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UniProtKB/Swiss-Prot entry A3PBI5


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

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Entry information
Entry name UCRI_PROM0
Primary accession number A3PBI5
Secondary accession numbers None
Integrated into Swiss-Prot on August 21, 2007
Sequence was last modified on April 3, 2007 (Sequence version 1)
Annotations were last modified on    September 2, 2008 (Entry version 15)
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: P9301_04871
From
Prochlorococcus marinus (strain MIT 9301) [TaxID: 167546] [HAMAP proteome]
Taxonomy Bacteria; Cyanobacteria; Prochlorales; Prochlorococcaceae; Prochlorococcus.
Protein existence 3: Inferred from homology;
References
[1]
NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
DOI=10.1371/journal.pgen.0030231; PubMed=18159947 [NCBI, ExPASy, EBI, Israel, Japan]
Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S., Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M., Richardson P., Chisholm S.W.;
"Patterns and implications of gene gain and loss in the evolution of Prochlorococcus.";
PLoS Genet. 3:2515-2528(2007).
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
CP000576; ABO17110.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
RefSeq YP_001090711.1; -.
3D structure databases
ModBase A3PBI5.
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.
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 A3PBI5.
Genome annotation databases
GeneID 4912628; -.
GenomeReviews CP000576_GR; P9301_04871.
KEGG pmg:P9301_04871; -.
CMR A3PBI5; P9301_04871.
Other
ProtoNet A3PBI5.
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_0000298456
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: 18980 Da [This is the MW of the unprocessed precursor] CRC64: DDFEF528EA2CF28A [This is a checksum on the sequence]
        10         20         30         40         50         60 
MTQLSSNDVP SMGRRQFMNL LTFGTATGVA LGALYPVANY FMPLRAGGGG GGTSAKDELG 

        70         80         90        100        110        120 
NPITKTGWLA THQAGDRSLV QGLKGDPTYL IVNEVGEIGE FGLNAICTHL GCVVPWDSGA 

       130        140        150        160        170 
NKFICPCHGS QYDTNGKVVR GPAPLSLALA HVDIEDDAVL VKQWSETDFR TNENPWWA 

A3PBI5 in FASTA format

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