Accurate DNA replication is at the heart of faithful genome transmission in dividing cells. DNA replication is strictly controlled by various factors. However, how environmental stresses such as nutrient starvation impact on these factors and DNA replication is largely unknown. Here we show that DNA replication is regulated by target of rapamycin complex 1 (TORC1) protein kinase, which is a central regulator of cell growth and proliferation in response to nutrients. TORC1 inactivation reduced the levels of various proteins critical for DNA replication initiation, such as Mcm3, Orc3, Cdt1, and Sld2, and retarded DNA replication. TORC1 inactivation promoted proteasome-mediated Mcm3 degradation. Skp1-Cullin-F-box (SCF)-Grr1 and PEST motif mediated Mcm3 degradation. TORC1-downstream factors PP2A-Cdc55 protein phosphatase and protein kinase A regulated Mcm3 degradation. This study showed that TORC1 signaling modulates DNA replication to coordinate cell growth and genome replication in response to nutrient availability.
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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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Increase the total number of rows showing on this page by using the pull-down located below the table, or use the page scroll at the table's top right to browse through the table's pages; use the arrows to the right of a column header to sort by that column; filter the table using the "Filter" box at the top of the table; click on the small "i" buttons located within a cell for an annotation to view further details about experiment type and any other genes involved in the interaction.
| 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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