The coat protein complex II (COPII) coat is responsible for direct capture of membrane cargo proteins and for the physical deformation of the endoplasmic reticulum (ER) membrane that drives the transport vesicle formation. The use of an in vitro reconstitution system comprising purified components is desirable for studies aimed at elucidating the role(s) of individual proteins in a specific biochemical reaction. To investigate the assembly-disassembly of COPII coats in a completely reconstituted reaction, we have developed a synthetic budding reaction involving purified coat proteins and cargo-reconstituted proteoliposomes. We describe here a fluorescence resonance energy transfer (FRET)-based method for monitoring the kinetics of COPII coat complex assembly and disassembly in cargo-reconstituted proteoliposomes. This assay allows comparison of the time course of the coat disassembly from the cargo as monitored by FRET signal with the time course of accompanying Sar1p GTP hydrolysis by tryptophan fluorescence.
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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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