front 1 oxidoreductases | back 1 Oxidation-reduction reaction (ex: lactate dehydrogenase) |
front 2 transferases | back 2 group transfer (ex: nucleoside monophosphate kinase) |
front 3 Hydrolases | back 3 hydrolysis reactions (transfer of functional groups to water) (ex: chymotrypsin) |
front 4 Lyases | back 4 Addition or removal of groups to form double bonds (ex: fumarase) |
front 5 Isomerases | back 5 isomerization (intramolecular group transfer) (ex: triose phosphate isomerase) |
front 6 Ligases | back 6 ligation of two substrates at the expense of ATP hydrolysis (ex: aminoacyl-tRNA synthetase) |