rs199473222
A SNP in the SCN5A gene on chromosome 3. Its most notable genotype is A;C: Romano-Ward Long QT Syndrome
- Gene
- SCN5A
- Location
- Chr 338,560,416 (GRCh38)
- Highest magnitude
- 5.0Very important
- Tested on
- AncestryDNA
Genotypes
Plus strand, as in 23andMe and AncestryDNA files.
- C;CGoodcommon in clinvar
- A;CMost notableBadRomano-Ward Long QT Syndrome
SNPedia records rs199473222 on the minus strand: (G;G), (G;T). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.
Related
Other SCN5A SNPs
- rs137854606A;CBrugada SyndromeVery important
- rs137854612C;TBrugada SyndromeVery important
- rs137854615A;GBrugada SyndromeVery important
- rs137854620C;TBrugada SyndromeVery important
- rs199473058C;TBrugada SyndromeVery important
- rs199473083C;TBrugada SyndromeVery important
- rs199473225A;GBrugada SyndromeVery important
- rs199473249C;GBrugada SyndromeVery important
Source and license
Adapted from rs199473222 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.