To help clarify the role of DBF2, a previously described cell cycle protein kinase, high copy number suppressors of the dbf2 mutation were isolated. Three open reading frames (ORF) have been identified. One ORF encodes a protein which has homology to a human small nuclear riboprotein, while the remaining two are genes which have been identified previously, SIT4 and SPO12. SIT4 is known to have a role in the cell cycle but the nature of the interaction between SIT4 and dbf2 is unclear. SPO12 has until now been implicated exclusively in meiosis. However, we show that SPO12 is expressed during vegetative growth, moreover it is expressed under cell cycle control coordinately with DBF2. SPO12 is a nonessential gene, but it becomes essential in a DBF2 delete genetic background. Furthermore, detailed analysis of the cell cycle of SPO12 delete cells revealed a small but significant delay in mitosis. Therefore, SPO12 does have a role during vegetative growth and it probably functions in mitosis in association with DBF2.
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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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