Standard

Red blood cell count

TSPAN9 · rs71458040

What the study found

Who was studied 545,203 European ancestry individuals.

The effect Each copy of the A allele shifted the measure 0.02 SD unit lower (95% confidence interval 0.015-0.025); p = 9 × 10−16.

How common The A allele had a frequency of about 17% in the people studied.

Where it sits Chromosome 12, band 12p13.33 — in an intron of TSPAN9.

What each result means

A/A Two copies of the version the research linked to Red blood cell count. That is the strongest link of the three results. A link in a study is not a diagnosis.
A/C One copy of the version the research linked to Red blood cell count. That is a smaller link than two copies.
C/C No copy of the version the research linked to Red blood cell count. This is the starting point the study compared everyone against.
Source

Questions about rs71458040

What is rs71458040?

rs71458040 is a single position in the genome, in or near the TSPAN9 gene. Published research associates it with red blood cell count. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

Does having rs71458040 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 rs71458040 come from?

GWAS Catalog, Cell 2020, PMID:32888493. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.

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.

Red blood cell count (rs71458040). MyGeneLog™. https://www.mygenelog.com/variants/rs71458040

← See all variants