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EC Tree
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-NH
2
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 a 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
1.12.1 With NAD
+
or NADP
+
as acceptor
1.12.2 With a cytochrome as acceptor
1.12.5 With a quinone or similar compound as acceptor
1.12.7 With an iron-sulfur protein as acceptor
1.12.98 With other, known, physiological acceptors
1.12.99 With unknown physiological acceptors
1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)
1.13.1. undefined
1.13.11 With incorporation of two atoms of oxygen
1.13.12 With incorporation of one atom of oxygen (internal monooxygenases or internal mixed-function oxidases)
1.13.99 Miscellaneous
1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen
1.15 Acting on superoxide as acceptor
1.16 Oxidizing metal ions
1.17 Acting on CH or CH
2
groups
1.18 Acting on iron-sulfur proteins as donors
1.19 Acting on reduced flavodoxin as donor
1.20 Acting on phosphorus or arsenic in donors
1.21 Catalysing the reaction X-H + Y-H = X-Y
1.21.1 With NAD
+
or NADP
+
as acceptor
1.21.3 With oxygen as acceptor
1.21.4 With a disulfide as acceptor
1.21.98 With other, known, physiological acceptors
1.21.99 With unknown physiological acceptors
1.22 Acting on halogen in donors
1.23 Reducing C-O-C group as acceptor
1.23.1 With NADH or NADPH as donor
1.23.5 With a quinone or similar compound as acceptor
1.97 Other oxidoreductases
1.98 Enzymes using H
2
as reductant (deleted subclass)
1.99 Other enzymes using O
2
as oxidant (deleted subclass)
2 Transferases
2.1 Transferring one-carbon groups
2.2 Transferring aldehyde or ketonic groups
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
2.8.1 Sulfurtransferases
2.8.2 Sulfotransferases
2.8.3 CoA-transferases
2.8.3.1 propionate CoA-transferase
2.8.3.2 oxalate CoA-transferase
2.8.3.3 malonate CoA-transferase
2.8.3.4 created 1961, deleted 1964
2.8.3.5 3-oxoacid CoA-transferase
2.8.3.6 3-oxoadipate CoA-transferase
2.8.3.7 succinate—citramalate CoA-transferase
2.8.3.8 acetate CoA-transferase
2.8.3.9 butyrate—acetoacetate CoA-transferase
2.8.3.10 citrate CoA-transferase
2.8.3.11 citramalate CoA-transferase
2.8.3.12 glutaconate CoA-transferase
2.8.3.13 succinate—hydroxymethylglutarate CoA-transferase
2.8.3.14 5-hydroxypentanoate CoA-transferase
2.8.3.15 succinyl-CoA:(
R
)-benzylsuccinate CoA-transferase
2.8.3.16 formyl-CoA transferase
2.8.3.17 3-(aryl)acryloyl-CoA:(
R
)-3-(aryl)lactate CoA-transferase
2.8.3.18 succinyl-CoA:acetate CoA-transferase
2.8.3.19 CoA:oxalate CoA-transferase
2.8.3.20 succinyl-CoA—
D
-citramalate CoA-transferase
2.8.3.21
L
-carnitine CoA-transferase
2.8.3.22 succinyl-CoA—
L
-malate CoA-transferase
2.8.3.23 caffeate CoA-transferase
2.8.3.24 (
R
)-2-hydroxy-4-methylpentanoate CoA-transferase
2.8.3.25 bile acid CoA-transferase
2.8.3.26 succinyl-CoA:mesaconate CoA transferase
2.8.3.27 propanoyl-CoA:succinate CoA transferase
2.8.3.28 phenylsuccinyl-CoA transferase
2.8.4 Transferring alkylthio groups
2.8.5 Thiosulfotransferases
2.9 Transferring selenium-containing groups
2.10 Transferring molybdenum- or tungsten-containing groups
3 Hydrolases
4 Lyases
5 Isomerases
6 Ligases
7 Translocases