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1 Oxidoreductases

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

2.5.1 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

2.6.3.1 oximinotransferase

2.6.99 Transferring other 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

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Release 2023.1 (January 2023)