{{Rsnum
|rsid = 74951492
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
|Chromosome=22
|Orientation=plus
|Gene=CYP2D6
|position=42527224
|Assembly=GRCh37.p5
|GenomeBuild=37.3
|dbSNPBuild=135
|Gene_s=CYP2D6
}}a variation in [[CYP2D6]]