Review Article

Molecular Mechanisms for Biliary Phospholipid and Drug Efflux Mediated by ABCB4 and Bile Salts

Figure 3

Formation of mixed micelles of bile salts, phospholipids, and cholesterol in bile canaliculus. ABCB11 mediates the efflux of bile salts into bile. The bile salt monomers are essential for the phospholipid efflux mediated by ABCB4. In the presence of mixed bile salt/phospholipid micelles, ABCG5/ABCG8 heterodimer mediates the efflux of cholesterol.
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