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The role of ATP-binding cassette (ABC) proteins such as multidrug resistance-associated proteins (MRPs) is critical in drug resistance in cancer cells and in plant detoxification processes. Due to broad substrate spectra, specific modulators of these proteins are still lacking. Sulfonylureas such as glibenclamide are used to treat non-insulin-dependent diabetes since they bind to the sulfonylurea...
Abstract. Despite the completion of the sequencing of the entire genome of Arabidopsis thaliana (L.) Heynh., the exact determination of each single gene and its function remains an open question. This is especially true for multigene families. An approach that combines analysis of genomic structure, expression data and functional genomics to ascertain the role of the members of the multidrug-resistance-related...
Vacuolar sequestration or cellular extrusion of glutathione-conjugated xenobiotics and catabolites by ATP-binding cassette (ABC) transporters is an important detoxification mechanism operating in many species. In this study, we show that the yeast ABC transporter Bpt1p, a paralogue of Ycf1p, acts as an ATP-dependent vacuolar pump for glutathione conjugates. Bpt1p, which is inhibited by vanadate and...
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