The RING finger peroxins Pex2p, Pex10p and Pex12p are central components of the peroxisomal matrix protein import machinery. The RING domain enables each of these proteins to exhibit ubiquitin-protein ligase activity, which has been linked to ubiquitin-dependent regulation of the peroxisomal import receptor Pex5p. The RING peroxins are considered to form a heteromeric complex in vivo, although the elucidation of the structural assembly, as well as the functional interplay of the RING domains, has remained elusive. Using in vitro approaches, we show that the RING domains form a heteromeric complex with Pex10p(RING) as a central component that directly binds the Pex2p(RING) and Pex12p(RING). The RING domains proved to function as heteromeric pairs that display an Pex10p-dependent enhanced ligase activity in an ubiquitin conjugating enzyme-selective manner.
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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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