Standard

Stuttering

near NAA16 · rs556601931

Where this position leads

What the study found

Who was studied 6,346 Latino/Admixed American ancestry male cases, 38,860 Latino/Admixed American ancestry male controls.

The effect Each copy of the T allele carried 6.84 times the odds of Stuttering (95% confidence interval 3.65-12.84); p = 2 × 10⁻⁸.

How common The T allele had a frequency of about 0% in the people studied.

Where it sits Chromosome 13, band 13q14.11 — between genes, 21 kb from TUBBP2.

What each result means

C/C Published research associates this genotype with typical/baseline likelihood of Stuttering — no copies of the reported risk allele.

C/T Published research associates this genotype (one copy of the reported risk allele) with an intermediate association with Stuttering.

T/T Published research associates this genotype (two copies of the reported risk allele) with a higher likelihood of Stuttering compared to the general population.

Source

Large-scale genome-wide analyses of stuttering

Polikowsky HG, Scartozzi AC, Shaw DM, Pruett DG, Chen HH, Petty LE, Petty AS, Lowther EJ, Cho SH, Yu Y, Mozaffari S, Avery CL

and 9 more — show all

Harris KM, Gordon RL, Beilby JM, Viljoen KZ, Jones RM, Huff CD, Highland HM, Kraft SJ, Below JE

23andMe Research Team

Nature genetics · 2025 · PMID 40721530 · open access

Questions about rs556601931

What is rs556601931?

rs556601931 is a single position in the genome, in or near the near NAA16 gene. Published research associates it with stuttering. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

What conditions is rs556601931 linked to?

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

Does having rs556601931 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 rs556601931 come from?

GWAS Catalog, Nature genetics 2025, PMID:40721530. 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.

Stuttering (rs556601931). MyGeneLog™. https://www.mygenelog.com/variants/rs556601931

← See all variants