ABSTRACT Colibactins are hybrid polyketide-nonribosomal peptides produced by Escherichia coli. Klebsiella pneumoniae. and other Enterobacteriaceae harboring the pks genomic island. These genotoxic metabolites are produced by pks-encoded peptide-polyketide synthases as inactive prodrugs called precolibactins. https://www.diegojavierfares.com/super-super-Proven-Winners-reg-Fun-And-Games-reg-Eye-Spy-Foamy-Bells-special-save/