The conserved Mre11 complex (Mre11, Rad50, and Nbs1) plays a role in each aspect of chromosome break metabolism. The complex acts as a break sensor and functions in the activation and propagation of signaling pathways that govern cell cycle checkpoint functions in response to DNA damage. In addition, the Mre11 complex influences recombinational DNA repair through promoting recombination between sister chromatids. The Mre11 complex is required for mammalian cell viability but hypomorphic mutants of Mre11 and Nbs1 have been identified in human genetic instability disorders. These hypomorphic mutations, as well as those identified in yeast, have provided a benchmark for establishing mouse models of Mre11 complex deficiency. In addition to consideration of Mre11 complex functions in human cells and yeast, this review will discuss the characterization of mouse models and insight gleaned from those models regarding the metabolism of chromosome breaks. The current picture of break metabolism supports a central role for the Mre11 complex at the interface of chromosome stability and the regulation of cell growth. Further genetic analysis of the Mre11 complex will be an invaluable tool for dissecting its function on an organismal level and determining its role in the prevention of malignancy.
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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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