The Mre11 complex (in Saccharomyces cerevisiae: Mre11, Rad50 and Xrs2) influences multiple facets of chromosome break metabolism. A conserved feature of the Mre11 complex is a zinc-coordinating motif in Rad50 called the Rad50 hook. We established a diploid yeast strain, rad50(hook), in which Rad50 is encoded in halves, one from each of the two RAD50 alleles, with the residues constituting the hook deleted. In all respects, rad50(hook) phenocopies complete Rad50 deficiency. Replacing the hook domain with a ligand-inducible FKBP dimerization cassette partially mitigated all phenotypes in a ligand-dependent manner. The data indicate that the Rad50 hook is critical for Mre11 complex-dependent DNA repair, telomere maintenance and meiotic double-strand break formation. Sister chromatid cohesion was unaffected by Rad50 deficiency, suggesting that molecular bridging required for recombinational DNA repair is qualitatively distinct from cohesin-mediated sister chromatid cohesion.
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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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