EC Explorer

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EC Tree

1 Oxidoreductases

2.1 Transferring one-carbon groups

2.2 Transferring aldehyde or ketonic groups

2.2.1 Transketolases and transaldolases

2.3 Acyltransferases

2.4 Glycosyltransferases

2.5 Transferring alkyl or aryl groups, other than methyl groups

2.5.1 Transferring alkyl or aryl groups, other than methyl groups (only sub-subclass identified to date)

2.6 Transferring nitrogenous groups

2.6.1 Transaminases

2.6.2 Amidinotransferases (deleted sub-subclass)

2.6.2.1 created 1961, deleted 1965

2.6.3 Oximinotransferases

2.6.99 Transferring other nitrogenous groups

2.7 Transferring phosphorus-containing groups

2.8 Transferring sulfur-containing groups

2.9 Transferring selenium-containing groups

2.9.1 Selenotransferases

2.10 Transferring molybdenum- or tungsten-containing groups

2.10.1 Molybdenumtransferases or tungstentransferases with sulfide groups as acceptors

5.1 Racemases and epimerases

5.2 cis-trans-Isomerases

5.2.1 cis-trans Isomerases (only sub-subclass identified to date)

5.2.1.1 maleate isomerase

5.2.1.2 maleylacetoacetate isomerase

5.2.1.3 retinal isomerase

5.2.1.4 maleylpyruvate isomerase

5.2.1.5 linoleate isomerase

5.2.1.6 furylfuramide isomerase

5.2.1.7 retinol isomerase

5.2.1.8 peptidylprolyl isomerase

5.2.1.9 farnesol 2-isomerase

5.2.1.10 2-chloro-4-carboxymethylenebut-2-en-1,4-olide isomerase

5.2.1.11 created 1992, deleted 2005

5.2.1.12 ζ-carotene isomerase

5.2.1.13 prolycopene isomerase

5.2.1.14 β-carotene isomerase

5.3 Intramolecular oxidoreductases

5.4 Intramolecular transferases

5.5 Intramolecular lyases

5.6 Isomerases altering macromolecular conformation

5.99 Other isomerases

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Release 2023.1 (January 2023)