0 1822113Reads by AI crawlersClaude0ChatGPT0Google · Gemini0Perplexity0Meta AI0Microsoft · Copilot0Amazon2Apple2China (ByteDance, Huawei, Baidu…)1ByteDance (Doubao)1Others13Total18Counted by the name each crawler declares; requests found to be impersonating one are left out. Google · Gemini includes Googlebot, the search crawler whose index Google also uses for its AI features. Other search engines and bots are under Others.
Who was studied 76,192 European ancestry cases, 63,082 European ancestry controls; replicated in 46,785 European ancestry cases, 42,892 European ancestry controls, 14,068 East Asian ancestry cases, 13,104 East Asian ancestry controls.
The effect
The reported allele is T; the catalogue records no effect size
; p = 3 × 10−10.
How common The T allele had a frequency of about 38% in the people studied.
Where it sits Chromosome 6, band 6p22.3 — in an intron of CDKAL1.
What each result means
C/CNo copy of the version the research linked to Breast cancer. This is the starting point the study compared everyone against.
C/TOne copy of the version the research linked to Breast cancer. That is a smaller link than two copies.
T/TTwo copies of the version the research linked to Breast cancer. That is the strongest link of the three results. A link in a study is not a diagnosis.
rs2223621 is a single position in the genome, in or near the CDKAL1 gene. Published research associates it with breast 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 rs2223621 linked to?
On MyGeneLog this position is linked to Breast Cancer. The research behind each link, and its sources, are set out on that condition page.
Does having rs2223621 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 rs2223621 come from?
GWAS Catalog, Nature 2017, PMID:29059683. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.
0 1822113Reads by AI crawlersClaude0ChatGPT0Google · Gemini0Perplexity0Meta AI0Microsoft · Copilot0Amazon2Apple2China (ByteDance, Huawei, Baidu…)1ByteDance (Doubao)1Others13Total18Counted by the name each crawler declares; requests found to be impersonating one are left out. Google · Gemini includes Googlebot, the search crawler whose index Google also uses for its AI features. Other search engines and bots are under Others.
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.
Breast cancer (rs2223621). MyGeneLog™. https://www.mygenelog.com/variants/rs2223621