Lyases. Desmolases . A class of enzymes that catalyze the cleavage of C-C, C-O, and C-N, and other bonds by other means than by hydrolysis or oxidation. (Enzyme Nomenclature, 1992) EC 4. . 1.00
Hydro-Lyases. Hydro Lyases . Lyases, Hydro . Dehydratases . Hydrases . Enzymes that catalyze the breakage of a carbon-oxygen bond leading to unsaturated products via the removal of water. EC 4.2.1. . 0.76
Carboxy-Lyases. Carboxy Lyases . Decarboxylases . Enzymes that catalyze the addition of a carboxyl group to a compound (carboxylases) or the removal of a carboxyl group from a compound (decarboxylases). EC 4.1.1. . 0.71