Abstract
With the advent of genome editing technologies, scientists have recognized that these technologies can be prone to nonspecific or off-target activity. As many areas of the genome are sensitive and can give rise to abnormalities if mutated, it is imperative that scientists identify regions of off-target activity in order to utilize these new technologies for medical benefits. GUIDE-seq and iGUIDE both use an oligo-based marker method to identify regions of DNA double-strand breaks in an unbiased manner. The repeated observation of these double-strand breaks across the genome in comparison with target sequences (such as guide RNAs) has allowed researchers to identify on- and off-target sites related to their targeted-nuclease technologies.
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