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 2 [+]   
EC 3 [+]   
EC 4 []   
    EC 4.1  [+]      
    EC 4.2  []      
        EC 4.2.1       [+]    Hydro-lyases 
        EC 4.2.2       [+]    Acting on polysaccharides 
        EC 4.2.3       [+]    Acting on phosphates 
        EC 4.2.99       []    Other carbon-oxygen lyases 
                EC 4.2.99.1                      hyaluronate lyase. Now EC 4.2.2.1, hyaluronate lyase 
                EC 4.2.99.2                      threonine synthase. Now EC 4.2.3.1, threonine synthase 
                EC 4.2.99.3                      pectate lyase. Now EC 4.2.2.2, pectate lyase 
                EC 4.2.99.4                      alginate lyase. Now EC 4.2.2.3, poly(β-D-mannuronate) lyase 
                EC 4.2.99.5                       polyglucuronide lyase 
                EC 4.2.99.6                       chondroitin sulfate lyase. Now included with EC 4.2.2.4 (chondroitin ABC lyase) and EC 4.2.2.5 (chondroitin AC lyase) 
                EC 4.2.99.7                      ethanolamine-phosphate phospho-lyase. Now EC 4.2.3.2, ethanolamine-phosphate phospho-lyase 
                EC 4.2.99.8                      cysteine synthase. Now EC 2.5.1.47, cysteine synthase 
                EC 4.2.99.9                      O-succinylhomoserine (thiol)-lyase. Now EC 2.5.1.48, cystathionine γ-synthase 
                EC 4.2.99.10                      O-acetylhomoserine (thiol)-lyase. Now EC 2.5.1.49, O-acetylhomoserine aminocarboxypropyltransferase 
                EC 4.2.99.11                      methylglyoxal synthase. Now EC 4.2.3.3, methylglyoxal synthase 
                EC 4.2.99.12                      carboxymethyloxysuccinate lyase 
                EC 4.2.99.13                      β-(9-cytokinin)-alanine synthase. Now EC 2.5.1.50, zeatin 9-aminocarboxyethyltransferase 
                EC 4.2.99.14                      β-pyrazolylalanine synthase (acetylserine). Now EC 2.5.1.51, β-pyrazolylalanine synthase 
                EC 4.2.99.15                      L-mimosine synthase. Now EC 2.5.1.52, L-mimosine synthase 
                EC 4.2.99.16                      uracilylalanine synthase. Now EC 2.5.1.53, uracilylalanine synthase 
                EC 4.2.99.17                      thermopsin. Listed as EC 2.5.1.51, β-pyrazolylalanine synthase 
                EC 4.2.99.18                      DNA-(apurinic or apyrimidinic site) lyase 
                EC 4.2.99.19                      2-hydroxypropyl-CoM lyase. Now EC 4.4.1.23, 2-hydroxypropyl-CoM lyase. The enzyme was incorrectly classified as acting on a C-O bond rather than a C-S bond 
                EC 4.2.99.20                      2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate synthase 
                EC 4.2.99.21                      isochorismate lyase 
                EC 4.2.99.22                      tuliposide A-converting enzyme 
                EC 4.2.99.23                      tuliposide B-converting enzyme 
    EC 4.3  [+]      
    EC 4.4  [+]      
    EC 4.5  [+]      
    EC 4.6  [+]      
    EC 4.7  [+]      
    EC 4.99  [+]      
EC 5 [+]   
EC 6 [+]   
EC 7 [+]   


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