Previous studies suggested that yeast ribosomal protein L26 was a candidate for the ribosomal subunit interface region. The present study used protein-protein cross-linking to identify neighboring proteins in intact 80S ribosomes of Saccharomyces cerevisiae. To facilitate identification of cross-linked pairs involving L26, 80S ribosomes were first treated with 5-iodoacetamidofluorescein to selectively label L26. Protein cross-links were produced with dithiobis[succinimidyl] propionate or N-succinimidyl-3-[2-pyridyldithio] propionate and analyzed by electrophoresis on two-dimensional diagonal polyacrylamide gels containing SDS. L26 was detected under UV and its cross-linked partner, detectable after staining with Coomassie blue, was located below the diagonal and was coincident with L26 on a single vertical axis. The identity of the partner was determined by its co-migration with 60S and 40S ribosomal protein markers on two-dimensional gels. Two protein pairs involving L26 and 40S subunit proteins were identified. The finding provided experimental evidence to support that L26 is located at the ribosomal subunit interface. A model that incorporates the present findings and the published data on intra-subunit protein pairs is proposed for the yeast 80S ribosome.
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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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