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MDR1 is an ABC transporter. Describe its mechanism for transporting molecules ac

ID: 88785 • Letter: M

Question

MDR1 is an ABC transporter. Describe its mechanism for transporting molecules across the plasma membrane and the direction of transport. Identify another medically relevant protein in ABC transporter family. What does it transport? MDR1 is an ABC transporter. Describe its mechanism for transporting molecules across the plasma membrane and the direction of transport. Identify another medically relevant protein in ABC transporter family. What does it transport? Identify another medically relevant protein in ABC transporter family. What does it transport?

Explanation / Answer

Answer= mechanism of transport of molecules across the plasma membrane by MDR 1

MDR1 is multidrug resistance protein 1 that pumps many foreign substances out of cells.

it is ATP dependent efflux pump with broad substrate specificity

it is efflux pump of xenobiotic compounds it transports various substrates across the cell membrane out of cell such as Drugs such as colchicine,tacrolimus ,chemotherapeutic agents ,lipids,steroids ,peptides ,bilirubin etc

another relevent protein in ABC transporter family is multidrug resistance protein MRP

MRP 1 ,MRP2 ,MRP3,MRP4,MRP5,MRP6

MRPs transport anticancer drugs

MRP1,2,3&5 are able to transport glutathione conjugates such as dinitrophenyl glutathione