Site-specific modification of the anticancer and antituberculosis polyether salinomycin by biosynthetic engineering.

Abstract excerpt

The complex bis-spiroacetal polyether ionophore salinomycin has been identified as a uniquely selective agent against cancer stem cells and is also strikingly effective in an animal model of latent tuberculosis. The basis for these important activities is unknown. We show here that deletion of the salE gene abolishes salinomycin production and yields two new analogues, in both of which the C18C19 cis double bond...

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