List of EC numbers

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This article is a list of enzymes, sorted by their EC numbers as determined by the International Union of Biochemistry and Molecular Biology.

Contents 1 EC 1. Oxidoreductases 2 EC 2. Transferases 3 EC 3. Hydrolases 4 EC 4. Lyases 5 EC 5. Isomerases 6 EC 6. Ligases

[edit] EC 1. Oxidoreductases

• EC 1.1 Acting on the CH-OH group of donors
• EC 1.2 Acting on the aldehyde or oxo group of donors
• EC 1.3 Acting on the CH-CH group of donors
• EC 1.4 Acting on the CH-NH₂ group of donors
• EC 1.5 Acting on the CH-NH group of donors
• EC 1.6 Acting on NADH or NADPH
• EC 1.7 Acting on other nitrogenous compounds as donors
• EC 1.8 Acting on a sulfur group of donors
• EC 1.9 Acting on a heme group of donors
• EC 1.10 Acting on diphenols and related substances as donors
• EC 1.11 Acting on a peroxide as acceptor
• EC 1.12 Acting on hydrogen as donor
• EC 1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)
• EC 1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen
• EC 1.15 Acting on superoxide as acceptor
• EC 1.16 Oxidizing metal ions
• EC 1.17 Acting on CH or CH₂ groups
• EC 1.18 Acting on iron-sulfur proteins as donors
• EC 1.19 Acting on reduced flavodoxin as donor
• EC 1.20 Acting on phosphorus or arsenic in donors
• EC 1.21 Acting on X-H and Y-H to form an X-Y bond
• EC 1.97 Other oxidoreductases
• EC 1.98 Enzymes using H₂ as reductant
• EC 1.99 Other enzymes using O₂ as oxidant

[edit] EC 2. Transferases

• EC 2.1 Transferring One-Carbon Groups
• EC 2.2 Transferring Aldehyde or Ketonic Groups
• EC 2.3 Acyltransferases
• EC 2.4 Glycosyltransferases
• EC 2.5 Transferring Alkyl or Aryl Groups, Other than Methyl Groups
• EC 2.6 Transferring Nitrogenous Groups
• EC 2.7 Transferring Phosphorus-Containing Groups
• EC 2.8 Transferring Sulfur-Containing Groups
• EC 2.9 Transferring Selenium-Containing Groups

[edit] EC 3. Hydrolases

• EC 3.1 Acting on Ester Bonds
• EC 3.2 Glycosylases
• EC 3.3 Acting on Ether Bonds
• EC 3.4 Acting on peptide bonds (Peptidases)
• EC 3.5 Acting on Carbon-Nitrogen Bonds, other than Peptide Bonds
• EC 3.6 Acting on Acid Anhydrides
• EC 3.7 Acting on Carbon-Carbon Bonds
• EC 3.8 Acting on Halide Bonds
• EC 3.9 Acting on Phosphorus-Nitrogen Bonds
• EC 3.10 Acting on Sulfur-Nitrogen Bonds
• EC 3.11 Acting on Carbon-Phosphorus Bonds
• EC 3.12 Acting on Sulfur-Sulfur Bonds
• EC 3.13 Acting on Carbon-Sulfur Bonds

[edit] EC 4. Lyases

• EC 4.1 Carbon-Carbon Lyases
• EC 4.2 Carbon-Oxygen Lyases
• EC 4.3 Carbon-Nitrogen Lyases
• EC 4.4 Carbon-Sulfur Lyases
• EC 4.5 Carbon-Halide Lyases
• EC 4.6 Phosphorus-Oxygen Lyases
• EC 4.99 Other Lyases

[edit] EC 5. Isomerases

• EC 5.1 Racemases and Epimerases
• EC 5.2 cis-trans-Isomerases
• EC 5.3 Intramolecular Oxidoreductases
• EC 5.4 Intramolecular Transferases
• EC 5.5 Intramolecular Lyases
• EC 5.99 Other Isomerases

[edit] EC 6. Ligases

• EC 6.1 Forming Carbon-Oxygen Bonds
• EC 6.2 Forming Carbon-Sulfur Bonds
• EC 6.3 Forming Carbon-Nitrogen Bonds
• EC 6.4 Forming Carbon-Carbon Bonds
• EC 6.5 Forming Phosphoric Ester Bonds
• EC 6.6 Forming Nitrogen—Metal Bonds