Abstract
Phosphatidylcholine specific exchange protein from beef liver was found to catalyze the exchange of phosphatidylcholine between intact rat and human erythrocytes and various artificial membranes. Both multilamellar liposomes and single bilayer vesicles prepared from egg lecithin, cholesterol and phosphatidic acid (46:50:4, mol/mol) appeared to be effective phospholipid donor systems. Some
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