SCN5A · rs45567533
Where this position leads
Condition: Cardiac Conduction Intervals (PR Interval and QRS Duration)
What the study found
Who was studied 14,756 Hispanic individuals; replicated in 4,296 European ancestry individuals, 3,763 African American individuals, 6,805 East Asian ancestry individuals.
The effect Each copy of the A allele shifted the measure 2.49 ms lower (95% confidence interval 1.76-3.22); p = 1 × 10−11.
How common The A allele had a frequency of about 87% in the people studied.
Where it sits Chromosome 3, band 3p22.2 — in an intron of SCN5A.
What ClinVar records
Classification
Benign; criteria provided, multiple submitters, no conflicts (2 of 4 stars, 2 submitters), last evaluated 2018-06-14.
ClinVar record 678603 NM_000335.5(SCN5A):c.392+242T>C
What this is ClinVar's aggregate record for this position (as of its 2026-09-24 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.
rs45567533 is a single position in the genome, in or near the SCN5A gene. Published research associates it with pr interval. 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 Cardiac Conduction Intervals (PR Interval and QRS Duration). 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, Heart 2017, PMID:29127183. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.
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.
PR interval (rs45567533). MyGeneLog™. https://www.mygenelog.com/variants/rs45567533