Q8HB52 · PSBC_ABIAL

Function

function

One of the components of the core complex of photosystem II (PSII). It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of PSII. PSII is a light-driven water:plastoquinone oxidoreductase, using light energy to abstract electrons from H2O, generating O2 and a proton gradient subsequently used for ATP formation.

Cofactor

Note: Binds multiple chlorophylls and provides some of the ligands for the Ca-4Mn-5O cluster of the oxygen-evolving complex. It may also provide a ligand for a Cl- that is required for oxygen evolution. PSII binds additional chlorophylls, carotenoids and specific lipids.

Features

Showing features for binding site.

147350100150200250300350400450
TypeIDPosition(s)Description
Binding site367[CaMn4O5] cluster (UniProtKB | ChEBI)

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
Cellular Componentphotosystem II
Molecular Functionchlorophyll binding
Molecular Functionelectron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity
Molecular Functionmetal ion binding
Biological Processphotosynthetic electron transport in photosystem II

Keywords

Names & Taxonomy

Protein names

  • Recommended name
    Photosystem II CP43 reaction center protein
  • Alternative names
    • PSII 43 kDa protein
    • Protein CP-43

Gene names

    • Name
      psbC

Encoded on

  • Chloroplast

Organism names

Accessions

  • Primary accession
    Q8HB52

Subcellular Location

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane69-93Helical
Transmembrane134-155Helical
Transmembrane178-200Helical
Transmembrane255-275Helical
Transmembrane291-312Helical
Transmembrane447-471Helical

Keywords

PTM/Processing

Features

Showing features for propeptide, modified residue, chain.

TypeIDPosition(s)Description
PropeptidePRO_00004311021-14
Modified residue15N-acetylthreonine
Modified residue15Phosphothreonine
ChainPRO_000007750515-473Photosystem II CP43 reaction center protein

Keywords

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, PsbX, PsbY, PsbZ, Psb30/Ycf12, at least 3 peripheral proteins of the oxygen-evolving complex and a large number of cofactors. It forms dimeric complexes.

Structure

Family & Domains

Sequence similarities

Belongs to the PsbB/PsbC family. PsbC subfamily.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Sequence processing
    The displayed sequence is further processed into a mature form.
  • Length
    473
  • Mass (Da)
    51,755
  • Last updated
    2003-03-01 v1
  • Checksum
    C69393ADEC7E9666
MKTLYSLRRSYPVETLFNGTIALAGRDQETTGFAWWAGNARLINLSGKLLGAHVAHAGLIVFWAGAMNLFEVAHFVPEKPMYEQGLILLPHLATLGWGVGPGGEIVDTFPYFVSGVLHLISSAVLGFGGIYHALIGPETLEESFPFFGYVWKDRNKMTTILGIHLILLGAGAFLLVLKALYFGGVYDTWAPGGGDVRKITNPTLNPSAIFGYLLKSPFGGEGWIVSVDNLEDIIGGHVWLGSICIFGGIWHILTKPFAWARRAFVWSGEAYLSYSLAALSLFGFIACCFVWFNNTAYPSEFYGPTGPEASQAQAFTFLVRDQRLGASVGSAQGPTGLGKYLMRSPTGEIIFGGETMRFWDLRAPWLEPLRGPNGLDLSKLRKDIQPWQERRSAEYMTHAPLGSSNSVGGVATEINAVNYVSPRSWLSTSHFVLGFFLFIGHLWHAGRARAAAAGFEKGIDRDFEPVLSMTPLN

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
AY147791
EMBL· GenBank· DDBJ
AAN46371.1
EMBL· GenBank· DDBJ
Genomic DNA
AY147792
EMBL· GenBank· DDBJ
AAN46372.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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