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Updated: Jun 28, 2026

A High-Yield Streptomyces Transcription-Translation Toolkit for Synthetic Biology and Natural Product Applications
Published on: September 10, 2021
Engineered production of iso-migrastatin in heterologous Streptomyces hosts
Zhiyang Feng1, Liyan Wang, Scott R Rajski
1Division of Pharmaceutical Sciences, University of Wisconsin-Madison, Madison, WI 53705, USA.
Abstract:
Glutarimide-containing polyketides such as migrastatin (MGS) are well known for their ability to inhibit tumor cell migration. We have previously shown that MGS is derived from iso-migrastatin (iso-MGS) via a H(2)O-mediated ring-expansion rearrangement. A bacterial artificial chromosome (BAC) library of Streptomyces platensis NRRL18993, an iso-MGS producer, was constructed. From this library, pBS11001, a BAC clone harboring the intact iso-MGS biosynthetic gene cluster, was identified. Mobilization of pBS11001 into five heterologous Streptomyces hosts afforded recombinant strains, SB11001, SB11002, SB11003, SB11004, and SB11005, respectively. Under a standard set of media and fermentation conditions, the recombinant strains all produced the same profile of iso-MGS as that of S. platensis NRRL18993. These findings highlight the strength and flexibility of the BAC-based technology for natural product production and engineering in heterologous Streptomyces model hosts.
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