Nucleotide excision repair (NER) removes a variety of DNA lesions. Using a yeast cell-free repair system, we have analyzed the repair synthesis step of NER. NER was proficient in yeast mutant cell-free extracts lacking DNA polymerases (Pol) beta, zeta or eta. Base excision repair was also proficient without Polbeta. Repair synthesis of NER was not affected by thermal inactivation of the temperature-sensitive mutant Polalpha (pol1-17), but was reduced after thermal inactivation of the temperature-sensitive mutant Poldelta (pol3-1) or Polvarepsilon (pol2-18). Residual repair synthesis was observed in pol3-1 and pol2-18 mutant extracts, suggesting a repair deficiency rather than a complete repair defect. Deficient NER in pol3-1 and pol2-18 mutant extracts was specifically complemented by purified yeast Poldelta and Polvarepsilon, respectively. Deleting the polymerase catalytic domain of Polvarepsilon (pol2-16) also led to a deficient repair synthesis during NER, which was complemented by purified yeast Polvarepsilon, but not by purified yeast Poleta. These results suggest that efficient repair synthesis of yeast NER requires both Poldelta and Polvarepsilon in vitro, and that the low fidelity Poleta is not accessible to repair synthesis during NER.
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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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