List of EC numbers (EC 1)

This list contains a list of EC numbers for the first group, EC 1, oxidoreductases, placed in numerical order as determined by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology. All official information is tabulated at the website of the committee.[1] The database is developed and maintained by Andrew McDonald.[2]

EC 1.1 Acting on the CH-OH group of donors[]

EC 1.1.1 With Nicotinamide adenine dinucleotide or NADP as acceptor[]

At present (October 2021) most of the entries from 343 onwards have no Wikipedia articles

EC 1.1.2 With a cytochrome as acceptor[]

*No Wikipedia article

EC 1.1.3 With oxygen as acceptor[]

*No Wikipedia article

EC 1.1.4 With a disulfide as acceptor[]

EC 1.1.5 With a quinone or similar compound as acceptor[]

EC 1.1.9 With a copper protein as acceptor[]

EC 1.1.98 With other, known, acceptors[]

*No Wikipedia article

EC 1.1.99 With unknown physiological acceptors[]

*No Wikipedia article

EC 1.2 Acting on the aldehyde or oxo group of donors[]

EC 1.2.1 With NAD+ or NADP+ as acceptor[]

* No Wikipedia article

EC 1.2.2 With a cytochrome as acceptor[]

EC 1.2.3 With oxygen as acceptor[]

* No Wikipedia article

EC 1.2.4 With a disulfide as acceptor[]

EC 1.2.5 With a quinone or similar compound as acceptor[]

*No Wikipedia article

EC 1.2.7 With an iron-sulfur protein as acceptor[]

*No Wikipedia article

EC 1.2.99: With unknown physiological acceptors[]

*No Wikipedia article

EC 1.3 Acting on the CH-CH group of donors[]

EC 1.3.1 With NAD+ or NADP+ as acceptor[]

*No Wikipedia article

EC 1.3.2 With a cytochrome as acceptor[]

EC 1.3.3 With oxygen as acceptor[]

EC 1.3.5 With a quinone or related compound as acceptor[]

EC 1.3.7 With an iron-sulfur protein as acceptor[]

EC 1.3.8 With a flavin as acceptor[]

*No Wikipedia article

EC 1.3.98 With FMN acceptor[]

*No Wikipedia article

EC 1.3.99 With unknown physiological acceptors[]

*No Wikipedia article

EC 1.4 Acting on the CH-NH2 group of donors[]

EC 1.4.1 With NAD+ or NADP+ as acceptor[]

*No Wikipedia article

EC 1.4.2 With a cytochrome as acceptor[]

EC 1.4.3 With oxygen as acceptor[]

*No Wikipedia article

EC 1.4.4 With a disulfide as acceptor[]

EC 1.4.5 With a quinone or other compound as acceptor[]

EC 1.4.7 With an iron-sulfur protein as acceptor[]

EC 1.4.9 With a copper protein as acceptor[]

EC 1.4.98 With tryptophan tryptophylquinone acceptors[]

EC 1.4.99 With unknown physiological acceptors[]

*No Wikipedia article

EC 1.5 Acting on the CH-NH group of donors[]

EC 1.5.1 With NAD+ or NADP+ as acceptor[]

*No Wikipedia article

EC 1.5.3 With oxygen as acceptor[]

*No Wikipedia article

EC 1.5.4 With a disulfide as acceptor[]

EC 1.5.5 With a quinone or similar compound as acceptor[]

*No Wikipedia article

EC 1.5.7 With an iron-sulfur protein as acceptor[]

*No Wikipedia article

EC 1.5.8 With a flavin or flavoprotein as acceptor[]

EC 1.5.98 With other, known, physiological acceptors[]

EC 1.5.99 With unknown physiological acceptors[]

*No Wikipedia article

EC 1.6 Acting on NADH or NADPH[]

EC 1.6.1 With NAD or NADP as acceptor[]

EC 1.6.2 With a heme protein as acceptor[]

EC 1.6.3 With oxygen as acceptor[]

*No Wikipedia article

EC 1.6.4 With a disulfide as acceptor (deleted sub-class)[]

EC 1.6.5 With a quinone or similar compound as acceptor[]

*No Wikipedia article

EC 1.6.6 With a nitrogenous group as acceptor[]

EC 1.6.7 With an iron-sulfur protein as acceptor (deleted sub-subclass)[]

EC 1.6.8 With a flavin as acceptor (deleted sub-subclass)[]

EC 1.6.99 With unknown physiological acceptors[]

EC 1.7 Acting on other nitrogenous compounds as donors[]

EC 1.7.1 With NAD+ or NADP+ as acceptor[]

EC 1.7.2 With a cytochrome as acceptor[]

*No Wikipedia article

EC 1.7.3 With oxygen as acceptor[]

*No Wikipedia article

EC 1.7.5 With a quinone or similar compound as acceptor[]

EC 1.7.6 With a nitrogenous group as acceptor[]

EC 1.7.7 With an iron-sulfur protein as acceptor[]

