Time-resolved multiparameter analytics on a cell-free production platform for acyl-CoA precursors

Area of Science:

• Biotechnology
• Analytical Chemistry
• Synthetic Biology

Background:

• Cell-free biosynthesis is a promising method for producing valuable molecules.
• The assembly of diverse enzymes in cell-free systems enhances synthetic route efficiency but complicates reaction monitoring.
• Acyl-Coenzyme A (acyl-CoA) molecules, such as malonyl-CoA and acetyl-CoA, are crucial for carbon chain elongation in biosynthesis.

Purpose of the Study:

• To develop and present a novel analytical method for real-time monitoring of acyl-CoA intermediates.
• To address the analytical challenges associated with complex multi-step cell-free biosynthesis.
• To enable precise tracking of key acyl-CoA building blocks during enzymatic reactions.

Main Methods:

• Development of a capillary electrophoresis (CE) based analytical technique.
• Real-time detection and quantification of acyl-CoA species.
• Application of the method to monitor malonyl-CoA and acetyl-CoA dynamics in multi-step catalytic processes.

Main Results:

• The developed CE method allows for time-resolved analysis of acyl-CoA formation and consumption.
• Demonstrated ability to detect the decrease of educts and the increase of products in real-time.
• Successfully monitored the dynamics of malonyl-CoA and acetyl-CoA during complex enzymatic reactions.

Conclusions:

• The presented capillary electrophoresis method provides a powerful tool for analyzing complex cell-free biosynthetic pathways.
• Real-time monitoring of acyl-CoA intermediates is crucial for optimizing synthetic routes and understanding reaction kinetics.
• This analytical approach facilitates the advancement of cell-free biosynthesis for industrial applications.