The Saccharomyces cerevisiae zinc finger protein Rim101p is activated by cleavage of its C-terminal region, which resembles PEST regions that confer susceptibility to proteolysis. Here we report that Rim20p, a member of the broadly conserved PalA/AIP1/Alix family, is required for Rim101p cleavage. Two-hybrid and coimmunoprecipitation assays indicate that Rim20p binds to Rim101p, and a two-hybrid assay shows that the Rim101p PEST-like region is sufficient for Rim20p binding. Rim101p-Rim20p interaction is conserved in Candida albicans, supporting the idea that interaction is functionally significant. Analysis of Rim20p mutant proteins indicates that some of its broadly conserved regions are required for processing of Rim101p and for stability of Rim20p itself but are not required for interaction with Rim101p. A recent genome-wide two-hybrid study (T. Ito, T. Chiba, R. Ozawa, M. Yoshida, M. Hattori, and Y. Sakaki, Proc. Natl. Acad. Sci. USA 98:4569-4574, 2000) indicates that Rim20p interacts with Snf7p and that Snf7p interacts with Rim13p, a cysteine protease required for Rim101p proteolysis. We suggest that Rim20p may serve as part of a scaffold that places Rim101p and Rim13p in close proximity.
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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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