GOTI

GOTI identifies genome-wide off-target variants induced by genome editing in mouse two-cell embryos to assess the precision of CRISPR-Cas9 and base editors.


Key Features:

  • High Sensitivity Detection: By comparing edited and non-edited cells from one-blastomere-injected two-cell mouse embryos, GOTI detects off-target mutations while eliminating genetic background variation.
  • Versatility Across Editing Tools: Detects off-target variants induced by genome editing technologies, including CRISPR-Cas9 and base editors.
  • Experimental and Computational Integration: Combines two-cell embryo injection, sampling at embryonic day 14.5, fluorescence-activated cell sorting (FACS), and whole-genome sequencing to link experimental contrast with computational analysis.
  • GOTI-seq Computational Workflow: Processes raw whole-genome sequencing data and automates generation of genome-wide off-target variant reports.

Scientific Applications:

  • Safety Evaluation of Genome Editing Tools: Identifies unintended mutations to assess precision and potential risks of genome editing technologies.
  • Development of Gene Therapy Protocols: Detects unintended genetic modifications to inform safer gene therapy strategies.
  • Basic Research in Genetic Engineering: Enables study of mechanisms and consequences of off-target effects in genome editing experiments.

Methodology:

GOTI-seq processes raw whole-genome sequencing data and generates genome-wide off-target variant reports.

Topics

Details

License:
MIT
Tool Type:
command-line tool
Programming Languages:
Shell, Perl
Added:
1/18/2021
Last Updated:
1/25/2021

Operations

Publications

Zuo E, Sun Y, Wei W, Yuan T, Ying W, Sun H, Yuan L, Steinmetz LM, Li Y, Yang H. GOTI, a method to identify genome-wide off-target effects of genome editing in mouse embryos. Nature Protocols. 2020;15(9):3009-3029. doi:10.1038/s41596-020-0361-1. PMID:32796939. PMCID:PMC8190672.