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 1.1.1       [+]    With NAD+ or NADP+ as acceptor 
        EC 1.1.2       [+]    With a cytochrome as acceptor 
        EC 1.1.3       [+]    With oxygen as acceptor 
        EC 1.1.4       [+]    With a disulfide as acceptor 
        EC 1.1.5       [+]    With a quinone or similar compound as acceptor 
        EC 1.1.7       [+]    With an iron-sulfur protein as acceptor 
        EC 1.1.9       [+]    With a copper protein as acceptor 
        EC 1.1.98       [+]    With other, known, physiological acceptors 
        EC 1.1.99       [+]    With unknown physiological acceptors 
    EC 1.2  [+]      
        EC 1.2.1       [+]    With NAD+ or NADP+ as acceptor 
        EC 1.2.2       [+]    With a cytochrome as acceptor 
        EC 1.2.3       [+]    With oxygen as acceptor 
        EC 1.2.4       [+]    With a disulfide as acceptor 
        EC 1.2.5       [+]    With a quinone or similar compound as acceptor 
        EC 1.2.7       [+]    With an iron-sulfur protein as acceptor 
        EC 1.2.99       [+]    With unknown physiological acceptors 
    EC 1.3  [+]      
        EC 1.3.1       [+]    With NAD+ or NADP+ as acceptor 
        EC 1.3.2       [+]    With a cytochrome as acceptor 
        EC 1.3.3       [+]    With oxygen as acceptor 
        EC 1.3.4       [+]    With a disulfide as acceptor 
        EC 1.3.5       [+]    With a quinone or related compound as acceptor 
        EC 1.3.7       [+]    With an iron-sulfur protein as acceptor 
        EC 1.3.8       [+]    With a flavin as acceptor 
        EC 1.3.98       [+]    With other, known, physiological acceptors 
        EC 1.3.99       [+]    With unknown physiological acceptors 
    EC 1.4  [+]      
        EC 1.4.1       [+]    With NAD+ or NADP+ as acceptor 
        EC 1.4.2       [+]    With a cytochrome as acceptor 
        EC 1.4.3       [+]    With oxygen as acceptor 
        EC 1.4.4       [+]    With a disulfide as acceptor 
        EC 1.4.5       [+]    With a quinone or other compound as acceptor 
        EC 1.4.7       [+]    With an iron-sulfur protein as acceptor 
        EC 1.4.9       [+]    With a copper protein as acceptor 
        EC 1.4.99       [+]    With unknown physiological acceptors 
    EC 1.5  [+]      
        EC 1.5.1       [+]    With NAD+ or NADP+ as acceptor 
        EC 1.5.3       [+]    With oxygen as acceptor 
        EC 1.5.4       [+]    With a disulfide as acceptor 
        EC 1.5.5       [+]    With a quinone or similar compound as acceptor 
        EC 1.5.7       [+]    With an iron-sulfur protein as acceptor 
        EC 1.5.8       [+]    With a flavin or flavoprotein as acceptor 
        EC 1.5.98       [+]    With other, known, physiological acceptors 
        EC 1.5.99       [+]    With unknown physiological acceptors 
    EC 1.6  [+]      
        EC 1.6.1       [+]    With NAD+ or NADP+ as acceptor 
        EC 1.6.2       [+]    With a heme protein as acceptor 
        EC 1.6.3       [+]    With oxygen as acceptor 
        EC 1.6.4       [+]    With a disulfide as acceptor (deleted sub-subclass) 
        EC 1.6.5       [+]    With a quinone or similar compound as acceptor 
        EC 1.6.6       [+]    With a nitrogenous group as acceptor 
        EC 1.6.7       [+]    With an iron-sulfur protein as acceptor (deleted sub-subclass) 
        EC 1.6.8       [+]    With a flavin as acceptor (deleted sub-subclass) 
        EC 1.6.99       [+]    With unknown physiological acceptors 
    EC 1.7  [+]      
        EC 1.7.1       [+]    With NAD+ or NADP+ as acceptor 
        EC 1.7.2       [+]    With a cytochrome as acceptor 
