IUBMB Enzyme Nomenclature


Accepted name: dihydrouracil oxidase

Reaction: 5,6-dihydrouracil + O2 = uracil + H2O2

Systematic name: 5,6-dihydrouracil:oxygen oxidoreductase

Comments: Also oxidizes dihydrothymine to thymine. A flavoprotein (FMN).

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 104327-11-9


1. Owaki, J., Uzura, K., Minami, Z. and Kusai, K. Partial-purification and characterization of dihydrouracil oxidase, a flavoprotein from Rhodotorula glutinis. J. Ferment. Technol. 64 (1986) 205-210.

[EC created 1989]

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