Cloning of the gene encoding avermectin B 5-O-methyltransferase in avermectin-producing Streptomyces avermitilis.

Abstract

Complementation of a mutant lacking avermectin B 5-O-methyltransferase (AveD) of Streptomyces avermitilis, which catalyses the methylation of the hydroxyl group at the C5 position of avermectin B compounds, revealed that the gene encoding AveD is in a 1.25-kb SalI-EcoNI fragment in the left region of the gene cluster for avermectin biosynthesis. The… (More)

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