Exposure to ultraviolet (UV) radiation is the major risk factor for skin cancers. UV induces helix-distorting DNA damage such as cyclobutane pyrimidine dimers (CPDs). If not repaired, CPDs can strongly block DNA and RNA polymerases and cause mutagenesis or cell death. Nucleotide excision repair (NER) is critical for the removal of UV-induced photolesions including CPDs in the cell. Investigating CPD formation and repair across the genome is important for understanding the mechanisms by which these lesions promote somatic mutations in skin cancers. Here we describe a high-throughput, single nucleotide-resolution damage mapping method named CPD sequencing (CPD-seq) for genome-wide analysis of UV-induced CPDs. Protocols for CPD-seq library preparation in yeast and human cells, as well as bioinformatics identification of the CPD damage site, are detailed below.
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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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