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B8HNR1

- UCRI_CYAP4

UniProt

B8HNR1 - UCRI_CYAP4

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Protein

Cytochrome b6-f complex iron-sulfur subunit

Gene
petC, Cyan7425_1419
Organism
Cyanothece sp. (strain PCC 7425 / ATCC 29141)
Status
Reviewed - Annotation score: 3 out of 5 - Protein inferred from homologyi

Functioni

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.UniRule annotation

Catalytic activityi

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

Cofactori

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

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi108 – 1081Iron-sulfur (2Fe-2S) By similarity
Metal bindingi110 – 1101Iron-sulfur (2Fe-2S); via pros nitrogen By similarity
Metal bindingi126 – 1261Iron-sulfur (2Fe-2S) By similarity
Metal bindingi129 – 1291Iron-sulfur (2Fe-2S); via pros nitrogen By similarity

GO - Molecular functioni

  1. 2 iron, 2 sulfur cluster binding Source: UniProtKB-KW
  2. electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity Source: UniProtKB-HAMAP
  3. metal ion binding Source: UniProtKB-KW
  4. plastoquinol--plastocyanin reductase activity Source: UniProtKB-HAMAP
  5. ubiquinol-cytochrome-c reductase activity Source: InterPro

GO - Biological processi

  1. photosynthesis Source: UniProtKB-HAMAP
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Electron transport, Transport

Keywords - Ligandi

2Fe-2S, Iron, Iron-sulfur, Metal-binding

Enzyme and pathway databases

BioCyciCSP395961:GJDE-1236-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended 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 namesi
Name:petC
Ordered Locus Names:Cyan7425_1419
OrganismiCyanothece sp. (strain PCC 7425 / ATCC 29141)
Taxonomic identifieri395961 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaOscillatoriophycideaeChroococcalesCyanothece
ProteomesiUP000002511: Chromosome

Subcellular locationi

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.UniRule annotation

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei21 – 4323Helical; Reviewed predictionAdd
BLAST

GO - Cellular componenti

  1. integral component of membrane Source: UniProtKB-KW
  2. thylakoid membrane Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Membrane, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 179179Cytochrome b6-f complex iron-sulfur subunitUniRule annotationPRO_1000166187Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Disulfide bondi113 ↔ 128 By similarity

Keywords - PTMi

Disulfide bond

Interactioni

Subunit structurei

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.

Protein-protein interaction databases

STRINGi395961.Cyan7425_1419.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini61 – 162102RieskeAdd
BLAST

Sequence similaritiesi

Contains 1 Rieske domain.

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiCOG0723.
HOGENOMiHOG000255192.
KOiK02636.
OMAiPWTETDF.
OrthoDBiEOG6S52N7.

Family and domain databases

Gene3Di2.102.10.10. 1 hit.
HAMAPiMF_01335. Cytb6_f_Rieske.
InterProiIPR014909. 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]
PANTHERiPTHR10134. PTHR10134. 1 hit.
PfamiPF08802. CytB6-F_Fe-S. 1 hit.
PF00355. Rieske. 1 hit.
[Graphical view]
PRINTSiPR00162. RIESKE.
SUPFAMiSSF50022. SSF50022. 1 hit.
PROSITEiPS51296. RIESKE. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

B8HNR1-1 [UniParc]FASTAAdd to Basket

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MAQLSGTPDV PDMGRRQFMN LLTFGSATGV ALGMLYPVVR YFIPPASGGV    50
GGGVVAKDAL GNDISVSDFL AKHPANDRAL AQGLKGDPTY IVVQDDHTIG 100
DYGLNAVCTH LGCVVPWNIS ENKFICPCHG SQYDNTGKVV RGPAPLSLAL 150
AHAAVSDDKI TFTPWTETDF RTGKEPWWT 179
Length:179
Mass (Da):19,106
Last modified:March 3, 2009 - v1
Checksum:iCEB4DCD0AFFCD158
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP001344 Genomic DNA. Translation: ACL43792.1.
RefSeqiWP_012626883.1. NC_011884.1.
YP_002482153.1. NC_011884.1.

Genome annotation databases

EnsemblBacteriaiACL43792; ACL43792; Cyan7425_1419.
GeneIDi7287340.
KEGGicyn:Cyan7425_1419.
PATRICi21563779. VBICyaSp30657_1412.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP001344 Genomic DNA. Translation: ACL43792.1 .
RefSeqi WP_012626883.1. NC_011884.1.
YP_002482153.1. NC_011884.1.

3D structure databases

ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 395961.Cyan7425_1419.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai ACL43792 ; ACL43792 ; Cyan7425_1419 .
GeneIDi 7287340.
KEGGi cyn:Cyan7425_1419.
PATRICi 21563779. VBICyaSp30657_1412.

Phylogenomic databases

eggNOGi COG0723.
HOGENOMi HOG000255192.
KOi K02636.
OMAi PWTETDF.
OrthoDBi EOG6S52N7.

Enzyme and pathway databases

BioCyci CSP395961:GJDE-1236-MONOMER.

Family and domain databases

Gene3Di 2.102.10.10. 1 hit.
HAMAPi MF_01335. Cytb6_f_Rieske.
InterProi IPR014909. 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 ]
PANTHERi PTHR10134. PTHR10134. 1 hit.
Pfami PF08802. CytB6-F_Fe-S. 1 hit.
PF00355. Rieske. 1 hit.
[Graphical view ]
PRINTSi PR00162. RIESKE.
SUPFAMi SSF50022. SSF50022. 1 hit.
PROSITEi PS51296. RIESKE. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Novel metabolic attributes of the genus Cyanothece, comprising a group of unicellular nitrogen-fixing Cyanobacteria."
    Bandyopadhyay A., Elvitigala T., Welsh E., Stockel J., Liberton M., Min H., Sherman L.A., Pakrasi H.B.
    MBio 2:E214-E214(2011) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: PCC 7425 / ATCC 29141.

Entry informationi

Entry nameiUCRI_CYAP4
AccessioniPrimary (citable) accession number: B8HNR1
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: March 3, 2009
Last modified: September 3, 2014
This is version 43 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Miscellaneous

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

Keywords - Technical termi

Complete proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi