We describe a novel approach to characterize the functional domains of a protein in vivo. This involves the use of a custom-built Tn5-based transposon that causes the expression of a target gene as two contiguous polypeptides. When used as a genetic screen to dissect the budding yeast PRP8 gene, this showed that Prp8 protein could be dissected into three distinct pairs of functional polypeptides. Thus, four functional domains can be defined in the 2413-residue Prp8 protein, with boundaries in the regions of amino acids 394-443, 770, and 2170-2179. The central region of the protein was resistant to dissection by this approach, suggesting that it represents one large functional unit. The dissected constructs allowed investigation of factors that associate strongly with the N- or the C-terminal Prp8 protein fragments. Thus, the U5 snRNP protein Snu114p associates with Prp8p in the region 437-770, whereas fragmenting Prp8p at residue 2173 destabilizes its association with Aar2p.
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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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