Characterization of AntB, a Promiscuous Acyltransferase Involved in Antimycin Biosynthesis.

The in vivoand in vitrocharacterization of AntB, a dedicated acyltransferase encoded in the antimycin biosynthetic gene cluster, which catalyzes the C-8 acyloxy formation is reported. It is demonstrated that AntB has broad substrate specificity toward both the acyl substrate and the acyl carrier and produces more antimycin analogues with varying C-8 acyloxy moieties. [ABSTRACT FROM AUTHOR]