The elongating, hyperphosphorylated form of RNA polymerase II is associated with the Elongator complex, which has the histone acetyltransferase (HAT) Elp3 as a subunit. Here we show that, in contrast to the isolated Elp3 subunit, the activity of intact Elongator complex is directed specifically toward the amino-terminal tails of histone H3 and H4, and that Elongator can acetylate both core histones and nucleosomal substrates. The predominant acetylation sites are lysine-14 of histone H3 and lysine-8 of histone H4. The three smallest Elongator subunits--Elp4, Elp5, and Elp6--are required for HAT activity, and Elongator binds to both naked and nucleosomal DNA. By using chromatin immunoprecipitation, we show that the levels of multiply acetylated histone H3 and H4 in chromatin are decreased in vivo in yeast cells lacking ELP3.
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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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