EC 1.7.99 With other acceptors[]

EC 1.8 Acting on a sulfur group of donors[]

EC 1.8.1 With NAD+ or NADP+ as acceptor[]

*No Wikipedia article

EC 1.8.2 With a cytochrome as acceptor[]

*No Wikipedia article

EC 1.8.3 With oxygen as acceptor[]

*No Wikipedia article

EC 1.8.4 With a disulfide as acceptor[]

*No Wikipedia article

EC 1.8.5 With a quinone or similar compound as acceptor[]

*No Wikipedia article

EC 1.8.6 With a nitrogenous group as acceptor (deleted sub-subclass)[]

EC 1.8.7 With an iron-sulfur protein as acceptor[]

*No Wikipedia article

EC 1.8.98 With other, known, acceptors[]

EC 1.8.99 With other acceptors[]

*No Wikipedia article

EC 1.9 Acting on a heme group of donors[]

EC 1.9.3 With oxygen as acceptor[]

EC 1.9.6 With a nitrogenous group as acceptor[]

EC 1.9.98 With other, known, physiological acceptors[]

EC 1.9.99 With other acceptors[]

EC 1.10 Acting on diphenols and related substances as donors[]

EC 1.10.1 With NAD+ or NADP+ as acceptor[]

EC 1.10.2 With a cytochrome as acceptor[]

EC 1.10.3 With oxygen as acceptor[]

*No Wikipedia article

EC 1.10.5 With a quinone or related compound as acceptor[]

*No Wikipedia article

EC 1.10.9 With a copper protein as acceptor[]

EC 1.10.99 With unknown physiological acceptors[]

EC 1.11 Acting on a peroxide as acceptor[]

EC 1.11.1 Peroxidases[]

*No Wikipedia article

EC 1.11.2 Peroxygenase[]

*No Wikipedia article

EC 1.12 Acting on hydrogen as donor[]

EC 1.12.1 With NAD+ or NADP+ as acceptor[]

*No Wikipedia article

EC 1.12.2 With a cytochrome as acceptor[]

EC 1.12.5 With a quinone or similar compound as acceptor[]

EC 1.12.7 With an iron-sulfur protein as acceptor[]

EC 1.12.98 With other known acceptors[]

EC 1.12.99 With unknown physiological acceptors[]

EC 1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)[]

EC 1.13.11 With incorporation of two atoms of oxygen[]

*No Wikipedia article

EC 1.13.12 With incorporation of one atom of oxygen (internal monooxygenases or internal mixed function oxidases)[]

*No Wikipedia article

EC 1.13.99 Miscellaneous[]

EC 1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen[]

EC 1.14.1 With NADH or NADPH as one donor (deleted sub-subclass)[]

EC 1.14.2 With ascorbate as one donor (deleted sub-subclass)[]

EC 1.14.3 With reduced pteridine as one donor (deleted sub-subclass)[]

EC 1.14.11 With 2-oxoglutarate as one donor, and incorporation of one atom each of oxygen into both donors[]

EC 1.14.12 With NADH or NADPH as one donor, and incorporation of two atoms of oxygen into one donor[]

*No Wikipedia article

EC 1.14.13 With NADH or NADPH as one donor, and incorporation of one atom of oxygen into the other donor[]

Most of the entries from here on have no Wikipedia articles

EC 1.1.2 With a cytochrome as acceptor[]

EC 1.1.3 With oxygen as acceptor[]

EC 1.1.4 With a disulfide as acceptor[]

EC 1.1.5 With a quinone or similar compound as acceptor[]

EC 1.1.9 With a copper protein as acceptor[]

EC 1.1.98 With other, known, acceptors[]

EC 1.1.99 With other acceptors[]

EC 1.2 Acting on the aldehyde or oxo group of donors[]

EC 1.2.1 With NAD or NADP as acceptor[]

EC 1.2.2 With a cytochrome as acceptor[]

EC 1.2.3 With oxygen as acceptor[]

EC 1.2.4 With a disulfide as acceptor[]


EC 1.2.5 With FAD as acceptor[]

EC 1.2.7 With an iron-sulfur protein as acceptor[]

EC 1.2.99 With other acceptors[]

EC 1.3 Acting on the CH-CH group of donors[]

EC 1.3.1 With NAD or NADP as acceptor[]

EC 1.3.2 With a cytochrome as acceptor[]

EC 1.3.3 With oxygen as acceptor[]

EC 1.3.5 With a quinone or related compound as acceptor[]

EC 1.3.7 With an iron-sulfur protein as acceptor[]

EC 1.3.8 With an FAD as prosthetic group[]

EC 1.3.98 With FMN acceptor[]

EC 1.3.99 With other acceptors[]

EC 1.4 Acting on the CH-NH2 group of donors[]

EC 1.4.1 With NAD or NADP as acceptor[]

EC 1.4.2 With a cytochrome as acceptor[]

EC 1.4.3 With oxygen as acceptor[]

EC 1.4.4 With a disulfide as acceptor[]

