Telomere length is maintained in most eukaryotes by the action of a specialized enzyme, the telomerase. However, the complexity of mechanisms regulating telomeric DNA length as well as the heterogeneity in length of each telomere in a population of cells has made it very difficult to understand how telomerase is regulated in vivo. Here, we describe a method developed in Saccharomyces cerevisiae to monitor the addition of telomeric sequences to a single newly generated telomere in vivo. The primary strain consists of a HO endonuclease cleavage site that is placed directly adjacent to an 81-base-pair stretch of telomeric DNA inserted into the ADH4 locus of chromosome VII. Upon cleavage by HO, the de novo DNA end is rapidly healed by the telomerase enzyme and the analysis of this process allows to gain a mechanistic understanding of how telomerase action is regulated in the cell.
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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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