Yeast produce two classes of secretory vesicles (SVs) that differ in both density and cargo protein content. In late-acting secretory mutants (e.g. snc1(ala43) and sec6-4), both low- (LDSV) and high-density (HDSV) classes of vesicles accumulate at restrictive temperatures. Here, we have found that disruptions in the genes encoding a dynamin-related protein (VPS1) or clathrin heavy chain (CHC1) abolish HDSV production, yielding LDSVs that contain all secreted cargos. Interestingly, disruption of the PEP12 gene, which encodes the t-SNARE that mediates all Golgi to pre-vacuolar compartment (PVC) transport, also abolishes HDSV production. In contrast, deletions in genes that selectively confer vacuolar hydrolase sorting to the PVC or protein transport to the vacuole (i.e. VPS34 and VAM3, respectively) have no effect. Thus, one branch of the secretory pathway in yeast involves an intermediate sorting compartment and has a specific requirement for clathrin and a dynamin-related protein in SV biogenesis.
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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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