rs4420638(A;A)

Normal/Average risk for Alzheimer's

Magnitude
0.0Typical
Repute
Good
Frequency
74%Average of 10 populations
On SNPedia
rs4420638(A;A)
Gene
APOC1

Frequency

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

  • Gujarati Indian87%
  • Japanese (Tokyo)86%
  • Mexican ancestry (Los Angeles)83%
  • Chinese (Denver)81%
  • Yoruba (Nigeria)76%
  • Han Chinese (Beijing)75%
  • Tuscan74%
  • Maasai (Kenya)65%
  • European ancestry (Utah)63%
  • African ancestry (Southwest US)53%

Other genotypes of rs4420638

  1. A;GBad~3x increased Alzheimer's risk; 1.4x increased heart disease risk ; increased LDL cholesterolWorth knowing · 2.026% of people
  2. G;GMost notableBad2x+ increased Alzheimer's risk, further genotyping suggested ; increased LDL cholesterolImportant · 3.00% of people

All about rs4420638

Source and license

Adapted from rs4420638(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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.