rs1800278

A SNP in the DMD gene on chromosome X. Its most notable genotype is C;C.

Gene
DMD
Location
Chr X31,478,309 (GRCh38)
Highest magnitude
0.5Typical
Tested on
23andMe, AncestryDNA, FamilyTreeDNA
Minor allele frequency
4%

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

  1. T;TGoodcommon in clinvarTypical · 0.095% of people
  2. C;CMost notableNot ratedNo summary available.Typical · 0.52% of people

SNPedia records rs1800278 on the minus strand: (A;A), (G;G). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Frequency

Share of each genotype in 9 HapMap populations.

  • AverageT;T 95% C;C 2%
  • European ancestry (Utah)T;T 99% C;C <1%
  • Han Chinese (Beijing)T;T 96% C;C 2%
  • Japanese (Tokyo)T;T 97% C;C 0%
  • Yoruba (Nigeria)T;T 94% C;C 2%
  • Chinese (Denver)T;T 97% C;C 0%
  • Luhya (Kenya)T;T 86% C;C 9%
  • Mexican ancestry (Los Angeles)T;T 97% C;C 2%
  • Maasai (Kenya)T;T 89% C;C 6%
  • TuscanT;T 97% C;C 1%

Conditions, medicines and genes

Other DMD SNPs

All DMD SNPs

Notes

From SNPedia

Notes

omim notes that links this snp to Duchenne muscular dystrophy, but hapmap frequency makes that seem very unlikely.

C;C

omim notes that links this snp to DUCHENNE MUSCULAR DYSTROPHY, but hapmap frequency makes that seem very unlikely.

References

Source and license

Adapted from rs1800278 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.