Abstract
The translocation of spin-labeled analogues of phosphatidylcholine (4- doxylpentanoyl-PC, SLPC), phosphatidylethanolamine (SL-PE), phosphatidylserine (SL-PS), and sphingomyelin (SL-SM) from the outer to the inner leaflet of the plasma membrane bilayer was investigated in dog kidney MDCK II and human colon Caco-2 cells. Disappearance from the outer leaflet was assayed using back-exchange
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