Intragenic mutations were isolated that suppressed the dominant-lethal phenotype of the YPT1ile121 mutant gene in a temperature-dependent fashion. Among different amino acid substitutions resulting from single point mutations, two, Ala161----Val (A161V) and Met165----Ile (M165I), restored the function of the YPT1ile121 mutant protein. Mutants expressing the YPT1ile121/val161 allele (ypt1ts) only, grew normally at temperatures up to 30 degrees C but were arrested at 37 degrees C. At the restrictive temperature, ypt1ts mutants accumulated ER membranes, small vesicles, and unprocessed invertase, and they exhibited cytoskeletal defects and an enhanced 45Ca2+ uptake. Similar alterations were seen in YPT1-depleted cells. The ypt1ts mutant cells could be rescued from growth arrest by increasing extracellular Ca2+, and, even at the permissive temperature, they displayed increased trifluoperazine sensitivity.
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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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