Plasma membrane transporters and channels involved in hepatobiliary function

CellsMembraneProteinGeneSubstrates
HepatocytesBasolateralNTCPSLC10A1Bile acids
OATP1B1SLCO1B1Bile acids, organic anions
OATP1B3SLCO1B3Bile acids, organic anions
MRP3ABCC3Bile acids, organic anions
MRP4ABCC4Bile acids, organic anions
NBC4SLC4A5Na+/HCO3symporter
NHE1SLC9A1Na+/H+ antiporter
SK2KCNN2K+ channel
BSCSLC12A2Na+/Cl symporter
AQP9AQP9Water channel
HepatocytesCanalicularBSEPABCB11Bile acids
MRP2ABCC2Organic anions
MDR1ABCB1Several
BCRPABCG2Bile acids, steroids
MDR3ABCB4Phosphatidyl choline
FIC1ATP8B1Phosphatidyl serine
ABCG5/G8ABCG5/G8Cholesterol
NHE3SLC9A3Na+/H+ antiporter
AQP8AQP8Water channel
CholangiocytesBasolateralOSTα/βSLC51A/BBile acids, organic anions
NHE1SLC9A1Na+/H+ antiporter
NDCBESLC4A8Cl/HCO3 antiporter
SK2KCNN2K+ channel
BSCSLC12A2Na+/Cl symporter
MRP3ABCC3Bile acids, organic anions
MRP4ABCC4Bile acids, organic anions
AQP4AQP4Water channel
CholangiocytesApicalASBTSLC10A2Bile acids
AE2SLC4A2Cl/HCO3 antiporter
CFTRABCC7Cl channel
NBC4SLC4A5Na+/HCO3 symporter
AQP1AQP1Water channel

BCRP: breast cancer resistance protein; HCO3: bicarbonate; KCNN2: potassium calcium-activated channel subfamily N member 2