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  • Title: Plasmodium falciparum and Plasmodium chabaudi: characterization of glycosylphosphatidylinositol-degrading activities.
    Author: Braun-Breton C, Blisnick T, Barbot P, Bülow R, Pereira da Silva L, Langsley G.
    Journal: Exp Parasitol; 1992 Jun; 74(4):452-62. PubMed ID: 1317298.
    Abstract:
    Merozoites of malaria parasites have a membrane-bound serine protease whose solubilization and subsequent activity depend on a parasite-derived glycosylphosphatidylinositol-phospholipase C (GPI-PLC). The GPI-degrading activities from both Plasmodium falciparum and Plasmodium chabaudi have been characterized and partially purified by phenylboronate chromatography. They are membrane-bound, developmentally regulated, calcium-independent enzymes and as such they resemble GPI-PLC of Trypanosoma brucei. Furthermore, a T. brucei GPI-PLC-specific monoclonal antibody (mAT3) immunoprecipitates the plasmodial GPI-degrading activity. Thin-layer chromatography is suggestive of two activities: a GPI-PLC and a phospholipase A.
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