Mammalian cells express many ras-like low molecular mass GTP-binding proteins (rab proteins) that are highly homologous to the Ypt1 and Sec4 proteins involved in controlling secretion in yeast. Owing to their structural similarity and to their variety, rab proteins have been postulated to act as specific regulators of membrane traffic in exocytosis and endocytosis, and rab5 has been shown to be involved in early endosome fusion in vitro. In agreement with their postulated functions, all rab proteins studied so far have been found in distinct subcompartments along the exocytic or endocytic pathways. To define the region mediating their specific localization, we transiently expressed rab2, rab5 and rab7 hybrid proteins in BHK cells, and determined their intracellular localization by immunofluorescence confocal microscopy and subcellular fractionation. Here we present evidence that the highly variable C-terminal domain contains structural elements necessary for the association of rab proteins with their specific target membranes in the endocytic pathway.
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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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