1. Oxidoreductases

 2. Transferases

 3. Hydrolases

   3.1  Acting on ester bonds

   3.2  Glycosylases

     3.2.1  Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds

       3.2.1.1  alpha-amylase

       3.2.1.2  beta-amylase

       3.2.1.3  glucan 1,4-alpha-glucosidase

       3.2.1.4  cellulase

       3.2.1.6  endo-1,3(4)-beta-glucanase

       3.2.1.7  inulinase

       3.2.1.8  endo-1,4-beta-xylanase

       3.2.1.10  oligo-1,6-glucosidase

       3.2.1.11  dextranase

       3.2.1.14  chitinase

       3.2.1.15  endo-polygalacturonase

       3.2.1.17  lysozyme

       3.2.1.18  exo-alpha-sialidase

       3.2.1.20  alpha-glucosidase

       3.2.1.21  beta-glucosidase

       3.2.1.22  alpha-galactosidase

       3.2.1.23  beta-galactosidase

       3.2.1.24  alpha-mannosidase

       3.2.1.25  beta-mannosidase

       3.2.1.26  beta-fructofuranosidase

       3.2.1.28  alpha,alpha-trehalase

       3.2.1.31  beta-glucuronidase

       3.2.1.32  endo-1,3-beta-xylanase

       3.2.1.33  amylo-alpha-1,6-glucosidase

       3.2.1.35  hyaluronoglucosaminidase

       3.2.1.36  hyaluronoglucuronidase

       3.2.1.37  xylan 1,4-beta-xylosidase

       3.2.1.38  beta-D-fucosidase

       3.2.1.39  glucan endo-1,3-beta-D-glucosidase

       3.2.1.40  alpha-L-rhamnosidase

       3.2.1.41  pullulanase

       3.2.1.42  GDP-glucosidase

       3.2.1.43  beta-L-rhamnosidase

       3.2.1.45  glucosylceramidase

       3.2.1.46  galactosylceramidase

       3.2.1.48  sucrose alpha-glucosidase

       3.2.1.49  alpha-N-acetylgalactosaminidase

       3.2.1.50  alpha-N-acetylglucosaminidase

       3.2.1.51  alpha-L-fucosidase

       3.2.1.52  beta-N-acetylhexosaminidase

       3.2.1.53  beta-N-acetylgalactosaminidase

       3.2.1.54  cyclomaltodextrinase

       3.2.1.55  non-reducing end alpha-L-arabinofuranosidase

       3.2.1.56  glucuronosyl-disulfoglucosamine glucuronidase

       3.2.1.57  isopullulanase

       3.2.1.58  glucan 1,3-beta-glucosidase

       3.2.1.59  glucan endo-1,3-alpha-glucosidase

       3.2.1.60  glucan 1,4-alpha-maltotetraohydrolase

       3.2.1.61  mycodextranase

       3.2.1.62  glycosylceramidase

       3.2.1.63  1,2-alpha-L-fucosidase

       3.2.1.64  2,6-beta-fructan 6-levanbiohydrolase

       3.2.1.65  levanase

       3.2.1.67  galacturonan 1,4-alpha-galacturonidase

       3.2.1.68  isoamylase

       3.2.1.70  glucan 1,6-alpha-glucosidase

       3.2.1.71  glucan endo-1,2-beta-glucosidase

       3.2.1.72  xylan 1,3-beta-xylosidase

       3.2.1.73  licheninase

       3.2.1.74  glucan 1,4-beta-glucosidase

       3.2.1.75  glucan endo-1,6-beta-glucosidase

       3.2.1.76  L-iduronidase

       3.2.1.77  mannan 1,2-(1,3)-alpha-mannosidase

       3.2.1.78  mannan endo-1,4-beta-mannosidase

       3.2.1.80  fructan beta-fructosidase

       3.2.1.81  beta-agarase

       3.2.1.82  exo-poly-alpha-digalacturonosidase

       3.2.1.83  kappa-carrageenase

       3.2.1.84  glucan 1,3-alpha-glucosidase

       3.2.1.85  6-phospho-beta-galactosidase

       3.2.1.86  6-phospho-beta-glucosidase

       3.2.1.87  capsular-polysaccharide endo-1,3-alpha-galactosidase

       3.2.1.88  non-reducing end beta-L-arabinopyranosidase

       3.2.1.89  arabinogalactan endo-beta-1,4-galactanase

       3.2.1.91  cellulose 1,4-beta-cellobiosidase (non-reducing end)

