During meiosis, a transient DNA double-strand break (DSB) occurs in the promoter region (positions -200/-185) of the Saccharomyces cerevisiae ARG4 gene and is a likely intermediate in the initiation of meiotic gene conversion events in this region. We report here a functional analysis of the ARG4 DSB based on the study of various deletions in this chromosomal region. We have identified several cis-acting elements located within the -465/+3 region of the ARG4 promoter that control the formation of this DSB. The -465/-317 region includes a transcription terminator and is necessary for a normal amount of ARG4 DSB, but not for its positioning. The -316/-140 region can be replaced by an unrelated DNA sequence where a meiotic DSB then occurs, suggesting that the site of DSB is not sequence-specific, but is positioned at a fixed distance from the adjacent -139/+3 region. Also, in all strains constructed, the amount of meiotic DSB is correlated with the frequency of gene conversion in ARG4, which provides a strong argument for the initiation of gene conversion by a DSB in this region of the yeast genome.
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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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