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Ascending thoracic aortic diameter

ABCC8 · rs77889556

What the study found

Who was studied 33,637 European ancestry individuals.

The effect Each copy of the G allele shifted the measure 0.0507 lower (95% confidence interval 0.032-0.069); p = 5 × 10−9.

How common The G allele had a frequency of about 83% in the people studied.

Where it sits Chromosome 11, band 11p15.1 — in an intron of ABCC8.

What ClinVar records

Classification Benign; criteria provided, multiple submitters, no conflicts (2 of 4 stars, 2 submitters), last evaluated 2018-08-17. ClinVar record 1289346 NM_000352.6(ABCC8):c.148+119C>T

What this is ClinVar's aggregate record for this position (as of its 2026-10-12 release), not a result about you. A classification describes the variant against the condition named, as laboratories submitted it. Whether a person carries this variant, and what that would mean for them, is a question for a clinical test and a genetic counsellor.

What each result means

A/A No copy of the version the research linked to Ascending thoracic aortic diameter. This is the starting point the study compared everyone against.
A/G One copy of the version the research linked to Ascending thoracic aortic diameter. That is a smaller link than two copies.
G/G Two copies of the version the research linked to Ascending thoracic aortic diameter. That is the strongest link of the three results. A link in a study is not a diagnosis.
Source

Questions about rs77889556

What is rs77889556?

rs77889556 is a single position in the genome, in or near the ABCC8 gene. Published research associates it with ascending thoracic aortic diameter. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

Does having rs77889556 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 rs77889556 come from?

GWAS Catalog, Nature genetics 2022, PMID:34837083. 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.

Ascending thoracic aortic diameter (rs77889556). MyGeneLog™. https://www.mygenelog.com/variants/rs77889556

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