMN LLTFGSVTGV ALGALYPVVN YFIPPSSGGS GGGVAAKDAL 

        70         80         90        100        110        120 
GNDVVLSKFL ADHNVGDRTL VQGLKGDPTY LVVESSEAIG DYGINAVCTH LGCVVPWNAS 

       130        140        150        160        170 
ENKFKCPCHG SQYDATGKVV RGPAPLSLAL AHVSVTDDKV FLSPWTETDF RTGDNPWWA 

Q31NV7 in FASTA format

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