The cytosol, nuclei, vacuoles, and mitochondria of the yeast Saccharomyces cerevisiae possess inorganic polyphosphates (polyPs). PolyP levels, spectra of polyP chain lengths, and their dependence on the growth phase are distinguished in the mentioned compartments. Inactivation of the PPX1 gene has no effect on the polyP metabolism under cultivation of the yeast in medium with glucose and 5-7 mM P(i). Inactivation of the PPN1 gene results in elimination of the high-molecular-mass exopolyphosphatases (approximately 120 to 830 kD) of the cytosol, nuclei, vacuoles, and mitochondria of S. cerevisiae suggesting that it is just PPN1 that encodes these enzymes. Expression of the low-molecular-mass exopolyphosphatase of approximately 45 kD encoded by the PPX1 gene decreases under PPN1 inactivation as well. While PPN1 inactivation has negligible effect on polyP levels, it results in increase in the long-chain polyPs in all the compartments under study.
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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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