Discovery of (Dihydro)pyrazine <i>N</i>-Oxides via Genome Mining in <i>Pseudomonas</i>
作者:Ashley M. Kretsch、Gina L. Morgan、Jillian Tyrrell、Emily Mevers、Isabelle Vallet-Gély、Bo Li
DOI:10.1021/acs.orglett.8b01944
日期:2018.8.17
Overexpression of the Pseudomonas virulence factor (pvf) biosynthetic operon led to the identification of a family of pyrazine N-oxides (PNOs), including a novel dihydropyrazine N,N'-dioxide (dPNO) metabolite. The nonribosomal peptide synthetase responsible for production of (d)PNOs was characterized, and a biosynthetic pathway for (d)PNOs was proposed. This work highlights the unique chemistry catalyzed by pvf-encoded enzymes and sets the stage for bioactivity studies of the metabolites produced by the virulence pathway.