Clinical and molecular analysis of isovaleric acidemia patients in the United Arab Emirates reveals remarkable phenotypes and four novel mutations in the IVD gene.
Previous studies of fibroblasts from patients with isovaleric acidemia (IVA), an inherited defect in IVD, have revealed that IVD precursor protein produced by type II IVA cells is 3 kDa smaller than normal and is processed inefficiently to a mature form which is also 3 kDa smaller than normal.
IVA is caused by an autosomal recessive deficiency of isovaleryl-CoA dehydrogenase (IVD) resulting in the accumulation of isovaleryl-CoA and its metabolites.
Previous studies of fibroblasts from patients with isovaleric acidemia (IVA), an inherited defect in IVD, have revealed that IVD precursor protein produced by type II IVA cells is 3 kDa smaller than normal and is processed inefficiently to a mature form which is also 3 kDa smaller than normal.
Variants of isovaleryl-CoA dehydrogenase (IVDHase, EC 1.3.99.10) in 15 isovaleric acidemia fibroblast lines were analyzed using [35S]methionine labeling, immunoprecipitation with anti-rat IVDHase antiserum, and NaDodSo4/polyacrylamide gel electrophoresis.
Mutation Spectrum and Birth Prevalence of Inborn Errors of Metabolism among Emiratis: A study from Tawam Hospital Metabolic Center, United Arab Emirates.
Isovaleric acidemia (IVA) is an autosomal recessive inborn error of leucine metabolism caused by deficiency of mitochondrial isovaleryl-CoA dehydrogenase (IVD).
IVA is caused by an autosomal recessive deficiency of isovaleryl-CoA dehydrogenase (IVD) resulting in the accumulation of isovaleryl-CoA and its metabolites.