The Snf-Swi complex of the yeast Saccharomyces cerevisiae has been shown to control gene expression by controlling chromatin structure. We have analyzed the promoter of the SUC2 gene, a gene strongly controlled by Snf-Swi, by a high resolution analysis of micrococcal nuclease digests. This analysis suggests that there are at least four nucleosomes positioned over the SUC2 TATA and UAS regions under conditions repressing SUC2 transcription. Under derepressing conditions this entire promoter region is much more sensitive to MNase digestion. Analysis of an snf2 Delta mutant demonstrates that even under derepressing conditions the SUC2 promoter is resistant to MNase digestion. Thus, the Snf-Swi complex appears to control chromatin structure over both the SUC2 TATA and UAS regions. The presence of nucleosomes over both promoter regions may explain the strong requirement of SUC2 for Snf-Swi function.
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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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