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Novel macrolactam compound produced by the heterologous expression of a large cryptic biosynthetic gene cluster of Streptomyces rochei IFO12908

Abstract

In the course of our studies on the heterologous expression of giant biosynthetic genes, we discovered a novel cryptic biosynthetic gene cluster in Streptomyces rochei IFO12908. During our efforts to express biosynthetic genes using the host SUKA strain derived from Streptomyces avermitilis, a novel polyene macrolactam compound designated as JBIR-156 was produced. We report herein the cloning and heterologous expression of the JBIR-156 biosynthetic gene cluster, and the isolation, structure determination, and cytotoxic activity of this novel compound.

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Acknowledgements

This work was supported by Japan Agency for Medical Research and Development (AMED) under Grant Number JP17ae0101002 for KS.

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Correspondence to Kazuo Shin-ya.

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Hashimoto, T., Kozone, I., Hashimoto, J. et al. Novel macrolactam compound produced by the heterologous expression of a large cryptic biosynthetic gene cluster of Streptomyces rochei IFO12908. J Antibiot 73, 171–174 (2020). https://doi.org/10.1038/s41429-019-0265-x

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