Article
Biosynthesis of deoxyamphotericins and deoxyamphoteronolides by engineered strains of Streptomyces nodosus.
Chemistry & biology - 1 Dec 2003
Byrne Barry, Carmody Maria, Gibson Emma, Rawlings Bernard, Caffrey Patrick
Abstract excerpt
Amphotericin B is an antifungal antibiotic produced by Streptomyces nodosus. During biosynthesis of amphotericin, the macrolactone core undergoes three modifications: oxidation of a methyl branch to a carboxyl group, mycosaminylation, and hydroxylation. Gene disruption was undertaken to block two of these modifications. Initial experiments targeted the amphDIII gene, which encodes a GDP-D-mannose 4,6-dehydratase...
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