The yeast plasma membrane H(+)-ATPase generates a membrane electrochemical gradient which is required for the secondary uptake of nutrients. Although the ATPase has previously been shown to be post-translationally regulated in response to the availability of glucose, there has been no evidence to date for transcriptional regulation of the ATPase gene (PMA1). In this work, we have examined the pool of newly synthesized ATPase that accumulates in secretory vesicles en route to the cell surface in the temperature-sensitive secretory mutant sec6-4, and have observed changes in the level of ATPase polypeptide as a function of the glucose concentration in the growth medium. In parallel, there were rapid and reversible changes in the levels of ATPase mRNA. Finally, when cells were grown on a variety of carbon sources, the amount of ATPase polypeptide was proportional to the specific growth rate, suggesting that PMA1 expression is adjusted according to the metabolic state of the cell. These results complement the findings of Capieaux et al. (Capieaux, E., Vignais, M.-L., Sentenac, A. and Goffeau, A. (1989). J. Biol. Chem. 264, 7437-7446), who show that the transcriptional factor TUF/RAP1 binds to upstream activating sequences in the PMA1 gene. Taken together, the results suggest a model in which transcriptional regulation of the ATPase gene by glucose is mediated by TUF/RAP1.
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Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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Site | Modification | Modifier | Source | Reference |
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Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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