The Enzyme Database

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Accepted name: pyrimidine oxygenase
Reaction: (1) uracil + FMNH2 + O2 = (Z)-3-ureidoacrylate peracid + FMN
(2) thymine + FMNH2 + O2 = (Z)-2-methylureidoacrylate peracid + FMN
Glossary: ureidoperacrylic acid = (Z)-3-ureidoacrylate peracid = (2Z)-3-(carbamoylamino)prop-2-eneperoxoic acid
(Z)-2-methylureidoperacrylic acid = (Z)-2-methylureidoacrylate peracid = (2Z)-3-(carbamoylamino)-2-methylprop-2-eneperoxoic acid
Other name(s): RutA
Systematic name: uracil,FMNH2:oxygen oxidoreductase (uracil hydroxylating, ring-opening)
Comments: In vitro the product (Z)-3-ureidoacrylate peracid is spontaneously reduced to ureidoacrylate [1,2]. Part of the Rut pyrimidine catabolic pathway.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Mukherjee, T., Zhang, Y., Abdelwahed, S., Ealick, S.E. and Begley, T.P. Catalysis of a flavoenzyme-mediated amide hydrolysis. J. Am. Chem. Soc. 132 (2010) 5550–5551. [DOI] [PMID: 20369853]
2.  Kim, K.S., Pelton, J.G., Inwood, W.B., Andersen, U., Kustu, S. and Wemmer, D.E. The Rut pathway for pyrimidine degradation: novel chemistry and toxicity problems. J. Bacteriol. 192 (2010) 4089–4102. [DOI] [PMID: 20400551]
[EC created 2012]

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