AC   MF_00441;
DC   Protein; auto
TR   HAMAP; MF_00441; -; 1; level=0
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Names: PSII_PsbK
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ID   PSBK
DE   RecName: Full=Photosystem II reaction center protein K;
DE            Short=PSII-K;
DE   Flags: Precursor;
GN   Name=psbK;
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CC   -!- FUNCTION: One of the components of the core complex of photosystem II
CC       (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that
CC       uses light energy to abstract electrons from H(2)O, generating O(2) and
CC       a proton gradient subsequently used for ATP formation. It consists of a
CC       core antenna complex that captures photons, and an electron transfer
CC       chain that converts photonic excitation into a charge separation.
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; Single-
CC       pass membrane protein.
else case <OC:Gloeobacter>
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane; Single-pass membrane
CC       protein.
else
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane; Single-pass membrane
CC       protein.
end case
CC   -!- SIMILARITY: Belongs to the PsbK family.
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DR   Pfam; PF02533; PsbK; 1; trigger=no
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KW   Photosynthesis
KW   Photosystem II
KW   Reaction center
KW   Membrane
KW   Transmembrane
case <OC:Gloeobacter>
KW   Cell membrane
KW   Cell inner membrane
else
KW   Thylakoid
end case
KW   Transmembrane helix
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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: PSBK_SYNY3 (P15819)
FT   PROPEP          Nter..8
FT   CHAIN           9..Cter
FT                   /note="Photosystem II reaction center protein K"
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Size: 41-61;
Related: None;
Template: P12163; P18263;
Scope:
 Bacteria; Cyanobacteriota
 Plastid
Fusion:
 Nter: None
 Cter: None
Duplicate: None
Plasmid: None
Comments: None
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# Revision 1.23 2023/07/21
//