CACNA1C · rs3794303
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.
Strength of the evidence
Its strongest genetic-study result is p = 10−8, with 1 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 762 Black African ancestry individuals, 133 Mixed ancestry individuals, 94 Black African or Mixed ancestry individuals, 515 African American individuals.
The effect Each copy of the G allele shifted the measure 0.322 higher (95% confidence interval 0.21-0.44); p = 3 × 10−8.
How common The G allele had a frequency of about 12% in the people studied.
Where it sits Chromosome 12, band 12p13.33 — in an intron of CACNA1C.
rs3794303 is a single position in the genome, in or near the CACNA1C gene. Published research associates it with stable warfarin dose. 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, Blood advances 2024, PMID:39163621. 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.
Stable warfarin dose (rs3794303). MyGeneLog™. https://www.mygenelog.com/variants/rs3794303