       3.2.1.92  peptidoglycan beta-N-acetylmuramidase

       3.2.1.93  alpha,alpha-phosphotrehalase

       3.2.1.94  glucan 1,6-alpha-isomaltosidase

       3.2.1.95  dextran 1,6-alpha-isomaltotriosidase

       3.2.1.96  mannosyl-glycoprotein endo-beta-N-acetylglucosaminidase

       3.2.1.97  endo-alpha-N-acetylgalactosaminidase

       3.2.1.98  glucan 1,4-alpha-maltohexaosidase

       3.2.1.99  arabinan endo-1,5-alpha-L-arabinanase

       3.2.1.100  mannan 1,4-mannobiosidase

       3.2.1.101  mannan endo-1,6-alpha-mannosidase

       3.2.1.102  blood-group-substance endo-1,4-beta-galactosidase

       3.2.1.103  keratan-sulfate endo-1,4-beta-galactosidase

       3.2.1.104  steryl-beta-glucosidase

       3.2.1.105  3alpha(S)-strictosidine beta-glucosidase

       3.2.1.106  mannosyl-oligosaccharide glucosidase

       3.2.1.107  protein-glucosylgalactosylhydroxylysine glucosidase

       3.2.1.108  lactase

       3.2.1.109  endogalactosaminidase

       3.2.1.111  1,3-alpha-L-fucosidase

       3.2.1.112  2-deoxyglucosidase

       3.2.1.113  mannosyl-oligosaccharide 1,2-alpha-mannosidase

       3.2.1.114  mannosyl-oligosaccharide 1,3-1,6-alpha-mannosidase

       3.2.1.115  branched-dextran exo-1,2-alpha-glucosidase

       3.2.1.116  glucan 1,4-alpha-maltotriohydrolase

       3.2.1.117  amygdalin beta-glucosidase

       3.2.1.118  prunasin beta-glucosidase

       3.2.1.119  vicianin beta-glucosidase

       3.2.1.120  oligoxyloglucan beta-glycosidase

       3.2.1.121  polymannuronate hydrolase

       3.2.1.122  maltose-6'-phosphate glucosidase

       3.2.1.123  endoglycosylceramidase

       3.2.1.124  3-deoxy-2-octulosonidase

       3.2.1.125  raucaffricine beta-glucosidase

       3.2.1.126  coniferin beta-glucosidase

       3.2.1.127  1,6-alpha-L-fucosidase

       3.2.1.128  glycyrrhizin hydrolase

       3.2.1.129  endo-alpha-sialidase

       3.2.1.130  glycoprotein endo-alpha-1,2-mannosidase

       3.2.1.131  xylan alpha-1,2-glucuronosidase

       3.2.1.132  chitosanase

       3.2.1.133  glucan 1,4-alpha-maltohydrolase

       3.2.1.135  neopullulanase

       3.2.1.136  glucuronoarabinoxylan endo-1,4-beta-xylanase

       3.2.1.137  mannan exo-1,2-1,6-alpha-mannosidase

       3.2.1.139  alpha-glucuronidase

       3.2.1.140  lacto-N-biosidase

       3.2.1.141  4-alpha-D-{(1->4)-alpha-D-glucano}trehalose trehalohydrolase

       3.2.1.142  limit dextrinase

       3.2.1.143  poly(ADP-ribose) glycohydrolase

       3.2.1.144  3-deoxyoctulosonase

       3.2.1.145  galactan 1,3-beta-galactosidase

       3.2.1.146  beta-galactofuranosidase

       3.2.1.147  thioglucosidase

       3.2.1.149  beta-primeverosidase

       3.2.1.150  oligoxyloglucan reducing-end-specific cellobiohydrolase

       3.2.1.151  xyloglucan-specific endo-beta-1,4-glucanase

       3.2.1.152  mannosylglycoprotein endo-beta-mannosidase

       3.2.1.153  fructan beta-(2,1)-fructosidase

       3.2.1.154  fructan beta-(2,6)-fructosidase

       3.2.1.155  xyloglucan-specific endo-processive beta-1,4-glucanase

       3.2.1.156  oligosaccharide reducing-end xylanase

       3.2.1.157  iota-carrageenase

       3.2.1.158  alpha-agarase

       3.2.1.159  alpha-neoagaro-oligosaccharide hydrolase

       3.2.1.161  beta-apiosyl-beta-glucosidase

       3.2.1.162  lambda-carrageenase

       3.2.1.163  1,6-alpha-D-mannosidase

       3.2.1.164  galactan endo-1,6-beta-galactosidase

       3.2.1.165  exo-1,4-beta-D-glucosaminidase

       3.2.1.166  heparanase

       3.2.1.167  baicalin-beta-D-glucuronidase

       3.2.1.168  hesperidin 6-O-alpha-L-rhamnosyl-beta-D-glucosidase

       3.2.1.169  protein O-GlcNAcase

       3.2.1.170  mannosylglycerate hydrolase

       3.2.1.171  rhamnogalacturonan hydrolase

       3.2.1.172  unsaturated rhamnogalacturonyl hydrolase

       3.2.1.173  rhamnogalacturonan galacturonohydrolase

       3.2.1.174  rhamnogalacturonan rhamnohydrolase

       3.2.1.175  beta-D-glucopyranosyl abscisate beta-glucosidase

       3.2.1.176  cellulose 1,4-beta-cellobiosidase (reducing end)

