309
Table 1 (continued)
Class
Subclass
sub-subclass
Reaction type
EC 3.4.14 Dipeptidyl-peptidases and tripeptidyl-peptidases
EC 3.4.15 Peptidyl-dipeptidases
EC 3.4.16 Serine-type carboxypeptidases
EC 3.4.17 Metallocarboxypeptidases
EC 3.4.18 Cysteine-type carboxypeptidases
EC 3.4.19 Omega peptidases
EC 3.4.21 Serine endopeptidases
EC 3.4.22 Cysteine endopeptidases
EC 3.4.23 Aspartic endopeptidases
EC 3.4.24 Metalloendopeptidases
EC 3.4.99 Endopeptidases of unknown catalytic mechanism
EC 3.5
Acting on carbon-nitrogen bonds, other than peptide bonds
EC 3.5.1 In linear amides
EC 3.5.2 In cyclic amides
EC 3.5.3 In linear amidines
EC 3.5.4 In cyclic amidines
EC 3.5.5 In nitriles
EC 3.5.99 In other compounds
EC 3.6
Acting on acid anhydrides
EC 3.6.1 In phosphorus-containing anhydrides
EC 3.6.2 In sulfonyl-containing anhydrides
EC 3.7
Acting on carbon-carbon bonds
EC 3.7.1 In ketonic substances
EC 3.8
Acting on halide bonds
EC 3.8.1 In C-halide compounds
EC 3.9
Acting on phosphorus-nitrogen bonds
EC
3.10
Acting on sulfur-nitrogen bonds
EC
3.11
Acting on carbon-phosphorus bonds
EC
3.12
Acting on sulfur-sulfur bonds
EC 4: Lyases
EC 4.1
Carbon-carbon lyases
EC 4.1.1 Carboxy-lyases
EC 4.1.2 Aldehyde-lyases
EC 4.1.3 Oxo-acid-lyases
EC 4.1.99 Other carbon–carbon lyases
EC 4.2
Carbon-oxygen lyases
EC 4.2.1 Hydro-lyases
EC 4.2.2 Acting on polysaccharides
(continued)
Proteins as Enzymes