        EC 1.7.3       [+]    With oxygen as acceptor 
        EC 1.7.5       [+]    With a quinone or similar compound as acceptor 
        EC 1.7.6       [+]    With a nitrogenous group as acceptor 
        EC 1.7.7       [+]    With an iron-sulfur protein as acceptor 
        EC 1.7.9       [+]    With a copper protein as acceptor 
        EC 1.7.99       [+]    With unknown physiological acceptors 
    EC 1.8  [+]      
        EC 1.8.1       [+]    With NAD+ or NADP+ as acceptor 
        EC 1.8.2       [+]    With a cytochrome as acceptor 
        EC 1.8.3       [+]    With oxygen as acceptor 
        EC 1.8.4       [+]    With a disulfide as acceptor 
        EC 1.8.5       [+]    With a quinone or similar compound as acceptor 
        EC 1.8.6       [+]    With a nitrogenous group as acceptor (deleted sub-subclass) 
        EC 1.8.7       [+]    With an iron-sulfur protein as acceptor 
        EC 1.8.98       [+]    With other, known, physiological acceptors 
        EC 1.8.99       [+]    With unknown physiological acceptors 
    EC 1.9  [+]      
        EC 1.9.3       [+]    With oxygen as acceptor 
        EC 1.9.6       [+]    With a nitrogenous group as acceptor 
        EC 1.9.98       [+]    With other, known, physiological acceptors 
        EC 1.9.99       [+]    With unknown physiological acceptors 
    EC 1.10  [+]      
        EC 1.10.1       [+]    With NAD+ or NADP+ as acceptor 
        EC 1.10.2       [+]    With a cytochrome as acceptor 
        EC 1.10.3       [+]    With oxygen as acceptor 
        EC 1.10.5       [+]    With a quinone or related compound as acceptor 
        EC 1.10.9       [+]    With a copper protein as acceptor 
        EC 1.10.99       [+]    With unknown physiological acceptors 
    EC 1.11  [+]      
        EC 1.11.1       [+]      
        EC 1.11.2       [+]      
    EC 1.12  [+]      
        EC 1.12.1       [+]    With NAD+ or NADP+ as acceptor 
        EC 1.12.2       [+]    With a cytochrome as acceptor 
        EC 1.12.5       [+]    With a quinone or similar compound as acceptor 
        EC 1.12.7       [+]    With an iron-sulfur protein as acceptor 
        EC 1.12.98       [+]    With other, known, physiological acceptors 
        EC 1.12.99       [+]    With unknown physiological acceptors 
    EC 1.13  [+]      
        EC 1.13.11       [+]    With incorporation of two atoms of oxygen 
        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 1.14.1       [+]    With NADH or NADPH as one donor (deleted sub-subclass) 
        EC 1.14.2       [+]    With ascorbate as one donor (deleted sub-subclass) 
        EC 1.14.3       [+]    With reduced pteridine as one donor (deleted sub-subclass) 
        EC 1.14.11       [+]    With 2-oxoglutarate as one donor, and incorporation of one atom of oxygen into each donor 
        EC 1.14.12       [+]    With NADH or NADPH as one donor, and incorporation of two atoms of oxygen into the other donor 
        EC 1.14.13       [+]    With NADH or NADPH as one donor, and incorporation of one atom of oxygen into the other donor 
        EC 1.14.14       [+]    With reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen into the other donor 
        EC 1.14.15       [+]    With reduced iron-sulfur protein as one donor, and incorporation of one atom of oxygen into the other donor 
        EC 1.14.16       [+]    With reduced pteridine as one donor, and incorporation of one atom of oxygen into the other donor 
        EC 1.14.17       [+]    With reduced ascorbate as one donor, and incorporation of one atom of oxygen into the other donor 