       3.2.1.177  alpha-D-xyloside xylohydrolase

       3.2.1.178  beta-porphyranase

       3.2.1.179  gellan tetrasaccharide unsaturated glucuronosyl hydrolase

       3.2.1.180  unsaturated chondroitin disaccharide hydrolase

       3.2.1.181  galactan endo-beta-1,3-galactanase

       3.2.1.182  4-hydroxy-7-methoxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl glucoside beta-D-glucosidase

       3.2.1.183  UDP-N-acetylglucosamine 2-epimerase (hydrolysing)

       3.2.1.184  UDP-N,N'-diacetylbacillosamine 2-epimerase (hydrolysing)

       3.2.1.185  non-reducing end beta-L-arabinofuranosidase

       3.2.1.186  protodioscin 26-O-beta-D-glucosidase

       3.2.1.187  (Ara-f)3-Hyp beta-L-arabinobiosidase

       3.2.1.188  avenacosidase

       3.2.1.189  dioscin glycosidase (diosgenin-forming)

       3.2.1.190  dioscin glycosidase (3-O-beta-D-Glc-diosgenin-forming)

       3.2.1.191  ginsenosidase type III

       3.2.1.192  ginsenoside Rb1 beta-glucosidase

       3.2.1.193  ginsenosidase type I

       3.2.1.194  ginsenosidase type IV

       3.2.1.195  20-O-multi-glycoside ginsenosidase

       3.2.1.196  limit dextrin alpha-1,6-maltotetraose-hydrolase

       3.2.1.197  beta-1,2-mannosidase

       3.2.1.198  alpha-mannan endo-1,2-alpha-mannanase

       3.2.1.199  sulfoquinovosidase

       3.2.1.200  exo-chitinase (non-reducing end)

       3.2.1.201  exo-chitinase (reducing end)

       3.2.1.202  endo-chitodextinase

       3.2.1.203  carboxymethylcellulase

       3.2.1.204  1,3-alpha-isomaltosidase

       3.2.1.205  isomaltose glucohydrolase

       3.2.1.206  oleuropein beta-glucosidase

       3.2.1.207  mannosyl-oligosaccharide alpha-1,3-glucosidase

       3.2.1.208  glucosylglycerate hydrolase

       3.2.1.209  endoplasmic reticulum Man9GlcNAc2 1,2-alpha-mannosidase

       3.2.1.210  endoplasmic reticulum Man8GlcNAc2 1,2-alpha-mannosidase

       3.2.1.211  endo-(1->3)-fucoidanase

       3.2.1.212  endo-(1->4)-fucoidanase

       3.2.1.213  galactan exo-1,6-beta-galactobiohydrolase (non-reducing end)

       3.2.1.214  exo beta-1,2-glucooligosaccharide sophorohydrolase (non-reducing end)

       3.2.1.215  arabinogalactan exo alpha-(1,3)-alpha-D-galactosyl-(1->3)-L-arabinofuranosidase (non-reducing end)

       3.2.1.216  kojibiose hydrolase

       3.2.1.217  exo-acting protein-alpha-N-acetylgalactosaminidase

       3.2.1.218  alpha-3'-ketoglucosidase

       3.2.1.219  palatinase

       3.2.1.220  ipecoside beta-D-glucosidase

       3.2.1.221  MMP endo-(1,4)-3-O-methyl-alpha-D-mannosidase

       3.2.1.222  funoran endo-beta-hydrolase

       3.2.1.223  arabinogalactan exo alpha-(1,3)-beta-L-arabinopyranosyl-(1->3)-L-arabinofuranosidase (non-reducing end)

       3.2.1.224  D-arabinan exo beta-(1,2)-arabinofuranosidase (non-reducing end)

       3.2.1.225  D-arabinan exo alpha-(1,3)/(1,5)-arabinofuranosidase (non-reducing end)

       3.2.1.226  D-arabinan endo alpha-(1,5)-arabinofuranosidase

     3.2.2  Hydrolysing N-glycosyl compounds

   3.3  Acting on ether bonds

   3.4  Acting on peptide bonds (peptidases)

   3.5  Acting on carbon-nitrogen bonds, other than peptide bonds

   3.6  Acting on acid anhydrides

   3.7  Acting on carbon-carbon bonds

   3.8  Acting on halide bonds

   3.9  Acting on phosphorus-nitrogen bonds

   3.10  Acting on sulfur-nitrogen bonds

   3.11  Acting on carbon-phosphorus bonds

   3.12  Acting on sulfur-sulfur bonds

   3.13  Acting on carbon-sulfur bonds

 4. Lyases

 5. Isomerases

 6. Ligases

 7. Translocases