P56778 · PSBC_ARATH
- ProteinPhotosystem II CP43 reaction center protein
- GenepsbC
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids473 (go to sequence)
- Protein existenceEvidence at protein level
- Annotation score5/5
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.
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | chloroplast | |
Cellular Component | chloroplast stromal thylakoid | |
Cellular Component | chloroplast thylakoid | |
Cellular Component | chloroplast thylakoid membrane | |
Cellular Component | photosystem II reaction center | |
Cellular Component | plastid | |
Cellular Component | plastoglobule | |
Cellular Component | thylakoid | |
Molecular Function | chlorophyll binding | |
Molecular Function | electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity | |
Molecular Function | metal ion binding | |
Molecular Function | mRNA binding | |
Biological Process | photosynthetic electron transport in photosystem II |
Keywords
- Biological process
- Ligand
Enzyme and pathway databases
Protein family/group databases
Names & Taxonomy
Protein names
- Recommended namePhotosystem II CP43 reaction center protein
- Alternative names
Gene names
Encoded on
- Chloroplast
Organism names
- Strain
- Taxonomic lineageEukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > eudicotyledons > Gunneridae > Pentapetalae > rosids > malvids > Brassicales > Brassicaceae > Camelineae > Arabidopsis
Accessions
- Primary accessionP56778
Proteomes
Organism-specific databases
Genome annotation databases
Subcellular Location
UniProt Annotation
GO Annotation
Plastid, chloroplast thylakoid membrane ; Multi-pass membrane protein
Features
Showing features for transmembrane.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Transmembrane | 69-93 | Helical | ||||
Sequence: LFEVAHFVPEKPMYEQGLILLPHLA | ||||||
Transmembrane | 134-155 | Helical | ||||
Sequence: LLGPETLEESFPFFGYVWKDRN | ||||||
Transmembrane | 178-200 | Helical | ||||
Sequence: KALYFGGVYDTWAPGGGDVRKIT | ||||||
Transmembrane | 255-275 | Helical | ||||
Sequence: KPFAWARRALVWSGEAYLSYS | ||||||
Transmembrane | 291-312 | Helical | ||||
Sequence: WFNNTAYPSEFYGPTGPEASQA | ||||||
Transmembrane | 447-471 | Helical | ||||
Sequence: RARAAAAGFEKGIDRDFEPVLSMTP |
Keywords
- Cellular component
PTM/Processing
Features
Showing features for propeptide, modified residue, chain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Propeptide | PRO_0000029428 | 1-14 | ||||
Sequence: MKTLYSLRRFYHVE | ||||||
Modified residue | 15 | N-acetylthreonine | ||||
Sequence: T | ||||||
Modified residue | 15 | Phosphothreonine | ||||
Sequence: T | ||||||
Chain | PRO_0000029429 | 15-473 | Photosystem II CP43 reaction center protein | |||
Sequence: TLFNGTLALAGRDQETTGFAWWAGNARLINLSGKLLGAHVAHAGLIVFWAGAMNLFEVAHFVPEKPMYEQGLILLPHLATLGWGVGPGGEVIDTFPYFVSGVLHLISSAVLGFGGIYHALLGPETLEESFPFFGYVWKDRNKMTTILGIHLILLGVGAFLLVFKALYFGGVYDTWAPGGGDVRKITNLTLSPSVIFGYLLKSPFGGEGWIVSVDDLEDIIGGHVWLGSICIFGGIWHILTKPFAWARRALVWSGEAYLSYSLAALSVCGFIACCFVWFNNTAYPSEFYGPTGPEASQAQAFTFLVRDQRLGANVGSAQGPTGLGKYLMRSPTGEVIFGGETMRFWDLRAPWLEPLRGPNGLDLSRLKKDIQPWQERRSAEYMTHAPLGSLNSVGGVATEINAVNYVSPRSWLSTSHFVLGFFLFVGHLWHAGRARAAAAGFEKGIDRDFEPVLSMTPLN | ||||||
Modified residue | 18 | Deamidated asparagine | ||||
Sequence: N |
Post-translational modification
Phosphorylation occurs in normal plant growth light conditions. Rapid dephosphorylation occurs during heat shock.
Keywords
- PTM
Proteomic databases
PTM databases
Expression
Gene expression databases
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, PsbC/Ycf12, at least 3 peripheral proteins of the oxygen-evolving complex and a large number of cofactors. It forms dimeric complexes (By similarity).
Interacts with PAM68 (PubMed:20923938).
Interacts with HHL1 (PubMed:24632535).
Interacts with PAM68 (PubMed:20923938).
Interacts with HHL1 (PubMed:24632535).
Protein-protein interaction databases
Structure
Family & Domains
Sequence similarities
Belongs to the PsbB/PsbC family. PsbC subfamily.
Keywords
- Domain
Phylogenomic databases
Family and domain databases
Sequence
- Sequence statusComplete
- Sequence processingThe displayed sequence is further processed into a mature form.
- Length473
- Mass (Da)51,868
- Last updated2012-01-25 v3
- Checksum1AF08B5C4270126C
Sequence caution
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
AP000423 EMBL· GenBank· DDBJ | BAA84381.2 EMBL· GenBank· DDBJ | Genomic DNA | Sequence problems. |