Positive and negative regulatory elements control the expression of the UGA4 gene coding for the inducible 4-aminobutyric-acid-specific permease in Saccharomyces cerevisiae

In Saccharomyces cerevisiae, the pathway of 4‐aminobutyric acid catabolism, for use as a nitrogen source, involves a specific permease (encoded by the UGA4 gene) and two enzymes (encoded by the UGA1 and UGA2 genes, respectively). The synthesis of these proteins is induced by 4‐aminobutyrate. It also...

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