Late-onset metachromatic leukodystrophy: molecular pathology in two siblings.

Abstract:

:We report on a new allele at the arylsulfatase A (ARSA) locus causing late-onset metachromatic leukodystrophy (MLD). In that allele arginine84, a residue that is highly conserved in the arylsulfatase gene family, is replaced by glutamine. In contrast to alleles that cause early-onset MLD, the arginine84 to glutamine substitution is associated with some residual ARSA activity. A comparison of genotypes, ARSA activities, and clinical data on 4 individuals carrying the allele of 81 patients with MLD examined, further validates the concept that different degrees of residual ARSA activity are the basis of phenotypical variation in MLD.

journal_name

Ann Neurol

journal_title

Annals of neurology

authors

Kappler J,von Figura K,Gieselmann V

doi

10.1002/ana.410310305

keywords:

subject

Has Abstract

pub_date

1992-03-01 00:00:00

pages

256-61

issue

3

eissn

0364-5134

issn

1531-8249

journal_volume

31

pub_type

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