During DNA replication, the advance of replication forks is tightly connected with chromatin assembly, a process that can be impaired by the partial depletion of histone H4 leading to recombinogenic DNA damage. Here, we show that the partial depletion of H4 is rapidly followed by the collapse of unperturbed and stalled replication forks, even though the S-phase checkpoints remain functional. This collapse is characterized by a reduction in the amount of replication intermediates, but an increase in single Ys relative to bubbles, defects in the integrity of the replisome and an accumulation of DNA double-strand breaks. This collapse is also associated with an accumulation of Rad52-dependent X-shaped molecules. Consistently, a Rad52-dependent--although Rad51-independent--mechanism is able to rescue these broken replication forks. Our findings reveal that correct nucleosome deposition is required for replication fork stability, and provide molecular evidence for homologous recombination as an efficient mechanism of replication fork restart.
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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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