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Updated: Aug 12, 2026

From a Natural Product to Its Biosynthetic Gene Cluster: A Demonstration Using Polyketomycin from Streptomyces diastatochromogenes Tü6028
Published on: January 13, 2017
Novel naphthoquinones from a Streptomyces sp
P Kulanthaivel1, T J Perun, M D Belvo
1Natural Products Research and Development, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, USA.
Abstract:
Cdc25A assay-guided fractionation of a fermentation broth derived from a Streptomyces sp. resulted in the isolation of four novel naphthoquinones 1-4. Structures of these compounds were deduced by NMR and mass spectrometry. Two of them, 3 and 4, incorporate a modified cysteine residue which is observed for the first time in this class of natural products. Naphthoquinones 1-4 showed weak activity against cdc25A phosphatase.
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