when felcs were incubated for short periods with 32pi before cell fractionation , the lipid-bound radioactivity was almost exclusively present in phosphatidylinositol-4-phosphate ( dpi ) and phosphatidylinositol-4,5-bisphosphate ( tpi ) , and its distribution closely matched that of the plasma membrane markers .
C0007634
felcs
C0007603
plasma membrane