rs3743484
A SNP in the CYP1A2 gene on chromosome 15. Its most notable genotype is G;G: common genotype
- Gene
- CYP1A2
- Location
- Chr 1574,752,059 (GRCh38)
- Highest magnitude
- 0.0Typical
- Tested on
- 23andMe, AncestryDNA
Genotypes
As shown in 23andMe and AncestryDNA files.
On SNPedia: (G;G). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.
Frequency
Share of each genotype in 4 HapMap populations.
- AverageG;G 84%
- European ancestry (Utah)G;G 92%
- Han Chinese (Beijing)G;G 72%
- Japanese (Tokyo)G;G 78%
- Yoruba (Nigeria)G;G 95%
Related
Other CYP1A2 SNPs
- rs12720461C;Tcarrier of one CYP1A2*1K_-729C>T allele, decreased CYP1A2 activityWorth knowing
- rs28399424C;Tcarrier of one CYP1A2*6 alleleWorth knowing
- rs72547513A;CNo summary available.Worth knowing
- rs762551A;AFaster caffeine metabolism in smokers and heavy coffee consumersMinor
- rs2069526G;GCYP1A2*1K_-739T>G homozygoteTypical
- rs2470890C;CCYP1A2_1545T>C homozygoteTypical
Source and license
Adapted from rs3743484 on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.
SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.