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UniProtKB/Swiss-Prot entry P49728


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

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Entry information
Entry name UCRIA_CHLRE
Primary accession number P49728
Secondary accession numbers None
Integrated into Swiss-Prot on October 1, 1996
Sequence was last modified on October 1, 1996 (Sequence version 1)
Annotations were last modified on    July 22, 2008 (Entry version 61)
Name and origin of the protein
Protein name Cytochrome b6-f complex iron-sulfur subunit, chloroplastic [Precursor]
Synonyms EC 1.10.99.1
Rieske iron-sulfur protein
RISP
ISP
Plastohydroquinone:plastocyanin oxidoreductase iron-sulfur protein
Gene name
Name: petC
From
Chlamydomonas reinhardtii [TaxID: 3055] 
Taxonomy Eukaryota; Viridiplantae; Chlorophyta; Chlorophyceae; Chlamydomonadales; Chlamydomonadaceae; Chlamydomonas.
Protein existence 1: Evidence at protein level;
References
[1]
NUCLEOTIDE SEQUENCE [GENOMIC DNA].
STRAIN=cw15;
PubMed=8125984 [NCBI, ExPASy, EBI, Israel, Japan]
de Vitry C.;
"Characterization of the gene of the chloroplast Rieske iron-sulfur protein in Chlamydomonas reinhardtii. Indications for an uncleaved lumen targeting sequence.";
J. Biol. Chem. 269:7603-7609(1994).
[2]
NUCLEOTIDE SEQUENCE.
STRAIN=2137;
Takahashi Y., Kataoka S., Matsubara H., Malkin R.;
"A cDNA encoding chloroplast Rieske protein from Chlamydomonas reinhardtii.";
Submitted (SEP-1997) to the EMBL/GenBank/DDBJ databases.
[3]
PROTEIN SEQUENCE OF 30-56 AND 168-186, AND CHARACTERIZATION.
STRAIN=WT12;
DOI=10.1074/jbc.270.49.29342; PubMed=7493968 [NCBI, ExPASy, EBI, Israel, Japan]
Pierre Y., Breyton C., Kramer D., Popot J.-L.;
"Purification and characterization of the cytochrome b6 f complex from Chlamydomonas reinhardtii.";
J. Biol. Chem. 270:29342-29349(1995).
[4]
X-RAY CRYSTALLOGRAPHY (3.1 ANGSTROMS) OF 31-206.
DOI=10.1038/nature02155; PubMed=14647374 [NCBI, ExPASy, EBI, Israel, Japan]
Stroebel D., Choquet Y., Popot J.-L., Picot D.;
"An atypical haem in the cytochrome b(6)f complex.";
Nature 426:413-418(2003).
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.
  • CATALYTIC ACTIVITY: Plastoquinol-1 + 2 oxidized plastocyanin = plastoquinone + 2 reduced plastocyanin.
  • COFACTOR: Binds 1 2Fe-2S cluster per subunit.
  • 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.
  • SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane; Single-pass membrane protein. Note=The transmembrane helix obliquely spans the membrane in one monomer, and its extrinsic C-terminal domain is part of the other monomer.
  • MISCELLANEOUS: This protein is 1 of 2 subunits of the cytochrome b6-f complex that are encoded in the nucleus.
  • 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
X76299; CAA53947.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
D32003; BAA22147.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
PIR A53412; A53412.
RefSeq XP_001698786.1; -.
UniGene Cre.13203
3D structure databases
PDB
1Q90; X-ray; 3.10 A; C=80-206, R=31-79.[ExPASy / RCSB / EBI]
PDBsum 1Q90; -.
ModBase P49728.
Ontologies
GO
GO:0009496; Molecular function: plastoquinol-plastocyanin reductase activity (inferred from electronic annotation from EC).
QuickGo view.
Family and domain databases
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 P49728.
Genome annotation databases
GeneID 5724296; -.
KEGG cre:CHLREDRAFT_193296; -.
Other
ProtoNet P49728.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
2Fe-2S; 3D-structure; Chloroplast; Direct protein sequencing; Electron transport; Iron; Iron-sulfur; Membrane; Metal-binding; Oxidoreductase; Plastid; Thylakoid; Transit peptide; Transmembrane; Transport.
Features
SEVIEWER logo Feature table viewer FT aligner logo Feature aligner
KeyFrom   To Length Description FTId
TRANSIT   1    29  29     Chloroplast. 
CHAIN   30   206  177     Cytochrome b6-f complex iron-sulfur subunit, chloroplastic. PRO_0000030685
TRANSMEM   39    68  30      
DOMAIN   92   188  97     Rieske. 
COMPBIAS   29    32  4     Poly-Ala. 
COMPBIAS   74    79  6     Poly-Gly. 
METAL   134   134        Iron-sulfur (2Fe-2S). 
METAL   136   136        Iron-sulfur (2Fe-2S) (via pros nitrogen). 
METAL   152   152        Iron-sulfur (2Fe-2S). 
METAL   155   155        Iron-sulfur (2Fe-2S) (via pros nitrogen). 
DISULFID   139   154         
HELIX   39    68  30      
HELIX   92    98  7      
HELIX   110   112  3      
STRAND   114   119  6      
STRAND   123   125  3      
STRAND   127   131  5      
TURN   135   137  3      
TURN   145   148  4      
STRAND   149   151  3      
TURN   153   155  3      
STRAND   158   160  3      
STRAND   165   169  5      
STRAND   176   180  5      
STRAND   188   191  4      
TURN   197   199  3      
Sequence information
Length: 206 AA [This is the length of the unprocessed precursor] Molecular weight: 21526 Da [This is the MW of the unprocessed precursor] CRC64: 7B2C2118E9F75974 [This is a checksum on the sequence]
        10         20         30         40         50         60 
MAMLSSRRVA APAKASAIRR SRVMPVVRAA AASSEVPDMN KRNIMNLILA GGAGLPITTL 

        70         80         90        100        110        120 
ALGYGAFFVP PSSGGGGGGQ AAKDALGNDI KAGEWLKTHL AGDRSLSQGL KGDPTYLIVT 

       130        140        150        160        170        180 
ADSTIEKYGL NAVCTHLGCV VPWVAAENKF KCPCHGSQYN AEGKVVRGPA PLSLALAHCD 

       190        200 
VAESGLVTFS TWTETDFRTG LEPWWA 

P49728 in FASTA format

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