The SWI-SNF and SAGA complexes possess ATP-dependent nucleosome remodelling activity and histone acetyltransferase (HAT) activity, respectively. Mutations that eliminate the ATPase activity of the SWI-SNF complex, or the HAT activity of SAGA, abolish proper chromatin remodelling at the PHO8 promoter in vivo. These effects are mechanistically distinct, since the absence of SWI-SNF freezes chromatin in the repressed state, while the absence of Gcn5 permits a localized perturbation of chromatin structure immediately adjacent to the upstream transactivator binding site. However, this remodelling is not propagated to the proximal promoter, and no activation is observed under all conditions. Furthermore, Pho4 is bound to the PHO8 promoter in the absence of Snf2 or Gcn5, confirming a role for SWI-SNF and SAGA in chromatin remodelling independent of activator binding. These data provide new insights into the roles of the SWI-SNF and SAGA complexes in chromatin remodelling in vivo.
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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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