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 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 1.1  [+]      
    EC 1.2  [+]      
    EC 1.3  [+]      
    EC 1.4  [+]      
    EC 1.5  [+]      
    EC 1.6  [+]      
    EC 1.7  [+]      
    EC 1.8  [+]      
    EC 1.9  [+]      
    EC 1.10  [+]      
    EC 1.11  [+]      
    EC 1.12  [+]      
    EC 1.13  []      
        EC 1.13.11       []    With incorporation of two atoms of oxygen 
                EC 1.13.11.1                      catechol 1,2-dioxygenase 
                EC 1.13.11.2                      catechol 2,3-dioxygenase 
                EC 1.13.11.3                      protocatechuate 3,4-dioxygenase 
                EC 1.13.11.4                      gentisate 1,2-dioxygenase 
                EC 1.13.11.5                      homogentisate 1,2-dioxygenase 
                EC 1.13.11.6                      3-hydroxyanthranilate 3,4-dioxygenase 
                EC 1.13.11.7                       3,4-dihydroxyphenylacetate 3,4-dioxygenase 
                EC 1.13.11.8                      protocatechuate 4,5-dioxygenase 
                EC 1.13.11.9                      2,5-dihydroxypyridine 5,6-dioxygenase 
                EC 1.13.11.10                      7,8-dihydroxykynurenate 8,8a-dioxygenase 
                EC 1.13.11.11                      tryptophan 2,3-dioxygenase 
                EC 1.13.11.12                      linoleate 13S-lipoxygenase 
                EC 1.13.11.13                      ascorbate 2,3-dioxygenase. The activity is the sum of several enzymatic and spontaneous reactions 
                EC 1.13.11.14                      2,3-dihydroxybenzoate 3,4-dioxygenase 
                EC 1.13.11.15                      3,4-dihydroxyphenylacetate 2,3-dioxygenase 
                EC 1.13.11.16                      3-carboxyethylcatechol 2,3-dioxygenase 
                EC 1.13.11.17                      indole 2,3-dioxygenase 
                EC 1.13.11.18                      persulfide dioxygenase 
                EC 1.13.11.19                      cysteamine dioxygenase 
                EC 1.13.11.20                      cysteine dioxygenase 
                EC 1.13.11.21                      β-carotene 15,15′-dioxygenase. Now EC 1.14.99.36, β-carotene 15,15′-monooxygenase 
                EC 1.13.11.22                      caffeate 3,4-dioxygenase 
                EC 1.13.11.23                      2,3-dihydroxyindole 2,3-dioxygenase 
                EC 1.13.11.24                      quercetin 2,3-dioxygenase 
                EC 1.13.11.25                      3,4-dihydroxy-9,10-secoandrosta-1,3,5(10)-triene-9,17-dione 4,5-dioxygenase 
                EC 1.13.11.26                      peptide-tryptophan 2,3-dioxygenase 
                EC 1.13.11.27                      4-hydroxyphenylpyruvate dioxygenase 
                EC 1.13.11.28                      2,3-dihydroxybenzoate 2,3-dioxygenase 
                EC 1.13.11.29                      stizolobate synthase 
                EC 1.13.11.30                      stizolobinate synthase 
                EC 1.13.11.31                      arachidonate 12-lipoxygenase 
                EC 1.13.11.32                      2-nitropropane dioxygenase. Now EC 1.13.12.16, nitronate monooxygenase 
                EC 1.13.11.33                      arachidonate 15-lipoxygenase 
                EC 1.13.11.34                      arachidonate 5-lipoxygenase 
                EC 1.13.11.35                      pyrogallol 1,2-oxygenase 
                EC 1.13.11.36                      chloridazon-catechol dioxygenase 
                EC 1.13.11.37                      hydroxyquinol 1,2-dioxygenase 
                EC 1.13.11.38                      1-hydroxy-2-naphthoate 1,2-dioxygenase 
                EC 1.13.11.39                      biphenyl-2,3-diol 1,2-dioxygenase 
                EC 1.13.11.40                      arachidonate 8-lipoxygenase 
                EC 1.13.11.41                      2,4′-dihydroxyacetophenone dioxygenase 
                EC 1.13.11.42                       indoleamine-pyrrole 2,3-dioxygenase. The enzyme was identical to EC 1.13.11.11, tryptophan 2,3-dioxygenase 
                EC 1.13.11.43                      lignostilbene αβ-dioxygenase 
                EC 1.13.11.44                      linoleate diol synthase. Activity is covered by EC 1.13.11.60, linoleate 8R-lipoxygenase and EC 5.4.4.6, 9,12-octadecadienoate 8-hydroperoxide 8S-isomerase. 
