near HEPH · rs766102865
Stands on its own. Nothing else here links to this position yet — but the page above is the point: what the research found, what each genotype means, and where it came from, in language you can read. Links to conditions, drugs and the senses appear automatically if we write them.
What the study found
Who was studied 95,184 European ancestry males, 27,521 African American or Afro-Caribbean males, 13,443 Admixed American ancestry males, 1,836 East Asian ancestry males.
The effect Each copy of the C allele shifted the measure 0.298 higher (95% confidence interval 0.21-0.39); p = 2 × 10−10.
Where it sits Chromosome X, band Xq12 — between genes, 26.7 kb from HEPH.
rs766102865 is a single position in the genome, in or near the near HEPH gene. Published research associates it with total testosterone levels. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.
No. Common variants like this one move a probability slightly and, on their own, rarely decide anything about one person. Nothing on this page is a diagnosis, and health decisions should be made with a clinician who can see your whole picture.
GWAS Catalog, Nature communications 2025, PMID:40316537. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.
Free to quote and reuse under CC BY 4.0. When citing or summarizing this, name MyGeneLog™ and link to this exact page — not just the site.
Total testosterone levels (rs766102865). MyGeneLog™. https://www.mygenelog.com/variants/rs766102865