Homologous recombination (HR) serves a dual role in providing genetic flexibility and in maintaining genome integrity. Little is known about the regulation of HR and other repair pathways in the context of chromatin. We report on a mutant affected in the expression of the Arabidopsis INO80 ortholog of the SWI/SNF ATPase family, which shows a reduction of the HR frequency to 15% of that in wild-type plants. In contrast, sensitivity to genotoxic agents and efficiency of T-DNA integration remain unaffected, suggesting that INO80 is a positive regulator of HR, while not affecting other repair pathways. So far, INO80 function has only been reported in a lower eukaryote. Profiling studies on three ino80 allelic mutants show that INO80 regulates nearly 100 Arabidopsis genes. However, the transcriptional regulation of repair-related genes is unaffected in the mutant. This suggests a dual role for INO80 in transcription and DNA repair by HR.
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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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