In Saccharomyces cerevisiae, pyruvate carboxylase [EC 6.4.1.1] has an important anaplerotic role in the production of oxaloacetate from pyruvate. We report here the existence of two pyruvate carboxylase isozymes, which are encoded by separate genes within the yeast genome. Null mutants were constructed by one step gene disruption of the characterised PYC gene in the yeast genome. The mutants were found to have 10-20% residual pyruvate carboxylase activity, which was attributable to a protein of identical size and immunogenically related to pyruvate carboxylase. Immunocytochemical labelling studies on ultrathin sections of embedded whole cells from the null mutants showed the isozyme to be located exclusively in the cytoplasm. We have mapped the genes encoding both enzymes and shown the previously characterised gene, designated PYC1, to be on chromosome VII whilst PYC2 is on chromosome II.
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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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