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Multidrug resistance-associated protein 2
Multidrug resistance-associated protein 2 (MRP2) also called canalicular multispecific organic anion transporter 1 (cMOAT) or ATP-binding cassette sub-family C member 2 (ABCC2) is a protein that in humans is encoded by the ''ABCC2'' gene.〔〔〔
== Function ==
MRP2 is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). More specifically, this protein is a member of the MRP subfamily, which is involved in multi-drug resistance. This protein is expressed in the canalicular (apical) part of the hepatocyte and functions in biliary transport. Substrates include anticancer drugs such as vinblastine; therefore, this protein appears to contribute to drug resistance in mammalian cells.
MRP2 is also expressed in on the apical membrane of proximal renal tubule endothelial cells where they are involved in the excretion of small organic anions.₳
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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