Title : Relation between the turnover number for vinblastine transport and for vinblastine-stimulated ATP hydrolysis by human P-glycoprotein.

Pub. Date : 1997 Aug 22

PMID : 9261121






7 Functional Relationships(s)
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1 Relation between the turnover number for vinblastine transport and for vinblastine-stimulated ATP hydrolysis by human P-glycoprotein. Vinblastine ATP binding cassette subfamily B member 1 Homo sapiens
2 Relation between the turnover number for vinblastine transport and for vinblastine-stimulated ATP hydrolysis by human P-glycoprotein. Vinblastine ATP binding cassette subfamily B member 1 Homo sapiens
3 To estimate relative turnovers for pumping of the drug vinblastine and ATP hydrolysis, we began by measuring the number of P-glycoprotein molecules on the surface of murine NIH3T3 cells expressing the human MDR1 gene. Vinblastine ATP binding cassette subfamily B member 1 Homo sapiens
4 Initial uptake rates of vinblastine +/- verapamil measure the ability of P-glycoprotein to extract vinblastine from the plasma membrane before it enters the cell. Vinblastine ATP binding cassette subfamily B member 1 Homo sapiens
5 Initial uptake rates of vinblastine +/- verapamil measure the ability of P-glycoprotein to extract vinblastine from the plasma membrane before it enters the cell. Vinblastine ATP binding cassette subfamily B member 1 Homo sapiens
6 The vinblastine-stimulated ATPase activity of P-glycoprotein has a turnover number of 3.5 s-1 at 37 degrees C, giving 2.8 molecules of ATP hydrolyzed for every vinblastine molecule transported in a particular direction. Vinblastine ATP binding cassette subfamily B member 1 Homo sapiens
7 The vinblastine-stimulated ATPase activity of P-glycoprotein has a turnover number of 3.5 s-1 at 37 degrees C, giving 2.8 molecules of ATP hydrolyzed for every vinblastine molecule transported in a particular direction. Vinblastine ATP binding cassette subfamily B member 1 Homo sapiens