We have isolated a novel gene (NUM1) with unusual internal periodicity. The NUM1 gene encodes a 313 kDa protein with a potential Ca2+ binding site and a central domain containing 12 almost identical tandem repeats of a 64 amino acid polypeptide. num1-disrupted strains grow normally, but contain many budded cells with two nuclei in the mother cell instead of a single nucleus at the bud neck, while all unbudded cells are uninucleate. This indicates that most G2 nuclei divide in the mother before migrating to the neck, followed by the migration of one of the two daughter nuclei into the bud. Furthermore, haploid num1 strains tend to diploidize during mitosis, and homozygous num1 diploid or tetraploid cells sporulate to form many budded asci with up to eight haploid or diploid spores, respectively, indicating that meiosis starts before nuclear redistribution and cytokinesis. Our data suggest that the NUM1 protein is involved in the interaction of the G2 nucleus with the bud neck.
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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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