{{Rsnum
|rsid=1058164
|Gene=CYP2D6
|Chromosome=22
|position=42525132
|Orientation=plus
|GMAF=0.3898
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;G)
|geno3=(G;G)
|Gene_s=CYP2D6
}}The 1661G>C variation in [[CYP2D6]]. Involved in a number of decreased and non-functioning CYP2D6 variants. This SNP does not yet appear to be common in consumer tests.

{{PMID Auto
|PMID=18698231
|Title=Polymorphisms affecting gene transcription and mRNA processing in pharmacogenetic candidate genes: detection through allelic expression imbalance in human target tissues.
|OA=1
}}

{{PMID Auto
|PMID=23133420
|Title=Pharmacogenomic Diversity among Brazilians: Influence of Ancestry, Self-Reported Color, and Geographical Origin.
|OA=1
}}

{{on chip | 23andMe v3}}