Reference: Nogi Y and Fukasawa T (1980) A novel mutation that affects utilization of galactose in Saccharomyces cerevisiae. Curr Genet 2(2):115-20

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Abstract


A novel type of regulatory mutation for galactose metabolism in Saccharomyces cerevisiae is described. The mutation named gal11 was recessive, non-allelic to GAL4, GAL80, GAL2, or GAL3, and unlinked to the gene cluster of GAL1, GAL10, and GAL7. It caused a 'coordinate' reduction of galactokinase, galactose-1-P uridylyl transferase, and UDP-glucose 4-epimerase by a factor of more than 5, rendering the mutant cells galactose-nonfermenting. The effect of the mutation was manifested not only in cells grown on galactose but also in cells constitutively synthesizing the galactose-metabolizing enzymes.

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Journal Article
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Nogi Y, Fukasawa T
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