High-throughput genetic engineering tools for regulating gene expression in a microbial cell factory

Abstract

With the rapid advances in biotechnological tools and strategies, microbial cell factory-constructing strategies have been established for the production of value-added compounds. However, optimizing the tradeoff between the biomass, yield, and titer remains a challenge in microbial production. Gene regulation is necessary to optimize and control metabolic fluxes in microorganisms for high-production performance. Various high-throughput genetic engineering tools have been developed for achieving rational gene regulation and genetic perturbation, diversifying the cellular phenotype and enhancing bioproduction performance. In this paper, we review the current high-throughput genetic engineering tools for gene regulation. In particular, technological approaches used in a diverse range of genetic tools for constructing microbial cell factories are introduced, and representative applications of these tools are presented. Finally, the prospects for high-throughput genetic engineering tools for gene regulation are discussed.

Keywords:

• Microbial production
• gene regulation
• high-throughput genetic engineering tool
• microbial cell factory
• high-production performance

Disclosure statement

The authors declare no conflict of interest related to this paper.

Additional information

Funding

This work was supported by an NRF grant funded by the Ministry of Science and ICT [grant number NRF-2019R1A2C1088504] and the Chung-Ang University Graduate Research Scholarship Grant in 2020.