While the majority of the ribosomal RNA structure is conserved in the three major domains of life--archaea, bacteria, and eukaryotes, specific regions of the rRNA structure are unique to at least one of these three primary forms of life. In particular, the comparative secondary structure for the eukaryotic SSU rRNA contains several regions that are different from the analogous regions in the bacteria. Our detailed analysis of two recently determined eukaryotic 40S ribosomal crystal structures, Tetrahymena thermophila and Saccharomyces cerevisiae, and the comparison of these results with the bacterial Thermus thermophilus 30S ribosomal crystal structure: (1) revealed that the vast majority of the comparative structure model for the eukaryotic SSU rRNA is substantiated, including the secondary structure that is similar to both bacteria and archaea as well as specific for the eukaryotes, (2) resolved the secondary structure for regions of the eukaryotic SSU rRNA that were not determined with comparative methods, (3) identified eukaryotic helices that are equivalent to the bacterial helices in several of the hypervariable regions, (4) revealed that, while the coaxially stacked compound helix in the 540 region in the central domain maintains the constant length of 10 base pairs, its two constituent helices contain 5+5 bp rather than the 6+4 bp predicted with comparative analysis of archaeal and eukaryotic SSU rRNAs.
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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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Evidence ID | Analyze ID | File | Description |
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