2 472223234227Reads by AI crawlersClaude2ChatGPT2Google · Gemini0Perplexity2Meta AI3Microsoft · Copilot2Amazon3Apple4China (ByteDance, Huawei, Baidu…)2ByteDance (Doubao)2Others27Total47Counted 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 452,633 European ancestry individuals; replicated in 541,333 European ancestry individuals.
The effect
Each copy of the G allele shifted the measure 0.0062 higher (95% confidence interval 0.0042-0.0082); p = 3 × 10−10.
Where it sits Chromosome 6, band 6q16.2 — between genes, 10.3 kb from Y_RNA.
What each result means
C/CNo copy of the version the research linked to Daytime nap. This is the starting point the study compared everyone against.
C/GOne copy of the version the research linked to Daytime nap. That is a smaller link than two copies.
G/GTwo copies of the version the research linked to Daytime nap. That is the strongest link of the three results. A link in a study is not a diagnosis.
Nature communications · 2021 · PMID 33568662 · open access
Questions about rs9389556
What is rs9389556?
rs9389556 is a single position in the genome, in or near the PRDM13 gene. Published research associates it with daytime nap. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.
What conditions is rs9389556 linked to?
On MyGeneLog this position is linked to Sleep and Circadian Rhythm. The research behind each link, and its sources, are set out on that condition page.
Does having rs9389556 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 rs9389556 come from?
GWAS Catalog, Nat Commun 2021, PMID:33568662. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.
2 472223234227Reads by AI crawlersClaude2ChatGPT2Google · Gemini0Perplexity2Meta AI3Microsoft · Copilot2Amazon3Apple4China (ByteDance, Huawei, Baidu…)2ByteDance (Doubao)2Others27Total47Counted 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.
Daytime nap (rs9389556). MyGeneLog™. https://www.mygenelog.com/variants/rs9389556