Conditional or temperature-sensitive (TS) alleles represent useful tools with which to investigate gene function. Indeed, much of our understanding of yeast has relied on temperature-sensitive mutations which, when available, also provide important insights into other model systems. However, the rarity of temperature-sensitive alleles and difficulty in identifying them has limited their use. Here we describe a system to generate temperature-sensitive alleles based on conditionally active inteins. We have identified temperature-sensitive splicing variants of the yeast Saccharomyces cerevisiae vacuolar ATPase subunit (VMA) intein inserted within Gal4 and transferred these into Gal80. We show that Gal80-intein(TS) is able to efficiently provide temporal regulation of the Gal4/upstream activation sequence (UAS) system in a temperature-dependent manner in Drosophila melanogaster. Given the minimal host requirements necessary for temperature-sensitive intein splicing, this technique has the potential to allow the generation and use of conditionally active inteins in multiple host proteins and model systems, thereby widening the use of temperature-sensitive alleles for functional protein analysis.
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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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| Evidence ID | Analyze ID | File | Description |
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