rs5934505

A SNP on chromosome X. Its most notable genotype is T;T: most common genotype, lower testosterone

Gene
None listed
Location
Chr X8,945,785 (GRCh38)
Highest magnitude
0.0Typical
Tested on
23andMe, AncestryDNA
Minor allele frequency
27%

Genotypes

As shown in 23andMe and AncestryDNA files.

  1. T;TMost notableNot ratedmost common genotype, lower testosteroneTypical · 0.067% of people

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

Frequency

Share of each genotype in 5 HapMap populations.

  • AverageT;T 67%
  • European ancestry (Utah)T;T 68%
  • Han Chinese (Beijing)T;T 71%
  • Japanese (Tokyo)T;T 57%
  • Yoruba (Nigeria)T;T 64%
  • Chinese (Denver)T;T 78%

Genosets

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

Notes

From SNPedia

Notes

"Genetic determinants of serum testosterone concentrations in men" - The rs5934505 polymorphism near FAM9B on the X chromosome was also associated with testosterone concentrations (p?=?5.6×10(-16)). The mean serum testosterone and calculated free testosterone but not SHBG concentrations were lower in men with T genotype than in those with C genotype for rs5934505.

Source and license

Adapted from rs5934505 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.