The 6 classes of enzymes according to the type of reactions they catalyze are the following: oxidoreductase (E.C. 1), transferase (E.C. 2), hydrolase (E.C. 3), lyase, (E.C. 4), isomerase (E.C. 5), and ligase (E.C. 6).
Oxidoreductases catalyze in transfer of electrons (i.e. redox reactions) while transferases catalyze the transfer of functional groups; hydrolases catalyze hydrolysis (breaking down of molecules with the help of water) while lyases are involved in addition/elimination reactions; isomerases lead to isomer formation and ligases involve condensation reactions to form a larger molecule.
Enzymes are divided into six major classes, based on the type of reaction they catalyze. Based on this, in which enzyme do the β-lactamases belong?