Novel sequence variants of multi-drug resistance genes, MDR1 and MRP1, and recombinant cells expressing MRP1 and MDR1 for assessment of drug penetration and disposition

摘要

Provided are compositions relating to novel MDR1 polymorphisms, including nucleic acids, polypeptides, and recombinant cells, as well as methods for detection of MDR1 polymorphisms in biological samples and elucidation of the influence of MDR1 polymorphisms on MDR1 protein function. Also provided are a rat MRP1 cDNA and protein, stable cell lines expressing the rat MRP1 protein, and methods of assessing drug penetration or disposition in a cell line expressing a recombinant mammalian MRP1 or MDR1 protein, or a homolog thereof.