rs120074193

A SNP in the KCNQ1 gene on chromosome 11. Its most notable genotype is A;G: Romano-Ward Long QT Syndrome

Gene
KCNQ1
Location
Chr 112,572,870 (GRCh38)
Highest magnitude
5.0Very important
Tested on
AncestryDNA

Genotypes

As shown in 23andMe and AncestryDNA files.

  1. A;GMost notableBadRomano-Ward Long QT SyndromeVery important · 5.0
  2. G;GGoodcommon in clinvarTypical · 0.0

On SNPedia: (A;G), (G;G). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Notes

From SNPedia

Notes

Analysis of employment turnover and job satisfaction of physician's assistants graduated from the Physician's Assistant Program of the University of Alabama in Birmingham, 1972-1975. Swimming, a gene-specific arrhythmogenic trigger for inherited long QT syndrome. Spectrum of mutations in long-QT syndrome genes. KVLQT1, HERG, SCN5A, KCNE1, and KCNE2. Mutation in KCNQ1 that has both recessive and dominant characteristics. KCNQ1 mutations in patients with a family history of lethal cardiac arrhythmias and sudden death. Location of mutation in the KCNQ1 and phenotypic presentation of long QT syndrome.

Source and license

Adapted from rs120074193 on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.

SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.