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Genetic aspects of carbon catabolite repression of the STA2 glucoamylase gene in Saccharomyces cerevisiae.

N. N. Kartasheva, Sergei Kuchin, S. V. Benevolensky

Open publisher page 22 citations

Abstract

Three regulatory genes, known to be required for glucose repression/derepression of some genes in Saccharomyces cerevisiae, were disrupted to study their effects on the carbon-source regulation of the STA2 glucoamylase gene expression. Using a STA2-lacZ fusion it was found that: (1) the MIG1 gene is dispensable for the repression of the STA2 gene; (2) there are two components in the carbon-source repression of STA2: HXK2-dependent and HXK2-independent; and (3) the HAP2 gene seems to be involved in repression rather than activation of the STA2 expression.

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What this paper is about

Three regulatory genes, known to be required for glucose repression/derepression of some genes in Saccharomyces cerevisiae, were disrupted to study their effects on the carbon-source regulation of the STA2 glucoamylase gene expression. Using a STA2-lacZ fusion it was found that: (1) the MIG1 gene is dispensable for the repression of the STA2 gene; (2) there are two components in the carbon-source repression of STA2: HXK2-dependent and HXK2-independent; and (3) the HAP2 gene seems to be involved in repression rather than activation of the STA2 expression.

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OpenAlex reports 22 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Three regulatory genes, known to be required for glucose repression/derepression of some genes in Saccharomyces cerevisiae, were disrupted to study their effects on the carbon-source regulation of the STA2 glucoamylase gene expression. Using a STA2-lacZ fusion it was found that: (1) the MIG1 gene is dispensable for the repression of the STA2 gene; (2) there are two components in the carbon-source repression of STA2: HXK2-dependent and HXK2-independent; and (3) the HAP2 gene seems to be involved in repression rather than activation of the STA2 expression.

Key concepts: Derepression, Catabolite repression, Psychological repression, Biology, Fed-batch culture, Saccharomyces cerevisiae, Gene, Regulation of gene expression

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