IUBMB Enzyme Nomenclature

EC 1.14.99.46

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, CAS registry number:

References:

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. [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. [PMID: 20400551]

[EC 1.14.99.46 created 2012]


Return to EC 1.14.99 home page
Return to EC 1.14 home page
Return to EC 1 home page
Return to Enzymes home page
Return to IUBMB Biochemical Nomenclature home page