Precise protein localization is essential for normal cellular functions. However, recent studies have revealed that protein targeting is error-prone, and tail-anchored proteins mistargeted to mitochondria are transferred to the endoplasmic reticulum (ER) by an ATPase Msp1 (yeast)/ATAD1 (human) in the mitochondrial outer membrane for further quality examination in the ER to determine their fate, degradation or re-targeting. Analysis of the inter-organelle transfer of proteins requires a combination of time-lapse fluorescence microscopy and a system to achieve regulation of the protein levels of both transfer substrates and factors regulating the transfer in a coordinated manner at precise timing. This can be achieved by using a promoter switch for expression and acute depletion of involved factors through the degron-based proteasome system. In this chapter, we will describe methods to analyze inter-organelle protein transfer by fluorescence microscope within living yeast cells, by using the example of Msp1-mediated transfer of mistargeted proteins from mitochondria to the ER.
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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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