Botany online 1996-2004. No further update, only historical document of botanical science!


Enzymes: EC Nomenclature - 2nd Level
Group Specific Action

This list was taken KEGG: Kyoto Encyclopedia of Genes and Genomes CAUTION: All links connect to the data base of KEEG.

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EC (Enzyme Commission) numbers assigned by IUPAC-IUBMB





1. Oxidoreductases
1.1 Acting on the CH-OH group of donors 1.2 Acting on the aldehyde or oxo group of donors 1.3 Acting on the CH-CH group of donors 1.4 Acting on the CH-NH2 group of donors 1.5 Acting on the CH-NH group of donors 1.6 Acting on NADH or NADPH 1.7 Acting on other nitrogenous compounds as donors 1.8 Acting on a sulfur group of donors 1.9 Acting on heme group of donors 1.10 Acting on diphenols and related substances as donors 1.11 Acting on a peroxide as acceptor 1.12 Acting on hydrogen as donor 1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases) 1.14 Acting on paired donors with incorporation of molecular oxygen 1.15 Acting on superoxide radicals as acceptor 1.16 Oxidizing metal ions 1.17 Acting on -CH2- groups 1.18 Acting on reduced ferredoxin as donor 1.19 Acting on reduced flavodoxin as donor 1.97 Other oxidoreductases
2. Transferases
2.1 Transferring one-carbon groups 2.2 Transferring aldehyde or ketone residues 2.3 Acyltransferases 2.4 Glycosyltransferases 2.5 Transferring alkyl or aryl groups, other than methyl groups 2.6 Transferring nitrogenous groups 2.7 Transferring phosphorus-containing groups 2.8 Transferring sulfur-containing groups 2.9 Transferring other groups
3. Hydrolases
3.1 Acting on ester bonds 3.2 Glycosidases 3.3 Acting on ether bonds 3.4 Acting on peptide bonds (peptidases) 3.5 Acting on carbon-nitrogen bonds, other than peptide bonds 3.6 Acting on acid anhydrides 3.7 Acting on carbon-carbon bonds 3.8 Acting on halide bonds 3.9 Acting on phosphorus-nitrogen bonds 3.10 Acting on sulfur-nitrogen bonds 3.11 Acting on carbon-phosphorus bonds 3.12 Acting on sulfur-sulfur bonds
4. Lyases
4.1 Carbon-carbon lyases 4.2 Carbon-oxygen lyases 4.3 Carbon-nitrogen lyases 4.4 Carbon-sulfur lyases 4.5 Carbon-halide lyases 4.6 Phosphorus-oxygen lyases 4.99 Other lyases
5. Isomerases 5.1 Racemases and epimerases 5.2 cis-trans-Isomerases 5.3 Intramolecular oxidoreductases 5.4 Intramolecular transferases (mutases) 5.5 Intramolecular lyases 5.99 Other isomerases
6. Ligases
6.1 Forming carbon-oxygen bonds 6.2 Forming carbon-sulfur bonds 6.3 Forming carbon-nitrogen bonds 6.4 Forming carbon-carbon bonds 6.5 Forming phosphoric ester bonds
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Peter v. Sengbusch - b-online@botanik.uni-hamburg.de