C2 · rs558702
Where this position leads
Condition: Systemic Lupus Erythematosus
Strength of the evidence
Its strongest genetic-study result is p = 10−21, 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 725 European ancestry cases, 2,438 European ancestry controls.
The effect Each copy of the A allele carried 2.28 times the odds of Systemic lupus erythematosus (95% confidence interval 2.097-2.47); p = 8 × 10−21.
How common The A allele had a frequency of about 10% in the people studied.
Where it sits Chromosome 6, band 6p21.33 — in an intron of C2.
How common each version is
AG
A 7.5% · G 92.5%
A 3.4% · G 96.7%
A 7.1% · G 92.9%
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. No Korean figure for this position yet.
rs558702 is a single position in the genome, in or near the C2 gene. Published research associates it with systemic lupus erythematosus. 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 Systemic Lupus Erythematosus. 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, Genes Immun 2014, PMID:24871463. 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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Systemic lupus erythematosus (rs558702). MyGeneLog™. https://www.mygenelog.com/variants/rs558702