Nuclear Overhauser effect (NOE) combined with semispecific deuteration provides a general strategy for identification of exchangeable protons in nucleic base pairs, and has been extended to NOEs involving purine C2 protons in tRNA. Deuterated tri-ethyl orthoformate was condensed with 5(4)-amino imidazole 4(5)-carboxamide to yield C2 deuterated hypoxanthine. C2 deuterated hypoxanthine was fed to a purine requiring mutant of yeast and C2 deuterated yeast tRNAPhe was isolated. This C2 deuterated tRNAPhe was used to identify A psi 31 and U8-A14. A psi 31 was found to be bonded through N1H. The utility of C2 deuteration in nucleic acid NMR is thus demonstrated.
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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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