Coat protein complex I (COPI)-coated vesicles, one of three major types of vesicular carriers in the cell, mediate the early secretory pathway and retrograde transport from the Golgi to the endoplasmic reticulum. COPI vesicles are generated through activation of the regulatory GTPase Arf1 at the donor membrane and the subsequent recruitment of coatomer, a coat protein complex consisting of seven stably associated components. Coatomer functions in binding and sequestering cargo molecules and assembles into a polymeric protein shell that encompasses the surface of COPI vesicles. Little is known about the structural properties of this heptameric complex. We have isolated native yeast coatomer and examined its structure and subunit organization by single-particle electron microscopy. Our analyses provide the first three-dimensional picture of the complete coatomer and reveal substantial conformational flexibility likely to be critical for its scaffolding function.
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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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| Evidence ID | Analyze ID | File | Description |
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