| Cat | Cathepsin |
| HMS | Haim–Munk syndrome |
| HEK | HEK, human embryonic kidney |
| PLS | PLS, Papillon–Lefèvre syndrome |
| PDB | PDB, Protein Data Bank |
| Enzymes | Cathepsin C (EC 3.4.14.1), cathepsin F (EC 3.4.22.41), cathepsin K (EC 3.4.22.38), cathepsin L (EC 3.4.22.15), cathepsin S (EC 3.4.22.27), cathepsin V (EC 3.4.22.43) |