Intermediate filaments are abundant cytoskeletal components whose specific cellular functions are poorly understood. The Saccharomyces cerevisiae protein MDM1 displays structure and solubility properties that are similar to those of intermediate filament proteins of animal cells. Yeast cells that have a mutant form of MDM1 exhibit temperature-sensitive growth and defective transfer of nuclei and mitochondria to daughter cells during incubation at the nonpermissive temperature of 37 degrees C. The purified, wild-type MDM1 protein readily forms 10-nanometer-wide filaments at either 4 degrees C or 37 degrees C. In contrast, the purified, mutant protein forms filaments at 4 degrees C but fails to form such structures at 37 degrees C. These results suggest that intermediate filament proteins are universal components of eukaryotic cells.
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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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