CATH Classification
| Level | CATH Code | Description |
|---|---|---|
|
3 | Alpha Beta |
|
3.90 | Alpha-Beta Complex |
|
3.90.70 | Cathepsin B; Chain A |
|
3.90.70.10 | Cysteine proteinases |
Domain Context
CATH Clusters
| Superfamily | Cysteine proteinases |
| Functional Family | Papain |
Enzyme Information
| 3.4.22.2 |
Papain.
based on mapping to UniProt P00784
Hydrolysis of proteins with broad specificity for peptide bonds, but preference for an amino acid bearing a large hydrophobic side chain at the P2 position. Does not accept Val in P1'.
-!- From latex of the papaya (Carica papaya). -!- Inhibited by compound E-64 and proteins of the cystatin family. -!- Belongs to peptidase family C1. -!- Formerly EC 3.4.4.10.
|
UniProtKB Entries (2)
| P00784 |
PAPA1_CARPA
Carica papaya
Papain
|
| Q966X9 |
CHAG_TRYCR
Trypanosoma cruzi
Chagasin
|
PDB Structure
| PDB | 3E1Z |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | |
| Primary Citation |
Crystal structure of the parasite inhibitor chagasin in complex with papain allows identification of structural requirements for broad reactivity and specificity determinants for target proteases.
Febs J.
|
