Article
Maple syrup urine disease in Mennonites. Evidence that the Y393N mutation in E1 alpha impedes assembly of the E1 component of branched-chain alpha-keto acid dehydrogenase complex.
The Journal of clinical investigation - 1 Sept 1991
Fisher C R, Chuang J L, Cox R P, Fisher C W, Star R A, Chuang D T
Abstract excerpt
Maple Syrup Urine Disease (MSUD) in Mennonites is associated with homozygosity for a T to A transversion in the E1 alpha gene of the branched-chain alpha-keto acid dehydrogenase complex. This causes a tyrosine to asparagine substitution at position 393 (Y393N). To assess the functional significance of this missense mutation, we have carried out transfection studies using E1 alpha-deficient MSUD lymphoblasts (Lo)...
Topics
- 3-Methyl-2-Oxobutanoate Dehydrogenase (Lipoamide)
- Christianity
- DNA
- Ethnicity
- Humans
- Ketone Oxidoreductases
- Maple Syrup Urine Disease
- Multienzyme Complexes
- Mutation