Contribution of arylsulfatase A mutations located on the same allele to enzyme activity reduction and metachromatic leukodystrophy severity.

Abstract excerpt

The occurrence of different mutations on the same arylsulfatase A allele is not uncommon, due to the high frequency of several variants, among which the pseudodeficiency mutations are particularly important. We identified a late infantile metachromatic leukodystrophy patient carrying on one allele the new E253K mutation and the known T391S polymorphism, and on the other allele the common P426L mutation, usually...

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