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Q2JUP1 (UCRI_SYNJA) Reviewed, UniProtKB/Swiss-Prot

Last modified May 1, 2013. Version 60. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (1) | Third-party data text xml rdf/xml gff fasta
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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:CYA_1403
OrganismSynechococcus sp. (strain JA-3-3Ab) (Cyanobacteria bacterium Yellowstone A-Prime) [Complete proteome] [HAMAP]
Taxonomic identifier321327 [NCBI]
Taxonomic lineageBacteria › Cyanobacteria › Oscillatoriophycideae › Chroococcales › Synechococcus

Protein attributes

Sequence length172 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-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 – 172172Cytochrome b6-f complex iron-sulfur subunit HAMAP-Rule MF_01335
PRO_0000298466

Regions

Transmembrane17 – 3923Helical; Potential
Domain61 – 161101Rieske

Sites

Metal binding1071Iron-sulfur (2Fe-2S) By similarity
Metal binding1091Iron-sulfur (2Fe-2S); via pros nitrogen By similarity
Metal binding1251Iron-sulfur (2Fe-2S) By similarity
Metal binding1281Iron-sulfur (2Fe-2S); via pros nitrogen By similarity

Amino acid modifications

Disulfide bond112 ↔ 127 By similarity

Sequences

Sequence LengthMass (Da)Tools
Q2JUP1 [UniParc].

Last modified March 7, 2006. Version 1.
Checksum: 4D9D8386125718FB

FASTA17217,983
        10         20         30         40         50         60 
MTEAVSNFEA PPMSRRVFLN ALLSSSVGVV VVGTLYPVVK YFIPPSSGGA GEGVIAQDAL 

        70         80         90        100        110        120 
GKPISVSELL ATHAATDRVL AQGLKGDPTY IVIDNGAVAN YGLNAVCTHL GCVVPWNAGE 

       130        140        150        160        170 
NLFKCPCHGS QYAANGKVIR GPAPRSLELV SATVDGDNVR FSPWQGPDFR EA

« Hide

References

[1]"Population level functional diversity in a microbial community revealed by comparative genomic and metagenomic analyses."
Bhaya D., Grossman A.R., Steunou A.-S., Khuri N., Cohan F.M., Hamamura N., Melendrez M.C., Bateson M.M., Ward D.M., Heidelberg J.F.
ISME J. 1:703-713(2007) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: JA-3-3Ab.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ		CP000239 Genomic DNA. Translation: ABC99573.1.
RefSeqYP_474836.1. NC_007775.1.

3D structure databases

ProteinModelPortalQ2JUP1.
SMRQ2JUP1. Positions 9-170.
ModBaseSearch...

Protein-protein interaction databases

STRING321327.CYA_1403.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABC99573; ABC99573; CYA_1403.
GeneID3899839.
KEGGcya:CYA_1403.
PATRIC23811100. VBISynSp90045_1397.

Organism-specific databases

CMRSearch...

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_SYNJA
AccessionPrimary (citable) accession number: Q2JUP1
Entry history
Integrated into UniProtKB/Swiss-Prot: August 21, 2007
Last sequence update: March 7, 2006
Last modified: May 1, 2013
This is version 60 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

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