6sgl

Structural highlights

Function

[RUTA_ECOLI] Catalyzes the pyrimidine ring opening between N-3 and C-4 by an unusual flavin hydroperoxide-catalyzed mechanism to yield ureidoacrylate peracid. It cleaves pyrmidine rings directly by adding oxygen atoms, making a toxic ureidoacrylate peracid product which can be spontaneously reduced to ureidoacrylate. Requires the flavin reductase RutF to regenerate FMN in vivo. RutF can be substituted by Fre in vitro.^{[1] [2]}

References

1. ↑ Loh KD, Gyaneshwar P, Markenscoff Papadimitriou E, Fong R, Kim KS, Parales R, Zhou Z, Inwood W, Kustu S. A previously undescribed pathway for pyrimidine catabolism. Proc Natl Acad Sci U S A. 2006 Mar 28;103(13):5114-9. Epub 2006 Mar 15. PMID:16540542 doi:0600521103
2. ↑ Kim KS, Pelton JG, Inwood WB, Andersen U, Kustu S, Wemmer DE. The Rut pathway for pyrimidine degradation: novel chemistry and toxicity problems. J Bacteriol. 2010 Aug;192(16):4089-102. doi: 10.1128/JB.00201-10. Epub 2010 Apr, 16. PMID:20400551 doi:http://dx.doi.org/10.1128/JB.00201-10