An efficient method to generate conditional knockout cell lines for essential genes by combination of auxin-inducible degron tag and CRISPR/Cas9

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Abstract
Generation of cells with a loss-of-function mutation in a gene (knockout cells) is a valuable technique for studying the function of a given gene product. However, if the product of the target gene is essential for cell viability, conditional knockout cell lines must be generated. Recently, as gene editing technology using CRISPR/Cas9 has developed, it has become possible to produce conditional knockout cell lines using this technique. However, to obtain final conditional knockout cell lines, it is necessary to perform several experiments with multiple complicated steps. In this paper, we introduce an easy and efficient method to generate conditional knockout cell lines based on combining auxin-inducible degron (AID) technology with CRISPR/Cas9 gene editing. Our method only requires performing a single transfection and is therefore an easy and rapid method to obtain a conditional knockout cell line.
Funding Information
  • Japan Society for the Promotion of Science (25221106, 15H05972, 17K15041)

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