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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
1.5.1 With NAD
+
or NADP
+
as acceptor
1.5.3 With oxygen as acceptor
1.5.3.1 sarcosine oxidase (formaldehyde-forming)
1.5.3.2
N
-methyl-
L
-amino-acid oxidase
1.5.3.3 created 1961, deleted 1972
1.5.3.4
N
6
-methyl-lysine oxidase
1.5.3.5 (
S
)-6-hydroxynicotine oxidase
1.5.3.6 (
R
)-6-hydroxynicotine oxidase
1.5.3.7
L
-pipecolate oxidase
1.5.3.8 created 1989, deleted 1992
1.5.3.9 created 1989, modified 1999, deleted 2002
1.5.3.10 dimethylglycine oxidase
1.5.3.11 polyamine oxidase
1.5.3.12 dihydrobenzophenanthridine oxidase
1.5.3.13
N
1
-acetylpolyamine oxidase
1.5.3.14 polyamine oxidase (propane-1,3-diamine-forming)
1.5.3.15
N
8
-acetylspermidine oxidase (propane-1,3-diamine-forming)
1.5.3.16 spermine oxidase
1.5.3.17 non-specific polyamine oxidase
1.5.3.18
L
-saccharopine oxidase
1.5.3.19 4-methylaminobutanoate oxidase (formaldehyde-forming)
1.5.3.20
N
-alkylglycine oxidase
1.5.3.21 4-methylaminobutanoate oxidase (methylamine-forming)
1.5.3.22 coenzyme F
420
H
2
oxidase
1.5.3.23 glyphosate oxidoreductase
1.5.3.24 sarcosine oxidase (5,10-methylenetetrahydrofolate-forming)
1.5.3.25 fructosyl amine oxidase (glucosone-forming)
1.5.3.26 fructosyl amine oxidase (fructosamine-forming)
1.5.4 With a disulfide as acceptor
1.5.5 With a quinone or similar compound as acceptor
1.5.7 With an iron-sulfur protein as acceptor
1.5.8 With a flavin or flavoprotein as acceptor
1.5.98 With other, known, physiological acceptors
1.5.99 With unknown physiological acceptors
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
1.13 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)
1.99 Other enzymes using O
2
as oxidant (deleted subclass)
2 Transferases
3 Hydrolases
3.1 Acting on ester bonds
3.2 Glycosylases
3.2.1 Glycosidases, i.e. enzymes that hydrolyse
O-
and
S-
glycosyl compounds
3.2.2 Hydrolysing
N-
glycosyl compounds
3.2.3 Hydrolysing S-glycosyl compounds (deleted sub-subclass)
3.3 Acting on ether bonds
3.4 Acting on peptide bonds (peptidases)
3.5 Acting on carbon-nitrogen bonds, other than peptide bonds
3.6 Acting on acid anhydrides
3.7 Acting on carbon-carbon bonds
3.8 Acting on halide bonds
3.9 Acting on phosphorus-nitrogen bonds
3.10 Acting on sulfur-nitrogen bonds
3.10.1 Acting on sulfur-nitrogen bonds (only sub-subclass identified to date)
3.10.1.1
N
-sulfoglucosamine sulfohydrolase
3.10.1.2 cyclamate sulfohydrolase
3.11 Acting on carbon-phosphorus bonds
3.12 Acting on sulfur-sulfur bonds
3.13 Acting on carbon-sulfur bonds
4 Lyases
5 Isomerases
6 Ligases
7 Translocases