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HAMAP rule MF_00441

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General rule information [?]

Accession MF_00441
Dates 23-AUG-2001 (Created)
17-FEB-2023 (Last updated, Version 22)
Name PSII_PsbK
Scope
Bacteria; Cyanobacteriota
Plastid
Templates P12163 (PSBK_SPIOL); P18263 (PSBK_CHLRE): [Recover all]

Propagated annotation [?]


Identifier, protein and gene names [?]

Identifier
PSBK
Protein name
RecName: Full=Photosystem II reaction center protein K;
Short=PSII-K;
Flags: Precursor;
Gene name
psbK

Comments [?]

Function One of the components of the core complex of photosystem II (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation.
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; Single-pass membrane protein.
else case <OC:Gloeobacter>
Subcellular location Cell inner membrane; Single-pass membrane protein.
else
Subcellular location Cellular thylakoid membrane; Single-pass membrane protein.
end case
Similarity Belongs to the PsbK family.

Keywords [?]

case <OC:Gloeobacter>
else
end case

Gene Ontology [?]

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 PF02533; PsbK; 1;

Features [?]

From: PSBK_SYNY3 (P15819)
Key     From     To       Description   Tag   Condition   FTGroup
PROPEP     Nter     8                
CHAIN     9     Cter       Photosystem II reaction center protein K        

Additional information [?]

Size range 41-61 amino acids
Related rules None
Fusion None