Who was studied 19,883 European ancestry females with ovarian cancer, 378,355 European ancestry females without ovarian cancer.
The effect
Each copy of the G allele carried 1.07 times the odds of High-grade serous ovarian cancer (95% confidence interval 1.04-1.09); p = 2 × 10−8.
How common The G allele had a frequency of about 47% in the people studied.
Where it sits Chromosome 16, band 16q22.1 — a missense change in ACD.
What ClinVar records
ClassificationBenign for Dyskeratosis congenita, autosomal dominant 6; criteria provided, multiple submitters, no conflicts (2 of 4 stars, 9 submitters), last evaluated 2026-02-04.
ClinVar record 1167321NM_001082486.2(ACD):c.1295T>C (p.Val432Ala)
What this is ClinVar's aggregate record for this position (as of its 2026-09-24 release), not a result about you. A classification describes the variant against the condition named, as laboratories submitted it. Whether a person carries this variant, and what that would mean for them, is a question for a clinical test and a genetic counsellor.
What each result means
A/APublished research associates this genotype with typical/baseline likelihood of High-grade serous ovarian cancer — no copies of the reported risk allele.
A/GPublished research associates this genotype (one copy of the reported risk allele) with an intermediate association with High-grade serous ovarian cancer.
G/GPublished research associates this genotype (two copies of the reported risk allele) with a higher likelihood of High-grade serous ovarian cancer compared to the general population.
NPJ genomic medicine · 2025 · PMID 41266372 · open access
Questions about rs6979
What is rs6979?
rs6979 is a single position in the genome, in or near the ACD gene. Published research associates it with high-grade serous ovarian cancer. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.
What conditions is rs6979 linked to?
On MyGeneLog this position is linked to Ovarian Cancer. The research behind each link, and its sources, are set out on that condition page.
Does having rs6979 mean I will get this?
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.
Where does the information about rs6979 come from?
GWAS Catalog, NPJ genomic medicine 2025, PMID:41266372. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.
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Quoting this page
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.
High-grade serous ovarian cancer (rs6979). MyGeneLog™. https://www.mygenelog.com/variants/rs6979