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In enzymology, a 3-carboxyethylcatechol 2,3-dioxygenase ( EC 1.13.11.16) is an enzyme that catalyzes the chemical reaction

3-(2,3-dihydroxyphenyl)propanoate + O₂ ${\displaystyle \rightleftharpoons }$ 2-hydroxy-6-oxonona-2,4-diene-1,9-dioate

Thus, the two substrates of this enzyme are 3-(2,3-dihydroxyphenyl)propanoate and O₂, whereas its product is 2-hydroxy-6-oxonona-2,4-diene-1,9-dioate.

This enzyme belongs to the family of oxidoreductases, specifically those acting on single donors with O₂ as oxidant and incorporation of two atoms of oxygen into the substrate (oxygenases). The oxygen incorporated need not be derived from O₂. The systematic name of this enzyme class is 3-(2,3-dihydroxyphenyl)propanoate:oxygen 1,2-oxidoreductase (decyclizing). Other names in common use include 2,3-dihydroxy-beta-phenylpropionic dioxygenase, 2,3-dihydroxy-beta-phenylpropionate oxygenase, and 3-(2,3-dihydroxyphenyl)propanoate:oxygen 1,2-oxidoreductase. This enzyme participates in phenylalanine metabolism. It employs one cofactor, iron.

References

• Dagley S, Chapman PJ, Gibson DT (December 1965). "The metabolism of beta-phenylpropionic acid by an Achromobacter". The Biochemical Journal. 97 (3): 643–50. doi: 10.1042/bj0970643. PMC  1264740. PMID  5881653.