CRISPR/cas9 genome editing used guide RNAs (TCTGAAGAATGAACAACATT and GGTTGGGAAGGGGTGAAGAG) to target exon 2. Donor DNAs were created to insert a G192R mutation (GGA to AGA, glycine to arginine) and a silent mutation N196N (AAT to AAC). The G192R (glycine to arginine) mutation has been identified in patients with X-linked dominant Parkinson's disease. (J:94077)