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| 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 |
| 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 3.4.4.1 | pepsin. Now EC 3.4.23.1, pepsin A | ||
| EC 3.4.4.2 | pepsin B. Now EC 3.4.23.2, pepsin B | ||
| EC 3.4.4.3 | rennin. Now EC 3.4.23.4, chymosin | ||
| EC 3.4.4.4 | trypsin. Now EC 3.4.21.4, trypsin | ||
| EC 3.4.4.5 | chymotrypsin. Now EC 3.4.21.1, chymotrypsin | ||
| EC 3.4.4.6 | chymotrypsin B. Now EC 3.4.21.1, chymotrypsin | ||
| EC 3.4.4.7 | elastase. Now covered by EC 3.4.21.36, pancreatic elastase and EC 3.4.21.37, leukocyte elastase | ||
| EC 3.4.4.8 | enteropeptidase. Now EC 3.4.21.9, enteropeptidase | ||
| EC 3.4.4.9 | cathepsin C. Now EC 3.4.14.1, dipeptidyl-peptidase I | ||
| EC 3.4.4.10 | papain. Now EC 3.4.22.2, papain | ||
| EC 3.4.4.11 | chymopapain. Now EC 3.4.22.6, chymopapain | ||
| EC 3.4.4.12 | ficin. Now EC 3.4.22.3, ficain | ||
| EC 3.4.4.13 | thrombin. Now EC 3.4.21.5, thrombin | ||
| EC 3.4.4.14 | plasmin. Now EC 3.4.21.7, plasmin | ||
| EC 3.4.4.15 | renin. Now EC 3.4.23.15, renin | ||
| EC 3.4.4.16 | subtilopeptidase A. Now covered by the microbial serine proteinases EC 3.4.21.62 (subtilisin), EC 3.4.21.63 (oryzin), EC 3.4.21.64 (endopeptidase K), EC 3.4.21.65 (thermomycolin), EC 3.4.21.66 (thermitase) and EC 3.4.21.67 (ndopeptidase So) | ||
| EC 3.4.4.17 | aspergillopeptidase A. Now covered by the microbial aspartic proteinases 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 3.4.21.103 (physarolisin), EC 3.4.23.28 (acrocylindropepsin), EC 3.4.23.29 (polyporopepsin) and EC 3.4.23.30 (pycnoporopepsin) | ||
| EC 3.4.4.18 | streptococcus peptidase A. Now EC 3.4.22.10, streptopain | ||
| EC 3.4.4.19 | clostridiopeptidase A. Now EC 3.4.24.3, microbial collagenase | ||
| EC 3.4.4.20 | clostridiopeptidase B. Now EC 3.4.22.8, clostripain | ||
| EC 3.4.4.21 | kallikrein. Now EC 3.4.21.34 (plasma kallikrein) and EC 3.4.21.35 (tissue kallikrein) | ||
| EC 3.4.4.22 | now EC 3.4.23.3, gastricsin | ||
| EC 3.4.4.23 | now EC 3.4.23.5, cathepsin D | ||
| EC 3.4.4.24 | now covered by EC 3.4.22.32 (stem bromelain) and EC 3.4.22.33 (fruit bromelain) | ||
| EC 3.4.4.25 | Streptomyces alkalophilic keratinase | ||
| 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 3.4.24 | [+] 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 | [+] |