Skip Header

Contribute Send feedback
Read comments (?) or add your own

P0C8N8 (UCRI_THEEB) Reviewed, UniProtKB/Swiss-Prot

Last modified May 1, 2013. Version 37. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Cytochrome b6-f complex iron-sulfur subunit
EC=1.10.9.1
Alternative name(s):
Plastohydroquinone:plastocyanin oxidoreductase iron-sulfur protein
Short name=ISP
Short name=RISP
Rieske iron-sulfur protein
Gene names
Name:petC
Ordered Locus Names:tlr0959
OrganismThermosynechococcus elongatus (strain BP-1) [Reference proteome] [HAMAP]
Taxonomic identifier197221 [NCBI]
Taxonomic lineageBacteria › Cyanobacteria › Oscillatoriophycideae › Chroococcales › Thermosynechococcus ›

Protein attributes

Sequence length180 AA.
Sequence statusComplete.
Protein existenceEvidence at protein level

General annotation (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. HAMAP-Rule MF_01335

Catalytic activity

Plastoquinol + 2 oxidized plastocyanin + 2 H+(Side 1) = plastoquinone + 2 reduced plastocyanin + 2 H+(Side 2). HAMAP-Rule MF_01335

Cofactor

Binds 1 2Fe-2S cluster per subunit By similarity.

Subunit structure

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. HAMAP-Rule MF_01335

Miscellaneous

The Rieske iron-sulfur protein is a high potential 2Fe-2S protein. HAMAP-Rule MF_01335

Sequence similarities

Contains 1 Rieske domain.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 180180Cytochrome b6-f complex iron-sulfur subunit HAMAP-Rule MF_01335
PRO_0000361773

Regions

Transmembrane21 – 4323Helical; Potential
Domain66 – 16297Rieske

Sites

Metal binding1081Iron-sulfur (2Fe-2S) By similarity
Metal binding1101Iron-sulfur (2Fe-2S); via pros nitrogen By similarity
Metal binding1261Iron-sulfur (2Fe-2S) By similarity
Metal binding1291Iron-sulfur (2Fe-2S); via pros nitrogen By similarity

Amino acid modifications

Disulfide bond113 ↔ 128 By similarity

Secondary structure

1 ............................ 180
Helix Strand Turn

Details...

Sequences

Sequence LengthMass (Da)Tools
P0C8N8 [UniParc].

Last modified February 10, 2009. Version 1.
Checksum: EBB4352DB5DAB6B7

FASTA18019,316
        10         20         30         40         50         60 
MAQVSGMSDV PDMGRRQFMN LLTFGTITGT ALGALYPVVK YFIPPASGGT GGGAVAKDAL 

        70         80         90        100        110        120 
GNDIKVSEYL AKHLPGDRSL AQGIKGDPTY VIVTEDHQIA NYGLNAVCTH LGCVVPWNVS 

       130        140        150        160        170        180 
ENKFICPCHG SQYDSTGKVV RGPAPLSLAL VKATVTEDDK LVFTPWTEID FRTGKEPWWT

« Hide

References

[1]"Complete genome structure of the thermophilic cyanobacterium Thermosynechococcus elongatus BP-1."
Nakamura Y., Kaneko T., Sato S., Ikeuchi M., Katoh H., Sasamoto S., Watanabe A., Iriguchi M., Kawashima K., Kimura T., Kishida Y., Kiyokawa C., Kohara M., Matsumoto M., Matsuno A., Nakazaki N., Shimpo S., Sugimoto M. expand/collapse author list , Takeuchi C., Yamada M., Tabata S.
DNA Res. 9:123-130(2002) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: BP-1.
+Additional computationally mapped references.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ		BA000039 Genomic DNA. Translation: BAC08511.1.
RefSeqNP_681749.1. NC_004113.1.

3D structure databases

PDBe
RCSB PDB
PDBj
EntryMethodResolution (Å)ChainPositionsPDBsum
3AZCX-ray2.00A54-180[»]
ProteinModelPortalP0C8N8.
SMRP0C8N8. Positions 9-179.
ModBaseSearch...

Protein-protein interaction databases

STRING197221.tlr0959.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaBAC08511; BAC08511; BAC08511.
GeneID1011363.
KEGGtel:tlr0959.
PATRIC23927212. VBITheElo119873_1006.

Phylogenomic databases

eggNOGCOG0723.
HOGENOMHOG000255192.
KOK02636.
OMAGDPTYIV.
ProtClustDBPRK13474.

Family and domain databases

Gene3D2.102.10.10. 1 hit.
HAMAPMF_01335. Cytb6_f_Rieske.
InterProIPR014909. Cyt_b6-f_cplx_Fe-S_su.
IPR023960. Cyt_b6_f_Rieske.
IPR017941. Rieske_2Fe-2S.
IPR014349. Rieske_Fe-S_prot.
IPR005805. Rieske_Fe-S_prot_C.
[Graphical view]
PANTHERPTHR10134. PTHR10134. 1 hit.
PfamPF08802. CytB6-F_Fe-S. 1 hit.
PF00355. Rieske. 1 hit.
[Graphical view]
PRINTSPR00162. RIESKE.
SUPFAMSSF50022. Rieske_dom. 1 hit.
PROSITEPS51296. RIESKE. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameUCRI_THEEB
AccessionPrimary (citable) accession number: P0C8N8
Secondary accession number(s): Q79V50, Q9X9T2
Entry history
Integrated into UniProtKB/Swiss-Prot: February 10, 2009
Last sequence update: February 10, 2009
Last modified: May 1, 2013
This is version 37 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

PDB cross-references

Index of Protein Data Bank (PDB) cross-references

SIMILARITY comments

Index of protein domains and families

to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·Documents