Misplaced Pages

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages) This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources. Find sources: "Caffeate 3,4-dioxygenase" – news · newspapers · books · scholar · JSTOR (November 2021) This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (November 2021) (Learn how and when to remove this message) (Learn how and when to remove this message)

Caffeate 3,4-dioxygenase (EC 1.13.11.22) is an enzyme that catalyzes the chemical reaction

3,4-dihydroxy-trans-cinnamate + O₂ ${\displaystyle \rightleftharpoons }$ 3-(2-carboxyethenyl)-cis,cis-muconate

Thus, the two substrates of this enzyme are 3,4-dihydroxy-trans-cinnamate (caffeic acid) and oxygen, whereas its product is 3-(2-carboxyethenyl)-cis,cis-muconate.

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 3,4-dihydroxy-trans-cinnamate:oxygen 3,4-oxidoreductase (decyclizing). This enzyme participates in phenylpropanoid biodegradation.

References

• Seidman MM, Toms A, Wood JM (1969). "Influence of side-chain substituents on the position of cleavage of the benzene ring by Pseudomonas fluorescens". J. Bacteriol. 97 (3): 1192–7. doi:10.1128/jb.97.3.1192-1197.1969. PMC 249834. PMID 5776526.

• Biology

• EC 1.13.11
• Enzymes of unknown structure
• Hydroxycinnamic acids metabolism