| Literature DB >> 3084469 |
A T Hoogeveen, A J Reuser, M Kroos, H Galjaard.
Abstract
Cultured fibroblasts from different variants of GM1-gangliosidosis synthesize normal amounts of 88-kDa beta-galactosidase precursor. Yet the amount of the mature 64-kDa form is reduced to 5-15% of normal values. In this communication it is shown that the mutation in the infantile and adult form of GM1-gangliosidosis interferes with the phosphorylation of precursor beta-galactosidase. As a result the precursor is secreted instead of being compartmentalized into the lysosomes and further processed. The impaired phosphorylation might be due to conformational changes of the precursor molecule.Entities:
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Year: 1986 PMID: 3084469
Source DB: PubMed Journal: J Biol Chem ISSN: 0021-9258 Impact factor: 5.157