rs3842936
A SNP on chromosome 12. Its most notable genotype is C;T.
- Gene
- None listed
- Location
- Chr 1258,407,244 (GRCh38)
- Highest magnitude
- 0.0Typical
- Tested on
- 23andMe, AncestryDNA, FamilyTreeDNA
- Minor allele frequency
- 47%
Genotypes
Plus strand, as in 23andMe and AncestryDNA files.
SNPedia records rs3842936 on the minus strand: (A;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.
- AverageC;T 53%
- European ancestry (Utah)C;T 52%
- Han Chinese (Beijing)C;T 50%
- Japanese (Tokyo)C;T 67%
- Yoruba (Nigeria)C;T 50%
- African ancestry (Southwest US)C;T 54%
- Chinese (Denver)C;T 62%
- Gujarati IndianC;T 51%
- Luhya (Kenya)C;T 43%
- Mexican ancestry (Los Angeles)C;T 47%
- Maasai (Kenya)C;T 52%
- TuscanC;T 54%
Notes
From SNPedia
Notes
This SNP was originally reported in 2008 as marking one end of a chromosomal region associated with Native American myopathy. A few years later, in 2013, a mutation known as W284 (rs140291094) was identified as a specific mutation from this region of chromosome 12 that, when present in homozygous form, leads to this syndrome. rs3842936 is therefore a polymorphism without any functional consequence as far as is currently known.
Source and license
Adapted from rs3842936 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.