The genomic organization in Saccharomyces cerevisiae of the tRNA and aminoacyl-tRNA synthetase genes for two amino acids was investigated. Aspartic acid and serine were chosen for the study because of the number and diversity of their tRNA gene sequences and the availability of cloned tRNA and aminoacyl-tRNA synthetase genes. Chromosome assignments were determined by hybridization to DNA gel blots of chromosomal DNA resolved by contour-clamped homogeneous electric field gel electrophoresis. Our results show that the tRNA and the cognate synthetase genes in such a family are dispersed and, therefore, cannot be regulated via a mechanism dependent on close proximity of genes. In general, the genome of S. cerevisiae contains randomly dispersed tRNA genes that are transcribed individually. We have supported and expanded this view by applying the facile method of contour-clamped homogeneous electric field gel electrophoresis to the investigation of these small multigene families.
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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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