Strains of Saccharomyces cerevisiae that bear the temperature-sensitive mutation rna8-1 are defective in nuclear pre-mRNA splicing at the restrictive temperature (36 degrees C), suggesting that the RNA8 gene encodes a component of the splicing machinery. The RNA8 gene was cloned by complementation of the temperature-sensitive growth defect of an rna8-1 mutant strain. Integrative transformation and gene disruption experiments confirmed the identity of the cloned DNA and demonstrated that the RNA8 gene encodes an essential function. The RNA8 gene was shown to be represented once per S. cerevisiae haploid genome and to encode a low-abundance transcript of approximately 7.4 kilobases. By using antisera raised against beta-galactosidase-RNA8 fusion proteins, the RNA8 gene product was identified in S. cerevisiae cell extracts as a low-abundance protein of approximately 260 kilodaltons. Immunodepletion of the RNA8 protein specifically abolished the activity of S. cerevisiae in vitro splicing extracts, confirming that RNA8 plays an essential role in splicing.
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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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