We isolated two yeast mutants that are temperature-sensitive for import of mitochondrial proteins. Each strain contains a single mutation that results in arrest of growth and accumulation of precursor to the beta subunit of the mitochondrial F1-ATPase after incubation at 37 degrees C. These lesions (mas1 and mas2) are nonallelic and recessive. Cells harboring either mutation stop growing only after 2-3 generations at 37 degrees C. Import of the F1 beta subunit at 37 degrees C is more than 250 times slower in mas1 and 15 times slower in mas2 than in wild-type cells. At 23 degrees C, import occurs with similar rates in mutant and wild-type cells. The two mutations also reduce the rate of import of other proteins; however, import of different precursors is affected to different degrees in the two strains. The temperature-sensitive step in import in both mas1 and mas2 occurs before arrival of precursors in the mitochondrial matrix.
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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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