Abstract
In cell factory development, screening procedures, often relying on low-throughput analytical methods, are lagging far behind diversity generation methods. This renders the identification and selection of the best cell factory designs tiresome and costly, conclusively hindering the manufacturing process. In the yeast Saccharomyces cerevisiae, implementation of allosterically regulated transcription factors from prokaryotes as metabolite biosensors has proven a valuable strategy to alleviate this screening bottleneck. Here, we present a protocol to select and incorporate prokaryotic transcriptional activators as metabolite biosensors in S. cerevisiae. As an example, we outline the engineering and characterization of the LysR-type transcriptional regulator (LTTR) family member BenM from Acetinobacter sp. ADP1 for monitoring accumulation of cis,cis-muconic acid, a bioplast precursor, in yeast by means of flow cytometry.
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Ambri, F., Snoek, T., Skjoedt, M.L., Jensen, M.K., Keasling, J.D. (2018). Design, Engineering, and Characterization of Prokaryotic Ligand-Binding Transcriptional Activators as Biosensors in Yeast. In: Jensen, M.K., Keasling, J.D. (eds) Synthetic Metabolic Pathways. Methods in Molecular Biology, vol 1671. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-7295-1_17
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DOI: https://doi.org/10.1007/978-1-4939-7295-1_17
Publisher Name: Humana Press, New York, NY
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