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 | 
Enzyme Information
| 3.4.22.38 | Cathepsin K. based on mapping to UniProt P43235 Broad proteolytic activity. With small-molecule substrates and inhibitors, the major determinant of specificity is P2, which is preferably Leu, Met > Phe, and not Arg. -!- Prominently expressed in mammalian osteoclasts, and believed to play a role in bone resorption. -!- Belongs to peptidase family C1. | 
UniProtKB Entries (1)
| P43235 | CATK_HUMAN Homo sapiens Cathepsin K | 
PDB Structure
| PDB | 1BGO | 
| External Links | |
| Method | X-RAY DIFFRACTION | 
| Organism | Spodoptera | 
| Primary Citation | Use of X-Ray Co-Crystal Structures and Molecular Modeling to Design Potent and Selective Non-Peptide Inhibitors of Cathepsin K J.Am.Chem.Soc. | 
