Autophagy is a degradative transport pathway that delivers cytosolic proteins to the lysosome (vacuole). Cytosolic proteins appear inside the vacuole enclosed in autophagic vesicles. These autophagic vesicles are broken down in the vacuole together with their cytosolic content. The breakdown of vesicular transport intermediates is a unique feature of autophagy. We here identify Aut4p, a component essential for the disintegration of autophagic vesicles, inside the vacuole of S. cerevisiae cells. Aut4p is a putative integral membrane protein with limited homologies to permeases. Chromosomal deletion of AUT4 has no obvious influence on growth, vacuolar acidification and the activities of vacuolar proteinases. Like proteinase B-deficient cells, aut4-deleted cells show a partial reduction in total protein breakdown during nitrogen starvation. A biologically active fusion protein of Aut4p and the green fluorescent protein is visualized at the vacuolar membrane and in punctate structures attached to the vacuole.
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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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