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Sphingolipids are considered to play a key role in protein sorting and membrane trafficking. In melanocytic cells, sorting of lysosomal and melanosomal proteins requires the sphingolipid glucosylceramide (GlcCer). This sorting information is located in the lumenal domain of melanosomal proteins. We found that two processes dependent on lumenal pH, protein sialylation and lysosomal acid lipase (LAL)...
Glycosphingolipids, a family of heterogeneous lipids with biophysical properties conserved from fungi to mammals, are key components of cellular membranes. Because of their tightly packed backbone, they have the ability to associate with other sphingolipids and cholesterol to form microdomains called lipid rafts, with which a variety of proteins associate. These microdomains are thought to originate...
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