Replicated sister chromatids are held together from their synthesis in S phase to their separation in anaphase. The process of sister chromatid cohesion is essential for the proper segregation of chromosomes in eukaryotic cells. Recent studies in Saccharomyces cerevisiae have advanced our understanding of how sister chromatid cohesion is established, maintained, and dissolved during the cell cycle. Historical observations have suggested that establishment of cohesion is roughly coincident with replication fork passage. Emerging evidence now indicates that replication fork components, such as PCNA, a novel DNA polymerase, Trf4p/Pol sigma (formerly Trf4p/Pol kappa), and a modified clamp-loader complex, actively participate in the process of the cohesion establishment. Here, we review the molecular events in the chromosome cycle with respect to cohesion. Failure of sister chromatid cohesion results in the aneuploidy characteristic of many birth defects and tumors in humans.
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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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