Meiotic recombination in yeast is initiated by DNA double-strand breaks (DSBs) that occur at preferred sites, distributed along the chromosomes. These DSB sites undergo changes in chromatin structure early in meiosis, but their common features at the level of DNA sequence have not been defined until now. Alignment of 1 kb sequences flanking six well-mapped DSBs has allowed us to define a flexible sequence motif, the CoHR profile, which predicts the great majority of meiotic DSB locations. The 50 bp profile contains a poly(A) tract in its centre and may have several gaps of unrelated sequences over a total length of up to 250 bp. The major exceptions to the correlation between CoHRs and preferred DSB sites are at telomeric regions, where DSBs do not occur. The CoHR sequence may provide the basis for understanding meiosis-induced chromatin changes that enable DSBs to occur at defined chromosomal sites.
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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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