The yeast homolog of the mammalian RNA polymerase II general transcription factor TFIIA has been identified by complementation of a mammalian in vitro transcription system depleted for TFIIA. Like the mammalian factor, the yeast protein does not bind DNA, alters the size of the TFIID DNase I footprint at the adenovirus major late promoter, and forms specific TFIIA-TFIID-DNA complexes which are stable during electrophoresis in native acrylamide gels. The partially purified yeast factor was used to investigate its effect on the binding of TFIID to the major late promoter. Contrary to earlier models, we find that TFIIA does not significantly change the affinity or kinetics of TFIID binding, suggesting that it acts by altering the conformation of TFIID and/or by serving as a bridge between TFIID and the other general transcription factors.
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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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