Nuclear pre-mRNA splicing in Saccharomyces cerevisiae, as in higher eukaryotes, occurs in large RNA-protein complexes called spliceosomes. The small nuclear RNA components, U1, U2, U4, U5, and U6, have been extensively studied; however, very little is known about the protein components of yeast spliceosomes. Here we use antibodies against the precursor RNA processing protein PRP8, a protein component of the U5 small nuclear ribonucleoprotein particle, to detect its association with spliceosomes throughout the splicing reaction and in a post-splicing complex containing the excised intron. In addition, an indirect immunological approach has been developed that confirms the presence of precursor RNA processing protein PRP8 in isolated spliceosomes. This method has possible general application for the analysis of ribonucleoprotein particle complexes.
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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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