Two closely spaced nonsense mutations in the DMD gene in a Malaysian family

Mol Genet Metab. 2011 Jul;103(3):303-4. doi: 10.1016/j.ymgme.2011.04.002. Epub 2011 Apr 8.

Abstract

In Duchenne muscular dystrophy (DMD), identification of one nonsense mutation in the DMD gene has been considered an endpoint of genetic diagnosis. Here, we identified two closely spaced nonsense mutations in the DMD gene. In a Malaysian DMD patient two nonsense mutations (p.234S>X and p.249Q>X, respectively) were identified within exon 8. The proband's mother carried both mutations on one allele. Multiple mutations may explain the occasional discrepancies between genotype and phenotype in dystrophinopathy.

Publication types

  • Case Reports
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Asian People / genetics
  • Codon, Nonsense / genetics*
  • Dystrophin / genetics*
  • Exons
  • Genotype
  • Humans
  • Introns
  • Malaysia
  • Male
  • Muscular Dystrophy, Duchenne / genetics*

Substances

  • Codon, Nonsense
  • Dystrophin