The Tup1-Ssn6 corepressor regulates the expression of diverse classes of genes in Saccharomyces cerevisiae. Chromatin is an important component of Tup1-Ssn6-mediated repression. Tup1 binds to underacetylated tails of histones H3 and H4, and requires multiple histone deacetylases for the repression. Here we examine if histone methylation, in addition to histone deacetylation, plays a role in Tup1-Ssn6 repression. We found that like other genes, Tup1-Ssn6 target genes exhibit increased levels of histone H3 lysine 4 trimethylation upon activation. However, deletion of individual or multiple histone methyltransferases and other SET-domain containing genes has no apparent effect on Tup1-Ssn6-mediated repression of a number of well-defined targets. Interestingly, we discovered that Ssn6 interacts with Set2. Although deletion of SET2 does not affect Tup1-Ssn6 repression of a number of target genes, Ssn6 may utilize Set2 in specific contexts to regulate gene repression.
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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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