Generation and Functional Evaluation of Designer Monoterpene Synthases

Area of Science:

• Biochemistry and Molecular Biology
• Plant Natural Products Chemistry
• Synthetic Biology

Background:

• Monoterpene synthases (MTS) are key enzymes in terpenoid biosynthesis, producing the diverse class of plant natural products.
• Understanding MTS reaction mechanisms enables engineering for specific product formation.
• Terpenoids are valuable for pharmaceuticals, fragrances, and biofuels.

Purpose of the Study:

• To describe protocols for engineering mutant MTS.
• To outline methods for expressing and characterizing these mutant enzymes in heterologous hosts.
• To highlight the potential of engineered MTS in synthetic biology.

Main Methods:

• Targeted mutagenesis of MTS genes.
• Heterologous expression of engineered MTS in microbial hosts (e.g., E. coli, yeast).
• Biochemical assays to assess catalytic activity and product profiles of mutant enzymes.

Main Results:

• Successful introduction of targeted mutations in MTS.
• Expression and functional characterization of mutant MTS in heterologous systems.
• Demonstration of altered catalytic properties and specific monoterpene production by engineered enzymes.

Conclusions:

• Protocols for engineering and characterizing MTS are established.
• Mutant MTS can be produced in heterologous hosts.
• Engineered MTS hold significant promise for the biotechnological production of specific monoterpenes.