The crystal structure of the yeast TFIIA/TBP/TATA promoter complex was solved to 3 angstrom resolution by double-edge multiple wavelength anomalous diffraction from two different species of anomalous scattering elements in the same crystal. The large and small subunits of TFIIA associate intimately to form both domains of a two-domain folding pattern. TFIIA binds as a heterodimer to the side of the TBP/TATA complex opposite to the side that binds TFIIB and does not alter the TBP/DNA interaction. The six-stranded beta-sandwich domain interacts with the amino-terminal end of TBP through a stereospecific parallel beta-strand interface and with the backbone of the TATA box and the 5'-flanking B-DNA segment. The four-helix-bundle domain projects away from the TBP/TATA complex, thereby presenting a substantial surface for further protein-protein interactions.
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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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