Q0P3K3 · CYF_OSTTA

  • Protein
    Cytochrome f
  • Gene
    petA
  • Status
    UniProtKB reviewed (Swiss-Prot)
  • Amino acids
  • Protein existence
    Inferred from homology
  • Annotation score
    2/5

Function

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.

Cofactor

heme (UniProtKB | Rhea| CHEBI:30413 )

Note: Binds 1 heme group covalently.

Features

Showing features for binding site.

130720406080100120140160180200220240260280300
TypeIDPosition(s)Description
Binding site25Fe (UniProtKB | ChEBI) of heme (UniProtKB | ChEBI); axial binding residue
Binding site45heme (UniProtKB | ChEBI); covalent
Binding site48heme (UniProtKB | ChEBI); covalent
Binding site49Fe (UniProtKB | ChEBI) of heme (UniProtKB | ChEBI); axial binding residue

GO annotations

all annotationsall molecular functionnucleotide bindingmolecular_functionnucleic acid bindingdna bindingchromatin bindingdna-binding transcription factor activityrna bindingcytoskeletal motor activitycatalytic activitynuclease activitysignaling receptor bindingstructural molecule activitytransporter activitybindingprotein bindingtranslation factor activity, rna bindinglipid bindingkinase activitytransferase activityhydrolase activityoxygen bindingenzyme regulator activitycarbohydrate bindingsignaling receptor activitytranslation regulator activitytranscription regulator activityother molecular functionall biological processcarbohydrate metabolic processgeneration of precursor metabolites and energynucleobase-containing compound metabolic processdna metabolic processtranslationlipid metabolic processtransportresponse to stresscell cyclecell communicationsignal transductioncell-cell signalingmulticellular organism developmentcircadian rhythmbiological_processmetabolic processcatabolic processbiosynthetic processresponse to light stimulusresponse to external stimulustropismresponse to biotic stimulusresponse to abiotic stimulusresponse to endogenous stimulusembryo developmentpost-embryonic developmentfruit ripeningabscissionpollinationflower developmentcellular processprogrammed cell deathphotosynthesiscellular component organizationcell growthprotein metabolic processcellular homeostasissecondary metabolic processreproductive processcell differentiationprotein modification processgrowthepigenetic regulation of gene expressionresponse to chemicalanatomical structure developmentregulation of molecular functionother biological processall cellular componentcellular_componentextracellular regioncell wallintracellular anatomical structurenucleusnuclear envelopenucleoplasmnucleoluscytoplasmmitochondrionlysosomeendosomevacuoleperoxisomeendoplasmic reticulumgolgi apparatuscytosolribosomecytoskeletonplasma membranechloroplastplastidthylakoidmembraneexternal encapsulating structureother cellular component
Cell color indicative of number of GO terms
AspectTerm
Cellular Componentchloroplast thylakoid membrane
Molecular Functionelectron transfer activity
Molecular Functionheme binding
Molecular Functioniron ion binding
Biological Processphotosynthesis

Keywords

Names & Taxonomy

Protein names

  • Recommended name
    Cytochrome f

Gene names

    • Name
      petA
    • Ordered locus names
      OtCpg00490

Encoded on

  • Chloroplast

Organism names

  • Taxonomic identifier
  • Strain
    • OTTH0595
  • Taxonomic lineage
    Eukaryota > Viridiplantae > Chlorophyta > Mamiellophyceae > Mamiellales > Bathycoccaceae > Ostreococcus

Accessions

  • Primary accession
    Q0P3K3

Proteomes

Subcellular Location

Plastid, chloroplast thylakoid membrane
; Single-pass membrane protein

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane273-293Helical

Keywords

PTM/Processing

Features

Showing features for signal, chain.

TypeIDPosition(s)Description
Signal1-24
ChainPRO_000027543525-307Cytochrome f

Interaction

Subunit

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 (By similarity).

Protein-protein interaction databases

Structure

Family & Domains

Sequence similarities

Belongs to the cytochrome f family.

Keywords

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Sequence processing
    The displayed sequence is further processed into a mature form.
  • Length
    307
  • Mass (Da)
    32,963
  • Last updated
    2006-09-19 v1
  • Checksum
    F130A6EE725F8905
MKKNLFLVSVFASLFVGTANNALAYPMYAQQGYENPREATGRIVCANCHLAQKPVDIEVPQAVLPDSVFEAVVKIPYNQEVKQVLGNGKKGGLNVGAVLILPDGFTMAPADRMSAELKEKVGKLYFQPYSEDKQNILIVGPVPGKKYSEMTFPLLSPDPATNKKVNYLTYPIYLGGNRGRGQVYPDGSKSNNTVYNAAAAGKIAAINPTEKGTDVVIDKVDGGSVTVAIPSGPDLLVSVGDTVAADQPITNNPNVGGFGQGETEIVLQNPARLQGLVIFLGFVLIAQVFLVLKKKQFEKVQLSEMNF

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
CR954199
EMBL· GenBank· DDBJ
CAL36374.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

Disclaimer

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