Abstract

A type II polyketide synthase biosynthetic gene cluster (amd) containing three P450 genes was identified from a soil metagenomic library, and novel benz[h]isoquinoline-desferrioxamine B conjugated compound amodesmycins were isolated from Streptomyces albus J1074 harboring the amd gene cluster. Genetic evidence showed that the benz[h]isoquinoline part and desferrioxamine B part in amodesmycins were derived from the amd gene cluster and S. albus J1074, respectively, while P450 enzymes played critical roles in the conjunction of these two parts.

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