Eukaryotic cells use sophisticated mechanisms to direct protein traffic between subcellular compartments. In eukaryotic cells, transmembrane proteins are delivered for degradation in the lysosome or yeast vacuole via multivesicular bodies. The sorting of proteins into lumenal vesicles within multivesicular bodies is directed by the three ESCRT protein complexes. Here we describe the expression and purification of the ESCRT-II complex using the polycistronic expression vector pST39 developed by Tan. In a modification of Tan's procedure, Pfu polymerase amplification with overlapping oligonucleotides was used to generate the translation cassettes for subcloning into pST39 expression vector in a single step. This approach reduces the number of restriction sites and subcloning steps required to express a heterooligomeric protein complex, facilitating rapid screening of multiple complexes and complex variants for crystallization or biochemical characterization.
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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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