rs671
ALDH2rs671 is a single-nucleotide polymorphism (SNP) in the ALDH2 gene. Genespiral reads it in the Health & Wellness analysis to describe Alcohol Flush Reaction.
- Gene
- ALDH2
- Alleles
- A / G
- Genotypes
- AA, AG, GG
- Traits
- 1 trait across 1 analysis
An rsID such as rs671 is the reference number dbSNP assigns to one position in the genome where people commonly differ by a single letter. Raw data exports from 23andMe and AncestryDNA list your two alleles at that position as a genotype - for this marker one of AA, AG, GG. The order of the two letters carries no meaning, so AG and its reverse are the same genotype.
Alleles on this page are written on the forward (plus) strand, matching how consumer raw files report them. Other references sometimes describe the same variant on the opposite strand, which swaps A↔T and C↔G - see why the same variant can look different. The associations below are educational summaries of published research; they are not diagnoses, and the effect of any single SNP is usually modest.
Alcohol Flush Reaction
Addiction and Substance Response · Part of the Health & Wellness analysis
Encodes an enzyme for alcohol metabolism, affecting alcohol-induced flushing.
| Genotype | Association |
|---|---|
| AA | Flush |
| AG | Flush |
| GG | No Flush |
- Summary
- ALDH2 variations influence the likelihood of experiencing flushing after alcohol consumption.
- Scientific insights
- 'AA' genotype individuals are more likely to experience facial flushing with alcohol intake.
- Lifestyle tips
- Limiting alcohol intake can reduce uncomfortable flush symptoms.
Check your genotype at rs671
Load your raw DNA file and Genespiral looks up rs671 along with every other marker in the Health & Wellness analysis. The file is parsed in your browser and never uploaded, so your genotype stays on your device.
- 1. Download your raw data from 23andMe or AncestryDNA.
- 2. Open the analysis below and choose the file.
- 3. Find Alcohol Flush Reaction in your results.
Related
More markers from Health & Wellness
Articles that discuss rs671
References
Primary databases for this variant. Use them to check allele orientation, population frequencies, and the underlying studies.
- dbSNP entry for rs671 - NCBI
- rs671 variant page - Ensembl
- rs671 summary - SNPedia
- Clinical significance records for rs671 - ClinVar
- ALDH2 gene - NCBI Gene
Genespiral is an educational tool, not a medical service. Genetic associations describe tendencies observed across populations, not certainties for you. Read the full disclaimer.