rs12720461(T;T)

CYP1A2*1K_-729C>T homozygote, decreased CYP1A2 activity

Magnitude
2.0Worth knowing
Repute
Bad
Frequency
<1%Average of 7 populations
On SNPedia
rs12720461(T;T)
Gene
CYP1A2

Frequency

Share of people with T;T in each HapMap population.

  • Han Chinese (Beijing)2%
  • European ancestry (Utah)0%
  • Japanese (Tokyo)0%
  • Yoruba (Nigeria)0%
  • Gujarati Indian0%
  • Maasai (Kenya)0%
  • Tuscan0%

Other genotypes of rs12720461

  1. C;CGoodnormalTypical · 0.099% of people
  2. C;TMost notableBadcarrier of one CYP1A2*1K_-729C>T allele, decreased CYP1A2 activityWorth knowing · 2.0<1% of people

All about rs12720461

Source and license

Adapted from rs12720461(T;T) 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.