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P83795 (PETL_MASLA) Reviewed, UniProtKB/Swiss-Prot

Last modified February 19, 2014. Version 45. 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 6
Alternative name(s):
Cytochrome b6-f complex subunit PetL
Cytochrome b6-f complex subunit VI
Gene names
Name:petL
OrganismMastigocladus laminosus (Fischerella sp.)
Taxonomic identifier83541 [NCBI]
Taxonomic lineageBacteriaCyanobacteriaStigonematalesMastigocladus

Protein attributes

Sequence length32 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. PetL is important for photoautotrophic growth as well as for electron transfer efficiency and stability of the cytochrome b6-f complex. HAMAP-Rule MF_00433

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_00433.

Sequence similarities

Belongs to the PetL family.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 3232Cytochrome b6-f complex subunit 6 HAMAP-Rule MF_00433
PRO_0000220486

Regions

Transmembrane6 – 2621Helical; Potential

Secondary structure

.... 32
Helix Strand Turn

Details...

Sequences

Sequence LengthMass (Da)Tools
P83795 [UniParc].

Last modified March 15, 2004. Version 1.
Checksum: B9C10271C3DE499F

FASTA323,502
        10         20         30 
MILGAVFYIV FIALFFGIAV GIIFAIKSIK LI 

« 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-ray3.00E/R1-32[»]
2D2CX-ray3.80E/R1-32[»]
2E74X-ray3.00E1-32[»]
2E75X-ray3.55E1-32[»]
2E76X-ray3.41E1-32[»]
4H0LX-ray3.25E1-32[»]
4H13X-ray3.07E1-32[»]
4I7ZX-ray2.80E1-32[»]
ProteinModelPortalP83795.
SMRP83795. Positions 1-32.
ModBaseSearch...
MobiDBSearch...

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Family and domain databases

HAMAPMF_00433. Cytb6_f_PetL.
InterProIPR007802. Cyt_b6/f_cplx_su6.
[Graphical view]
ProtoNetSearch...

Other

EvolutionaryTraceP83795.

Entry information

Entry namePETL_MASLA
AccessionPrimary (citable) accession number: P83795
Entry history
Integrated into UniProtKB/Swiss-Prot: May 10, 2004
Last sequence update: March 15, 2004
Last modified: February 19, 2014
This is version 45 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