Cdc13, Stn1 and Ten1 are essential yeast proteins that both protect chromosome termini from unregulated resection and regulate telomere length. Cdc13, which localizes to telomeres through high-affinity binding to telomeric single-stranded DNA, has been extensively characterized, whereas the contribution(s) of the Cdc13-associated Stn1 and Ten1 proteins to telomere function have remained unclear. We show here that Stn1 and Ten1 are DNA-binding proteins with specificity for telomeric DNA substrates. Furthermore, Stn1 and Ten1 show similarities to Rpa2 and Rpa3, subunits of the heterotrimeric replication protein A (RPA) complex, which is the major single-stranded DNA-binding activity in eukaryotic cells. We propose that Cdc13, Stn1 and Ten1 function as a telomere-specific RPA-like complex. Identification of an RPA-like complex that is targeted to a specific region of the genome suggests that multiple RPA-like complexes have evolved, each making individual contributions to genomic stability.
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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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Evidence ID | Analyze ID | File | Description |
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