Table 2.

Division of enzymes into catalytic groups along with the function performed by each of them and selected examples of enzymes.

Group Number	Group Name	The Type of Catalyzed Reaction	Exemplary Enzymes	Reference
I	oxidoreductases	Catalysis of oxidation and reduction reactions; transport of protons and electrons between reductant and oxidant molecules.	● dehydrogenase	[96]
II	transferases	Transferring the selected functional group from the donor molecule to the acceptor molecule.	● kinases	[97]
III	hydrolases	Catalysis of hydrolysis processes—the breakdown of chemical bonds with the participation of a water molecule.	● lipases	[98]
IV	lyases	Cleavage of functional groups from the substrate molecule and breakdown of the chemical bond by means other than hydrolysis or oxidation.	● aldolases	[99]
V	isomerases	Converting one isomeric form of a given compound to another.	● cis-trans isomerases	[100]
VI	ligases	Generation of new compounds by creating a chemical bond between two independent molecules.	● synthetases	[101]