Mutants of Saccharomyces cerevisiae having the genotypes fas1 (fatty acid synthetase minus) and fas1, ole1 (fatty acid synthetase and fatty acid desaturase minus) were found to undergo logarithmic death when deprived of required fatty acids, whereas ole1 strains did not. During the first 2 to 3 h of fatty acid starvation, macromolecular synthesis occurred at apparently normal rates, although cell division stopped by the end of the 1st h. Cell death commenced at approximately the 2nd to the 3rd h, and within 24 h, depending upon conditions, 2 to 4 log orders of death had occurred. The loss of viability was accelerated by the addition of detergent, but could be largely prevented by the interruption of protein synthesis, either by amino acid starvation or by the use of cycloheximide. The possible significance of this phenomenon in terms of membrane biosynthesis is discussed.
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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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