Determination of P-Glycoprotein ATPase Activity Using Luciferase
نویسندگان
چکیده
منابع مشابه
Modulation of drug-stimulated ATPase activity of human MDR1/P-glycoprotein by cholesterol.
MDR1 (multidrug resistance 1)/P-glycoprotein is an ATP-driven transporter which excretes a wide variety of structurally unrelated hydrophobic compounds from cells. It is suggested that drugs bind to MDR1 directly from the lipid bilayer and that cholesterol in the bilayer also interacts with MDR1. However, the effects of cholesterol on drug-MDR1 interactions are still unclear. To examine these e...
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P-glycoprotein was purified from multidrug-resistant Chinese hamster ovary CHRB30 cells by a combination of anion exchange and immunoaffinity chromatography. The P-glycoprotein was about 90% pure and had a Vmax for ATP hydrolysis in detergent solution of 321 nmol/min/mg with a Km of 0.94 mM. The ATPase activity was inhibited by low concentrations of vanadate and N-ethylmaleimide, but unaffected...
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ژورنال
عنوان ژورنال: Biological and Pharmaceutical Bulletin
سال: 2006
ISSN: 0918-6158,1347-5215
DOI: 10.1248/bpb.29.560