The incorporation of thymine and β-aminoisobutyrate into the polyether antibiotic, monensin-A
Abstract
The isotopes from DL-[3-13C]-β-aminoisobutyrate and [13C2H3-methyl]thymine are efficiently incorporated into the seven propionate, and to a lesser extent the butyrate, derived methyl groups in monensin-A from Streptomyces cinnamonensis; catabolic pathways from thymine to methylmalonyl-CoA and isobutyryl-CoA are implicated in antibiotic producing Actinomycetes.