Organelles such as lysosomes and synaptic vesicles are acidified by V-ATPases, which consist of a cytosolically oriented V1 complex that hydrolyzes ATP and a membrane-embedded VO complex that pumps protons. In yeast, V1-VO association is facilitated by the RAVE (regulator of H+-ATPase of the vacuolar and endosomal membrane) complex, but how higher eukaryotes assemble V-ATPases remains unclear. Here we identify a metazoan RAVE complex (mRAVE) whose structure and composition are notably divergent from the ancestral counterpart. mRAVE consists of DMXL1 or DMXL2, WDR7 and the central linker ROGDI. DMXL1 and DMXL2 interact with subunits A and D of the inactive, isolated V1. On dissipation of proton gradients, mRAVE binds to V1 and VO, forming a supercomplex on the membrane. mRAVE then catalyzes V1-VO assembly, enabling lysosomal acidification, neurotransmitter loading into vesicles and ATG16L1 recruitment for LC3/ATG8 conjugation onto single membranes. Our findings provide a molecular basis for neurological disorders caused by mRAVE mutations.
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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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