Novel missense mutation (R94S) in the TAZ ( G4.5) gene in a Japanese patient with Barth syndrome.

Barth syndrome (BTHS) is a rare X-linked disorder characterized by cardiomyopathy, short stature, neutropenia, and 3-methylglutaconic aciduria. Mutations have been identified in the TAZ ( G4.5) gene in patients with BTHS. This article presents a mutation analysis of this gene in a Japanese boy with cardiomyopathy with abnormal mitochondria, cyclic neutropenia, and 3-methylglutaconic aciduria (type 2). The analysis revealed a novel missense mutation (R94S) caused by a single nucleotide substitution (C-to-A) in this patient.