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HAMAP rule MF_01496

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General rule information [?]

Accession MF_01496
Dates 30-SEP-2014 (Created)
17-FEB-2023 (Last updated, Version 9)
Name PSII_PsbC_CP43
Scope
Bacteria; Cyanobacteriota
Plastid
Templates D0VWR7 (PSBC_THEVL); Q8DIF8 (PSBC_THEVB); P56778 (PSBC_ARATH); P48187 (PSBC_MAIZE): [Recover all]
Triggered by

Propagated annotation [?]


Identifier, protein and gene names [?]

Identifier
PSBC
Protein name
RecName: Full=Photosystem II CP43 reaction center protein;
AltName: Full=PSII 43 kDa protein;
AltName: Full=Protein CP-43;
case <OC:Eukaryota>
Protein name
Flags: Precursor;
end case
Gene name
psbC

Comments [?]

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 H(2)O, generating O(2) 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.
case <OC:Cyanobacteriota>
Subunit Cyanobacteriotal 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, Ycf12, at least 3 peripheral proteins PsbO, PsbU, PsbV and a large number of cofactors. It forms dimeric complexes.
else
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, Ycf12, at least 3 peripheral proteins of the oxygen-evolving complex and a large number of cofactors. It forms dimeric complexes.
end case
case <OG:Chloroplast>
Subcellular location Plastid, chloroplast thylakoid membrane; Multi-pass membrane protein.
else case <OC:Gloeobacter>
Subcellular location Cell inner membrane; Multi-pass membrane protein.
else
Subcellular location Cellular thylakoid membrane; Multi-pass membrane protein.
end case
Similarity Belongs to the PsbB/PsbC family. PsbC subfamily.

Keywords [?]

Chlorophyll
Chromophore
Manganese
Membrane
Metal-binding
Photosynthesis
Photosystem II
case <OC:Gloeobacter>
Cell membrane
Cell inner membrane
else
Thylakoid
end case
Transmembrane
Transmembrane helix
case <FTTag:phospho>
Phosphoprotein
end case
case <FTTag:acetyl>
Acetylation
end case

Gene Ontology [?]

GO:0016168; Molecular function: chlorophyll binding.
GO:0015979; Biological process: photosynthesis.
case <OG:Chloroplast>
GO:0009535; Cellular component: chloroplast thylakoid membrane.
else case <OC:Gloeobacter>
GO:0005886; Cellular component: plasma membrane.
else
GO:0042651; Cellular component: thylakoid membrane.
end case

Cross-references [?]

Pfam PF00421; PSII; 1;
TIGRFAMs TIGR01153; psbC; 1;

Features [?]

From: PSBC_THEVL (D0VWR7)
Key     From     To       Description   Tag   Condition   FTGroup
TRANSMEM     51     66       Helical        
TRANSMEM     117     131       Helical        
TRANSMEM     158     174       Helical        
TRANSMEM     240     254       Helical        
TRANSMEM     270     285       Helical        
TRANSMEM     430     446       Helical        
BINDING     345     345       /ligand="[CaMn4O5] cluster" /ligand_id="ChEBI:CHEBI:189552     E  
case <OC:Eukaryota>
From: PSBC_ARATH (P56778)
PROPEP     Nter     14                
CHAIN     15     Cter       Photosystem II CP43 reaction center protein        
end case
case <OC:Eukaryota> and not <OC:Rhodophyta>
MOD_RES     15     15       N-acetylthreonine   acetyl   T  
MOD_RES     15     15       Phosphothreonine   phospho   T  
end case

Additional information [?]

Size range 450-500 amino acids
Related rules None
Fusion None
Comments PMID 9512353 showed phosphorylation in moss, fern, liverwort but none in red algae or cyanobacteria.


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