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

P83793 (CYF_MASLA) Reviewed, UniProtKB/Swiss-Prot

Last modified February 19, 2014. Version 61. 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:
Apocytochrome f
Gene names
Name:petA
OrganismMastigocladus laminosus (Fischerella sp.)
Taxonomic identifier83541 [NCBI]
Taxonomic lineageBacteriaCyanobacteriaStigonematalesMastigocladus

Protein attributes

Sequence length333 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
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. HAMAP-Rule MF_00610

Cofactor

Binds 1 heme group covalently.

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_00610.

Sequence similarities

Belongs to the cytochrome f family.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Signal peptide1 – 3737 Potential
Chain38 – 333296Apocytochrome f HAMAP-Rule MF_00610
PRO_0000207977

Regions

Transmembrane299 – 31921Helical; Potential

Sites

Metal binding451Iron (heme axial ligand); via amino nitrogen By similarity
Metal binding701Iron (heme axial ligand) By similarity
Binding site661Heme (covalent) By similarity
Binding site691Heme (covalent) By similarity

Secondary structure

................................................... 333
Helix Strand Turn

Details...

Sequences

Sequence LengthMass (Da)Tools
P83793 [UniParc].

Last modified July 1, 2008. Version 2.
Checksum: E768F5C264323061

FASTA33336,450
        10         20         30         40         50         60 
MRNSCKKARR TRPLKATIQA LLVAIATMTF FFTSDIALPQ SAAAYPFWAQ QTYPETPREP 

        70         80         90        100        110        120 
TGRIVCANCH LAAKPAEVEV PQSVLPDTVF KAVVKIPYDT KLQQVAADGS KVGLNVGAVL 

       130        140        150        160        170        180 
MLPEGFKIAP EERIPEELKK EVGDVYFQPY KEGQDNVLLV GPLPGEQYQE IVFPVLSPNP 

       190        200        210        220        230        240 
TTDKNIHFGK YAIHLGANRG RGQIYPTGEK SNNNVFTASA TGTITKIAKE EDEYGNVKYQ 

       250        260        270        280        290        300 
VSIQTDSGKT VVDTIPAGPE LIVSEGQAVK AGEALTNNPN VGGFGQDDTE IVLQDPNRVK 

       310        320        330 
WMIAFICLVM LAQLMLILKK KQVEKVQAAE MNF 

« Hide

References

[1]"Cloning and characterization of the petBD and petCA operon from the thermophilic cyanobacterium Mastigocladus laminosus."
Yan J., Zhang H., Cramer W.A.
Submitted (SEP-2003) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
[2]"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

Sequence databases

EMBL
GenBank
DDBJ
AY390356 Genomic DNA. Translation: AAR26241.1.

3D structure databases

PDBe
RCSB PDB
PDBj
EntryMethodResolution (Å)ChainPositionsPDBsum
1VF5X-ray3.00C/P45-333[»]
2D2CX-ray3.80C/P45-333[»]
2E74X-ray3.00C45-333[»]
2E75X-ray3.55C45-333[»]
2E76X-ray3.41C45-333[»]
4H0LX-ray3.25C45-333[»]
4H13X-ray3.07C45-333[»]
4I7ZX-ray2.80C45-333[»]
ProteinModelPortalP83793.
SMRP83793. Positions 45-332.
ModBaseSearch...
MobiDBSearch...

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Family and domain databases

Gene3D1.20.5.700. 1 hit.
2.60.40.830. 2 hits.
HAMAPMF_00610. Cytb6_f_cytF.
InterProIPR024058. Cyt-f_TM.
IPR002325. Cyt_f.
IPR024094. Cyt_f_lg_dom.
IPR011054. Rudment_hybrid_motif.
[Graphical view]
PfamPF01333. Apocytochr_F_C. 1 hit.
[Graphical view]
PRINTSPR00610. CYTOCHROMEF.
SUPFAMSSF103431. SSF103431. 1 hit.
SSF49441. SSF49441. 2 hits.
SSF51246. SSF51246. 1 hit.
PROSITEPS51010. CYTF. 1 hit.
[Graphical view]
ProtoNetSearch...

Other

EvolutionaryTraceP83793.

Entry information

Entry nameCYF_MASLA
AccessionPrimary (citable) accession number: P83793
Secondary accession number(s): Q5YJJ7
Entry history
Integrated into UniProtKB/Swiss-Prot: April 13, 2004
Last sequence update: July 1, 2008
Last modified: February 19, 2014
This is version 61 of the entry and version 2 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