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Unexpected consequences: exon skipping caused by CRISPR-generated mutations.

Joshua J Sharpe1, Thomas A Cooper2,3,4

  • 1Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, 77030, USA.

Genome Biology
|June 16, 2017
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Summary
This summary is machine-generated.

CRISPR/Cas9 gene editing frequently disrupts RNA splicing, leading to unexpected protein expression from intended null alleles. This finding necessitates improved quality control for selecting optimal CRISPR-generated mutant alleles.

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Area of Science:

  • Molecular Biology
  • Genetics
  • Biotechnology

Background:

  • CRISPR/Cas9 is a powerful gene-editing tool.
  • Ensuring the accuracy of gene edits is crucial for research and therapeutic applications.

Purpose of the Study:

  • To investigate the impact of CRISPR/Cas9 gene editing on RNA splicing.
  • To identify potential unintended consequences of CRISPR/Cas9-induced mutations.

Main Methods:

  • Analysis of mutations generated by CRISPR/Cas9 technology.
  • Assessment of RNA splicing patterns in edited cells.
  • Characterization of protein products from engineered alleles.

Main Results:

  • Splicing disruption is a common outcome of CRISPR/Cas9 gene editing.
  • Mutations intended to create null alleles can result in the expression of aberrant proteins.
  • Unintended protein products may arise from CRISPR/Cas9-induced genetic alterations.

Conclusions:

  • CRISPR/Cas9 gene editing can lead to frequent splicing disruptions.
  • Quality control measures are essential to validate CRISPR-generated alleles.
  • Aberrant protein expression highlights the need for careful allele selection post-editing.