rs3928305

A SNP on chromosome MT. Its most notable genotype is A;G: Heteroplasmy

Gene
None listed
Location
Chr MT1,719 (GRCh38)
Highest magnitude
3.0Important
Tested on
23andMe, AncestryDNA
Minor allele frequency
4%

Genotypes

As shown in 23andMe and AncestryDNA files.

  1. A;ANot ratedDerived valueWorth knowing · 2.03% of people
  2. A;GMost notableNot ratedHeteroplasmyImportant · 3.00% of people
  3. G;GGoodAncestral valueTypical · 0.097% of people

On SNPedia: (A;A), (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 4 HapMap populations.

  • AverageA;A 3% A;G 0% G;G 97%
  • European ancestry (Utah)A;A 3% A;G 0% G;G 97%
  • Han Chinese (Beijing)A;A 2% A;G 0% G;G 98%
  • Japanese (Tokyo)A;A 2% A;G 0% G;G 98%
  • Yoruba (Nigeria)A;A 5% A;G 0% G;G 95%

Genosets

Genosets combine several genotypes. Twofold checks them in your report.

Notes

From SNPedia

Notes

A;G

Usually seen in F1 reports of non-existant offspring. There it is a reminder of a minor bug, how to better handle the sex chromosomes during F1 reports.

Source and license

Adapted from rs3928305 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.