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- W4200105846 abstract "ABSTRACT Here, we describe two N -acetyl-cysteinylated streptophenazines ( 1 and 2 ) produced by soil-derived Streptomyces sp. ID63040 and identified through a metabolomic approach. These metabolites attracted our interest due to their low occurrence frequency in a large library of fermentation broth extracts and their consistent presence in biological replicates of the producer strain. The compounds were found to possess broad-spectrum antibacterial activity while exhibiting low cytotoxicity. The biosynthetic gene cluster from Streptomyces sp. ID63040 was found to be highly similar to the streptophenazine reference cluster in the MIBiG database, which originates from the marine Streptomyces sp. CNB-091. Compounds 1 and 2 were the main streptophenazine products from Streptomyces sp. ID63040 at all cultivation times, but were not detected in Streptomyces sp. CNB-091. The lack of obvious candidates for cysteinylation in the Streptomyces sp. ID63040 biosynthetic gene cluster suggests that the N -acetyl-cysteine moiety derives from cellular functions, most likely from mycothiol. Overall, our data represent an interesting example on how to leverage metabolomics for the discovery of new natural products and point out to the often-neglected contribution of house-keeping cellular functions to natural product diversification. Graphical abstract" @default.
- W4200105846 created "2021-12-31" @default.
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- W4200105846 date "2021-12-06" @default.
- W4200105846 modified "2023-10-15" @default.
- W4200105846 title "N-acetyl-cysteinylated streptophenazines from Streptomyces" @default.
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- W4200105846 doi "https://doi.org/10.1101/2021.12.06.470720" @default.
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