Somatic mutation frequencies induced by RGNs.

<p>(A) GGN18 and GGN20 sgRNAs and their genomic target sequences. Sequences of the variable regions of the sgRNAs are shown here. These sgRNAs contain 1–2 nt mismatches to their genomic target sequences at the 5′ end. sgRNAs bind to the reverse complement strand of the DNA that possess the genomic target sequences (see illustration in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0068708#pone-0068708-g001" target="_blank">Figure 1A</a>). Matching genomic and sgRNA sequences are marked in red, while the mismatches are marked in blue. PAM is underlined. (B) The indel mutation frequencies were assess using the T7EI assay.