Standard

Menarche (age at onset)

MCHR2 · rs4840086

Where this position leads

Condition: Age at Menarche

rs4840086 Condition: Age at Menarche Age at Menarche Condition rs4840086 rs4840086 MCHR2

What the study found

Who was studied 86,142 European ancestry female individuals, 557 Old Order Amish (founder/genetic isolate) female individuals, 1,103 Erasmus Rucphen (founder/genetic isolate) female individuals; replicated in Up to 12,813 European ancestry female individuals, 910 Val Borbera (founder/genetic isolate) female individuals, 348 Orcadian (founder/genetic isolate) female individuals, 338 Friuli Venezia Giulia (founder/genetic isolate) female individuals, 322 Carlantino (founder/genetic/isolate) female individuals.

The effect Each copy of the G allele shifted the measure 2.1 week lower (95% confidence interval 1.32-2.88); p = 2 × 10−8.

How common The G allele had a frequency of about 42% in the people studied.

Where it sits Chromosome 6, band 6q16.2 — between genes, 118.2 kb from Y_RNA.

What each result means

A/A No copy of the version the research linked to Menarche (age at onset). This is the starting point the study compared everyone against.
A/G One copy of the version the research linked to Menarche (age at onset). That is a smaller link than two copies.
G/G Two copies of the version the research linked to Menarche (age at onset). That is the strongest link of the three results. A link in a study is not a diagnosis.
Source

Questions about rs4840086

What is rs4840086?

rs4840086 is a single position in the genome, in or near the MCHR2 gene. Published research associates it with menarche (age at onset). A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

What conditions is rs4840086 linked to?

On MyGeneLog this position is linked to Age at Menarche. The research behind each link, and its sources, are set out on that condition page.

Does having rs4840086 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 rs4840086 come from?

GWAS Catalog, Nat Genet 2010, PMID:21102462. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.

Quoting this page

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Menarche (age at onset) (rs4840086). MyGeneLog™. https://www.mygenelog.com/variants/rs4840086

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