Postgenomic approaches to using corynebacteria as biocatalysts

Area of Science:

• Microbiology
• Biotechnology
• Metabolic Engineering

Background:

• Corynebacterium glutamicum is a well-established industrial microorganism for amino acid production.
• Its inherent metabolic capabilities are ideal for synthesizing primary and secondary metabolites.
• The development of an entire industry relies on its high yields and conversion rates.

Purpose of the Study:

• To review methods and strain optimization strategies for Corynebacterium glutamicum.
• To highlight the impact of genomic information on its industrial applications.
• To explore the expansion of its product portfolio beyond amino acids.

Main Methods:

• Leveraging post-genomic era technologies for strain improvement.
• Utilizing genomic information and associated techniques for optimization.
• Implementing host-vector systems with C. glutamicum and its episomal elements.

Main Results:

• Demonstrated incremental improvements in industrial-scale manufacturing economics.
• Enabled further optimization of C. glutamicum's intrinsic biocatalytic attributes.
• Facilitated dramatic expansion of the product portfolio, including commodity chemicals.

Conclusions:

• Genomic-driven strategies significantly enhance Corynebacterium glutamicum's utility as a microbial factory.
• The organism's potential extends to a broader range of valuable chemicals.
• Continued optimization promises further economic benefits in industrial biomanufacturing.