Wild-type yeast Saccharomyces cerevisiae are surprisingly resistant to a wide range of drugs and agents. We had previously isolated novobiocin-sensitive mutants to aid the study of the intracellular target for this drug. Characterization of one of these mutants, mds1, revealed that it was sensitive not only to novobiocin but also to a wide range of drugs. The nature of this multiple drug-sensitive phenotype was shown to be different from that of previously isolated multiple drug-sensitive mutants. We have shown that the multiple drug-sensitivity of mds1 is due to mutations within the gene SAC1 and have identified a variety of mutations within the gene from the Mds1 strain. SAC1 encodes a protein which has been previously implicated in the correct function of the actin cytoskeleton, in inositol metabolism, in ATP transport in the endoplasmic reticulum and in Sec14p (PI-TP) function. We have shown that multiple drug-sensitivity is a new phenotype seen in some, but not all, of the previously characterized sac1 mutants. Based on our findings, we propose a mechanism by which Sac1p could affect drug resistance and also mediate other effects on cell growth.
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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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