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  • Title: Effects of detergents and choline-containing phospholipids on human spleen glucocerebrosidase.
    Author: Blonder E, Klibansky C, de Vries A.
    Journal: Biochim Biophys Acta; 1976 Apr 22; 431(1):45-53. PubMed ID: 1268244.
    Abstract:
    1. Glucocerebrosidase, extracted from human spleen lysosomal membrane by sodium cholate and recovered in a high speed centrifugation supernatant, aggregated following removal of the detergent. 2. Re-solubilization of the enzymatic activity from the aggregate was achieved by treatment with the non-ionic detergents Triton X-100 and Tween 20. The anionic detergents sodium cholate and sodium taurocholate and the cationic detergents cetyltrimethylammonium bromide and cetylpyridinium chloride were also effective. The solubilizing capacity of the anionic detergents was smaller than that of the nonionic detergents. Quantitative evaluation of the solubilizing capacity of the cationic detergents was not feasible because of their being potent inhibitors of glucocerebrosidase activity. 3. Treatment of the enzyme aggregate with acetone rendered it buffer-soluble. 4. In addition to the above cationic detergents some choline-containing and highly hydrophobic phospholipids were found to inhibit the glucocerebrosidase activity.
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