Specific transcription initiation by RNA polymerase II at eukaryotic protein-coding genes involves the cooperative assembly at the core promoter of more than 40 distinct proteins--with a total mass of over 2 MDa--including RNA polymerase II itself and general/basal transcription initiation factors, to form a stable pre-initiation complex (PIC). In vivo, PIC assembly is a major point of regulation by sequence-specific transcription regulators (activators and repressors) and is hindered by the packaging of promoter DNA into nucleosomes and higher order chromatin structures. Genetic and biochemical studies have recently identified a variety of transcription cofactors/co-regulators (coactivators and corepressors) that interact with sequence-specific regulators and/or various components of the general/basal transcription machinery and are essential for regulated transcription. An emerging view from these studies is that regulators must target two types of transcription cofactors: chromatin-modifying/remodeling cofactors and general cofactors that associate with and/or influence the activities of components of the general/basal transcription machinery. The recent biochemical identification and characterization of many different chromatin-modifying and general transcription cofactors has revealed their often complex multi-subunit nature and a previously unsuspected level of structural and functional redundancy. Another emerging theme is the multi-functional nature of chromatin-modifying cofactor complexes that appear to couple gene-specific transcription to other cellular processes.
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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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