The Enzyme Database

Table of Contents

The enzymes in this section of the database are organized as you would find them in the Enzyme-Nomenclature book. Click [+] to expand, and [–] to collapse, any section. Clicking on a heading will open a popup window with information on that class, subclass or sub-subclass.

For a fully expanded list of the classes, subclasses and sub-subclasses, click here

[+subclass]. [+sub-subclass]. [+serial]

EC 1 [+]   
EC 2 [+]   
EC 3 []   
    EC 3.1  [+]      
    EC 3.2  []      
        EC 3.2.1       []    Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds 
                EC                      α-amylase 
                EC                      β-amylase 
                EC                      glucan 1,4-α-glucosidase 
                EC                      cellulase 
                EC                       licheninase 
                EC                      endo-1,3(4)-β-glucanase 
                EC                      inulinase 
                EC                      endo-1,4-β-xylanase 
                EC                       amylopectin-1,6-glucosidase 
                EC                      oligo-1,6-glucosidase 
                EC                      dextranase 
                EC                       cycloheptaglucanase. Now included with EC cyclomaltodextrinase 
                EC                       cyclohexaglucanase. Now included with EC cyclomaltodextrinase 
                EC                      chitinase 
                EC                      endo-polygalacturonase 
                EC                       alginase 
                EC                      lysozyme 
                EC                      exo-α-sialidase 
                EC                       heparinase 
                EC                      α-glucosidase 
                EC                      β-glucosidase 
                EC                      α-galactosidase 
                EC                      β-galactosidase 
                EC                      α-mannosidase 
                EC                      β-mannosidase 
                EC                      β-fructofuranosidase 
                EC                       α-1,3-glucosidase 
                EC                      α,α-trehalase 
                EC                       chitobiase. Now included with EC, β-N-acetylhexosaminidase 
                EC                       β-D-acetylglucosaminidase. Now included with EC, β-N-acetylhexosaminidase 
                EC                      β-glucuronidase 
                EC                      endo-1,3-β-xylanase 
                EC                      amylo-α-1,6-glucosidase 
                EC                       chondroitinase. Now included with EC hyalurononglucosaminidase 
                EC                      hyaluronoglucosaminidase 
                EC                      hyaluronoglucuronidase 
                EC                      xylan 1,4-β-xylosidase 
                EC                      β-D-fucosidase 
                EC                      glucan endo-1,3-β-D-glucosidase 
                EC                      α-L-rhamnosidase 
                EC                      pullulanase 
                EC                      GDP-glucosidase 
                EC                      β-L-rhamnosidase 
                EC                      fucoidanase. Now EC, endo-(13)-fucoidanase and EC, endo-(14)-fucoidanase 
                EC                      glucosylceramidase 
                EC                      galactosylceramidase 
                EC                      galactosylgalactosylglucosylceramidase. Now known to be catalyzed by EC, α-galactosidase. 
                EC                      sucrose α-glucosidase 
                EC                      α-N-acetylgalactosaminidase 
                EC                      α-N-acetylglucosaminidase 
                EC                      α-L-fucosidase 
                EC                      β-N-acetylhexosaminidase 
                EC                      β-N-acetylgalactosaminidase 
                EC                      cyclomaltodextrinase 
                EC                      non-reducing end α-L-arabinofuranosidase 
                EC                      glucuronosyl-disulfoglucosamine glucuronidase 
                EC                      isopullulanase 
                EC                      glucan 1,3-β-glucosidase 
                EC                      glucan endo-1,3-α-glucosidase 
                EC                      glucan 1,4-α-maltotetraohydrolase 
                EC                      mycodextranase 
                EC                      glycosylceramidase 
                EC                      1,2-α-L-fucosidase 
                EC                      2,6-β-fructan 6-levanbiohydrolase 
                EC                      levanase 
                EC                      The activity is covered by EC, α-L-rhamnosidase 
                EC                      galacturonan 1,4-α-galacturonidase 
                EC                      isoamylase 
                EC                       amylopectin 6-glucanohydrolase. Now included with EC pullulanase 
                EC                      glucan 1,6-α-glucosidase 
                EC                      glucan endo-1,2-β-glucosidase 
                EC                      xylan 1,3-β-xylosidase 
                EC                      licheninase 
                EC                      glucan 1,4-β-glucosidase 
                EC                      glucan endo-1,6-β-glucosidase 
                EC                      L-iduronidase 
                EC                      mannan 1,2-(1,3)-α-mannosidase 
                EC                      mannan endo-1,4-β-mannosidase 
                EC                       α-L-arabinofuranoside hydrolase. Now included with EC α-N-arabinofuranosidase 
