In Saccharomyces cerevisiae the cAMP-dependent protein kinase A pathway antagonizes the cellular response to stress. It is shown here that the cellular content of Cdc25p, the upstream activator of Ras and adenylyl cyclase, decays upon various stresses such as heat shock and oxidative and ethanol shocks, whereas its phosphorylation level and its localization are unaffected. In parallel with the reduction of Cdc25p, the maximal capacity of the cell to accumulate cAMP decreases when its feedback regulation is abolished. A deletion of CDC25 prevents this decrease. Paradoxically, in wild-type cells, with normal feedback regulation, the level of cAMP, which is much lower, is not reduced but is rather increased upon stress. These observations are consistent with a role of Cdc25p in sensing and transducing stress to downstream targets, either through a cAMP-independent pathway or by large fluctuations in the cAMP content of the cell.
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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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