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EC Tree
1 Oxidoreductases
1.1 Acting on the CH-OH group of donors
1.1.1 With NAD
+
or NADP
+
as acceptor
1.1.2 With a cytochrome as acceptor
1.1.3 With oxygen as acceptor
1.1.4 With a disulfide as acceptor
1.1.5 With a quinone or similar compound as acceptor
1.1.7 With an iron-sulfur protein as acceptor
1.1.9 With a copper protein as acceptor
1.1.98 With other, known, physiological acceptors
1.1.98.1 alcohol dehydrogenase (azurin)
1.1.98.2 glucose-6-phosphate dehydrogenase (coenzyme-F
420
)
1.1.98.3 decaprenylphospho-β-
D
-ribofuranose 2-dehydrogenase
1.1.98.4 F
420
H
2
:quinone oxidoreductase
1.1.98.5 secondary-alcohol dehydrogenase (coenzyme-F
420
)
1.1.98.6 ribonucleoside-triphosphate reductase (formate)
1.1.98.7 serine-type anaerobic sulfatase-maturating enzyme
1.1.99 With unknown physiological acceptors
1.1.99.1 choline dehydrogenase
1.1.99.2
L
-2-hydroxyglutarate dehydrogenase
1.1.99.3 gluconate 2-dehydrogenase (acceptor)
1.1.99.4 dehydrogluconate dehydrogenase
1.1.99.5 glycerol-3-phosphate dehydrogenase
1.1.99.6
D
-lactate dehydrogenase (acceptor)
1.1.99.7 lactate—malate transhydrogenase
1.1.99.8 alcohol dehydrogenase (acceptor)
1.1.99.9 pyridoxine 5-dehydrogenase
1.1.99.10 glucose dehydrogenase (acceptor)
1.1.99.11 fructose 5-dehydrogenase
1.1.99.12 sorbose dehydrogenase
1.1.99.13 glucoside 3-dehydrogenase (acceptor)
1.1.99.14 glycolate dehydrogenase
1.1.99.15 created 1978, deleted 1980
1.1.99.16 malate dehydrogenase (acceptor)
1.1.99.17 created 1982, deleted 2003
1.1.99.18 cellobiose dehydrogenase (acceptor)
1.1.99.19 uracil dehydrogenase
1.1.99.20 alkan-1-ol dehydrogenase (acceptor)
1.1.99.21
D
-sorbitol dehydrogenase (acceptor)
1.1.99.22 glycerol dehydrogenase (acceptor)
1.1.99.23 polyvinyl-alcohol dehydrogenase (acceptor)
1.1.99.24 hydroxyacid-oxoacid transhydrogenase
1.1.99.25 quinate dehydrogenase (pyrroloquinoline-quinone)
1.1.99.26 3-hydroxycyclohexanone dehydrogenase
1.1.99.27 (
R
)-pantolactone dehydrogenase (flavin)
1.1.99.28 glucose-fructose oxidoreductase
1.1.99.29 pyranose dehydrogenase (acceptor)
1.1.99.30 2-oxo-acid reductase
1.1.99.31 (
S
)-mandelate dehydrogenase
1.1.99.32
L
-sorbose 1-dehydrogenase
1.1.99.33 formate dehydrogenase (acceptor)
1.1.99.34 glucose-6-phosphate dehydrogenase (coenzyme-F
420
)
1.1.99.35 soluble quinoprotein glucose dehydrogenase
1.1.99.36 alcohol dehydrogenase (nicotinoprotein)
1.1.99.37 methanol dehydrogenase (nicotinoprotein)
1.1.99.38 2-deoxy-
scyllo
-inosamine dehydrogenase (AdoMet-dependent)
1.1.99.39
D
-2-hydroxyglutarate dehydrogenase
1.1.99.40 (
R
)-2-hydroxyglutarate—pyruvate transhydrogenase
1.1.99.41 3-hydroxy-1,2-didehydro-2,3-dihydrotabersonine reductase
1.1.99.42 4-pyridoxic acid dehydrogenase
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
1.22 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)
1.98.1. undefined
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
2.9 Transferring selenium-containing groups
2.10 Transferring molybdenum- or tungsten-containing groups
3 Hydrolases
4 Lyases
5 Isomerases
6 Ligases
7 Translocases