Using an sgRNA (targeting CCACTTCCAGGGCTTTGACG) and an ssODN template (TGTGAAATGCTTCGGAGGTAGGAGGTGTGAGCGGAAGGCTTTATAGATAATGTGCTCCATAGTCCACTTCCAGGGCTTAGAGGTCGAGCCAGGCATGTCACTCTGGAAAATATATGACAC) with CRISPR/Cas9 technology, valine codon 720 (GTG) was changed to methionine (ATG) (c.2158G>A, p.V720M). This is the equivalent of the human p.V716M mutation. (J:324056)