        EC 1.14.18       [+]    With another compound as one donor, and incorporation of one atom of oxygen into the other donor 
        EC 1.14.19       [+]    With oxidation of a pair of donors resulting in the reduction of O2 to two molecules of water 
        EC 1.14.20       [+]    With 2-oxoglutarate as one donor, and the other dehydrogenated 
        EC 1.14.21       [+]    With NADH or NADPH as one donor, and the other dehydrogenated 
        EC 1.14.99       [+]    Miscellaneous 
    EC 1.15  [+]      
        EC 1.15.1       [+]    Acting on superoxide as acceptor (only sub-subclass identified to date) 
    EC 1.16  [+]      
        EC 1.16.1       [+]    With NAD+ or NADP+ as acceptor 
        EC 1.16.3       [+]    With oxygen as acceptor 
        EC 1.16.5       [+]    With a quinone or similar compound as acceptor 
        EC 1.16.8       [+]    With a flavin as acceptor 
        EC 1.16.9       [+]    With a copper protein as acceptor 
        EC 1.16.98       [+]    With other, known, physiological acceptors 
    EC 1.17  [+]      
        EC 1.17.1       [+]    With NAD+ or NADP+ as acceptor 
        EC 1.17.2       [+]    With a cytochrome as acceptor 
        EC 1.17.3       [+]    With oxygen as acceptor 
        EC 1.17.4       [+]    With a disulfide as acceptor 
        EC 1.17.5       [+]    With a quinone or similar compound as acceptor 
        EC 1.17.7       [+]    With an iron-sulfur protein as acceptor 
        EC 1.17.8       [+]    With a flavin as acceptor 
        EC 1.17.98       [+]    With other, known, physiological acceptors 
        EC 1.17.99       [+]    With unknown physiological acceptors 
    EC 1.18  [+]      
        EC 1.18.1       [+]    With NAD+ or NADP+ as acceptor 
        EC 1.18.2       [+]    With dinitrogen as acceptor (deleted sub-subclass) 
        EC 1.18.3       [+]    With H+ as acceptor (deleted sub-subclass) 
        EC 1.18.6       [+]    With dinitrogen as acceptor 
        EC 1.18.96       [+]    With other, known, acceptors (deleted sub-subclass) 
        EC 1.18.99       [+]    With H+ as acceptor (deleted sub-subclass) 
    EC 1.19  [+]      
        EC 1.19.1       [+]    With NAD+ or NADP+ as acceptor 
        EC 1.19.6       [+]    With dinitrogen as acceptor 
    EC 1.20  [+]      
        EC 1.20.1       [+]    With NAD+ or NADP+ as acceptor 
        EC 1.20.2       [+]    With a cytochrome as acceptor 
        EC 1.20.4       [+]    With disulfide as acceptor 
        EC 1.20.9       [+]    With a copper protein as acceptor 
        EC 1.20.98       [+]    With other, known, physiological acceptors 
        EC 1.20.99       [+]    With unknown physiological acceptors 
    EC 1.21  [+]      
        EC 1.21.3       [+]    With oxygen as acceptor 
        EC 1.21.4       [+]    With a disulfide as acceptor 
        EC 1.21.98       [+]    With other, known, physiological acceptors 
        EC 1.21.99       [+]    With unknown physiological acceptors 
    EC 1.22  [+]      
        EC 1.22.1       [+]    With NAD+ or NADP+ as acceptor 
    EC 1.23  [+]      
        EC 1.23.1       [+]    With NADH or NADPH as donor 
        EC 1.23.5       [+]    With a quinone or similar compound as acceptor 
    EC 1.97  [+]      
        EC 1.97.1       [+]    Sole sub-subclass for oxidoreductases that do not belong in the other subclasses 
    EC 1.98  [+]      
    EC 1.99  [+]      
        EC 1.99.1       [+]    Hydroxylases (now covered by EC 1.14) 
        EC 1.99.2       [+]    Oxygenases (now covered by EC 1.13) 
EC 2 [+]   
EC 3 [+]   
EC 4 [+]   
EC 5 [+]   
EC 6 [+]   
EC 7 [+]   


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