
Indel frequencies determined using targeted deep sequencing at off-target sites. (A) Schematic of conventional sgRNAs (GX19 sgRNA) and modified sgRNAs (ggX20 sgRNA). Indel frequencies at NGS-validated on- and off-target sites for the EMX1 (B), HEK293-3 (C), and RNF2 sgRNAs (D). Specificity ratios calculated by dividing the indel frequency at the on-target site with that at an off-target site for the EMX1 (E), HEK293-3 (F), and RNF2 sgRNAs (G).











