The yeast MER1 gene is required for the production of viable meiotic products and for meiotic recombination. Cytological analysis of chromosome spreads from a mer1 mutant indicates that the MER1 gene product is also required for normal chromosome pairing. mer1 strains make axial elements, precursors to the synaptonemal complex; however, the chromosomes in most nuclei do not become fully synapsed. The DNA sequence of the MER1 coding region was determined; the MER1 open reading frame encodes a 270-amino-acid protein with a molecular mass of 31.1 kilodaltons. The MER1 protein shows limited sequence similarity to calmodulin. Expression of the MER1 gene was examined by RNA blot hybridization analysis and through the construction and analysis of mer1::lacZ fusion genes. Expression of the MER1 gene is meiotically induced and required the IME1 gene product. Thus, expression of the MER1 gene early in meiosis is required for proper chromosome pairing and meiotic recombination.
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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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