Q32RQ6 · PSBB_ZYGCR

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. PSII binds additional chlorophylls, carotenoids and specific lipids.

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
Biological Processphotosynthetic electron transport in photosystem II

Keywords

Names & Taxonomy

Protein names

  • Recommended name
    Photosystem II CP47 reaction center protein
  • Alternative names
    • PSII 47 kDa protein
    • Protein CP-47

Gene names

    • Name
      psbB

Encoded on

  • Chloroplast

Organism names

Accessions

  • Primary accession
    Q32RQ6

Subcellular Location

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane21-36Helical
Transmembrane101-115Helical
Transmembrane140-156Helical
Transmembrane203-218Helical
Transmembrane237-252Helical
Transmembrane457-472Helical

Keywords

PTM/Processing

Features

Showing features for chain.

TypeIDPosition(s)Description
ChainPRO_00003598681-508Photosystem II CP47 reaction center protein

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. PsbB subfamily.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    508
  • Mass (Da)
    56,277
  • Last updated
    2005-12-06 v1
  • Checksum
    ABE3B963CBF1D85C
MGLPWYRVHTVVLNDPGRLIAVHLMHTALVSGWAGSMALYELAVFDPSDPVLDPMWRQGMFVIPFMTRLGVTQSWGGWSITGETVTNAGLWSYEGVAAVHIVLSGLLFLAAIWHWVYWDLELFRDERTGKPSLDLPKIFGIHLFLSGVLCFGFGAFHVTGLFGPGVWVSDPYGLTGRVQPVAPAWGAEGFDPFNPGGIASHHIAAGILGILAGLFHLSVRPPQRLYKGLRMGNVETVLSSSIAAVFFAAFVVAGTMWYGCAATPVELFGPTRYQWDQGYFQQEIDRRIRNSVAENVSLSEAWSKIPEKLAFYDYIGNNPAKGGLFRAGAMDNGDGIAVGWLGHAVFKDKEGNELFVRRMPTFFETFPVVLVDEEGIVRADVPFRRAESKYSIEQVGVSVEFYGGELNGVSFSDPATVKKYARRAQLGEIFEFDRATLKSDGVFRSSPRGWFTFGHACFALLFFFGHLWHGSRTLFRDVFAGIDPDLDSQVEFGLFQKLGDPTTRKQTV

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
AY958086
EMBL· GenBank· DDBJ
AAX45837.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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