15. Brotherton, Carolyn A.; Wilson, Matthew; Byrd, Gary; Balskus, Emily P. Isolation of a Metabolite from the pks Island Provides Insights into Colibactin Biosynthesis and Activity. Org. Lett.2015, 17, 1545–1548. DOI: https://doi.org/10.1021/acs.orglett.5b00432.