rs1799966(T;T)

Common in clinvar

Magnitude
0.0Typical
Repute
Good
Frequency
48%Average of 11 populations
On SNPedia
rs1799966(A;A)Minus strand
Gene
BRCA1

Frequency

Share of people with T;T in each HapMap population.

  • Yoruba (Nigeria)63%
  • Luhya (Kenya)63%
  • Maasai (Kenya)61%
  • Japanese (Tokyo)53%
  • African ancestry (Southwest US)51%
  • Han Chinese (Beijing)46%
  • European ancestry (Utah)46%
  • Mexican ancestry (Los Angeles)41%
  • Tuscan41%
  • Gujarati Indian32%
  • Chinese (Denver)29%

Other genotypes of rs1799966

  1. C;TBadvery slightly increased breast cancer riskMinor · 1.143% of people
  2. C;CMost notableBadvery slightly increased risk for breast cancerWorth knowing · 2.09% of people

All about rs1799966

Source and license

Adapted from rs1799966(A;A) 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.