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Proliferation Analyses of Conditional Knockdown Strains Using CRISPR Interference in Fission Yeast.

Ken Ishikawa1, Shigeaki Saitoh2

  • 1Department of Cell Biology, Institute of Life Science, Kurume University, Kurume, Japan. ishikawa_ken@kurume-u.ac.jp.

Methods in Molecular Biology (Clifton, N.J.)
|November 11, 2024
PubMed
Summary

CRISPR interference (CRISPRi) offers a simple, systematic method for conditionally inhibiting gene transcription in Schizosaccharomyces pombe. This technique enables the study of essential genes and facilitates high-throughput knockdown strain construction.

Keywords:
CRISPRiEssential geneGene perturbationKnockdownTranscriptiondCas9

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Area of Science:

  • Molecular Biology
  • Genetics
  • Microbiology

Background:

  • Studying essential genes requires conditional gene perturbation methods.
  • CRISPR interference (CRISPRi) provides a powerful tool for gene knockdown.
  • Schizosaccharomyces pombe is a key model organism in biological research.

Purpose of the Study:

  • To describe a method for constructing and characterizing CRISPRi-mediated knockdown strains in S. pombe.
  • To present a high-throughput 96-well format for CRISPRi induction.
  • To enable functional studies of essential genes in S. pombe.

Main Methods:

  • Utilizing dCas9-mediated CRISPR interference (CRISPRi) for gene knockdown.
  • Developing a systematic procedure for constructing S. pombe knockdown strains.
  • Implementing a 96-well format for CRISPRi induction for high-throughput screening.

Main Results:

  • Successful construction and characterization of CRISPRi knockdown strains in S. pombe.
  • Demonstration of CRISPRi's utility for studying essential gene function.
  • Validation of a high-throughput method for CRISPRi induction.

Conclusions:

  • CRISPRi is an effective and scalable method for gene knockdown in S. pombe.
  • The described method facilitates the study of essential genes and high-throughput research.
  • This approach simplifies the generation of numerous knockdown strains for genetic studies.