Saccharomyces cerevisiae strain TIY20, which produces a mammalian high-mannose type N-glycan, exhibits a severe growth defect due to disruption of yeast-specific outer chain mannosyltransferases. We have isolated a more fit strain, YAB103, from TIY20 by the use of a novel mutagenesis technique based on the disparity theory of evolution. To determine why YAB103 lacked the growth defect and the hygromycin B sensitivity of its parent, TIY20, gene expression profiles of YAB103 and TIY20 were analyzed using DNA microarrays. Expression of genes that encode enzymes in the gluconeogenesis pathway and glyoxylate cycle, which produce glucose 6-phophate and its derivatives, was up-regulated in YAB103. Up-regulation of these genes suppressed the drug sensitivity of the TIY20 strain. Furthermore, we found that YAB103 had a thicker cell-wall due to an increase in glucan content. To our knowledge, this is first report linking N-glycosylation to gluconeogenesis and the glyoxylate cycle.
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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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