AC   MF_01496;
DC   Protein; auto
TR   HAMAP; MF_01496; -; 1; level=0
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Names: PSII_PsbC_CP43
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ID   PSBC
DE   RecName: Full=Photosystem II CP43 reaction center protein;
DE   AltName: Full=PSII 43 kDa protein;
DE   AltName: Full=Protein CP-43;
case <OC:Eukaryota>
DE   Flags: Precursor;
end case
GN   Name=psbC;
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CC   -!- FUNCTION: One of the components of the core complex of photosystem II
CC       (PSII). It binds chlorophyll and helps catalyze the primary light-
CC       induced photochemical processes of PSII. PSII is a light-driven
CC       water:plastoquinone oxidoreductase, using light energy to abstract
CC       electrons from H(2)O, generating O(2) and a proton gradient
CC       subsequently used for ATP formation.
CC   -!- COFACTOR:
CC       Note=Binds multiple chlorophylls and provides some of the ligands for
CC       the Ca-4Mn-5O cluster of the oxygen-evolving complex. It may also
CC       provide a ligand for a Cl- that is required for oxygen evolution. PSII
CC       binds additional chlorophylls, carotenoids and specific lipids.;
case <OC:Cyanobacteriota>
CC   -!- SUBUNIT: PSII is composed of 1 copy each of membrane proteins PsbA,
CC       PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT,
CC       PsbX, PsbY, PsbZ, Psb30/Ycf12, peripheral proteins PsbO, CyanoQ (PsbQ),
CC       PsbU, PsbV and a large number of cofactors. It forms dimeric complexes.
else
CC   -!- SUBUNIT: PSII is composed of 1 copy each of membrane proteins PsbA,
CC       PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT,
CC       PsbX, PsbY, PsbZ, Psb30/Ycf12, at least 3 peripheral proteins of the
CC       oxygen-evolving complex and a large number of cofactors. It forms
CC       dimeric complexes.
end case
case <OG:Chloroplast>
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane; Multi-
CC       pass membrane protein.
else case <OC:Gloeobacter>
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane; Multi-pass membrane protein.
else
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane; Multi-pass membrane
CC       protein.
end case
CC   -!- SIMILARITY: Belongs to the PsbB/PsbC family. PsbC subfamily.
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DR   Pfam; PF00421; PSII; 1; trigger=no
DR   NCBIfam; TIGR01153; psbC; 1; trigger=no
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KW   Chlorophyll
KW   Chromophore
KW   Manganese
KW   Membrane
KW   Metal-binding
KW   Photosynthesis
KW   Photosystem II
case <OC:Gloeobacter>
KW   Cell membrane
KW   Cell inner membrane
else
KW   Thylakoid
end case
KW   Transmembrane
KW   Transmembrane helix
case <FTTag:phospho>
KW   Phosphoprotein
end case
case <FTTag:acetyl>
KW   Acetylation
end case
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GO   GO:0016168; F:chlorophyll binding
GO   GO:0015979; P:photosynthesis
case <OG:Chloroplast>
GO   GO:0009535; C:chloroplast thylakoid membrane
else case <OC:Gloeobacter>
GO   GO:0005886; C:plasma membrane
else
GO   GO:0042651; C:thylakoid membrane
end case
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FT   From: PSBC_THEVL (D0VWR7)
FT   TRANSMEM        47..71
FT                   /note="Helical"
FT   TRANSMEM        112..133
FT                   /note="Helical"
FT   TRANSMEM        156..178
FT                   /note="Helical"
FT   TRANSMEM        233..253
FT                   /note="Helical"
FT   TRANSMEM        269..290
FT                   /note="Helical"
FT   TRANSMEM        425..449
FT                   /note="Helical"
FT   BINDING         345
FT                   /ligand="[CaMn4O5] cluster"
FT                   /ligand_id="ChEBI:CHEBI:189552"
FT   Condition: E
FT   From: PSBC_ARATH (P56778)
case <OC:Eukaryota>
FT   PROPEP          Nter..14
FT   CHAIN           15..Cter
FT                   /note="Photosystem II CP43 reaction center protein"
end case
case <OC:Eukaryota> and not <OC:Rhodophyta>
FT   MOD_RES         15
FT                   /note="N-acetylthreonine"
FT   Tag: acetyl; Condition: T
FT   MOD_RES         15
FT                   /note="Phosphothreonine"
FT   Tag: phospho; Condition: T
end case
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Size: 450-500;
Related: None;
Template: D0VWR7; Q8DIF8; P56778; P48187; P09193;
Scope:
 Bacteria; Cyanobacteriota
 Plastid
Fusion:
 Nter: None
 Cter: None
Duplicate: None
Plasmid: None
Comments: PMID 9512353 showed phosphorylation in moss, fern, liverwort but
 none in red algae or cyanobacteria.
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# Revision 1.11 2023/06/15
//