Abstract
Using site directed mutagenesis we altered an active site residue (Phe107) of the enzyme encoded by fabF3 (SCO3248) in the Streptomyces coelicolor gene cluster required for biosynthesis of the calcium dependent antibiotics (CDAs), successfully generating two novel CDA derivatives comprising truncated (C4) lipid side chains and confirming that fabF3 encodes a KAS-II homologue that is involved in determining CDA fatty acid chain length.
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