We expressed normal and activated human cellular Ha-ras cDNAs which encode 21,000-dalton polypeptides (p21s) in Saccharomyces cerevisiae by their insertion into a 2 micron-based replicating plasmid vector under 3-phosphoglycerate kinase promoter control. We found that newly synthesized p21 in S. cerevisiae was produced as a soluble precursor (pro-p21) which matured into a form electrophoretically indistinguishable from the processed form (p21) observed in mammalian cells. Coincident with the processing event was translocation to a membrane component, suggesting a coupling of the two events. Using vectors that direct the synthesis of p21 variants possessing the ability to autophosphorylate in vitro, we found that processing of p21 did not significantly affect this autophosphorylation reaction. In contrast to Escherichia coli, marked phenotypic changes were observed in S. cerevisiae as a consequence of the synthesis of p21, including reduction in growth rate and induction of flocculation. Accompanying these phenotypic alterations was a significant elevation of adenylate cyclase activity.
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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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