Maternally inherited cardiomyopathy: A new phenotype associated with the A to G at nt.3243 of mitochondrial DNA (MELAS mutation)

The A to G transition at nt.3243 of the tRNA^Leu(UUR) gene of mtDNA, commonly associated with MELAS, was detected in several members of a family affected by a maternally inherited form of hypertrophic cardiomyopathy. These findings suggest adding cardiomyopathy in the list of phenotypes associated with the 3243 mutation. © 1997 John Wiley & Sons, Inc. Muscle Nerve, 20, 221–225, 1997.