7-chlorotetrazolo[5,1-c]benzo[1,2,4]triazine (CTBT) is an antifungal agent that induces oxidative stress and enhances the activity of other antifungals with different modes of action. A genome-wide screening of Saccharomyces cerevisiae genomic library in the high-copy-number plasmid revealed three genes, YAP1, PDE2, and STB3, which increased the CTBT tolerance of the parental strain. The YAP1 gene is known to activate many genes in response to oxidants. The PDE2 and STB3 genes encode the high-affinity cAMP phosphodiesterase and the transcription factor recognizing the ribosomal RNA processing element in promoter sequences, respectively. The protective effects of their overexpression against CTBT toxicity was observed in the absence of certain proteins involved in stress responses, cell wall integrity signaling, and chromatin remodeling. The enhanced CTBT tolerance of the YAP1, PDE2, and STB3 transformants was a consequence of their high antioxidant enzyme activities at the beginning of CTBT treatment in comparison with that of the parental strain, for that they inactivated the CTBT-induced reactive oxygen species. These results point to the complex interplay among the oxidant sensing, cAMP-protein kinase A signaling, and transcription reprogramming of yeast cells, leading to their better adaptation to the stress imposed by CTBT.
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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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