DNA replication initiates at chromosomal positions called replication origins. This review will focus on the activity, regulation and roles of replication origins in Saccharomyces cerevisiae. All eukaryotic cells, including S. cerevisiae, depend on the initiation (activity) of hundreds of replication origins during a single cell cycle for the duplication of their genomes. However, not all origins are identical. For example, there is a temporal order to origin activation with some origins firing early during the S-phase and some origins firing later. Recent studies provide evidence that posttranslational chromatin modifications, heterochromatin-binding proteins and nucleosome positioning can control the efficiency and/or timing of chromosomal origin activity in yeast. Many more origins exist than are necessary for efficient replication. The availability of excess replication origins leaves individual origins free to evolve distinct forms of regulation and/or roles in chromosomes beyond their fundamental role in DNA synthesis. We propose that some origins have acquired roles in controlling chromatin structure and/or gene expression. These roles are not linked obligatorily to replication origin activity per se, but instead exploit multi-subunit replication proteins with the potential to form context-dependent protein-protein interactions.
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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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