Multiple regulatory elements control the expression of the yeast ACR1 gene.
The ACR1 gene, encoding a succinate-fumarate transporter, is required by the yeast Saccharomyces cerevisiae for ethanol utilization. Accordingly, gene expression is induced by ethanol and repressed by glucose. Here, we investigated three carbon source response elements present in its promoter region. Specific deletions as well as functional analysis of the elements in a heterologous promoter confirmed their role in transcriptional regulation. Protein binding to carbon source response elements of the ICL1 promoter was competed by all three elements to various extents by the respective ACR1 sequences. In addition, two putative stress response promoter elements present in the ACR1 promoter were investigated in deletion analyses and shown to contribute to gene expression.[1]References
- Multiple regulatory elements control the expression of the yeast ACR1 gene. Redruello, B., Valdes, E., Luz Lopez, M., Rodicio, R. FEBS Lett. (1999) [Pubmed]
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