Dimethylsulfoxide (DMSO) is widely used as a solvent or as a carrier when screening for biologic activity of various chemicals, but results need to be interpreted carefully due to its intrinsic toxicity. DMSO has been previously observed to impair the growth of yeast cells defective in calcium movement across cellular membranes and in phosphoinositol pyrophosphate synthases. Here, we set out to investigate the Ca2+-mediated response to DMSO in Saccharomyces cerevisiae. The cell exposure to DMSO was signaled by a two-phase cytosolic Ca2+ wave that was dependent on Mid1, a subunit of the Cch1/Mid1 Ca2+ channel located at the plasma membrane. While the vacuolar Ca2+ channel Trpy1 also contributed by releasing Ca2+ from the vacuole, the immediate cell response to DMSO exposure depended on the external Ca2+ imported into the cell through Cch1/Mid1. A chemogenomic screen previously performed on a collection of yeast knockout mutants identified the two phosphoinositol pyrophosphate synthases Kcs1 and Vip1 as determinants for yeast tolerance to DMSO. Deletion of KCS1 or VIP1 genes suppressed the DMSO-induced Ca2+ response, suggesting that both Ca2+ and phosphoinositol pyrophosphate signaling contribute to cell adaptation under DMSO stress.
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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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