CATH Classification
| Level | CATH Code | Description | 
|---|---|---|
|   | 2 | Mainly Beta | 
|   | 2.40 | Beta Barrel | 
|   | 2.40.70 | Cathepsin D, subunit A; domain 1 | 
|   | 2.40.70.10 | Acid Proteases | 
Domain Context
CATH Clusters
| Superfamily | Acid Proteases | 
| Functional Family | Aspartic protease pep1 | 
Enzyme Information
| 3.4.23.20 | Penicillopepsin. based on mapping to UniProt P00798 Hydrolysis of proteins with broad specificity similar to that of pepsin A, preferring hydrophobic residues at P1 and P1', but also cleaving 20-Gly-|-Glu-21 in the B chain of insulin. Clots milk, and activates trypsinogen. -!- From the imperfect fungus Penicillium janthinellum. -!- Closely related enzymes have been isolated from P.roqueforti and P.duponti. -!- Belongs to peptidase family A1. -!- Formerly EC 3.4.4.17, EC 3.4.23.6 and EC 3.4.23.7. | 
UniProtKB Entries (1)
| P00798 | PEPA1_PENJA Penicillium janthinellum Penicillopepsin-1 | 
PDB Structure
| PDB | 1APT | 
| External Links | |
| Method | X-RAY DIFFRACTION | 
| Organism | |
| Primary Citation | Crystallographic Analysis of a Pepstatin Analogue Binding to the Aspartyl Proteinase Penicillopepsin at 1.8 Angstroms Resolution Peptides: Structure and Function, Proceedings of the of the Eighth American Peptide Symposium | 
