Catechol oxidase (dimerizing)

In enzymology, a catechol oxidase (dimerizing) (EC 1.1.3.14) is an enzyme that catalyzes the chemical reaction

4 catechol + 3 O₂ ${\displaystyle \rightleftharpoons }$ 2 dibenzo[1,4]dioxin-2,3-dione + 6 H₂O

Thus, the two substrates of this enzyme are catechol and O₂, whereas its two products are [[dibenzo[1,4]dioxin-2,3-dione]] and H₂O.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with oxygen as acceptor. The systematic name of this enzyme class is catechol:oxygen oxidoreductase (dimerizing).

References

• Nair PM, Vining LC (July 1964). "Enzymic oxidation of catechol to diphenylenedioxide-2,3-quinone". Archives of Biochemistry and Biophysics. 106: 422–7. doi:10.1016/0003-9861(64)90210-3. PMID 14217190.

1. List of EC numbers (EC 1)
2. Apocynin
3. Phenylethanolamine N-methyltransferase
4. Polyphenol
5. Phenylalanine hydroxylase
6. Naturally occurring phenols
7. Morpheein