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UniProtKB/Swiss-Prot entry P74714


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

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Entry information
Entry name UCRIA_SYNY3
Primary accession number P74714
Secondary accession numbers None
Integrated into Swiss-Prot on June 21, 2005
Sequence was last modified on February 1, 1997 (Sequence version 1)
Annotations were last modified on    November 4, 2008 (Entry version 56)
Name and origin of the protein
Protein name Cytochrome b6-f complex iron-sulfur subunit 1
Synonyms EC 1.10.99.1
Rieske iron-sulfur protein 1
Plastohydroquinone:plastocyanin oxidoreductase iron-sulfur protein 1
ISP 1
RISP 1
Gene name
Name: petC1
OrderedLocusNames: slr1185
From
Synechocystis sp. (strain PCC 6803) [TaxID: 1148] [HAMAP proteome]
Taxonomy Bacteria; Cyanobacteria; Chroococcales; Synechocystis.
Protein existence 3: Inferred from homology;
References
[1]
NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
DOI=10.1093/dnares/3.3.109; PubMed=8905231 [NCBI, ExPASy, EBI, Israel, Japan]
Kaneko T., Sato S., Kotani H., Tanaka A., Asamizu E., Nakamura Y., Miyajima N., Hirosawa M., Sugiura M., Sasamoto S., Kimura T., Hosouchi T., Matsuno A., Muraki A., Nakazaki N., Naruo K., Okumura S., Shimpo S., Takeuchi C., Wada T., Watanabe A., Yamada M., Yasuda M., Tabata S.;
"Sequence analysis of the genome of the unicellular cyanobacterium Synechocystis sp. strain PCC6803. II. Sequence determination of the entire genome and assignment of potential protein-coding regions.";
DNA Res. 3:109-136(1996).
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
BA000022; BAA18833.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
PIR S76921; S76921.
RefSeq NP_443021.1; -.
3D structure databases
HSSP P08980; 1RFS. [HSSP ENTRY / PDB]
ModBase P74714.
Protein-protein interaction databases
IntAct P74714; -.
Enzyme and pathway databases
BioCyc SSP1148:SLR1185-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.
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.
PS51318; TAT; 1.
PROSITE graphical view of domain structure (profiles).
BLOCKS P74714.
ProtoNet P74714.
Genome annotation databases
GeneID 951899; -.
GenomeReviews BA000022_GR; slr1185.
KEGG syn:slr1185; -.
NMPDR fig|1148.1.peg.3122; -.
Phylogenomic databases
HOGENOM P74714; -.
Genome annotation databases
CMR P74714; slr1185.
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 1. PRO_0000127784
TRANSMEM   17    36  20     Potential. 
DOMAIN   61   161  101     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: 18685 Da [This is the MW of the unprocessed precursor] CRC64: 6AFF9F4195A61956 [This is a checksum on the sequence]
        10         20         30         40         50         60 
MDNTQAIAPP SYSRRQLLNF LAGTTVAVTA SAGAYAMGKF FVPPAEKGGA GGGIIAKDVL 

        70         80         90        100        110        120 
GNPIPASQIL AEAPGTRALV AGLAGDPTYL IVKEDGSLDS IGIVDSCTHL GCTFPWNGND 

       130        140        150        160        170 
QEFQCPCHGS RYHPDGSVAR GPAPLPLKIV QVAVVDDQIF ISPWTDLDPR TGEKPWWV 

P74714 in FASTA format

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