Dynamic pathway regulation: recent advances and methods of construction

Area of Science:

• Synthetic biology
• Metabolic engineering
• Microbial biotechnology

Background:

• Microbial cell factories offer a sustainable route for producing biofuels and chemicals.
• Dynamic pathway regulation is key to optimizing metabolite production by balancing cell growth and product formation.
• Autonomous induction systems, including biosensors and quorum sensing, are advancing pathway regulation.

Purpose of the Study:

• To review current tools for controlling protein abundance in microbial hosts.
• To highlight methods for gene repression at transcriptional, post-transcriptional, and post-translational levels.
• To facilitate pathway engineering for enhanced biofuel and biochemical production.

Main Methods:

• Literature review of gene repression tools.
• Focus on methods applicable to Escherichia coli and Saccharomyces cerevisiae.
• Analysis of transcriptional, post-transcriptional, and post-translational control strategies.

Main Results:

• Identified various gene repression tools for protein abundance control.
• Detailed methods for transcriptional, post-transcriptional, and post-translational regulation.
• Highlighted the importance of host-specific tool selection.

Conclusions:

• Effective protein abundance control is crucial for microbial cell factory optimization.
• Available gene repression tools in E. coli and S. cerevisiae can significantly advance metabolic engineering efforts.
• These tools are essential for developing efficient biofuel and biochemical production platforms.