We have devised a general screen for isolating conditional lethal mutants defective in synthesis of mature tRNA in Saccharomyces cerevisiae. Using this screen, we have identified several new genes in yeast that are required for production of mature tRNA. These genes most likely encode essential functions, since the mutations we isolated are recessive and cause temperature-sensitive growth. One of the mutants, tpd3, is defective in de novo transcription of 4S RNA at the nonpermissive temperature. A second mutant, tpd1, is specifically defective in excision of intervening sequence from a variety of tRNA species. Finally, two other mutants are defective in production of tRNA from a suppressor tRNA locus, as measured by an in vitro suppression assay. The specific lesion in these strains, though, is not known. These data confirm that the screen does, in fact, yield a broad spectrum of mutants defective in tRNA maturation.
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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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