Abstract
Recently, we have provided evidence that the ABC-transporter MDR1 P-glycoprotein translocates analogs of various lipid classes across the apical plasma membrane of polarized LLC-PK1 cells transfected with MDR1 cDNA. Here, we show that expression of the basolateral ABC-transporter MRP1 (the multidrug resistance protein) induced lipid transport to the exoplasmic leaflet
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