Generation of new landomycins with altered saccharide patterns through over-expression of the glycosyltransferase gene lanGT3 in the biosynthetic gene cluster of landomycin A in Streptomyces cyanogenus S-136.

Abstract excerpt

Two novel landomycin compounds, landomycins I and J, were generated with a new mutant strain of Streptomyces cyanogenus in which the glycosyltransferase that is encoded by lanGT3 was over-expressed. This mutant also produced the known landomycins A, B, and D. All these compounds consist of the same polyketide-derived aglycon but differ in their sugar moieties, which are chains of different lengths. The major new...

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