rs17085007

A SNP on chromosome 13. Its most notable genotype is C;C: >1.35x increased risk for ulcerative colitis

Gene
None listed
Location
Chr 1326,957,130 (GRCh38)
Highest magnitude
0.0Typical
Tested on
23andMe, AncestryDNA
Minor allele frequency
16%

Genotypes

As shown in 23andMe and AncestryDNA files.

  1. C;CMost notableBad>1.35x increased risk for ulcerative colitisTypical · 0.03% of people
  2. C;TBad1.35x increased risk for ulcerative colitisTypical · 0.027% of people
  3. T;TGood1x normal risk for ulcerative colitisTypical · 0.070% of people

On SNPedia: (C;C), (C;T), (T;T). 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;C 3% C;T 27% T;T 70%
  • European ancestry (Utah)C;C 2% C;T 27% T;T 72%
  • Han Chinese (Beijing)C;C 4% C;T 32% T;T 64%
  • Japanese (Tokyo)C;C 4% C;T 34% T;T 63%
  • Yoruba (Nigeria)C;C 0% C;T 14% T;T 86%
  • African ancestry (Southwest US)C;C 2% C;T 11% T;T 88%
  • Chinese (Denver)C;C 8% C;T 32% T;T 60%
  • Gujarati IndianC;C 6% C;T 41% T;T 54%
  • Luhya (Kenya)C;C 0% C;T 16% T;T 84%
  • Mexican ancestry (Los Angeles)C;C 2% C;T 35% T;T 64%
  • Maasai (Kenya)C;C 3% C;T 31% T;T 67%
  • TuscanC;C 3% C;T 30% T;T 67%

Source and license

Adapted from rs17085007 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.