Off-Target Mutagenesis Detection

Ensuring Precision in Gene Editing: A Commitment to Accuracy and Excellence in Advancing Scientific Discovery from the Mouse Biology Program.


Off-target mutagenesis detection is critical in validating the specificity of genome editing techniques, such as CRISPR/Cas9, in mouse models. This process identifies unintended genetic changes that may occur at locations other than the targeted site, ensuring the integrity and accuracy of the modifications.

What is Off-Target Mutagenesis Detection?

Off-target mutagenesis occurs when genome editing tools introduce mutations at unintended genomic sites. These off-target effects can lead to unanticipated phenotypes or interfere with the intended function of the gene modification. Detecting and quantifying these off-target mutations is essential for confirming the specificity and reliability of gene editing.

How We Detect Off-Target Mutagenesis

  • Next-Generation Sequencing (NGS):
    NGS provides a comprehensive view of the genome, allowing for the detection of unintended mutations across the entire genome. It offers high sensitivity and precision in identifying off-target mutations.
  • GUIDE-Seq:
    GUIDE-Seq is a method specifically designed for detecting double-strand breaks caused by genome editing. It identifies both on-target and off-target cleavage sites, providing detailed insights into where unintended modifications may have occurred.
  • In Silico Prediction Tools:
    Bioinformatics tools predict potential off-target sites based on the guide RNA sequence. These predictions help focus sequencing efforts on areas most likely to be affected.

Why is Off-Target Detection Important?

  • Ensuring Gene Editing Accuracy:
    Confirming that the genetic modification occurred at the desired site without introducing unintended changes.
  • Validating Experimental Results:
    Ensuring that observed phenotypes or experimental outcomes are due to the intended genetic modification rather than off-target effects.
  • Minimizing Unwanted Mutations:
    Identifying and addressing off-target mutations helps reduce the risk of confounding results and improves the reliability of your research.

How to Request Off-Target Mutagenesis Detection

Please get in touch with our team to request off-target detection services. We provide guidance on sample submission, analysis, and comprehensive reporting of any detected off-target effects.