EC 1.4.5 With an iron-sulfur flavoprotein as acceptor[]

EC 1.4.7 With an iron-sulfur protein as acceptor[]

EC 1.4.9 With TTQ acceptors[]

EC 1.4.98 With tryptophan tryptophylquinone acceptors[]

EC 1.4.99 With other acceptors[]

EC 1.5 Acting on the CH-NH group of donors[]

EC 1.5.1 With NAD or NADP as acceptor[]

EC 1.5.3 With oxygen as acceptor[]

EC 1.5.4 With a disulfide as acceptor[]

EC 1.5.5 With a quinone or similar compound as acceptor[]

EC 1.5.7 With an iron-sulfur protein as acceptor[]

EC 1.5.8 With a flavin as acceptor[]

EC 1.5.99 With other acceptors[]

EC 1.6 Acting on NADH or NADPH[]

EC 1.6.1 With NAD or NADP as acceptor[]

EC 1.6.2 With a heme protein as acceptor[]

EC 1.6.3 With oxygen as acceptor[]

EC 1.6.4 With a disulfide as acceptor[]

EC 1.6.5 With a quinone or similar compound as acceptor[]

EC 1.6.6 With a nitrogenous group as acceptor[]

EC 1.6.7 With an iron-sulfur protein as acceptor[]

EC 1.6.8 With a flavin as acceptor[]

EC 1.6.99 With other acceptors[]

EC 1.7 Acting on other nitrogenous compounds as donors[]

EC 1.7.1 With NAD+ or NADP+ as acceptor[]

EC 1.7.2 With a cytochrome as acceptor[]

EC 1.7.3 With oxygen as acceptor[]

EC 1.7.5 With miscellaneous acceptors[]

EC 1.7.6 With hydrogen as acceptor[]

EC 1.7.7 With an iron-sulfur protein as acceptor[]

EC 1.7.99 With other acceptors[]

EC 1.8 Acting on a sulfur group of donors[]

EC 1.8.1 With NAD or NADP as acceptor[]

EC 1.8.2 With a cytochrome as acceptor[]

EC 1.8.3 With oxygen as acceptor[]

EC 1.8.4 With a disulfide as acceptor[]

EC 1.8.5 With a quinone or similar compound as acceptor[]

EC 1.8.6 With a nitrogenous group as acceptor[]

EC 1.8.7 With an iron-sulfur protein as acceptor[]

EC 1.8.98 With other, known, acceptors[]

EC 1.8.99 With other acceptors[]

EC 1.9 Acting on a heme group of donors[]

EC 1.9.3 With oxygen as acceptor[]

EC 1.9.6 With a nitrogenous group as acceptor[]

EC 1.9.99 With other acceptors[]

EC 1.10 Acting on diphenols and related substances as donors[]

EC 1.10.1 With NAD or NADP as acceptor[]

EC 1.10.2 With a cytochrome as acceptor[]

EC 1.10.3 With oxygen as acceptor[]

EC 1.10.99 With plastocyanin acceptors[]

EC 1.10.99 With other acceptors[]

EC 1.11 Acting on a peroxide as acceptor[]

EC 1.11.1 Peroxidases[]

EC 1.11.2 Peroxygenase[]

EC 1.12 Acting on hydrogen as donor[]

EC 1.12.1 With NAD or NADP as acceptor[]

EC 1.12.2 With a cytochrome as acceptor[]

EC 1.12.5 With a quinone or similar compound as acceptor[]

EC 1.12.7 With an iron-sulfur protein as acceptor[]

EC 1.12.98 With other known acceptors[]

EC 1.12.99 With other acceptors[]

EC 1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)[]

EC 1.13.1 (transferred to EC 1.13.11)[]

EC 1.13.11 With incorporation of two atoms of oxygen[]

EC 1.13.12 With incorporation of one atom of oxygen (internal monooxygenases or internal mixed function oxidases)[]

EC 1.13.99 Miscellaneous[]

EC 1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen[]

EC 1.14.1 With NADH or NADPH as one donor (deleted sub-subclass)[]

EC 1.14.2 With ascorbate as one donor (deleted sub-subclass)[]

EC 1.14.3 With reduced pteridine as one donor (deleted sub-subclass)[]

EC 1.14.11 With 2-oxoglutarate as one donor, and incorporation of one atom each of oxygen into both donors[]

EC 1.14.12 With NADH or NADPH as one donor, and incorporation of two atoms of oxygen into one donor[]

EC 1.14.13 With NADH or NADPH as one donor, and incorporation of one atom of oxygen into the other donor[]

Most of the entries from here on have no Wikipedia articles

EC 1.14.14 With reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen[]

Most of the entries from here on have no Wikipedia articles

EC 1.14.15 With reduced iron-sulfur protein as one donor, and incorporation of one atom of oxygen[]

Most entries from here on have no Wikipedia articles

EC 1.14.16 With reduced pteridine as one donor, and incorporation of one atom of oxygen into the other donor[]