The protein Rad52 is a key player in various types of homologous recombination and is essential to maintenance of genomic integrity. Although evidence indicates that Rad52 is modified by SUMO, the physiological relevance of this sumoylation remains unclear. Here, we identify the conditions under which Rad52 sumoylation is induced, and clarify the role of this modification in homologous recombination. Oligomerization of Rad52 was a prerequisite for sumoylation, and the modification occurred in the cell proceeding S phase being exposed to the DNA-damaging agent methyl methanesulfonate (MMS). Following exposure to MMS, sumoylated Rad52 accumulated in rad51 cells, but not in the recombination-related gene mutants, rad54, rad55, rad59, sgs1, or srs2. The accumulation of sumoylated Rad52 was suppressed in rad51 cells expressing Rad51-K191R, an ATPase-defective protein presumed to be recruited to ssDNA. Although the sumoylation defective mutant rad52-3KR (K10R/K11R/K220R) showed no defect in mating-type switching, which did not lead to Rad52 sumoylation in wild-type cells, the mutant did demonstrate a partial defect in MMS-induced interchromosomal homologous recombination.
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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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