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 3.3  [+]      
    EC 3.4  []      
        EC 3.4.1       [+]    α-Amino-acyl-peptide hydrolases (deleted sub-subclass) 
        EC 3.4.2       [+]    Peptidyl-amino-acid hydrolases (deleted sub-subclass) 
        EC 3.4.3       [+]    Dipeptide hydrolases (deleted sub-subclass) 
        EC 3.4.4       [+]    Peptidyl peptide hydrolases (deleted sub-subclass) 
        EC 3.4.11       [+]    Aminopeptidases 
        EC 3.4.12       [+]    Peptidylamino-acid hydrolases or acylamino-acid hydrolases (deleted sub-subclass) 
        EC 3.4.13       [+]    Dipeptidases 
        EC 3.4.14       [+]    Dipeptidyl-peptidases and tripeptidyl-peptidases 
        EC 3.4.15       [+]    Peptidyl-dipeptidases 
        EC 3.4.16       [+]    Serine-type carboxypeptidases 
        EC 3.4.17       [+]    Metallocarboxypeptidases 
        EC 3.4.18       [+]    Cysteine-type carboxypeptidases 
        EC 3.4.19       [+]    Omega peptidases 
        EC 3.4.21       [+]    Serine endopeptidases 
        EC 3.4.22       []    Cysteine endopeptidases 
                EC 3.4.22.1                      cathepsin B 
                EC 3.4.22.2                      papain 
                EC 3.4.22.3                      ficain 
                EC 3.4.22.4                      bromelain (stem). Now EC 3.4.22.32 (stem bromelain) and EC 3.4.22.33 (fruit bromelain) 
                EC 3.4.22.5                      bromelain (juice). Now EC 3.4.22.32 (stem bromelain) and EC 3.4.22.33 (fruit bromelain) 
                EC 3.4.22.6                      chymopapain 
                EC 3.4.22.7                      asclepain 
                EC 3.4.22.8                      clostripain 
                EC 3.4.22.9                      yeast proteinase B. Now EC 3.4.21.48, cerevisin 
                EC 3.4.22.10                      streptopain 
                EC 3.4.22.11                      insulinase. Now EC 3.4.24.56, insulysin 
                EC 3.4.22.12                      γ-glutamyl hydrolase. Now EC 3.4.19.9, γ-glutamyl hydrolase 
                EC 3.4.22.13                       staphylococcal cysteine proteinase 
                EC 3.4.22.14                      actinidain 
                EC 3.4.22.15                      cathepsin L 
                EC 3.4.22.16                      cathepsin H 
                EC 3.4.22.17                      calpain. Now EC 3.4.22.53, calpain-2 
                EC 3.4.22.18                      prolyl endopeptidase (thiol-dependent). Now EC 3.4.21.26, prolyl oligopeptidase 
                EC 3.4.22.19                      endo-oligopeptidase. Now EC 3.4.24.15, thimet oligopeptidase 
                EC 3.4.22.20                       dinorphin-converting enzyme 
                EC 3.4.22.21                      yeast cysteine proteinase E. Now EC 3.4.25.1, proteasome endopeptidase complex 
                EC 3.4.22.22                      yeast cysteine proteinase D. Now EC 3.4.24.37, saccharolysin 
                EC 3.4.22.23                      yeast cysteine proteinase F. Now EC 3.4.21.61, kexin 
                EC 3.4.22.24                      cathepsin T 
                EC 3.4.22.25                      glycyl endopeptidase 
                EC 3.4.22.26                      cancer procoagulant 
                EC 3.4.22.27                      cathepsin S 
                EC 3.4.22.28                      picornain 3C 
                EC 3.4.22.29                      picornain 2A 
                EC 3.4.22.30                      caricain 
                EC 3.4.22.31                      ananain 
                EC 3.4.22.32                      stem bromelain 
                EC 3.4.22.33                      fruit bromelain 
                EC 3.4.22.34                      legumain 
                EC 3.4.22.35                      histolysain 
                EC 3.4.22.36                      caspase-1 
                EC 3.4.22.37                      gingipain R 
                EC 3.4.22.38                      cathepsin K 
                EC 3.4.22.39                      adenain 
                EC 3.4.22.40                      bleomycin hydrolase 
                EC 3.4.22.41                      cathepsin F 
                EC 3.4.22.42                      cathepsin O 
                EC 3.4.22.43                      cathepsin V 
                EC 3.4.22.44                      nuclear-inclusion-a endopeptidase 
                EC 3.4.22.45                      helper-component proteinase 
                EC 3.4.22.46                      L-peptidase 
                EC 3.4.22.47                      gingipain K 
                EC 3.4.22.48                      staphopain 
                EC 3.4.22.49                      separase 
                EC 3.4.22.50                      V-cath endopeptidase 
                EC 3.4.22.51                      cruzipain 
                EC 3.4.22.52                      calpain-1 
                EC 3.4.22.53                      calpain-2 
                EC 3.4.22.54                      calpain-3 
                EC 3.4.22.55                      caspase-2 
                EC 3.4.22.56                      caspase-3 
                EC 3.4.22.57                      caspase-4 
                EC 3.4.22.58                      caspase-5 
                EC 3.4.22.59                      caspase-6 
                EC 3.4.22.60                      caspase-7 
                EC 3.4.22.61                      caspase-8 
                EC 3.4.22.62                      caspase-9 
                EC 3.4.22.63                      caspase-10 
                EC 3.4.22.64                      caspase-11 
                EC 3.4.22.65                      peptidase 1 (mite) 
                EC 3.4.22.66                      calicivirin 
                EC 3.4.22.67                      zingipain 
                EC 3.4.22.68                      Ulp1 peptidase 
                EC 3.4.22.69                      SARS coronavirus main proteinase 
                EC 3.4.22.70                      sortase A 
                EC 3.4.22.71                      sortase B 
        EC 3.4.23       [+]    Aspartic endopeptidases 
        EC 3.4.24       [+]    Metalloendopeptidases 
        EC 3.4.25       [+]    Threonine endopeptidases 
        EC 3.4.26       [+]    Glutamic endopeptidases 
        EC 3.4.99       [+]    Endopeptidases of unknown catalytic mechanism (sub-subclass is currently empty) 
    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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