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Systems strategies for developing industrial microbial strains.

Sang Yup Lee1,2,3,4, Hyun Uk Kim1,2,4

  • 1Metabolic and Biomolecular Engineering National Research Laboratory, Department of Chemical and Biomolecular Engineering (BK21 Plus Program), Center for Systems and Synthetic Biotechnology, Institute for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea.

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Summary
This summary is machine-generated.

Systems metabolic engineering optimizes industrial microbial strains by integrating systems biology, synthetic biology, and evolutionary engineering. This approach accelerates the development of bio-based chemicals, amino acids, and pharmaceuticals.

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Area of Science:

  • Biotechnology
  • Metabolic Engineering
  • Industrial Microbiology

Background:

  • Industrial strain development is complex, involving intricate metabolic, gene regulatory, and signaling networks.
  • Current methods are time-, cost-, and labor-intensive due to challenges in understanding system-wide cellular interactions.

Purpose of the Study:

  • To present systems approaches for overcoming challenges in industrial strain development.
  • To highlight the integration of cutting-edge tools for efficient bioprocess optimization.

Main Methods:

  • Utilizing systems biology for a holistic understanding of cellular metabolism.
  • Applying synthetic biology and evolutionary engineering for targeted strain improvement.
  • Considering industrial fermentation and recovery processes throughout development.

Main Results:

  • Demonstrated success in microbial production of essential amino acids (L-valine, L-threonine, L-lysine, L-arginine).
  • Achieved significant advancements in the production of bulk chemicals (e.g., 1,4-butanediol, succinic acid, butanol).
  • Enabled the microbial synthesis of pharmaceuticals, exemplified by artemisinin production.

Conclusions:

  • Systems metabolic engineering offers a powerful paradigm for efficient industrial strain development.
  • The integration of diverse 'omics' and engineering tools accelerates the bio-production of valuable compounds.
  • This approach is crucial for advancing sustainable biomanufacturing processes.