Yeast mitochondrial RNA polymerase is a nuclear-coded protein of approximately 90,000 daltons comprised of two 45,000-dalton subunits of pI 6.9 to 7.0. To investigate the nature of the initial translation product of the RNA polymerase, we have analyzed those products of a cell-free translation system directed by yeast RNA that are immunoreactive with antibodies to the 45,000-dalton peptide of polymerase. A precursor of one or more of the subunits of the polymerase, 2,000 daltons later than the mature product, has been characterized using immunoreaction, immunocompetition, and peptide digestion. The role of transcription of the polymerase gene in catabolite repression of mitochondrial development has been investigated by analyzing the changes in cell-free synthesis of the RNA polymerase precursor during glucose and raffinose growth. The results indicate an increase in precursor synthesis and probably in the corresponding transcript abundance during glucose derepression. In contrast, the precursor is present at high levels until stationary phase during raffinose growth. These data indicate the involvement of increased transcription of the polymerase gene in the process of derepression.
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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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