rs1573496

A SNP in the ADH7 gene on chromosome 4. Its most notable genotype is C;C: normal

Gene
ADH7
Location
Chr 499,428,512 (GRCh38)
Highest magnitude
0.0Typical
Tested on
23andMe, AncestryDNA
Minor allele frequency
6%

Genotypes

As shown in 23andMe and AncestryDNA files.

  1. C;CMost notableGoodnormalTypical · 0.095% of people
  2. C;GGood0.68x decreased risk of oral/throat cancersTypical · 0.05% of people
  3. G;GGood0.68x decreased risk of oral/throat cancersTypical · 0.00% of people

On SNPedia: (C;C), (C;G), (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.

  • AverageC;C 95% C;G 5% G;G 0%
  • European ancestry (Utah)C;C 80% C;G 20% G;G 0%
  • Han Chinese (Beijing)C;C 100% C;G 0% G;G 0%
  • Japanese (Tokyo)C;C 100% C;G 0% G;G 0%
  • Yoruba (Nigeria)C;C 100% C;G 0% G;G 0%

Notes

From SNPedia

Show notes, about 260 words

rs1573496 is a SNP in the ADH7 alcohol dehydrogenase 7 gene. A study of over 3,800 cases of "upper aerodigestive" cancers (mouth/throat, voice box, and esophageal cancers) concluded that the rs1573496(G) allele has a protective effect. Carriers of this allele had a 0.68x (decreased; p=10 -9 ) risk of having one of these cancer types. A Genome-Wide Association Study of Upper Aerodigestive Tract Cancers Conducted within the INHANCE Consortium. The data in this paper, makes it seem that (G;G) was much more common. This is inconsistent with the HapMap frequencies, suggesting the sequence may have been flipped. Diplotype trend regression analysis of the ADH gene cluster and the ALDH2 gene: multiple significant associations with alcohol dependence. Multiple ADH genes modulate risk for drug dependence in both African- and European-Americans. Evidence of positive selection on a class I ADH locus. Association of ADH and ALDH genes with alcohol dependence in the Irish Affected Sib Pair Study of alcohol dependence (IASPSAD) sample. ADH single nucleotide polymorphism associations with alcohol metabolism in vivo. Associations and interactions between SNPs in the alcohol metabolizing genes and alcoholism phenotypes in European Americans. A non-synonymous variant in ADH1B is strongly associated with prenatal alcohol use in a European sample of pregnant women. The association of alcohol and alcohol metabolizing gene variants with diabetes and coronary heart disease risk factors in a white population. Esophageal Cancer: Preliminary Research Larynx Cancer Oral and Throat Cancers

Source and license

Adapted from rs1573496 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.