In mammalian cells, the Ku heterodimer is involved in DNA double-strand-break recognition and repair. We have established in yeast a connection between Ku activity and DNA double-strand-break damage repair, and a connection between Ku activity and commitment to DNA replication. We generated double-stranded DNA breaks in yeast cells in vivo by expressing a restriction endonuclease and have shown that yeast mutants lacking Ku p70 activity died while isogenic wild-type cells did not. Moreover, we have discovered that DNA damage occurs spontaneously during normal yeast mitotic growth, and that Ku functions in repair of this damage. We also observed that mitotically growing Ku p70 mutants have an anomalously high DNA content, suggesting a role for Ku in regulation of DNA synthesis. Finally, we present evidence that Ku p70 function is conserved between yeast, Drosophila, and humans.
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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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