Nomenclature Committee of the
International Union of Biochemistry and Molecular Biology (NC-IUBMB)

Enzyme Nomenclature. Recommendations 1992


Transferred Entries

Concordance between numbers used before 1972 and present recommendations.

Old Number
(used prior to 1972)
Present Entry
3.4.1.13.4.11.1 Leucyl aminopeptidase (EC 3.4.1.1 created 1961, deleted 1972)
3.4.1.23.4.11.2 Membrane alanyl aminopeptidase (EC 3.4.1.2 created 1961, deleted 1972)
3.4.1.33.4.11.4 Tripeptide aminopeptidase (EC 3.4.1.3 created 1961, deleted 1972)
3.4.1.43.4.11.5 Prolyl aminopeptidase (EC 3.4.1.4 created 1965, deleted 1972)
3.4.2.13.4.17.1 Carboxypeptidase A (EC 3.4.2.1 created 1961, deleted 1972 [transferred to EC 3.4.12.2, deleted 1978))
3.4.2.23.4.17.2 Carboxypeptidase B (EC 3.4.2.2 created 1961, deleted 1972 [transferred to EC 3.4.12.3, deleted 1978])
3.4.2.33.4.17.4 Gly-Xaa carboxypeptidase (EC 3.4.2.3 created 1961, deleted 1972 [transferred to EC 3.4.12.8, deleted 1978])
3.4.3.13.4.13.18 Cytosol nonspecific dipeptidase (EC 3.4.3.1 created 1961, deleted 1972 [transferred to EC 3.4.13.1, deleted 1978 and transferred to EC 3.4.13.11, deleted 1992])
3.4.3.23.4.13.18 Cytosol nonspecific dipeptidase (EC 3.4.3.2 created 1961, deleted 1972 [transferred to EC 3.4.13.2, deleted 1978 and transferred to EC 3.4.13.11, deleted 1992])
3.4.3.33.4.13.3 Xaa-His dipeptidase (EC 3.4.3.3 created 1961, deleted 1972)
3.4.3.43.4.13.5 Xaa-methyl-His dipeptidase (EC 3.4.3.4 created 1961, deleted 1972)
3.4.3.53.4.13.6 Cys-Gly dipeptidase (EC 3.4.3.5 created 1961, deleted 1972)
3.4.3.63.4.13.18 cytosol nonspecific dipeptidase (EC 3.4.3.6 created 1961, deleted 1972)
3.4.3.73.4.13.9 Xaa-Pro dipeptidase (EC 3.4.3.7 created 1961, deleted 1972)
3.4.4.13.4.23.1 Pepsin A (EC 3.4.4.1 created 1961, deleted 1972)
3.4.4.23.4.23.2 Pepsin B (EC 3.4.4.2 created 1961, deleted 1972)
3.4.4.33.4.23.4 Chymosin (EC 3.4.4.3 created 1961, deleted 1972)
3.4.4.43.4.21.4 Trypsin (EC 3.4.4.4 created 1961, deleted 1972)
3.4.4.53.4.21.1 Chymotrypsin (EC 3.4.4.5 created 1961, deleted 1972)
3.4.4.63.4.21.1 Chymotrypsin (EC 3.4.4.6 created 1961, deleted 1972)
3.4.4.73.4.21.36-37 Elastase (EC 3.4.4.7 created 1961, deleted 1972 [transferred to EC 3.4.21.11, deleted 1984])
3.4.4.83.4.21.9 Enteropeptidase (EC 3.4.4.8 created 1961, deleted 1972)
3.4.4.93.4.14.1 Dipeptidyl-peptidase I (EC 3.4.4.9 created 1961, deleted 1972)
3.4.4.103.4.22.2 Papain (EC 3.4.4.10 created 1961, deleted 1972)
3.4.4.113.4.22.6 Chymopapain (EC 3.4.4.11 created 1961, deleted 1972)
3.4.4.123.4.22.3 Ficain (EC 3.4.4.12 created 1961, deleted 1972)
3.4.4.133.4.21.5 Thrombin (EC 3.4.4.13 created 1961, deleted 1972)
