rs1800844
A SNP in the PSEN1 gene on chromosome 14. Its most notable genotype is G;G: common in complete genomics
- Gene
- PSEN1
- Location
- Chr 1473,136,992 (GRCh38)
- Highest magnitude
- 0.0Typical
- Tested on
- Not on consumer chips
- Minor allele frequency
- 23%
Genotypes
As shown in 23andMe and AncestryDNA files.
On SNPedia: (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.
- AverageG;G 56%
- European ancestry (Utah)G;G 65%
- Han Chinese (Beijing)G;G 31%
- Japanese (Tokyo)G;G 30%
- Yoruba (Nigeria)G;G 100%
Related
Other PSEN1 SNPs
- rs661A;Aearly onset Alzheimer's diseaseVery important
- rs63749885C;Tearly-onset Alzheimers diseaseVery important
- rs63749891C;Gearly-onset Alzheimers diseaseVery important
- rs63750577C;Tearly-onset Alzheimers diseaseVery important
- rs63750599C;Tearly-onset Alzheimers diseaseVery important
- rs63750815G;Tearly-onset Alzheimers diseaseVery important
- rs63750886C;Gearly-onset Alzheimers diseaseVery important
- rs63750900A;Gearly-onset Alzheimers diseaseVery important
Source and license
Adapted from rs1800844 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.