| Mode of Action | Enzyme Type |
| Catalyze hydrolytic reactions | |
| Catalyze coupling two molecules with hydrolysis of a high energy bond, usually phosphoanhydride | |
| Catalyze functional group transfers (e.g. PO4, CH3) | |
| Add or remove groups forming or breaking double bonds | |
| Catalyze oxidation/reduction reactions | |
| Catalyze rearrangement of molecules | |