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Protein

Cytochrome b6-f complex subunit 5

Gene

petG

Organism
Synechocystis sp. (strain PCC 6803 / Kazusa)
Status
Reviewed-Annotation score: 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. PetG is required for either the stability or assembly of the cytochrome b6-f complex.UniRule annotation

GO - Molecular functioni

  1. electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity Source: UniProtKB-HAMAP

GO - Biological processi

  1. cytochrome complex assembly Source: UniProtKB-HAMAP
  2. oxidation-reduction process Source: UniProtKB-HAMAP
  3. photosynthesis Source: UniProtKB-KW
Complete GO annotation...

Keywords - Biological processi

Electron transport, Photosynthesis, Transport

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome b6-f complex subunit 5UniRule annotation
Alternative name(s):
Cytochrome b6-f complex subunit PetGUniRule annotation
Cytochrome b6-f complex subunit VUniRule annotation
Gene namesi
Name:petGUniRule annotation
Ordered Locus Names:smr0010
OrganismiSynechocystis sp. (strain PCC 6803 / Kazusa)
Taxonomic identifieri1111708 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaOscillatoriophycideaeChroococcalesSynechocystis
ProteomesiUP000001425: Chromosome

Subcellular locationi

Cellular thylakoid membrane UniRule annotation; Single-pass membrane protein UniRule annotation

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei5 – 2521HelicalUniRule annotationAdd
BLAST

GO - Cellular componenti

  1. cytochrome b6f complex Source: InterPro
  2. integral component of membrane Source: UniProtKB-KW
  3. thylakoid membrane Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Membrane, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 3838Cytochrome b6-f complex subunit 5PRO_0000216418Add
BLAST

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.UniRule annotation

Protein-protein interaction databases

IntActiP74149. 6 interactions.
STRINGi1148.smr0010.

Structurei

3D structure databases

ProteinModelPortaliP74149.
SMRiP74149. Positions 1-30.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the PetG family.UniRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiNOG09641.
HOGENOMiHOG000252903.
InParanoidiP74149.
KOiK02640.
OrthoDBiEOG6H1QBF.

Family and domain databases

HAMAPiMF_00432. Cytb6_f_PetG.
InterProiIPR003683. Cyt_6/f_cplx_su5.
[Graphical view]
PfamiPF02529. PetG. 1 hit.
[Graphical view]
PIRSFiPIRSF000034. Cyt_b6-f_V. 1 hit.
SUPFAMiSSF103446. SSF103446. 1 hit.

Sequencei

Sequence statusi: Complete.

P74149-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30 
MIEPLLLGIV LGLIPVTLAG LFVAAYLQYK RGNQFNLD
Length:38
Mass (Da):4,175
Last modified:February 1, 1997 - v1
Checksum:i87CA6B508CA25FE4
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000022 Genomic DNA. Translation: BAA18236.1.
PIRiS75675.
RefSeqiNP_441556.1. NC_000911.1.
YP_005651614.1. NC_017277.1.
YP_007451438.1. NC_020286.1.

Genome annotation databases

EnsemblBacteriaiBAA18236; BAA18236; BAA18236.
GeneIDi953102.
KEGGisyn:smr0010.
PATRICi23840539. VBISynSp132158_1826.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000022 Genomic DNA. Translation: BAA18236.1.
PIRiS75675.
RefSeqiNP_441556.1. NC_000911.1.
YP_005651614.1. NC_017277.1.
YP_007451438.1. NC_020286.1.

3D structure databases

ProteinModelPortaliP74149.
SMRiP74149. Positions 1-30.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

IntActiP74149. 6 interactions.
STRINGi1148.smr0010.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAA18236; BAA18236; BAA18236.
GeneIDi953102.
KEGGisyn:smr0010.
PATRICi23840539. VBISynSp132158_1826.

Phylogenomic databases

eggNOGiNOG09641.
HOGENOMiHOG000252903.
InParanoidiP74149.
KOiK02640.
OrthoDBiEOG6H1QBF.

Family and domain databases

HAMAPiMF_00432. Cytb6_f_PetG.
InterProiIPR003683. Cyt_6/f_cplx_su5.
[Graphical view]
PfamiPF02529. PetG. 1 hit.
[Graphical view]
PIRSFiPIRSF000034. Cyt_b6-f_V. 1 hit.
SUPFAMiSSF103446. SSF103446. 1 hit.
ProtoNetiSearch...

Publicationsi

  1. "Sequence analysis of the genome of the unicellular cyanobacterium Synechocystis sp. strain PCC6803. II. Sequence determination of the entire genome and assignment of potential protein-coding regions."
    Kaneko T., Sato S., Kotani H., Tanaka A., Asamizu E., Nakamura Y., Miyajima N., Hirosawa M., Sugiura M., Sasamoto S., Kimura T., Hosouchi T., Matsuno A., Muraki A., Nakazaki N., Naruo K., Okumura S., Shimpo S.
    , Takeuchi C., Wada T., Watanabe A., Yamada M., Yasuda M., Tabata S.
    DNA Res. 3:109-136(1996) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: PCC 6803 / Kazusa.

Entry informationi

Entry nameiPETG_SYNY3
AccessioniPrimary (citable) accession number: P74149
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 29, 2001
Last sequence update: February 1, 1997
Last modified: January 7, 2015
This is version 88 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Synechocystis PCC 6803
    Synechocystis (strain PCC 6803): entries and gene names

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.