The regulation of membrane traffic involves the Rab family of Ras-related GTPases, of which there are a total of 11 members in the yeast Saccharomyces cerevisiae. Previous work has identified PRA1 as a dual prenylated Rab GTPase and VAMP2 interacting protein [Martinic et al. (1999) J. Biol. Chem. 272, 26991-26998]. In this study we demonstrate that the yeast counterpart of PRA1 interacts with Rab proteins and with Yip1p, a membrane protein of unknown function that has been reported to interact specifically with the Rab proteins Ypt1p and Ypt31p. Yeast Pra1p/Yip3p is a factor capable of biochemical interaction with a panel of different Rab proteins and does not show in vitro specificity for any particular Rab. The interactions between Pra1p/Yip3p and Rab proteins are dependent on the presence of the Rab protein C-terminal cysteines and require C-terminal prenylation.
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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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