                EC                      fructan β-fructosidase 
                EC                      β-agarase 
                EC                      exo-poly-α-digalacturonosidase 
                EC                      κ-carrageenase 
                EC                      glucan 1,3-α-glucosidase 
                EC                      6-phospho-β-galactosidase 
                EC                      6-phospho-β-glucosidase 
                EC                      capsular-polysaccharide endo-1,3-α-galactosidase 
                EC                      non-reducing end β-L-arabinopyranosidase 
                EC                      arabinogalactan endo-β-1,4-galactanase 
                EC                       arabinogalactan endo-1,3-β-galactosidase. The enzyme was not sufficiently characterized to warrant an EC number 
                EC                      cellulose 1,4-β-cellobiosidase (non-reducing end) 
                EC                      peptidoglycan β-N-acetylmuramidase 
                EC                      α,α-phosphotrehalase 
                EC                      glucan 1,6-α-isomaltosidase 
                EC                      dextran 1,6-α-isomaltotriosidase 
                EC                      mannosyl-glycoprotein endo-β-N-acetylglucosaminidase 
                EC                      endo-α-N-acetylgalactosaminidase 
                EC                      glucan 1,4-α-maltohexaosidase 
                EC                      arabinan endo-1,5-α-L-arabinanase 
                EC                      mannan 1,4-mannobiosidase 
                EC                      mannan endo-1,6-α-mannosidase 
                EC                      blood-group-substance endo-1,4-β-galactosidase 
                EC                      keratan-sulfate endo-1,4-β-galactosidase 
                EC                      steryl-β-glucosidase 
                EC                      3α(S)-strictosidine β-glucosidase 
                EC                      mannosyl-oligosaccharide glucosidase 
                EC                      protein-glucosylgalactosylhydroxylysine glucosidase 
                EC                      lactase 
                EC                      endogalactosaminidase 
                EC                      mucinaminylserine mucinaminidase. The enzyme is identical to EC, glycopeptide α-N-acetylgalactosaminidase 
                EC                      1,3-α-L-fucosidase 
                EC                      2-deoxyglucosidase 
                EC                      mannosyl-oligosaccharide 1,2-α-mannosidase 
                EC                      mannosyl-oligosaccharide 1,3-1,6-α-mannosidase 
                EC                      branched-dextran exo-1,2-α-glucosidase 
                EC                      glucan 1,4-α-maltotriohydrolase 
                EC                      amygdalin β-glucosidase 
                EC                      prunasin β-glucosidase 
                EC                      vicianin β-glucosidase 
                EC                      oligoxyloglucan β-glycosidase 
                EC                      polymannuronate hydrolase 
                EC                      maltose-6′-phosphate glucosidase 
                EC                      endoglycosylceramidase 
                EC                      3-deoxy-2-octulosonidase 
                EC                      raucaffricine β-glucosidase 
                EC                      coniferin β-glucosidase 
                EC                      1,6-α-L-fucosidase 
                EC                      glycyrrhizin hydrolase 
                EC                      endo-α-sialidase 
                EC                      glycoprotein endo-α-1,2-mannosidase 
                EC                      xylan α-1,2-glucuronosidase 
                EC                      chitosanase 
                EC                      glucan 1,4-α-maltohydrolase 
                EC                      difructose-dianhydride-I hydrolase. Now EC, difructose-dianhydride-I hydro-lyase 
                EC                      neopullulanase 
                EC                      glucuronoarabinoxylan endo-1,4-β-xylanase 
                EC                      mannan exo-1,2-1,6-α-mannosidase 
                EC                      anhydrosialidase. Now EC, anhydrosialidase 
                EC                      α-glucuronidase 
                EC                      lacto-N-biosidase 
                EC                      4-α-D-{(1→4)-α-D-glucano}trehalose trehalohydrolase 
                EC                      limit dextrinase 
                EC                      poly(ADP-ribose) glycohydrolase 
                EC                      3-deoxyoctulosonase 
                EC                      galactan 1,3-β-galactosidase 
                EC                      β-galactofuranosidase 
                EC                      thioglucosidase 
                EC                      ribosylhomocysteinase. This enzyme was transferred to EC, 5-deoxyribos-5-ylhomocysteinase, which has since been deleted. The activity is most probably attributable to EC, S-ribosylhomocysteine lyase 
                EC                      β-primeverosidase 
                EC                      oligoxyloglucan reducing-end-specific cellobiohydrolase 
                EC                      xyloglucan-specific endo-β-1,4-glucanase 
                EC                      mannosylglycoprotein endo-β-mannosidase 
                EC                      fructan β-(2,1)-fructosidase 
                EC                      fructan β-(2,6)-fructosidase 
                EC                      xyloglucan-specific endo-processive β-1,4-glucanase 
                EC                      oligosaccharide reducing-end xylanase 
                EC                      ι-carrageenase 
                EC                      α-agarase 
