a-rapid-facile-pipeline-for-generating-genomic-point-mutants-c

A Rapid and Facile Pipeline for Generating Genomic Point Mutants in <em>C. elegans</em> Using CRISPR/Cas9 Ribonucleoproteins

The clustered regularly interspersed palindromic repeats (CRISPR)-CRISPR-associated protein 9 (Cas9) prokaryotic adaptive immune defense system has been ...

University of Michigan

We describe a rapid and highly efficient method to generate point mutations in  using direct injection of CRISPR-Cas9 ribonucleoproteins. This versatile method does not require sensitized genetic backgrounds or co-CRISPR selection-based methods, and represents a single strategy that can be used for creating genomic point mutations, regardless of location. As proof of principle, we show that knock-in mutants more faithfully report variant-associated phenotypes as compared to transgenic overexpression. Data for nine knock-in mutants across five genes are presented that demonstrate high editing efficiencies (60%), a reduced screening workload (24 F1 progeny), and a rapid timescale (4-5 d). This optimized method simplifies genome engineering and is readily adaptable to other model systems.

Lauren MacConnachie

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