{{Rsnum
|rsid=12721634
|Orientation=plus
|ReferenceAllele=T
|MissenseAllele=C
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
|Chromosome=7
|position=99784038
|Gene=CYP3A4
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|Gene_s=CYP3A4
}}[[rs12721634]], also known as 44 T>C or L15P, is a SNP in the [[CYP3A4]] gene.

The [[rs12721634]](C) allele defines the CYP3A4*14 variant.

{{PharmGKB
|RSID=rs12721634
|Name_s=CYP3A4:L15P; CYP3A4*14
|Gene_s=CYP3A4, CYP3A
|Feature=Exon/NonSyn, NA
|Evidence=Web Resource:http://www.pharmgkb.org/search/annotatedGene/cyp3a4/haplotype.jsp#ImportantHaplotypeInformationforCYP3A4-3
|Annotation=Defining variant for CYP3A4*14.
|Drugs=
|Drug Classes=
|Diseases=
|Curation Level=In-Depth
|PharmGKB Accession ID=PA161145183
}}

{{on chip | 23andMe v1}}
{{on chip | 23andMe v2}}
{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | FTDNA2}}
{{on chip | HumanOmni1Quad}}
{{on chip | Illumina Human 1M}}