                EC                      α-neoagaro-oligosaccharide hydrolase 
                EC                      xyloglucan-specific exo-β-1,4-glucanase. The enzyme was shown to be identical to EC, xyloglucan-specific exo-β-1,4-glucanase, during the public-review process so was withdrawn before being made official 
                EC                      β-apiosyl-β-glucosidase 
                EC                      λ-carrageenase 
                EC                      1,6-α-D-mannosidase 
                EC                      galactan endo-1,6-β-galactosidase 
                EC                      exo-1,4-β-D-glucosaminidase 
                EC                      heparanase 
                EC                      baicalin-β-D-glucuronidase 
                EC                      hesperidin 6-O-α-L-rhamnosyl-β-D-glucosidase 
                EC                      protein O-GlcNAcase 
                EC                      mannosylglycerate hydrolase 
                EC                      rhamnogalacturonan hydrolase 
                EC                      unsaturated rhamnogalacturonyl hydrolase 
                EC                      rhamnogalacturonan galacturonohydrolase 
                EC                      rhamnogalacturonan rhamnohydrolase 
                EC                      β-D-glucopyranosyl abscisate β-glucosidase 
                EC                      cellulose 1,4-β-cellobiosidase (reducing end) 
                EC                      α-D-xyloside xylohydrolase 
                EC                      β-porphyranase 
                EC                      gellan tetrasaccharide unsaturated glucuronosyl hydrolase 
                EC                      unsaturated chondroitin disaccharide hydrolase 
                EC                      galactan endo-β-1,3-galactanase 
                EC                      4-hydroxy-7-methoxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl glucoside β-D-glucosidase 
                EC                      UDP-N-acetylglucosamine 2-epimerase (hydrolysing) 
                EC                      UDP-N,N′-diacetylbacillosamine 2-epimerase (hydrolysing) 
                EC                      non-reducing end β-L-arabinofuranosidase 
                EC                      protodioscin 26-O-β-D-glucosidase 
                EC                      (Ara-f)3-Hyp β-L-arabinobiosidase 
                EC                      avenacosidase 
                EC                      dioscin glycosidase (diosgenin-forming)  
                EC                      dioscin glycosidase (3-O-β-D-Glc-diosgenin-forming)  
                EC                      ginsenosidase type III 
                EC                      ginsenoside Rb1 β-glucosidase 
                EC                      ginsenosidase type I 
                EC                      ginsenosidase type IV 
                EC                      20-O-multi-glycoside ginsenosidase  
                EC                      limit dextrin α-1,6-maltotetraose-hydrolase 
                EC                      β-1,2-mannosidase 
                EC                      α-mannan endo-1,2-α-mannanase 
                EC                      sulfoquinovosidase 
                EC                      exo-chitinase (non-reducing end) 
                EC                      exo-chitinase (reducing end) 
                EC                      endo-chitodextinase 
                EC                      carboxymethylcellulase 
                EC                      1,3-α-isomaltosidase 
                EC                      isomaltose glucohydrolase 
                EC                      oleuropein β-glucosidase 
                EC                      mannosyl-oligosaccharide α-1,3-glucosidase 
                EC                      glucosylglycerate hydrolase 
                EC                      endoplasmic reticulum Man9GlcNAc2 1,2-α-mannosidase 
                EC                      endoplasmic reticulum Man8GlcNAc2 1,2-α-mannosidase 
                EC                      endo-(1→3)-fucoidanase 
                EC                      endo-(1→4)-fucoidanase 
                EC                      galactan exo-1,6-β-galactobiohydrolase (non-reducing end) 
                EC                      exo β-1,2-glucooligosaccharide sophorohydrolase (non-reducing end) 
                EC                      arabinogalactan exo α-(1,3)-α-D-galactosyl-(1→3)-L-arabinofuranosidase (non-reducing end) 
                EC                      kojibiose hydrolase 
                EC                      exo-acting protein-α-N-acetylgalactosaminidase 
                EC                      α-3′-ketoglucosidase 
                EC                      palatinase 
                EC                      ipecoside β-D-glucosidase 
                EC                      MMP endo-(1,4)-3-O-methyl-α-D-mannosidase 
                EC                      funoran endo-β-hydrolase 
                EC                      arabinogalactan exo α-(1,3)-β-L-arabinopyranosyl-(1→3)-L-arabinofuranosidase (non-reducing end) 
                EC                      D-arabinan exo β-(1,2)-arabinofuranosidase (non-reducing end) 
                EC                      D-arabinan exo α-(1,3)/(1,5)-arabinofuranosidase (non-reducing end) 
                EC                      D-arabinan endo α-(1,5)-arabinofuranosidase 
        EC 3.2.2       [+]    Hydrolysing N-glycosyl compounds 
        EC 3.2.3       [+]    Hydrolysing S-glycosyl compounds (deleted sub-subclass) 
    EC 3.3  [+]      
    EC 3.4  [+]      
    EC 3.5  [+]      
    EC 3.6  [+]      
    EC 3.7  [+]      
    EC 3.8  [+]      
    EC 3.9  [+]      
    EC 3.10  [+]      
    EC 3.11  [+]      
    EC 3.12  [+]      
    EC 3.13  [+]      
EC 4 [+]   
EC 5 [+]   
EC 6 [+]   
EC 7 [+]   

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