Summary
The non-metabolizable and toxic glucose analogue 2-deoxy-d-glucose (2-DOG) has been widely employed to screen for regulatory mutants which lack catabolite repression. A number of yeast mutants resistant to 2-DOG have recently been isolated in this laboratory. One such mutant, derived from aSaccharomyces cerevisiae haploid strain, was demonstrated to be derepressed for maltose, galactose and sucrose uptake. Furthermore, kinetic analysis of glucose transport suggested that the high affinity glucose transport system was also derepressed in the mutant strain. In addition, the mutant had an increased intracellular concentration of trehalose relative to the parental strain. These results indicate that the 2-DOG resistant mutant is defective in general glucose repression.
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Novak, S., D'Amore, T., Russell, I. et al. Sugar uptake in a 2-deoxy-d-glucose resistant mutant ofSaccharomyces cerevisiae . Journal of Industrial Microbiology 7, 35–39 (1991). https://doi.org/10.1007/BF01575600
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DOI: https://doi.org/10.1007/BF01575600