rs9561778(T;T)

~2x increased risk of adverse drug reactions from cyclophosphamide treatments

Magnitude
1.5Minor
Repute
Bad
Frequency
3%Average of 11 populations
On SNPedia
rs9561778(T;T)
Gene
ABCC4

Frequency

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

  • Han Chinese (Beijing)10%
  • Chinese (Denver)9%
  • Gujarati Indian5%
  • European ancestry (Utah)3%
  • Mexican ancestry (Los Angeles)2%
  • Yoruba (Nigeria)1%
  • Tuscan1%
  • Maasai (Kenya)<1%
  • Japanese (Tokyo)0%
  • African ancestry (Southwest US)0%
  • Luhya (Kenya)0%

Other genotypes of rs9561778

  1. G;GGoodNormal risk of adverse drug reactions from cyclophosphamide treatmentsMinor · 1.069% of people
  2. G;TMost notableBad~2x increased risk of adverse drug reactions from cyclophosphamide treatmentsMinor · 1.529% of people

All about rs9561778

Source and license

Adapted from rs9561778(T;T) 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.