rs9844666

A SNP in the PCCB gene on chromosome 3. Its most notable genotype is A;G: AMD association

Gene
PCCB
Location
Chr 3136,255,374 (GRCh38)
Highest magnitude
0.0Typical
Tested on
23andMe, AncestryDNA, FamilyTreeDNA
Minor allele frequency
9%

Genotypes

As shown in 23andMe and AncestryDNA files.

  1. A;GMost notableBadAMD associationTypical · 0.015% of people
  2. G;GBadAMD associationTypical · 0.083% of people

On SNPedia: (A;G), (G;G). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Frequency

Share of each genotype in 9 HapMap populations.

  • AverageA;G 15% G;G 83%
  • European ancestry (Utah)A;G 29% G;G 68%
  • Han Chinese (Beijing)A;G 0% G;G 100%
  • Japanese (Tokyo)A;G 0% G;G 100%
  • Yoruba (Nigeria)A;G 0% G;G 100%
  • African ancestry (Southwest US)A;G 12% G;G 88%
  • Gujarati IndianA;G 42% G;G 55%
  • Mexican ancestry (Los Angeles)A;G 22% G;G 74%
  • Maasai (Kenya)A;G 6% G;G 94%
  • TuscanA;G 28% G;G 66%

Other PCCB SNPs

All PCCB SNPs

Notes

From SNPedia

Notes

G allele associated with AMD ncbi.nlm.nih.gov

A;G

G allele associated with AMD ncbi.nlm.nih.gov

G;G

G allele associated with AMD ncbi.nlm.nih.gov

Source and license

Adapted from rs9844666 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.