A novel familial case of diffuse leukodystrophy related to NDUFV1 compound heterozygous mutations

Abstract

NDUFV1 mutations have been related to encephalopathic phenotypes due to mitochondrial energy metabolism disturbances. In this study, we report two siblings affected by a diffuse leukodystrophy, who carry the NDUFV1 c.1156C>T (p.Arg386Cys) missense mutation and a novel 42-bp deletion. Bioinformatic and molecular analysis indicated that this deletion lead to the synthesis of mRNA molecules carrying a premature stop codon, which might be degraded by the nonsense-mediated decay system. Our results add information on the molecular basis and the phenotypic features of mitochondrial disease caused by NDUFV1 mutations.

Keywords: CI; Diffuse leukodystrophy; Genetics; MD; Mitochondrial disease; NDUFV1 mutations; NMD; complex I; mitochondrial respiratory chain disorders; nonsense-mediated decay.