rs1805128
A SNP in the KCNE1 gene on chromosome 21. Its most notable genotype is C;C: common in complete genomics
- Gene
- KCNE1
- Location
- Chr 2134,449,382 (GRCh38)
- Highest magnitude
- 0.0Typical
- Tested on
- 23andMe, FamilyTreeDNA
- Minor allele frequency
- <1%
Genotypes
Plus strand, as in 23andMe and AncestryDNA files.
SNPedia records rs1805128 on the minus strand: (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.
- AverageC;C 98%
- European ancestry (Utah)C;C 95%
- Han Chinese (Beijing)C;C 100%
- Japanese (Tokyo)C;C 98%
- Yoruba (Nigeria)C;C 100%
Related
Notes
From SNPedia
Notes
23andMe blog Influences QT interval
Source and license
Adapted from rs1805128 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.