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Q9F722 (UCRI_CHLTE) Reviewed, UniProtKB/Swiss-Prot

Last modified June 11, 2014. Version 104. 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

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
Rieske iron-sulfur protein
Short name=ISP
Short name=RISP
Gene names
Name:petC
Ordered Locus Names:CT0302
OrganismChlorobium tepidum (strain ATCC 49652 / DSM 12025 / TLS) [Reference proteome] [HAMAP]
Taxonomic identifier194439 [NCBI]
Taxonomic lineageBacteriaChlorobiChlorobiaChlorobialesChlorobiaceaeChlorobaculum

Protein attributes

Sequence length181 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
Protein existenceInferred from homology

General annotation (Comments)

Function

Component of the green S-bacteria bc-complex which consists of the Rieske protein and cytochrome b subunit and which appears to lack a cytochrome c1-equivalent. This complex has a comparatively low redox potential.

Catalytic activity

Plastoquinol + 2 oxidized plastocyanin + 2 H+(Side 1) = plastoquinone + 2 reduced plastocyanin + 4 H+(Side 2).

Cofactor

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

Subcellular location

Cell membrane; Multi-pass membrane protein Potential.

Miscellaneous

The Rieske protein is a high potential 2Fe-2S protein.

Sequence similarities

Contains 1 Rieske domain.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Initiator methionine11Removed By similarity
Chain2 – 181180Cytochrome b6-f complex iron-sulfur subunit
PRO_0000127773

Regions

Transmembrane53 – 7321Helical; Potential
Transmembrane114 – 13421Helical; Potential
Domain85 – 17894Rieske

Sites

Metal binding1241Iron-sulfur (2Fe-2S) By similarity
Metal binding1261Iron-sulfur (2Fe-2S); via pros nitrogen By similarity
Metal binding1421Iron-sulfur (2Fe-2S) By similarity
Metal binding1451Iron-sulfur (2Fe-2S); via pros nitrogen By similarity

Amino acid modifications

Disulfide bond129 ↔ 144 By similarity

Experimental info

Sequence conflict681V → F in AAG12194. Ref.1
Sequence conflict1501T → R in AAG12194. Ref.1

Sequences

Sequence LengthMass (Da)Tools
Q9F722 [UniParc].

Last modified January 23, 2007. Version 4.
Checksum: 487FB49275EC289B

FASTA18118,864
        10         20         30         40         50         60 
MAQTGNFKSP ARMSSLGQGA APASAGAVTG GKPREEGLKG VDFERRGFLQ KIVGGVGAVV 

        70         80         90        100        110        120 
AVSTLYPVVR YIVPPAKKIK IVNELAVGPA SDVPNGTGKI YQFNDDKVIV VNHGGSLTAV 

       130        140        150        160        170        180 
SAICTHLGCL VHWDEAADMI ACPCHGAKYT QDGKIISGPQ PLPLKQYKVK IEDGKIVVSI 


A 

« Hide

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
AF287480 Genomic DNA. Translation: AAG12194.1.
AE006470 Genomic DNA. Translation: AAM71548.1.
RefSeqNP_661206.1. NC_002932.3.

3D structure databases

ProteinModelPortalQ9F722.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING194439.CT0302.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaAAM71548; AAM71548; CT0302.
GeneID1007962.
KEGGcte:CT0302.
PATRIC21398719. VBIChlTep116050_0292.

Phylogenomic databases

eggNOGCOG0723.
HOGENOMHOG000148904.
KOK02636.
OMAVPENTGK.
OrthoDBEOG6S52N7.

Enzyme and pathway databases

BioCycCTEP194439:GHN0-319-MONOMER.

Family and domain databases

Gene3D2.102.10.10. 1 hit.
InterProIPR014909. Cyt_b6-f_cplx_Fe-S_su.
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. SSF50022. 1 hit.
PROSITEPS51296. RIESKE. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameUCRI_CHLTE
AccessionPrimary (citable) accession number: Q9F722
Entry history
Integrated into UniProtKB/Swiss-Prot: April 27, 2001
Last sequence update: January 23, 2007
Last modified: June 11, 2014
This is version 104 of the entry and version 4 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