In budding yeast, vacuole inheritance is tightly coordinated with the cell cycle. The movement of vacuoles and several other organelles is actin-based and is mediated by interaction between the yeast myosin V motor Myo2 and organelle-specific adaptors. Myo2 binds to vacuoles via the adaptor protein Vac17, which binds to the vacuole membrane protein Vac8. Here we show that the yeast cyclin-dependent kinase Cdk1 phosphorylates Vac17 and that phosphorylation of Vac17 parallels cell cycle-dependent movement of the vacuole. Substitution of the Cdk1 sites in Vac17 decreases its interaction with Myo2 and causes a partial defect in vacuole inheritance. This defect is enhanced in the presence of Myo2 with mutated phosphorylation sites. Thus, Cdk1 appears to control the timing of vacuole movement. The presence of multiple predicted Cdk1 sites in other organelle-specific myosin V adaptors suggests that the inheritance of other cytoplasmic organelles may be regulated by a similar mechanism.
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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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| Evidence ID | Analyze ID | File | Description |
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