Slt11p is a new splicing factor identified on the basis of synthetic lethality with a mutation in the 5' end of U2 snRNA, a region that is involved in intermolecular U2/U6 helix II interaction. Slt11p is required for spliceosome assembly. Our genetic results suggest that Slt11p is involved in the base-pairing interaction of U2/U6 helix II in vivo. We showed that the recombinant protein binds to RNAs with some degree of structural specificity. Slt11p also anneals RNA and binds to the resulting duplexes, which contain two separated helical regions. These RNA structures are reminiscent of U2/U6 helix II, which is formed concomitantly with U4/U6 stem II, and suggest that Slt11p facilitates the cooperative formation of helix II in association with stem II in the spliceosome. We show that Slt11p and Slu7p, a second-step factor, interact with each other both in vivo and in vitro and that the binding of Slu7p to Slt11p impairs the RNA-binding activity of the latter. These results suggest that the function of Slt11p is regulated by Slu7p in the spliceosome.
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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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