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Q08362 (PETG_CHLRE) Reviewed, UniProtKB/Swiss-Prot

Last modified May 14, 2014. Version 84. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
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Names and origin

Protein namesRecommended name:
Cytochrome b6-f complex subunit 5
Alternative name(s):
Cytochrome b6-f complex subunit PetG
Cytochrome b6-f complex subunit V
Gene names
Name:petG
Encoded onPlastid; Chloroplast
OrganismChlamydomonas reinhardtii (Chlamydomonas smithii) [Reference proteome]
Taxonomic identifier3055 [NCBI]
Taxonomic lineageEukaryotaViridiplantaeChlorophytaChlorophyceaeChlamydomonadalesChlamydomonadaceaeChlamydomonas

Protein attributes

Sequence length37 AA.
Sequence statusComplete.
Protein existenceEvidence at protein level

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. PetG is required for either the stability or assembly of the cytochrome b6-f complex By similarity. HAMAP-Rule MF_00432

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.

Subcellular location

Plastidchloroplast thylakoid membrane; Single-pass membrane protein HAMAP-Rule MF_00432.

Sequence similarities

Belongs to the PetG family.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 3737Cytochrome b6-f complex subunit 5 HAMAP-Rule MF_00432
PRO_0000216376

Regions

Transmembrane5 – 2521Helical; Potential

Natural variations

Natural variant301L → R in strain: CC-503.

Experimental info

Sequence conflict71C → L AA sequence Ref.4

Secondary structure

... 37
Helix Strand Turn

Details...

Sequences

Sequence LengthMass (Da)Tools
Q08362 [UniParc].

Last modified October 1, 1994. Version 1.
Checksum: AC71B49852247A40

FASTA373,984
        10         20         30 
MVEPLLCGIV LGLVPVTIAG LFVTAYLQYL RGDLATY 

« Hide

References

« Hide 'large scale' references
[1]"Organization and structure of plastome psbF, psbL, petG and ORF712 genes in Chlamydomonas reinhardtii."
Fong S.E., Surzycki S.J.
Curr. Genet. 21:527-530(1992) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
[2]"The deletion of petG in Chlamydomonas reinhardtii disrupts the cytochrome bf complex."
Berthold D.A., Schmidt C.L., Malkin R.
J. Biol. Chem. 270:29293-29298(1995) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], CHARACTERIZATION.
Strain: 137c / CC-125.
[3]"Nucleotide diversity of the Chlamydomonas reinhardtii plastid genome: addressing the mutational-hazard hypothesis."
Smith D.R., Lee R.W.
BMC Evol. Biol. 9:120-120(2009) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: CC-503.
[4]"Low molecular weight subunits associated with the cytochrome b6f complexes from spinach and Chlamydomonas reinhardtii."
Schmidt C.L., Malkin R.
Photosyn. Res. 38:73-81(1993)
Cited for: PROTEIN SEQUENCE OF 1-15.
Strain: CC-124.
[5]"The Chlamydomonas reinhardtii plastid chromosome: islands of genes in a sea of repeats."
Maul J.E., Lilly J.W., Cui L., dePamphilis C.W., Miller W., Harris E.H., Stern D.B.
Plant Cell 14:2659-2679(2002) [PubMed] [Europe PMC] [Abstract]
Cited for: IDENTIFICATION, COMPLETE PLASTID GENOME.
[6]"Purification and characterization of the cytochrome b6 f complex from Chlamydomonas reinhardtii."
Pierre Y., Breyton C., Kramer D., Popot J.-L.
J. Biol. Chem. 270:29342-29349(1995) [PubMed] [Europe PMC] [Abstract]
Cited for: CHARACTERIZATION.
Strain: WT12.
[7]"An atypical haem in the cytochrome b(6)f complex."
Stroebel D., Choquet Y., Popot J.-L., Picot D.
Nature 426:413-418(2003) [PubMed] [Europe PMC] [Abstract]
Cited for: X-RAY CRYSTALLOGRAPHY (3.1 ANGSTROMS) OF 1-37.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
X66250 Genomic DNA. Translation: CAA46979.1.
FJ423446 Genomic DNA. Translation: ACJ50132.1.
BK000554 Genomic DNA. Translation: DAA00946.1.
PIRS26880.
RefSeqNP_958401.1. NC_005353.1.

3D structure databases

PDBe
RCSB-PDB
PDBj
EntryMethodResolution (Å)ChainPositionsPDBsum
1Q90X-ray3.10G1-37[»]
ProteinModelPortalQ08362.
SMRQ08362. Positions 1-30.
ModBaseSearch...
MobiDBSearch...

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsDAA00946; DAA00946; DAA00946.
GeneID2716996.
KEGGcre:ChreCp045.

Phylogenomic databases

KOK02640.

Enzyme and pathway databases

BioCycCHLAMY:CHRECP045-MONOMER.
MetaCyc:CHRECP045-MONOMER.

Family and domain databases

HAMAPMF_00432. Cytb6_f_PetG.
InterProIPR003683. Cyt_6/f_cplx_su5.
[Graphical view]
PfamPF02529. PetG. 1 hit.
[Graphical view]
PIRSFPIRSF000034. Cyt_b6-f_V. 1 hit.
SUPFAMSSF103446. SSF103446. 1 hit.
ProtoNetSearch...

Other

EvolutionaryTraceQ08362.

Entry information

Entry namePETG_CHLRE
AccessionPrimary (citable) accession number: Q08362
Secondary accession number(s): B7U1I5
Entry history
Integrated into UniProtKB/Swiss-Prot: October 1, 1994
Last sequence update: October 1, 1994
Last modified: May 14, 2014
This is version 84 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

PDB cross-references

Index of Protein Data Bank (PDB) cross-references