- acetylcholinesterases34
- aminotransferases25
- anticholinesterases27
- antiphrases17
- apyrases13
- arrases7
- carbohydrases24
- catchphrases25
- charases13
- cholinesterases22
- chrysoprases22
- copperases19
- crases9
- diaphorases17
- epimerases16
- erases6
- esterases9
- fumarases16
- gyrases11
- hippocrases22
- hydrases13
- idocrases13
- isomerases13
- luciferases19
- madrases12
- metaphrases19
- misphrases18
- paraphrases19
- pectinesterases22
- periphrases19
- phosphodiesterases29
- phosphomonoesterases34
- phrases12
- polymerases20
- prases9
- pseudocholinesterases33
- rases5
- rephrases14
- saccharases19
- sassafrases14
- sucrases12
- terrases8
- transferases16
- urases7