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 | 1BY8 |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | Escherichia |
| Primary Citation |
The crystal structure of human procathepsin K.
Biochemistry
|