Using an sgRNA (targeting AGTTTCCACGTATATTGACT) and ssODN template (AACTTACAGGCGTTAAAAGGCTTCTGAATAACTCTAAGTATTCAGTTTCCATATATATTGACTTGGTGCCACATACTGCATCTGTAAATTTTGGAAACACTGTGGCAGAATTAGAACATAACTACA) with CRISPR/Cas9 technology, threonine codon 2188 (ACG) was changed to isoleucine (ATA) (c.6563_6564delCGinsTA, p.T2188I). This is the equivalent of the human p.T2181I mutation caused by SNP rs61735519. (J:226562)