Skip Header

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

Q114L6 (UCRI_TRIEI) Reviewed, UniProtKB/Swiss-Prot

Last modified January 25, 2012. Version 51. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (1) | 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=1.10.99.1
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:Tery_1799
OrganismTrichodesmium erythraeum (strain IMS101) [Complete proteome] [HAMAP]
Taxonomic identifier203124 [NCBI]
Taxonomic lineageBacteria › Cyanobacteria › Oscillatoriales › Trichodesmium

Protein attributes

Sequence length179 AA.
Sequence statusComplete.
Protein existenceInferred from homology

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 MF_01335

Catalytic activity

Plastoquinol-1 + 2 oxidized plastocyanin = plastoquinone + 2 reduced plastocyanin. HAMAP MF_01335

Cofactor

Binds 1 2Fe-2S cluster per subunit By similarity. HAMAP MF_01335

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 MF_01335

Miscellaneous

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

Sequence similarities

Contains 1 Rieske domain.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 179179Cytochrome b6-f complex iron-sulfur subunit HAMAP MF_01335
PRO_0000298469

Regions

Transmembrane21 – 4323Helical; Potential
Domain61 – 162102Rieske

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

Sequences

Sequence LengthMass (Da)Tools
Q114L6 [UniParc].

Last modified August 22, 2006. Version 1.
Checksum: 572CE261AE78F317

FASTA17919,116
        10         20         30         40         50         60 
MAQAEGTPDV PSMGRRQFMN LLTFGTVTGV ALGALYPVVN YFIPPSSGGS GGGVTAKDAL 

        70         80         90        100        110        120 
GNDIIVSEFL ANHNSGERTL AQGLKGDPTY VVIEGEQTLA EYGLNAVCTH LGCVVPWNGS 

       130        140        150        160        170 
ENKFICPCHG SQYDNTGKVV RGPAPLSLAL VHANVSDDKL VFTQWEETDF RTGEKPWWV

« Hide

References

[1]"Complete sequence of Trichodesmium erythraeum IMS101."
Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S., Kiss H., Munk A.C., Brettin T., Bruce D., Han C., Tapia R., Gilna P. expand/collapse author list , Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Kim E., Richardson P.
Submitted (JUN-2006) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: IMS101.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ		CP000393 Genomic DNA. Translation: ABG51058.1.
RefSeqYP_721531.1. NC_008312.1.

3D structure databases

ProteinModelPortalQ114L6.
SMRQ114L6. Positions 9-179.
ModBaseSearch...

Protein-protein interaction databases

STRINGQ114L6.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

GeneID4243781.
GenomeReviewsGene locus Tery_1799 in contig CP000393_GR.
KEGGter:Tery_1799.
NMPDRfig|203124.1.peg.418.
PATRIC23987691. VBITriEry99848_2281.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0723.
HOGENOMHBG668715.
OMAYPVANYF.
PhylomeDBQ114L6.
ProtClustDBPRK13474.

Enzyme and pathway databases

BioCycTERY203124:TERY_1799-MONOMER.

Family and domain databases

HAMAPMF_01335. Cytb6_f_Rieske.
[Tree]
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]
Gene3DG3DSA:2.102.10.10. Rieske_reg. 1 hit.
KOK02636.
PANTHERPTHR10134. Rieske. 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_TRIEI
AccessionPrimary (citable) accession number: Q114L6
Entry history
Integrated into UniProtKB/Swiss-Prot: August 21, 2007
Last sequence update: August 22, 2006
Last modified: January 25, 2012
This is version 51 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

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