We investigated the dynamics of histone-DNA interactions in yeast by using inducible forms of epitope-tagged histones H2B and H3. Chromatin assembly of newly synthesized histones was assessed by chromatin immunoprecipitation in G1-arrested cells to prevent replication-coupled histone incorporation. We find that while histone deposition within a subtelomeric region is strictly linked to DNA replication, histone H2B is continuously incorporated at the promoter and coding regions of both transcriptionally active and inactive loci. In contrast, incorporation of histone H3 occurs only at active genes, being predominant at the promoter and showing a dynamics along the gene that inversely correlates with the average nucleosomal density. Similar results were obtained with N-terminally truncated H2B and H3 variants. We infer that replication-independent incorporation of H2B and H3 are distinct events, each occurring independently of the histone tail, and that nucleosome loss at active promoters reflects a dynamic equilibrium between histone deposition and dissociation.
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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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