Hyperosmotic stress represses the transcription of HXT2 and HXT4 genes in Saccharomyces cerevisiae
Language English Country United States Media print
Document type Journal Article
PubMed
10983231
DOI
10.1007/bf02903707
Knihovny.cz E-resources
- MeSH
- Fungal Proteins genetics MeSH
- Transcription, Genetic MeSH
- Genes, Fungal * MeSH
- Glucose metabolism MeSH
- Membrane Proteins genetics MeSH
- Osmotic Pressure MeSH
- Monosaccharide Transport Proteins genetics MeSH
- Glucose Transport Proteins, Facilitative MeSH
- Saccharomyces cerevisiae Proteins * MeSH
- Saccharomyces cerevisiae genetics growth & development metabolism MeSH
- Publication type
- Journal Article MeSH
- Names of Substances
- Fungal Proteins MeSH
- Glucose MeSH
- HXT2 protein, S cerevisiae MeSH Browser
- HXT4 protein, S cerevisiae MeSH Browser
- Membrane Proteins MeSH
- Monosaccharide Transport Proteins MeSH
- Glucose Transport Proteins, Facilitative MeSH
- Saccharomyces cerevisiae Proteins * MeSH
Effects of hyperosmotic stress on the transcriptional regulation of the HXT2 and HXT4 genes of Saccharomyces cerevisiae were investigated under glucose-repressed and -depressed growth conditions. Hyperosmotic stress repressed the transcription of these HXT genes up to 81% depending on growth conditions. Preconditioning of yeast cells for the hyperosmotic stress resulted in a much stronger repression of both HXT genes. The negative effect of hyperosmotic stress was much higher for HXT4 than HXT2. These results also show that hyperosmotic stress interferes with the glucose-dependent transcriptional activation or derepression of HXT2 and HXT4 genes transcription in S. cerevisiae.
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