Skip Header

You are using a version of Internet Explorer that may not display all features of this website. Please upgrade to a modern browser.
Contribute Send feedback
Read comments (?) or add your own

P83797 (PETG_MASLA) Reviewed, UniProtKB/Swiss-Prot

Last modified February 19, 2014. Version 55. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | 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 subunit 5
Alternative name(s):
Cytochrome b6-f complex subunit PetG
Cytochrome b6-f complex subunit V
Gene names
Name:petG
OrganismMastigocladus laminosus (Fischerella sp.)
Taxonomic identifier83541 [NCBI]
Taxonomic lineageBacteriaCyanobacteriaStigonematalesMastigocladus

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. 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

Cellular 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_0000216411

Regions

Transmembrane5 – 2521Helical; Potential

Secondary structure

..... 37
Helix Strand Turn

Details...

Sequences

Sequence LengthMass (Da)Tools
P83797 [UniParc].

Last modified March 15, 2004. Version 1.
Checksum: D7587090FF339BFB

FASTA374,015
        10         20         30 
MVEPLLDGLV LGLVFATLGG LFYAAYQQYK RPNELGG 

« Hide

References

[1]"Structure of the cytochrome b6f complex of oxygenic photosynthesis: tuning the cavity."
Kurisu G., Zhang H., Smith J.L., Cramer W.A.
Science 302:1009-1014(2003) [PubMed] [Europe PMC] [Abstract]
Cited for: X-RAY CRYSTALLOGRAPHY (3.0 ANGSTROMS).
+Additional computationally mapped references.

Cross-references

3D structure databases

PDBe
RCSB-PDB
PDBj
EntryMethodResolution (Å)ChainPositionsPDBsum
1VF5X-ray3.00G/T1-37[»]
2D2CX-ray3.80G/T1-37[»]
2E74X-ray3.00G1-37[»]
2E75X-ray3.55G1-37[»]
2E76X-ray3.41G1-37[»]
4H0LX-ray3.25G1-37[»]
4H13X-ray3.07G1-37[»]
4I7ZX-ray2.80G1-37[»]
ProteinModelPortalP83797.
SMRP83797. Positions 1-37.
ModBaseSearch...
MobiDBSearch...

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

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

EvolutionaryTraceP83797.

Entry information

Entry namePETG_MASLA
AccessionPrimary (citable) accession number: P83797
Entry history
Integrated into UniProtKB/Swiss-Prot: April 13, 2004
Last sequence update: March 15, 2004
Last modified: February 19, 2014
This is version 55 of the entry and version 1 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

PDB cross-references

Index of Protein Data Bank (PDB) cross-references