3.4.4.143.4.21.7 Plasmin (EC 3.4.4.14 created 1961, deleted 1972)
3.4.4.153.4.23.15 Renin (EC 3.4.4.15 created 1961, deleted 1972 [transferred to EC 3.4.99.19, deleted 1984])
3.4.4.163.4.21.62-67 Microbial serine proteinases (EC 3.4.4.16 created 1961, deleted 1972 [transferred to EC 3.4.21.14, deleted 1992])
3.4.4.173.4.23.20-30 Microbial aspartic proteinases (EC 3.4.4.17 created 1961, deleted 1972 [transferred to EC 3.4.23.6, deleted 1992])
3.4.4.183.4.22.10 Streptopain (EC 3.4.4.18 created 1961, deleted 1972)
3.4.4.193.4.24.3 Microbial collagenase (EC 3.4.4.19 created 1961, deleted 1972)
3.4.4.203.4.22.8 Clostripain (EC 3.4.4.20 created 1961, deleted 1972)
3.4.4.213.4.21.34 Plasma kallikrein and 3.4.21.35 Tissue kallikrein (EC 3.4.4.21 created 1965, deleted 1981, deleted 1972 (transferred to EC 3.4.21.8, deleted 1981])
3.4.4.223.4.23.3 Gastricsin (EC 3.4.4.22 created 1965, deleted 1972)
3.4.4.233.4.23.5 Cathepsin D (EC 3.4.4.23 created 1965, deleted 1972)
3.4.4.243.4.22.32-33 Bromelain (EC 3.4.4.24 created 1965, deleted 1972 [transferred to EC 3.4.22.4, deleted 1992])
3.4.4.25Deleted entry: Streptomyces alkalophilic keratinase (EC 3.4.4.25 created 1965, deleted 1972)
3.4.12.13.4.16.1 Serine-type carboxypeptidase (EC 3.4.12.1 created 1972, deleted 1978)
3.4.12.23.4.17.1 Carboxypeptidase A (EC 3.4.12.2 created 1972, deleted 1978)
3.4.12.33.4.17.2 Carboxypeptidase B (EC 3.4.12.3 created 1972, deleted 1978)
3.4.12.43.4.16.2 Lysosomal Pro-X carboxypeptidase (EC 3.4.12.4 created 1972, modified 1976, deleted 1978)
3.4.12.53.4.19.10 Acylmuramoyl-Ala peptidase (EC 3.4.12.5 created 1972, deleted 1978 [transferred to EC 3.4.17.7, deleted 1992])
3.4.12.63.4.17.8 Muramoyl-pentapeptidase carboxypeptidase (EC 3.4.12.6 created 1972, deleted 1978)
3.4.12.73.4.17.3 Lysine carboxypeptidase (EC 3.4.12.7 created 1972, deleted 1978)
3.4.12.83.4.17.4 Gly-Xaa carboxypeptidase (EC 3.4.12.8 created 1972, deleted 1978)
3.4.12.9Deleted entry: Aspartate carboxypeptidase (EC 3.4.12.9 created 1972, deleted 1978 [transferred to EC 3.4.17.5, deleted 1992])
3.4.12.103.4.19.9 γ-Glu-X carboxypeptidase (EC 3.4.12.10 created 1972, modified 1976, deleted 1978 [transferred to EC 3.4.22.12, deleted 1992])
3.4.12.113.4.17.6 Alanine carboxypeptidase (EC 3.4.12.11 created 1972, deleted 1978)
3.4.12.123.4.16.1 Serine-type carboxypeptidase (EC 3.4.12.12 created 1972, deleted 1978 [transferred to EC 3.4.16.3, transferred 1992 to EC 3.4.16.1, deleted 1993])
3.4.12.13Deleted entry: γ-Glutamylglutamate carboxypeptidase (EC 3.4.12.13 created 1975, modified 1976, deleted 1978)


Continued with EC 3.4.11 to EC 3.4.15
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