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The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...
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Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
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A New Toolkit for Evaluating Gene Functions using Conditional Cas9 Stabilization
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Next Generation Prokaryotic Engineering: The CRISPR-Cas Toolkit.

Ioannis Mougiakos1, Elleke F Bosma1, Willem M de Vos1

  • 1Laboratory of Microbiology, Wageningen University, Dreijenplein 10, 6703 HB Wageningen, The Netherlands.

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Summary

CRISPR-Cas tools accelerate microbial metabolic engineering for green chemical production. This review explores advanced CRISPR-Cas applications for engineering both model and non-model prokaryotes, enabling next-generation biocatalyst development.

Keywords:
CRISPR-CasCas9archaeabacteriagenome editingrecombineering

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Area of Science:

  • Microbial metabolic engineering
  • Synthetic biology
  • Biotechnology

Background:

  • Growing demand for sustainable production of green chemicals and fuels.
  • Established CRISPR-Cas tools facilitate strain development in model organisms like Escherichia coli and Saccharomyces cerevisiae.
  • Limited genome editing options in alternative microbial hosts hinder their development.

Purpose of the Study:

  • To review established and emerging CRISPR-Cas tools for genome editing and transcription control in prokaryotes.
  • To analyze the potential for improving and expanding these tools for advanced prokaryotic engineering.

Main Methods:

  • Literature review of CRISPR-Cas based tools.
  • Analysis of genome editing and transcription control applications.
  • Exploration of engineering possibilities in model and non-model prokaryotes.

Main Results:

  • CRISPR-Cas tools offer precise genome editing and expression control.
  • These tools are adaptable for both well-studied and novel microbial hosts.
  • Significant potential exists for enhancing CRISPR-Cas systems for future applications.

Conclusions:

  • CRISPR-Cas technology is crucial for advancing microbial metabolic engineering.
  • Further development of CRISPR-Cas tools will unlock the potential of diverse prokaryotic hosts.
  • This facilitates the development of sustainable bioproduction processes.