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 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 3.4.23       []    Aspartic endopeptidases 
                EC 3.4.23.1                      pepsin A 
                EC 3.4.23.2                      pepsin B 
                EC 3.4.23.3                      gastricsin 
                EC 3.4.23.4                      chymosin 
                EC 3.4.23.5                      cathepsin D 
                EC 3.4.23.6                      now EC 3.4.23.30 pycnoporopepsin 
                EC 3.4.23.7                      Penicillium janthinellum acid proteinase. Now EC 3.4.23.20, penicillopepsin 
                EC 3.4.23.8                      yeast proteinase A. Now EC 3.4.23.25, saccharopepsin 
                EC 3.4.23.9                      Rhizopus acid proteinase. Now EC 3.4.23.21, rhizopuspepsin 
                EC 3.4.23.10                      Endothia acid proteinase. Now EC 3.4.23.22, endothiapepsin 
                EC 3.4.23.11                       thyroid aspartic proteinase 
                EC 3.4.23.12                      nepenthesin 
                EC 3.4.23.13                      Lotus aspartic proteinase 
                EC 3.4.23.14                       sorghum aspartic proteinase 
                EC 3.4.23.15                      renin 
                EC 3.4.23.16                      HIV-1 retropepsin 
                EC 3.4.23.17                      pro-opiomelanocortin converting enzyme 
                EC 3.4.23.18                      aspergillopepsin I 
                EC 3.4.23.19                      aspergillopepsin II 
                EC 3.4.23.20                      penicillopepsin 
                EC 3.4.23.21                      rhizopuspepsin 
                EC 3.4.23.22                      endothiapepsin 
                EC 3.4.23.23                      mucorpepsin 
                EC 3.4.23.24                      candidapepsin 
                EC 3.4.23.25                      saccharopepsin 
                EC 3.4.23.26                      rhodotorulapepsin 
                EC 3.4.23.27                      physaropepsin. Now EC 3.4.21.103, physarolisin 
                EC 3.4.23.28                      acrocylindropepsin 
                EC 3.4.23.29                      polyporopepsin 
                EC 3.4.23.30                      pycnoporopepsin 
                EC 3.4.23.31                      scytalidopepsin A 
                EC 3.4.23.32                      scytalidopepsin B 
                EC 3.4.23.33                      xanthomonapepsin. Now EC 3.4.21.101, xanthomonalisin 
                EC 3.4.23.34                      cathepsin E 
                EC 3.4.23.35                      barrierpepsin 
                EC 3.4.23.36                      signal peptidase II 
                EC 3.4.23.37                      pseudomonapepsin. Now EC 3.4.21.100, pseudomonalisin 
                EC 3.4.23.38                      plasmepsin I 
                EC 3.4.23.39                      plasmepsin II 
                EC 3.4.23.40                      phytepsin 
                EC 3.4.23.41                      yapsin 1 
                EC 3.4.23.42                      thermopsin 
                EC 3.4.23.43                      prepilin peptidase 
                EC 3.4.23.44                      nodavirus endopeptidase 
                EC 3.4.23.45                      memapsin 1 
                EC 3.4.23.46                      memapsin 2 
                EC 3.4.23.47                      HIV-2 retropepsin 
                EC 3.4.23.48                      plasminogen activator Pla 
                EC 3.4.23.49                      omptin 
                EC 3.4.23.50                      human endogenous retrovirus K endopeptidase 
                EC 3.4.23.51                      HycI peptidase 
                EC 3.4.23.52                      preflagellin peptidase 
        EC 3.4.24       [+]    Metalloendopeptidases 
        EC 3.4.25       [+]    Threonine 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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