Three groups of fungicides (phenylpyrroles, dicarboximides, aromatic hydrocarbons) are effective against filamentous fungi. The target of these fungicides is the osmotic stress signal transduction pathway, which is dependent on the Os-1 family of two-component histidine kinases. These fungicides usually have no fungicidal effect on the yeast Saccharomyces cerevisiae. In this report, we found that expression of Hik1, an Os-1 orthologue from rice blast fungus, can confer fungicide-sensitivity to yeast. This requires both the histidine kinase and the response regulator domains of Hik1. Analysis of yeast mutants indicated that this sensitivity is Hog1- and Ssk1-dependent. In addition, our studies revealed an interaction between Hik1 and Ypd1. These observations suggest that Hik1 is a direct target of the fungicides or is a mediator of fungicide action and that the fungicidal effect is transmitted to the Hog1 pathway via Ypd1.
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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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