We have shown previously that a stretch of four charged residues (16-19) at the histone H4 N-terminus is involved in repression of the yeast silent mating loci. One of these residues, Lys16, is a site for acetylation, which may prevent repression of the silent mating loci. In this paper we ask whether other sequences in histone H4, possibly in conjunction with H3 residues, are required for repression. We find that even in combination, the other seven acetylatable lysines in H3 and H4 do not function in repression. In contrast, we have found that an adjacent relatively uncharged domain (residues 21-29) is required for repression and that single amino acid insertions and deletions in this region are extremely detrimental. We propose that the basic and non-basic domains together form a DNA (or protein) induced amphipathic alpha-helix required in the formation of a repressive chromatin structure.
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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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