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Typical electrophoresis pattern in detection of CYP2C19*2. Goal fragment was 139 bp. Lanes 1 and 8: DNA ladder; Lanes 2, 4 and 6: wild-type primers; Lanes 3, 5 and 7: mutant primers; Sample 1: homozygous wild-type (lanes 2 and 3); Sample 2: heterozygote (lanes 4 and 5); Sample 3: homozygous mutant (lanes 6 and 7).
