HAMAP rule MF_00441
General rule information
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| Accession | MF_00441 |
| Dates | 23-AUG-2001 (Created)
21-JUL-2023 (Last updated, Version 23) |
| Name | PSII_PsbK |
| Scope(s) |
Bacteria Cyanobacteriota Plastid |
| Template(s) | P12163 (PSBK_SPIOL); P18263 (PSBK_CHLRE); [ Recover all ] |
| Triggered by |
HAMAP; MF_00441 (Get profile general information and statistics) |
Propagated annotation
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Identifier, protein and gene names
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| Identifier | PSBK |
| Protein name | RecName: Full=Photosystem II reaction center protein K; Short=PSII-K; Flags: Precursor; |
| Gene name | Name=psbK; |
Comments
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| 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 | 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, Psb30/Ycf12, peripheral proteins PsbO, CyanoQ(PsbQ), 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, Psb30/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
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| Photosynthesis | |
| Photosystem II | |
| Reaction center | |
| Membrane | |
| Transmembrane | |
| case <OC:Gloeobacter> | |
| Cell membrane | |
| Cell inner membrane | |
| else | |
| Thylakoid | |
| end case | |
| Transmembrane helix | |
Gene Ontology
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| GO:0015979; Biological process:photosynthesis | |
| case <OG:Chloroplast> | |
| GO:0009535; Cellular component:chloroplast thylakoid membrane | |
| else case <OCellular component:Gloeobacter> | |
| GO:0005886; Cellular component:plasma membrane | |
| else; https://www.ebi.ac.uk/QuickGO/term/else | |
| GO:0042651; Cellular component:thylakoid membrane | |
| end case | |
Cross-references
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| Pfam | PF02533; PsbK; 1; |
Features
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| From: PSBK_SYNY3 (P15819) | ||||||||||||
| Key | From | To | Description | Tag | Condition | FTGroup | ||||||
| PROPEP | Nter | 8 | ||||||||||
| CHAIN | 9 | Cter | /note="Photosystem II reaction center protein K" | |||||||||
Additional information
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| Size range | 41-61 amino acids |
| Related rules |
None |
| Fusion | Nter: None Cter: None |