HAMAP rule MF_01378
General rule information
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Accession | MF_01378 |
Dates | 28-JUN-2007 (Created) 1-JUN-2023 (Last updated, Version 30) |
Name | PSII_Cyt550 |
Scope | Bacteria; Cyanobacteriota
Plastid |
Template | P0A386 (CY550_THEVB) |
Triggered by |
Propagated annotation
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Identifier, protein and gene names
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Identifier |
|
case <OC:Cyanobacteriota>
Protein name |
|
else case <OG:Chloroplast>
Protein name |
|
end case
Gene name |
|
Comments
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Function | Low-potential cytochrome c that plays a role in the oxygen-evolving complex of photosystem II. |
Cofactor | heme c Note: Binds 1 heme c group covalently per subunit. |
case <OG:Chloroplast>
Subunit | Part of the oxygen-evolving complex of photosystem II. |
Subcellular location | Plastid, chloroplast thylakoid membrane; Peripheral membrane protein; Lumenal side. Note=Associated with photosystem II at the lumenal side of the thylakoid membrane. |
else case <OC:Gloeobacter>
Subunit | The cyanobacterial oxygen-evolving complex is composed of PsbO, PsbP, PsbQ, PsbV and PsbU. |
Subcellular location | Cell inner membrane; Peripheral membrane protein; Extracellular side. Note=Associated with photosystem II at the extracellular side of the inner membrane. |
else
Subunit | The cyanobacterial oxygen-evolving complex is composed of PsbO, PsbP, PsbQ, PsbV and PsbU. |
Subcellular location | Cellular thylakoid membrane; Peripheral membrane protein; Lumenal side. Note=Associated with photosystem II at the lumenal side of the thylakoid membrane. |
end case
Similarity | Belongs to the cytochrome c family. PsbV subfamily. |
Keywords
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case <OC:Gloeobacter>
else
end case
Gene Ontology
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GO:0019684; Biological process: photosynthesis, light reaction.
GO:0018063; Biological process: cytochrome c-heme linkage.
GO:0018063; Biological process: cytochrome c-heme linkage.
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
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Computed features
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General | Signal; -; 1; trigger=yes; |
Features
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From: CY550_THEVB (P0A386) | ||||||||||||
Key | From | To | Description | Tag | Condition | FTGroup | ||||||
BINDING | 67 | 67 | /ligand="heme c" /ligand_id="ChEBI:CHEBI:61717" /ligand_part="Fe" /ligand_part_id="ChEBI:CHEBI:18248" /note="axial binding residue | H | ||||||||
BINDING | 118 | 118 | /ligand="heme c" /ligand_id="ChEBI:CHEBI:61717" /ligand_part="Fe" /ligand_part_id="ChEBI:CHEBI:18248" /note="axial binding residue | H | ||||||||
BINDING | 63 | 63 | /ligand="heme c" /ligand_id="ChEBI:CHEBI:61717" /note="covalent | C | ||||||||
BINDING | 66 | 66 | /ligand="heme c" /ligand_id="ChEBI:CHEBI:61717" /note="covalent | C |
Additional information
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Size range | 129-186 amino acids |
Related rules | None |
Fusion | None |
Comments | In land plants cytochrome c-550 and the 12 kDa protein (psbU) are replaced by psbP and psbQ. The oxygen-evolving complex in Cyanidium caldarium is composed of 4 proteins (psbO, psbQ, psbU and cytochrome c- 550); it is not yet known what composes the complex in other algae. For a review see: PubMed=17200881; DOI=10.1007/s11120-006-9117-1; Roose J.L., Wegener K.M., Pakrasi H.B.; "The extrinsic proteins of Photosystem II."; Photosyn. Res. 92:369-387(2007). MICAE and SPIMA have been included in the seed despite being only the mature protein. The second copies (psbV2) and proteins in GLOVI look quite different and perhaps should be a different subfamily. |