
Báo cáo Y học: The amyloid precursor protein interacts with neutral lipids Liposomes and monolayer studies
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The amyloid protein precursor (APP) was incorporated into liposomes or phospholipid monolayers. APP insertion into liposomes required neutral lipids, such as L-a-phosphatidylcholine, in the target membrane. It was prevented in vesicles containing L-a-phosphatidylserine. The insertion was enhanced in acidic solutions, suggesting that it is modulated by specific charge/charge interactions. Surfaceactive properties and behaviour of APP were characterized during insertion of the protein in monomolecular films of L-a-phosphatidylcholine, L-a-phosphatidylethanolamine or L-a-phosphatidylserine. ...
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