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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
1.6.1 With NAD
+
or NADP
+
as acceptor
1.6.2 With a heme protein as acceptor
1.6.3 With oxygen as acceptor
1.6.3.1 NAD(P)H oxidase (H
2
O
2
-forming)
1.6.3.2 NAD(P)H oxidase (H
2
O-forming)
1.6.3.3 NADH oxidase (H
2
O
2
-forming)
1.6.3.4 NADH oxidase (H
2
O-forming)
1.6.3.5 renalase
1.6.4 With a disulfide as acceptor (deleted sub-subclass)
1.6.5 With a quinone or similar compound as acceptor
1.6.6 With a nitrogenous group as acceptor
1.6.7 With an iron-sulfur protein as acceptor (deleted sub-subclass)
1.6.8 With a flavin as acceptor (deleted sub-subclass)
1.6.99 With unknown physiological acceptors
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
1.11.1 Peroxidases
1.11.1.1 NADH peroxidase
1.11.1.2 NADPH peroxidase
1.11.1.3 fatty-acid peroxidase
1.11.1.4 created 1961, deleted 1964, reinstated 1965 as
EC 1.13.1.12
, deleted 1972
1.11.1.5 cytochrome-
c
peroxidase
1.11.1.6 catalase
1.11.1.7 peroxidase
1.11.1.8 iodide peroxidase
1.11.1.9 glutathione peroxidase
1.11.1.10 chloride peroxidase
1.11.1.11
L
-ascorbate peroxidase
1.11.1.12 phospholipid-hydroperoxide glutathione peroxidase
1.11.1.13 manganese peroxidase
1.11.1.14 lignin peroxidase
1.11.1.15 peroxiredoxin
1.11.1.16 versatile peroxidase
1.11.1.17 glutathione amide-dependent peroxidase
1.11.1.18 bromide peroxidase
1.11.1.19 dye decolorizing peroxidase
1.11.1.20 prostamide/prostaglandin F
2α
synthase
1.11.1.21 catalase-peroxidase
1.11.1.22 hydroperoxy fatty acid reductase
1.11.1.23 (
S
)-2-hydroxypropylphosphonic acid epoxidase
1.11.1.24 thioredoxin-dependent peroxiredoxin
1.11.1.25 glutaredoxin-dependent peroxiredoxin
1.11.1.26 NADH-dependent peroxiredoxin
1.11.1.27 glutathione-dependent peroxiredoxin
1.11.1.28 lipoyl-dependent peroxiredoxin
1.11.1.29 mycoredoxin-dependent peroxiredoxin
1.11.2 Peroxygenases
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
3.3 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
3.11 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