rs17251221
A SNP in the CASR gene on chromosome 3. Its most notable genotype is A;A: common on affy axiom data
- Gene
- CASR
- Location
- Chr 3122,274,400 (GRCh38)
- Highest magnitude
- 0.0Typical
- Tested on
- 23andMe, AncestryDNA
- Minor allele frequency
- 8%
Genotypes
As shown in 23andMe and AncestryDNA files.
On SNPedia: (A;A). 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.
- AverageA;A 92%
- European ancestry (Utah)A;A 78%
- Han Chinese (Beijing)A;A 98%
- Japanese (Tokyo)A;A 96%
- Yoruba (Nigeria)A;A 98%
Related
Notes
From SNPedia
Notes
Genome-wide meta-analysis for serum calcium identifies significantly associated SNPs near the calcium-sensing receptor (CASR) gene. Genome-wide association studies of serum magnesium, potassium, and sodium concentrations identify six Loci influencing serum magnesium levels.
Source and license
Adapted from rs17251221 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.