when trace amounts of radiolabeled phosphatidylcholine molecules are present in donor vesicles consisting of egg phosphatidylcholine and cholesterol , the transfer of the radiolabeled species depends strongly on their fatty acyl composition : dipalmitoylphosphatidylcholine is transferred at the lowest rate , 1-saturated-2-unsaturated species are transferred faster and the highest rate is observed for dioleoyl phosphatidylcholine .
C1959616
phosphatidylcholine
C0000039
dipalmitoylphosphatidylcholine