Three temperature-sensitive S. cerevisiae RFA1 alleles were found to cause elevated mutation rates. These mutator phenotypes resulted from the accumulation of base substitutions, frameshifts, gross deletions (8 bp-18 kb), and nonreciprocal translocations. A representative rfa1 mutation exhibited a growth defect in conjunction with rad51, rad52, or rad10 mutations, suggesting an accumulation of double-strand breaks. rad10 and rad52 mutations eliminated deletion and translocation formation, whereas a rad51 mutation increased the frequency of these events and revealed a new class of genetic rearrangements--loss of a portion of a chromosome arm combined with telomere addition. The breakpoints of the translocations and deletions were flanked by imperfect direct repeats of 2-20 bp, similar to the breakpoint structures observed at translocations and gross deletions, including LOH events, underlying human cancer and other hereditary diseases.
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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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