The RNA polymerase III-based two-hybrid system has been developed to detect interactions between proteins such as RNA polymerase II transcription factors and regulators that cannot be studied by the original RNA polymerase II two-hybrid system. This novel method appears to be most useful for a refined analysis of already known protein-protein interactions. However, the application of this system in library screenings has been impaired by the lack of a suitable assay for the selection of the activated pol III reporter gene in yeast. Here, we describe a novel selection assay for the pol III-based two-hybrid system that makes it readily usable for screening expression libraries to search for interacting partners. Our system utilizes a temperature-sensitive (ts) U6 snRNA, which is synthesized by RNA polymerase III from a mutated SNR6 gene in yeast. In this ts strain, interactions between hybrid proteins activate an artificial pol III reporter construct (UASG-SNR6), which controls expression of wild-type U6 snRNA. This wild-type U6 snRNA can suppress the ts phenotype and allow growth at the nonpermissive temperature of 37 degrees C, thus providing a positive selection system for interacting proteins.
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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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