rs17858963
A SNP in the FMO3 gene on chromosome 1. Its most notable genotype is G;G.
- Gene
- FMO3
- Location
- Chr 1171,110,939 (GRCh38)
- Highest magnitude
- 0.0Typical
- Tested on
- Not on consumer chips
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 11 HapMap populations.
- AverageG;G 82%
- European ancestry (Utah)G;G 86%
- Han Chinese (Beijing)G;G 57%
- Japanese (Tokyo)G;G 74%
- Yoruba (Nigeria)G;G 96%
- African ancestry (Southwest US)G;G 93%
- Chinese (Denver)G;G 58%
- Gujarati IndianG;G 82%
- Luhya (Kenya)G;G 95%
- Mexican ancestry (Los Angeles)G;G 88%
- Maasai (Kenya)G;G 90%
- TuscanG;G 88%
Related
Other FMO3 SNPs
- rs61753344T;Ttrimethylaminuria & possible related issuesImportant
- rs72549320A;Atrimethylaminuria & possible related issues; see discussionWorth knowing
- rs72549321A;Atrimethylaminuria & possible related issues; see discussionWorth knowing
- rs72549322G;Gtrimethylaminuria & possible related issues; see discussionWorth knowing
- rs72549323C;Cpossible trimethylaminuria; see discussionWorth knowing
- rs72549326T;Ttrimethylaminuria & possible related issues; see discussionWorth knowing
- rs72549330T;Ttrimethylaminuria & related issues; see discussionWorth knowing
- rs72549331T;Ttrimethylaminuria & related issues; see discussionWorth knowing
Source and license
Adapted from rs17858963 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.