TFIIA interacts with TFIID via association with TATA binding protein (TBP) and TBP-associated factor 11 (TAF11). We previously identified a mutation in the small subunit of TFIIA (toa2-I27K) that is defective for interaction with TAF11. To further explore the functional link between TFIIA and TAF11, the toa2-I27K allele was utilized in a genetic screen to isolate compensatory mutants in TAF11. Analysis of these compensatory mutants revealed that the interaction between TAF11 and TFIIA involves two distinct regions of TAF11: the highly conserved histone fold domain and the N-terminal region. Cells expressing a TAF11 allele defective for interaction with TFIIA exhibit conditional growth phenotypes and defects in transcription. Moreover, TAF11 imparts changes to both TFIIA-DNA and TBP-DNA contacts in the context of promoter DNA. These alterations appear to enhance the formation and stabilization of the TFIIA-TBP-DNA complex. Taken together, these studies provide essential information regarding the molecular organization of the TAF11-TFIIA interaction and define a mechanistic role for this association in the regulation of gene expression in vivo.
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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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