The DNA-binding protein Ku plays a critical role in a variety of cellular processes, including the repair of double-stranded DNA breaks and V(D)J recombination. Paradoxically, while Ku is required for double-stranded break repair by non-homologous end-joining, in many organisms, Ku is also associated with telomeres. Although telomeres are naturally occurring double-stranded DNA breaks, one of their first identified functions is to protect chromosomes from end-to-end fusions, a process that is promoted by non-homologous end-joining. While located at telomeres, Ku appears to play several important roles, including: (1) regulating telomere addition, (2) protecting telomeres from recombination and nucleolytic degradation, (3) promoting transcriptional silencing of telomere-proximal genes and (4) nuclear positioning of telomeres. Here, we review the role of Ku at telomeres in the model organism, Saccharomyces cerevisiae and compare and contrast it to the roles of Ku at telomeres in other organisms.
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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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