{{Rsnum
|rsid=28399444
|geno1=(-;-)
|geno2=(-;AA)
|geno3=(AA;AA)
|Orientation=minus
|Orientation=minus
|Chromosome=19
|position=41354190
|Gene=CYP2A6
|Assembly=GRCh37
|GenomeBuild=37.1
|dbSNPBuild=131
|Status=Deleted
}}{{PharmGKB
|RSID=rs28399444
|Name_s=CYP2A6:50364-50365delTT
|Gene_s=CYP2A6
|Feature=
|Evidence=Web Resource:http://www.pharmgkb.org/search/annotatedGene/cyp2a6/haplotype.jsp; Web Resource:http://www.pharmgkb.org/search/annotatedGene/cyp2a6/variant.jsp#ImportantVariantInformationforCYP2A6-50364
|Annotation=This variant results in a truncated protein and no enzyme activity; part of the CYP2A6*20 haplotype.
|Drugs=
|Drug Classes=
|Diseases=
|Curation Level=In-Depth
|PharmGKB Accession ID=PA161145201
}}

{{on chip | 23andMe v1}}
{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}


[[rs28399444]] is a truncated non-functioning variant of [[CYP2A6]] known as CYP2A6*20