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DISRUPTION OF THE SACCHAROMYCES CEREVISIAE GENE FOR NADPH-CYTOCHROME P450-REDUCTASE CAUSES INCREASED SENSITIVITY TO KETOCONAZOLE
Citation:
Sutter, T. R. AND J. C. Loper. DISRUPTION OF THE SACCHAROMYCES CEREVISIAE GENE FOR NADPH-CYTOCHROME P450-REDUCTASE CAUSES INCREASED SENSITIVITY TO KETOCONAZOLE. 10.1016/S0006-291X(8, Baumeister, et al. (ed.), BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS. Academic Press Incorporated, Orlando, FL, 160(3):1257-1266, (1989).
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Description:
Strains of Saccharomyces cerevisiae deleted in the NADPH-cytochrome P450 reductase gene by transplacement are 200-fold more sensitive to ketoconazole, an inhibitor of the cytochrome P450 lanosterol 14-demethylase. Resistance is restored through complementation by the plasmid-borne wild type gene from either S. cerevisiae or Candida tropicalis. Neither Southern hybridization nor Western immunoblot techniques provided evidence for a second NADPH-cytochrome P450 reductase gene, suggesting that an alternate pathway may provide for the functions of this reductase in S. cerevisiae.