DNA lesions can stall or block high-fidelity polymerases, thus inhibiting replication. To bypass such lesions, low-fidelity translesion synthesis (TLS) polymerases can be used to insert a nucleotide across from the lesion or extend from a lesion:base mispair. When DNA repair is compromised in Saccharomyces cerevisiae, spontaneous DNA lesions can lead to a novel mutational event in which a frameshift is accompanied by one or more base pair substitutions. These "complex frameshifts" are dependent upon the TLS polymerase Pol zeta, and provide a mutational signature for mutagenic Pol zeta-dependent activity. In the current study, we have found that a specific subset of the Pol zeta-dependent mutational events requires oxidative metabolism. These results suggest that translesion bypass of spontaneously oxidized DNA bases can be a significant source of mutagenesis in repair compromised cells.
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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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