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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)
1.14 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
1.21.99.1 β-cyclopiazonate dehydrogenase
1.21.99.2 cyclic dehypoxanthinyl futalosine synthase
1.21.99.3 thyroxine 5-deiodinase
1.21.99.4 thyroxine 5′-deiodinase
1.21.99.5 tetrachloroethene reductive dehalogenase
1.22 Acting on halogen in donors
1.23 Reducing C-O-C group 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
2.8.2.1 aryl sulfotransferase
2.8.2.2 alcohol sulfotransferase
2.8.2.3 amine sulfotransferase
2.8.2.4 estrone sulfotransferase
2.8.2.5 chondroitin 4-sulfotransferase
2.8.2.6 choline sulfotransferase
2.8.2.7 UDP-
N
-acetylgalactosamine-4-sulfate sulfotransferase
2.8.2.8 [heparan sulfate]-glucosamine
N
-sulfotransferase
2.8.2.9 tyrosine-ester sulfotransferase
2.8.2.10
Renilla
-luciferin sulfotransferase
2.8.2.11 galactosylceramide sulfotransferase
2.8.2.12 created 1972, deleted 2001
2.8.2.13 psychosine sulfotransferase
2.8.2.14 bile-salt sulfotransferase
2.8.2.15 steroid sulfotransferase
2.8.2.16 thiol sulfotransferase
2.8.2.17 chondroitin 6-sulfotransferase
2.8.2.18 cortisol sulfotransferase
2.8.2.19 triglucosylalkylacylglycerol sulfotransferase
2.8.2.20 protein-tyrosine sulfotransferase
2.8.2.21 keratan sulfotransferase
2.8.2.22 aryl-sulfate sulfotransferase
2.8.2.23 [heparan sulfate]-glucosamine 3-sulfotransferase 1
2.8.2.24 aromatic desulfoglucosinolate sulfotransferase
2.8.2.25 flavonol 3-sulfotransferase
2.8.2.26 quercetin-3-sulfate 3′-sulfotransferase
2.8.2.27 quercetin-3-sulfate 4′-sulfotransferase
2.8.2.28 quercetin-3,3′-bissulfate 7-sulfotransferase
2.8.2.29 [heparan sulfate]-glucosamine 3-sulfotransferase 2
2.8.2.30 [heparan sulfate]-glucosamine 3-sulfotransferase 3
2.8.2.31 petromyzonol sulfotransferase
2.8.2.32 scymnol sulfotransferase
2.8.2.33
N
-acetylgalactosamine 4-sulfate 6-
O
-sulfotransferase
2.8.2.34 glycochenodeoxycholate sulfotransferase
2.8.2.35 dermatan 4-sulfotransferase
2.8.2.36 desulfo-A47934 sulfotransferase
2.8.2.37 trehalose 2-sulfotransferase
2.8.2.38 aliphatic desulfoglucosinolate sulfotransferase
2.8.2.39 hydroxyjasmonate sulfotransferase
2.8.2.40 ω-hydroxy-β-dihydromenaquinone-9 sulfotransferase
2.8.3 CoA-transferases
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