A0A2U9NSP2 · A0A2U9NSP2_9STRA

  • Protein
    Photosystem II extrinsic protein V
  • Gene
    psbV
  • Status
    UniProtKB unreviewed (TrEMBL)
  • Amino acids
  • Protein existence
    Inferred from homology
  • Annotation score
    3/5

Function

function

One of the extrinsic, lumenal subunits of photosystem II (PSII). PSII is a light-driven water plastoquinone oxidoreductase, using light energy to abstract electrons from H2O, generating a proton gradient subsequently used for ATP formation. The extrinsic proteins stabilize the structure of photosystem II oxygen-evolving complex (OEC), the ion environment of oxygen evolution and protect the OEC against heat-induced inactivation. Low-potential cytochrome c that plays a role in the OEC of PSII.

Cofactor

heme c (UniProtKB | Rhea| CHEBI:61717 )

Note: Binds 1 heme c group covalently per subunit.

Features

Showing features for binding site.

116320406080100120140160
TypeIDPosition(s)Description
Binding site63heme c (UniProtKB | ChEBI); covalent
Binding site66heme c (UniProtKB | ChEBI); covalent
Binding site67Fe (UniProtKB | ChEBI) of heme c (UniProtKB | ChEBI); axial binding residue
Binding site118Fe (UniProtKB | ChEBI) of heme c (UniProtKB | ChEBI); axial binding residue

GO annotations

all annotationsall molecular functionvirus receptor activitydna bindingrna bindingcytoskeletal motor activitycatalytic activitygtpase activitystructural molecule activitytransporter activitycytoskeletal protein bindinglipid bindingcyclase activityantioxidant activityoxidoreductase activitytransferase activityhydrolase activitylyase activityisomerase activityligase activityprotein tag activitycargo receptor activityhistone bindingprotein folding chaperonetranslation regulator activitynutrient reservoir activityreceptor ligand activitymolecular transducer activitymolecular adaptor activitytoxin activitycell adhesion mediator activitymolecular function regulator activityvirus coreceptor activitycatalytic activity, acting on a proteincatalytic activity, acting on dnacatalytic activity, acting on rnamolecular carrier activitytranscription regulator activitygeneral transcription initiation factor activitymolecular sensor activitymolecular sequestering activityatp-dependent activityother molecular functionall biological processmitotic cell cyclecytokinesiscytoplasmic translationimmune system processmuscle system processcirculatory system processrenal system processrespiratory system processcarbohydrate metabolic processgeneration of precursor metabolites and energydna replicationdna repairdna recombinationchromatin organizationdna-templated transcriptionregulation of dna-templated transcriptiontrna metabolic processprotein foldingprotein glycosylationamino acid metabolic processmodified amino acid metabolic processlipid metabolic processvitamin metabolic processsulfur compound metabolic processintracellular protein transportnucleocytoplasmic transportautophagyinflammatory responsemitochondrion organizationcytoskeleton organizationmicrotubule-based movementperoxisome organizationlysosome organizationchromosome segregationcell adhesionestablishment or maintenance of cell polarityprogrammed cell deathphotosynthesismrna metabolic processsnrna metabolic processvesicle-mediated transportreproductive processdigestive system processsignalingcell differentiationprotein catabolic processextracellular matrix organizationregulatory ncrna-mediated gene silencingtelomere organizationcell junction organizationwound healingribosome biogenesiscilium organizationanatomical structure developmentcell motilitynervous system processendocrine processprotein maturationtransmembrane transportnucleobase-containing small molecule metabolic processhepaticobiliary system processmembrane organizationprotein-containing complex assemblycell wall organization or biogenesisnitrogen cycle metabolic processprotein localization to plasma membranedefense response to other organismdetoxificationmeiotic nuclear divisionmitotic nuclear divisionmitochondrial gene expressioncarbohydrate derivative metabolic processother biological processall cellular componentnuclear chromosomeextracellular regionextracellular spacecell wallnucleusnuclear envelopenucleoplasmchromosomenucleolusmitochondrionlysosomeendosomevacuoleperoxisomeendoplasmic reticulumgolgi apparatuslipid dropletmicrotubule organizing centercytosolribosomecytoskeletonplasma membraneciliumplastidthylakoidexternal encapsulating structureextracellular matrixcytoplasmic vesicleorganelleother cellular component
Cell color indicative of number of GO terms
AspectTerm
Cellular Componentchloroplast thylakoid membrane
Cellular Componentphotosystem II
Molecular Functionelectron transfer activity
Molecular Functionheme binding
Molecular Functioniron ion binding
Biological Processphotosynthesis, light reaction
Biological Processrespiratory electron transport chain

Keywords

Names & Taxonomy

Protein names

  • Recommended name
    Photosystem II extrinsic protein V
  • Short names
    PsbV
  • Alternative names
    • Cytochrome c-550
    • Cytochrome c550

Gene names

    • Name
      psbV

Encoded on

  • Chloroplast

Organism names

  • Taxonomic identifier
  • Organism
  • Taxonomic lineage
    Eukaryota > Sar > Stramenopiles > Ochrophyta > Bacillariophyta > Mediophyceae > Biddulphiophycidae > Biddulphiales > Biddulphiaceae > Biddulphia

Accessions

  • Primary accession
    A0A2U9NSP2

Subcellular Location

Plastid, chloroplast thylakoid membrane
; Peripheral membrane protein
Note: Associated with photosystem II at the lumenal side of the thylakoid membrane.

Keywords

PTM/Processing

Features

Showing features for signal, chain.

TypeIDPosition(s)Description
Signal1-26
ChainPRO_501618502627-163Photosystem II extrinsic protein V

Interaction

Subunit

PSII is composed of 1 copy each of membrane proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT, PsbY, PsbZ, Psb30/Ycf12, at least 3 peripheral proteins of the oxygen-evolving complex and a large number of cofactors. It forms dimeric complexes.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain50-149Cytochrome c

Sequence similarities

Belongs to the cytochrome c family. PsbV subfamily.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Sequence processing
    The displayed sequence is further processed into a mature form.
  • Length
    163
  • Mass (Da)
    17,960
  • Last updated
    2018-09-12 v1
  • Checksum
    E9548C92EEAAAD64
MFKKYSKFWTLLLFSVFNIFILNASAIDLDEATRTVVADSAGNTIVLTPEQVKRGKRLFNATCGACHVGGITKTNPNVGLDPEALSLATPRRDNIAALVDYLKNPTSYDGLESIAEVHPSIKSADIYPRMRSMTDEDLYSIAGHIMLSPKIQAEKWGGGKVYY

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
MG755805
EMBL· GenBank· DDBJ
AWT40055.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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