Autophagy is the degradation of a cell's own components within lysosomes (or the analogous yeast vacuole), and its malfunction contributes to a variety of human diseases. Atg9 is the sole integral membrane protein required in formation of the initial sequestering compartment, the phagophore, and is proposed to play a key role in membrane transport; the phagophore presumably expands by vesicular addition to form a complete autophagosome. It is not clear through what mechanism Atg9 functions at the phagophore assembly site (PAS). Here we report that Atg9 molecules self-associate independently of other known autophagy proteins in both nutrient-rich and starvation conditions. Mutational analyses reveal that self-interaction is critical for anterograde transport of Atg9 to the PAS. The ability of Atg9 to self-interact is required for both selective and nonselective autophagy at the step of phagophore expansion at the PAS. Our results support a model in which Atg9 multimerization facilitates membrane flow to the PAS for phagophore formation.
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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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