cAMP represses the transcription of some Saccharomyces cerevisiae genes sensitive to catabolite repression. The effect of cAMP on the expression of FBP1, encoding fructose-1,6-bisphosphatase (FbPase), has been further investigated. In yeast cells shifted to a derepressing medium, synthesis of FbPase was delayed if the strong decrease in intracellular cAMP, which occurs during the shift, was prevented. A similar delay occurred in a RAS2val19 strain, while in a tpk1w strain, with weak protein kinase A activity, induction of FbPase occurred earlier than in a TPK1 strain. In the tpk1w strain, proteins which bind the UAS1 element of FBP1 were present during growth on glucose but they were only weakly operative. Expression of CAT8 and SIP4, encoding proteins which bind the UAS2 element, was blocked by a high concentration of cAMP, but catabolite repression of these genes was not much relieved in a tpk1w strain. We conclude that in S. cerevisiae, as reported for Schizosaccharomyces pombe, control of FBP1 requires both cAMP-dependent and independent pathways; however, the mechanisms operating in the two yeasts are different.
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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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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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