Abstract:
:Multiple sulphatase deficiency disease is an unusual autosomal recessive disorder characterised biochemically by a deficiency of several sulphohydrolase activities. The laboratory diagnosis of this combined neurological connective tissue disorder is made on the basis of decreased activities of the lysosomal enzymes, arylsulphatase A and arylsulphatase B and the microsomal enzyme, arylsulphatase C. The primary defect in this multi-enzyme deficiency has not been identified. Using immunological techniques to characterise further the residual activities of arylsulphatases A and B in the multiple sulphatase deficiency disease, we have examined the levels of cross-reaching material (CRM) to arylsulphatases A and B in cultured skin fibroblasts from controls and patients with multiple sulphatase deficiency, metachromatic leukodystrophy (deficiency of only arylsulphatase A activity) and Maroteaux-Lamy syndrome (deficiency of only arylsulphatase B activity). We report here results indicating that arylsulphatases A and B in multiple sulphatase deficiency are reduced in their levels of CRM while retaining a normal activity/CRM ratio. Because the two enzymes are apparently structurally unrelated, these data are consistent with the possibility that their combined deficiencies in this disorder may result from a defect in the coordinated expression of sulphohydrolases.
journal_name
Naturejournal_title
Natureauthors
Fiddler MB,Vine D,Shapira E,Nadler HLdoi
10.1038/282098a0keywords:
subject
Has Abstractpub_date
1979-11-01 00:00:00pages
98-100issue
5734eissn
0028-0836issn
1476-4687journal_volume
282pub_type
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