Amino acids stored in the vacuoles are exported to the cytosol mainly for protein synthesis; however, the molecular identity of vacuolar amino acid exporters remains obscure in plants. Here, we demonstrate that the heterologous expression of AtAVT3 genes, Arabidopsis homologs of AVT3 and AVT4 encoding vacuolar amino acid exporters in yeast, reduces vacuolar amino acid levels in the avt3∆avt4∆ yeast cells. In vitro experiments revealed that 14 C-labeled Ala and Pro are exported from vacuolar membrane vesicles by AtAvt3A in an ATP-dependent manner. In Arabidopsis, AtAvt3A fused with green fluorescent protein localizes to the vacuolar membrane. We propose that AtAVT3 family represents the long sought-for vacuolar amino acid exporters in plants.
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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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