Heterologous Reconstitution of 4-Amidopentadienoate Biosynthesis Identifies the PKS Machinery Responsible for Warhead Formation
The 4-amidopentadienoate (APD) motif is a rare and bioactive pharmacophore found in the cyclic lipodepsipeptide natural products BE-43547, rakicidins, microtermolides, and related compounds. Although several biosynthetic gene clusters associated with this family have been identified, the enzymatic origin of the APD war...