CATH Classification
| Level | CATH Code | Description |
|---|---|---|
|
3 | Alpha Beta |
|
3.30 | 2-Layer Sandwich |
|
3.30.750 | Transcription Regulator spoIIAA |
|
3.30.750.44 |
Domain Context
CATH Clusters
| Superfamily | 3.30.750.44 |
| Functional Family |
Enzyme Information
| 3.4.21.102 |
C-terminal processing peptidase.
based on mapping to UniProt O04073
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.
-!- 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. -!- Belongs to peptidase family S41.
|
UniProtKB Entries (1)
| O04073 |
CTPA_TETOB
Tetradesmus obliquus
C-terminal processing peptidase, chloroplastic
|
PDB Structure
| PDB | 1FCF |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | |
| Primary Citation |
Crystal structures of the photosystem II D1 C-terminal processing protease.
Nat.Struct.Biol.
|
