Asparagine codon 396 (AAC) was changed to lysine (AAG) (p.N396K) using an sgRNA (targeting CCATTTCAACGTGTCTGTACTG) and an ssODN template with CRISPR/Cas9 technology. This mutation is the equivalent of the human p.N394K mutation associated with Hirschsprung disease (HSCR). (J:325770)