TGFA · rs3771501
Where this position leads
Condition: Knee Osteoarthritis
Strength of the evidence
Its strongest genetic-study result is p = 10−15, with 4 associations in the GWAS Catalog.
4: ClinVar disease-causing, reviewed by an expert panel or a guideline (3–4 stars). 3: ClinVar, several labs agreeing (2 stars), or a genetic study at p ≤ 10−50. 2: ClinVar from one lab (1 star), or p ≤ 10−20. 1: ClinVar submitted without criteria (0 stars), or genome-wide significance (p ≤ 5×10−8). The higher of the two counts. It says how solid the evidence is, not whether it matters for a particular person.
What the study found
Who was studied 77,052 European ancestry cases, 378,169 European ancestry controls.
The effect Each copy of the G allele carried 1.05 times the odds of Osteoarthritis (95% confidence interval 1.03-1.06); p = 2 × 10−8.
How common The G allele had a frequency of about 53% in the people studied.
Where it sits Chromosome 2, band 2p13.3 — in an intron of TGFA.
How common each version is
AG
A 37.8% · G 62.2%
A 39.1% · G 60.9%
A 40.1% · G 59.9%
A 37.9% · G 62.1%
A 42.9% · G 57.1%
A 40.8% · G 59.2%
A 38.4% · G 61.6%
A 39.7% · G 60.3%
The share of all copies of this position that are each version. Source: the population studies published in dbSNP (US NCBI); each row names its study.
rs3771501 is a single position in the genome, in or near the TGFA gene. Published research associates it with osteoarthritis. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.
On MyGeneLog this position is linked to Knee Osteoarthritis. The research behind each link, and its sources, are set out on that condition page.
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, Nat Genet 2019, PMID:30664745. 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.
Osteoarthritis (rs3771501). MyGeneLog™. https://www.mygenelog.com/variants/rs3771501