rs11881222
A SNP in the IL28B gene on chromosome 19. Its most notable genotype is A;A: common in clinvar
- Gene
- IL28B
- Location
- Chr 1939,244,283 (GRCh38)
- Highest magnitude
- 0.0Typical
- Tested on
- 23andMe, AncestryDNA, FamilyTreeDNA
- Minor allele frequency
- 26%
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 67%
- European ancestry (Utah)A;A 52%
- Han Chinese (Beijing)A;A 93%
- Japanese (Tokyo)A;A 80%
- Yoruba (Nigeria)A;A 44%
Source and license
Adapted from rs11881222 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.