MSRA · rs2975734
Where this position leads
Condition: Sleep and Circadian Rhythm
Strength of the evidence
Its strongest genetic-study result is p = 10−9, 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 38,937 European ancestry morning individuals, 50,346 European ancestry evening individuals, at least 32,842 European ancestry neutral individuals.
The effect Each copy of the G allele shifted the measure 0.023 higher (95% confidence interval 0.015-0.03); p = 2 × 10−9.
How common The G allele had a frequency of about 43% in the people studied.
Where it sits Chromosome 8, band 8p23.1 — in an intron of MSRA.
rs2975734 is a single position in the genome, in or near the MSRA gene. Published research associates it with chronotype. 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 Sleep and Circadian Rhythm. 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, Nature communications 2016, PMID:26835600. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.
Licensed CC BY-NC 4.0: free to read, share and adapt for non-commercial use, naming MyGeneLog™ and linking the exact page. Commercial use, including training or serving a commercial AI system, needs a licence — https://www.mygenelog.com/license
Chronotype (rs2975734). MyGeneLog™. https://www.mygenelog.com/variants/rs2975734