                EC 1.13.11.45                      linoleate 11-lipoxygenase 
                EC 1.13.11.46                      4-hydroxymandelate synthase 
                EC 1.13.11.47                      3-hydroxy-4-oxoquinoline 2,4-dioxygenase 
                EC 1.13.11.48                      3-hydroxy-2-methylquinolin-4-one 2,4-dioxygenase 
                EC 1.13.11.49                      chlorite O2-lyase 
                EC 1.13.11.50                      acetylacetone-cleaving enzyme 
                EC 1.13.11.51                      9-cis-epoxycarotenoid dioxygenase 
                EC 1.13.11.52                      indoleamine 2,3-dioxygenase 
                EC 1.13.11.53                      acireductone dioxygenase (Ni2+-requiring) 
                EC 1.13.11.54                      acireductone dioxygenase [iron(II)-requiring] 
                EC 1.13.11.55                      sulfur oxygenase/reductase 
                EC 1.13.11.56                      1,2-dihydroxynaphthalene dioxygenase 
                EC 1.13.11.57                      gallate dioxygenase 
                EC 1.13.11.58                      linoleate 9S-lipoxygenase 
                EC 1.13.11.59                      torulene dioxygenase 
                EC 1.13.11.60                      linoleate 8R-lipoxygenase 
                EC 1.13.11.61                      linolenate 9R-lipoxygenase 
                EC 1.13.11.62                      linoleate 10R-lipoxygenase 
                EC 1.13.11.63                      β-carotene 15,15′-dioxygenase 
                EC 1.13.11.64                      5-nitrosalicylate dioxygenase 
                EC 1.13.11.65                      carotenoid isomerooxygenase 
                EC 1.13.11.66                      hydroquinone 1,2-dioxygenase 
                EC 1.13.11.67                      8′-apo-β-carotenoid 14′,13′-cleaving dioxygenase 
                EC 1.13.11.68                      9-cis-β-carotene 9′,10′-cleaving dioxygenase 
                EC 1.13.11.69                      carlactone synthase 
                EC 1.13.11.70                      all-trans-10′-apo-β-carotenal 13,14-cleaving dioxygenase 
                EC 1.13.11.71                      carotenoid-9′,10′-cleaving dioxygenase 
                EC 1.13.11.72                      2-hydroxyethylphosphonate dioxygenase 
                EC 1.13.11.73                      methylphosphonate synthase 
                EC 1.13.11.74                      2-aminophenol 1,6-dioxygenase 
                EC 1.13.11.75                      all-trans-8′-apo-β-carotenal 15,15′-oxygenase 
                EC 1.13.11.76                      2-amino-5-chlorophenol 1,6-dioxygenase 
                EC 1.13.11.77                      oleate 10S-lipoxygenase 
                EC 1.13.11.78                      2-amino-1-hydroxyethylphosphonate dioxygenase (glycine-forming) 
                EC 1.13.11.79                      5,6-dimethylbenzimidazole synthase 
                EC 1.13.11.80                      (3,5-dihydroxyphenyl)acetyl-CoA 1,2-dioxygenase 
                EC 1.13.11.81                      7,8-dihydroneopterin oxygenase 
                EC 1.13.11.82                      8′-apo-carotenoid 13,14-cleaving dioxygenase 
                EC 1.13.11.83                      4-hydroxy-3-prenylphenylpyruvate oxygenase 
        EC 1.13.12       [+]    With incorporation of one atom of oxygen (internal monooxygenases or internal mixed-function oxidases) 
        EC 1.13.99       [+]    Miscellaneous 
    EC 1.14  [+]      
    EC 1.15  [+]      
    EC 1.16  [+]      
    EC 1.17  [+]      
    EC 1.18  [+]      
    EC 1.19  [+]      
    EC 1.20  [+]      
    EC 1.21  [+]      
    EC 1.22  [+]      
    EC 1.23  [+]      
    EC 1.97  [+]      
    EC 1.98  [+]      
    EC 1.99  [+]      
EC 2 [+]   
EC 3 [+]   
EC 4 [+]   
EC 5 [+]   
EC 6 [+]   


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