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Protein

Cytochrome b6-f complex subunit 5

Gene

petG

Organism
Chlamydomonas reinhardtii (Chlamydomonas smithii)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

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

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Electron transport, Photosynthesis, Transport

Enzyme and pathway databases

BioCyciCHLAMY:CHRECP045-MONOMER.
MetaCyc:CHRECP045-MONOMER.

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
Encoded oniPlastid; Chloroplast
OrganismiChlamydomonas reinhardtii (Chlamydomonas smithii)
Taxonomic identifieri3055 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeChlorophytaChlorophyceaeChlamydomonadalesChlamydomonadaceaeChlamydomonas
Proteomesi
  • UP000006906 Componenti: Chloroplast

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transmembranei5 – 25HelicalUniRule annotationAdd BLAST21

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Chloroplast, Membrane, Plastid, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002163761 – 37Cytochrome b6-f complex subunit 5Add BLAST37

Proteomic databases

PaxDbiQ08362.

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.

Protein-protein interaction databases

STRINGi3055.DAA00946.

Structurei

Secondary structure

137
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi4 – 29Combined sources26

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1Q90X-ray3.10G1-37[»]
ProteinModelPortaliQ08362.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiQ08362.

Family & Domainsi

Sequence similaritiesi

Belongs to the PetG family.UniRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiENOG410J681. Eukaryota.
ENOG410XUPY. LUCA.
InParanoidiQ08362.
KOiK02640.

Family and domain databases

HAMAPiMF_00432. Cytb6_f_PetG. 1 hit.
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.

Q08362-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30 
MVEPLLCGIV LGLVPVTIAG LFVTAYLQYL RGDLATY
Length:37
Mass (Da):3,984
Last modified:October 1, 1994 - v1
Checksum:iAC71B49852247A40
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti7C → L AA sequence (Ref. 4) Curated1

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural varianti30L → R in strain: CC-503. 1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X66250 Genomic DNA. Translation: CAA46979.1.
FJ423446 Genomic DNA. Translation: ACJ50132.1.
BK000554 Genomic DNA. Translation: DAA00946.1.
PIRiS26880.
RefSeqiNP_958401.1. NC_005353.1.

Genome annotation databases

EnsemblPlantsiDAA00946; DAA00946; DAA00946.
GeneIDi2716996.
GrameneiDAA00946; DAA00946; DAA00946.
KEGGicre:ChreCp045.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X66250 Genomic DNA. Translation: CAA46979.1.
FJ423446 Genomic DNA. Translation: ACJ50132.1.
BK000554 Genomic DNA. Translation: DAA00946.1.
PIRiS26880.
RefSeqiNP_958401.1. NC_005353.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1Q90X-ray3.10G1-37[»]
ProteinModelPortaliQ08362.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi3055.DAA00946.

Proteomic databases

PaxDbiQ08362.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsiDAA00946; DAA00946; DAA00946.
GeneIDi2716996.
GrameneiDAA00946; DAA00946; DAA00946.
KEGGicre:ChreCp045.

Phylogenomic databases

eggNOGiENOG410J681. Eukaryota.
ENOG410XUPY. LUCA.
InParanoidiQ08362.
KOiK02640.

Enzyme and pathway databases

BioCyciCHLAMY:CHRECP045-MONOMER.
MetaCyc:CHRECP045-MONOMER.

Miscellaneous databases

EvolutionaryTraceiQ08362.

Family and domain databases

HAMAPiMF_00432. Cytb6_f_PetG. 1 hit.
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...

Entry informationi

Entry nameiPETG_CHLRE
AccessioniPrimary (citable) accession number: Q08362
Secondary accession number(s): B7U1I5
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 1, 1994
Last sequence update: October 1, 1994
Last modified: October 5, 2016
This is version 97 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families

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 one 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.