rs121909523
A SNP in the ACTA1 gene on chromosome 1. Its most notable genotype is A;A: Nemaline Myopathy 3
- Gene
- ACTA1
- Location
- Chr 1229,432,020 (GRCh38)
- Highest magnitude
- 4.0Very important
- Tested on
- Not on consumer chips
Genotypes
Plus strand, as in 23andMe and AncestryDNA files.
- T;TGoodcommon in clinvar
- A;TNot ratedNemaline Myopathy 3
- A;AMost notableBadNemaline Myopathy 3
SNPedia records rs121909523 on the minus strand: (A;A), (A;T), (T;T). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.
Related
Other ACTA1 SNPs
- rs121909519G;GNemaline Myopathy 3Very important
- rs121909520C;CNemaline Myopathy 3Very important
- rs121909521G;GNemaline Myopathy 3Very important
- rs121909522A;ANemaline Myopathy 3Very important
- rs121909524G;GNemaline Myopathy 3Very important
- rs121909525A;ANemaline Myopathy 3Very important
- rs121909526C;CNemaline Myopathy 3Very important
- rs121909527A;ANemaline Myopathy 3Very important
Source and license
Adapted from rs121909523 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.