In the plant chloroplast, the enzyme removes the C-terminal extension of the D1 polypeptide of photosystem II; this proteolytic processing is necessary to allow the light-driven assembly of the tetranuclear manganese cluster, which is responsible for photosynthetic water oxidation.
| Predicate | Object |
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| rdf:type | |
| rdfs:comment |
Belongs to peptidase family S41.,
In the plant chloroplast, the enzyme removes the C-terminal extension of the D1 polypeptide of photosystem II; this proteolytic processing is necessary to allow the light-driven assembly of the tetranuclear manganese cluster, which is responsible for photosynthetic water oxidation.
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| rdfs:subClassOf | |
| skos:broaderTransitive | |
| uniprot:name |
C-terminal processing peptidase,
Photosystem II D1 protein processing peptidase,
Protease Re,
Tail-specific protease,
Tsp protease
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| uniprot:activity |
The enzyme shows specific recognition of a C-terminal tripeptide, Xaa-Yaa-Zaa, in which Xaa is preferably Ala or Leu, Yaa is preferably Ala or Tyr, and Zaa is preferably Ala, but then cleaves at a variable distance from the C-terminus. A typical cleavage is -Ala-Ala-|-Arg-Ala-Ala-Lys-Glu-Asn-Tyr-Ala-Leu-Ala-Ala.
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