rs774452124
A SNP in the SCN4A gene on chromosome 17. Its most notable genotype is C;T: SIDS predisposition??
- Gene
- SCN4A
- Location
- Chr 1763,941,958 (GRCh38)
- Highest magnitude
- 2.9Worth knowing
- Tested on
- Not on consumer chips
Genotypes
As shown in 23andMe and AncestryDNA files.
- C;CGoodcommon/normal
- C;TMost notableBadSIDS predisposition??
On SNPedia: (C;C), (C;T). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.
Related
Conditions, medicines and genes
Other SCN4A SNPs
- rs121908548C;TPotassium aggravated myotonia; paramyotonia congenitaVery important
- rs80338784C;Tpossibility of Hypokalemic periodic paralysisImportant
- rs80338785G;Tpossibility of Hypokalemic periodic paralysisImportant
- rs80338788C;Tpossibility of Hypokalemic periodic paralysisImportant
- rs121908555A;Gpossibility of Hypokalemic periodic paralysisImportant
- rs751368967C;GSIDS predisposition??Worth knowing
- rs774453167G;TSIDS predisposition??Worth knowing
Notes
From SNPedia
Notes
aka c.4324G>A (p.Val1442Met) Possible association of minor allele of this SCN4A gene variant with predisposition to Sudden Infant Death Syndrome, based on exome analysis
C;T
see linked article via main rs-page
Source and license
Adapted from rs774452124 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.