Table 2.

Bile acid transporters

Name	Distribution	Function	Note	References
NTCP	Liver, basolateral	Uptake of bile acids into hepatocytes	Na+-dependent	[67]
OATP	Liver, basolateral	Uptake of bile acids into hepatocytes	Na+-independent	[102]
FABP	Liver, cytosolic	Shuttle bile acids from basolateral to apical side	For hydrophilic bile acids	[68]
MDR1/3/4	Liver, basolateral	Efflux of bile acids back to blood	Relieve liver load	[72]
BSEP	Liver, apical	Efflux of bile acids from hepatocytes	High specificity	[67, 71]
MDR2	Liver, apical	Efflux of bile acids from hepatocytes	Divalent substrates	[64]
ASBT	Ileum, apical	Uptake of bile acids into enterocytes	Na+-independent,	[58]
IBABP	Ileum, cytosolic	Shuttle bile acids from apical to basolateral side	Unclear mechanism	[94]
OSTα/β	Ileum, basolateral	Efflux of bile acids from enterocytes	Facilitated diffusion	[100]