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UniProtKB/Swiss-Prot entry Q3AWL7


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

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Entry information
Entry name UCRI_SYNS9
Primary accession number Q3AWL7
Secondary accession numbers None
Integrated into Swiss-Prot on August 21, 2007
Sequence was last modified on November 22, 2005 (Sequence version 1)
Annotations were last modified on    November 4, 2008 (Entry version 23)
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: Syncc9902_1734
From
Synechococcus sp. (strain CC9902) [TaxID: 316279] [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., Martinez M., Schmutz J., Larimer F., Land M., Kyrpides N., Ivanova N., Richardson P.;
"Complete sequence of Synechococcus sp. CC9902.";
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
CP000097; ABB26691.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
RefSeq YP_377735.1; -.
3D structure databases
SMR Q3AWL7; 12-177.
ModBase Q3AWL7.
Enzyme and pathway databases
BioCyc SSP1131-1:SYNCC9902_1734-MON; -.
Ontologies
GO
GO:0016021; Cellular component: integral to membrane (inferred from electronic annotation from UniProtKB-KW).
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:0005506; Molecular function: iron ion binding (inferred from electronic annotation from UniProtKB-KW).
GO:0009496; Molecular function: plastoquinol-plastocyanin reductase activity (inferred from electronic annotation from HAMAP).
GO:0022900; Biological process: electron transport chain (inferred from electronic annotation from UniProtKB-KW).
GO:0015979; Biological process: photosynthesis (inferred from electronic annotation from HAMAP).
GO:0006810; Biological process: transport (inferred from electronic annotation from UniProtKB-KW).
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.
IPR006311; Tat.
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.
TIGRFAMs TIGR01409; TAT_signal_seq; 1.
PROSITE PS51296; RIESKE; 1.
PS51318; TAT; 1.
PROSITE graphical view of domain structure (profiles).
BLOCKS Q3AWL7.
ProtoNet Q3AWL7.
Genome annotation databases
GeneID 3742967; -.
GenomeReviews CP000097_GR; Syncc9902_1734.
KEGG sye:Syncc9902_1734; -.
Phylogenomic databases
HOGENOM Q3AWL7; -.
Genome annotation databases
CMR Q3AWL7; Syncc9902_1734.
Other
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   178  178     Cytochrome b6-f complex iron-sulfur subunit. PRO_0000298464
TRANSMEM   20    42  23     Potential. 
DOMAIN   65   161  97     Rieske. 
METAL   107   107        Iron-sulfur (2Fe-2S) (By similarity). 
METAL   109   109        Iron-sulfur (2Fe-2S); via pros nitrogen (By similarity). 
METAL   125   125        Iron-sulfur (2Fe-2S) (By similarity). 
METAL   128   128        Iron-sulfur (2Fe-2S); via pros nitrogen (By similarity). 
DISULFID   112   127        By similarity. 
Sequence information
Length: 178 AA [This is the length of the unprocessed precursor] Molecular weight: 18737 Da [This is the MW of the unprocessed precursor] CRC64: E00042B162FEEFD2 [This is a checksum on the sequence]
        10         20         30         40         50         60 
MTQIPSSDVP GMGRRQFMNL LTFGSVTGVA LGALYPVARY FIPPKAAGSG GGTTAKDELG 

        70         80         90        100        110        120 
NVVTATGWLS THPEGDRSLV QGLKGDPTYL IVEGADAIGS YGINAICTHL GCVVPWNSGA 

       130        140        150        160        170 
NKFMCPCHGS QYDATGKVVR GPAPLSLALA NVSVEDDNVF VSEWSETDFR TGDKPWWA 

Q3AWL7 in FASTA format

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