rs1799732

A SNP in the DRD2 gene on chromosome 11. Its most notable genotype is -;-: less favorable clinical outcome when on antipsychotics

Gene
DRD2
Location
Chr 11113,475,529 (GRCh38)
Highest magnitude
2.0Worth knowing
Tested on
23andMe
Minor allele frequency
23%

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

  1. -;-Most notableBadless favorable clinical outcome when on antipsychoticsWorth knowing · 2.0
  2. -;GBad1.3x increased adenoma recurrence riskWorth knowing · 2.0
  3. G;GGoodnormalTypical · 0.0

SNPedia records rs1799732 on the minus strand: (-;-), (-;C), (C;C). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Conditions, medicines and genes

Notes

From SNPedia

Show notes, about 130 words

rs1799732 is a SNP in the D2 dopamine receptor gene DRD2 gene. Although dbSNP indicates the alleles as (C) or (-) (i.e. a deletion), investigators report the alleles as (C) or (T). In a study of individuals in the Polyp Prevention Trial with any, multiple (>/=2) or advanced colorectal adenoma recurrence after 4 years, compared to those without adenoma recurrence, rs1799732(C;T) individuals were significantly associated with all adenoma recurrence (odds ratio 1.30, CI: 1.01-1.69). The authors speculate this increased risk of adenoma recurrence (and an association with colorectal cancer) may be related to SNP-associated differences in alcohol and fat intake. 23andMe blog Alcoholism related *rs1799971(A;A) severe alcoholism 2x *rs1799732(I;I) severe alcoholism 1.85x

Source and license

Adapted from rs1799732 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.