Prion proteins carrying pathogenic mutations are resistant to phospholipase cleavage of their glycolipid anchors.

Abstract excerpt

Familial prion diseases are linked to mutations in the gene encoding PrP, a protein of unknown function that is attached to the plasma membrane of neurons and several other cell types by a phosphatidylinositol-containing, glycolipid anchor. We have previously found that PrP molecules carrying disease-associated mutations display several biochemical attributes of PrPSc, the pathogenic isoform of PrP, when...

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