Eukaryotic chromatin is regulated by chromatin factors such as histone modification enzymes, chromatin remodeling complexes and histone chaperones in a variety of DNA-dependent reactions. Among these reactions, transcription in the chromatin context is well studied. On the other hand, how other DNA-dependent reactions, including postreplicative homologous recombination, are regulated in the chromatin context remains elusive. Here, histone H3 Lys56 acetylation, mediated by the histone acetyltransferase Rtt109 and the histone chaperone Cia1/Asf1, is shown to be required for postreplicative sister chromatid recombination. This recombination did not occur in the cia1/asf1-V94R mutant, which lacks histone binding and histone chaperone activities and which cannot promote the histone acetyltransferase activity of Rtt109. A defect in another histone chaperone, CAF-1, led to an increase in acetylated H3-K56 (H3-K56-Ac)-dependent postreplicative recombination. Some DNA lesions recognized by the putative ubiquitin ligase complex Rtt101-Mms1-Mms22, which is reported to act downstream of the H3-K56-Ac signaling pathway, seem to be increased in CAF-1 defective cells. Taken together, these data provide the framework for a postreplicative recombination mechanism controlled by histone modifiers and histone chaperones in multiple ways.
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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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