Inducible plasmid copy number control for synthetic biology in commonly used E. coli strains

Shivang Hina-Nilesh Joshi, Chentao Yong and Andras Gyorgy ()
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Shivang Hina-Nilesh Joshi: New York University Abu Dhabi
Chentao Yong: New York University Abu Dhabi
Andras Gyorgy: New York University Abu Dhabi

Nature Communications, 2022, vol. 13, issue 1, 1-16

Abstract: Abstract The ability to externally control gene expression has been paradigm shifting for all areas of biological research, especially for synthetic biology. Such control typically occurs at the transcriptional and translational level, while technologies enabling control at the DNA copy level are limited by either (i) relying on a handful of plasmids with fixed and arbitrary copy numbers; or (ii) require multiple plasmids for replication control; or (iii) are restricted to specialized strains. To overcome these limitations, we present TULIP (TUnable Ligand Inducible Plasmid): a self-contained plasmid with inducible copy number control, designed for portability across various Escherichia coli strains commonly used for cloning, protein expression, and metabolic engineering. Using TULIP, we demonstrate through multiple application examples that flexible plasmid copy number control accelerates the design and optimization of gene circuits, enables efficient probing of metabolic burden, and facilitates the prototyping and recycling of modules in different genetic contexts.

Date: 2022
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DOI: 10.1038/s41467-022-34390-7

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