Aminoacyl-tRNA synthetases of bakers' yeast (Saccharomyces cerevisiae) were adsorbed to a phosphocellulose (P-cellulose) column, and those specific for tyrosine [EC 6.1.1.1], threonine [EC 6.1.1.3], valine [EC 6.1.1.9], and isoleucine [EC 6.1.1.5] were eluted with several specific tRNAs. Elutions of these synthetases were affected by ATP and/or MgCl2. The effects of ATP and MgCl2 differ with synthetases. Elutions of tyrosyl- and valyl-tRNA synthetases with their cognate tRNAs were more specific in the presence of MgCl2. Isoleucyl-tRNA synthetase was eluted with its cognate tRNA in the presence of both ATP and MgCl2. On the other hand, threonyl-tRNA synthetase was eluted in the absence of ATP and MgCl2 with unfractionated tRNA but not with some non-cognate tRNAs. This suggests that elution of threonyl-tRNA synthetase is highly specific. The present data on the effects of ATP or MgCl2 or both on this affinity elution will be useful for simple and rapid purification of the synthetases.
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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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