To identify host proteins interacting with the membrane-bound replication proteins of tombusviruses, we performed membrane yeast two-hybrid (MYTH) screens based on yeast cDNA libraries. The screens led to the identification of 57 yeast proteins interacting with replication proteins of two tombusviruses. Results from a split ubiquitin assay with 12 full-length yeast proteins and the viral replication proteins suggested that the replication proteins of two tombusviruses interact with a similar set of host proteins. Follow-up experiments with the yeast Cpr1p cyclophilin, which has prolyl isomerase activity that catalyzes cis-trans isomerization of peptidyl-prolyl bonds, confirmed that Cpr1p interacted with the viral p33 replication protein in yeast and in vitro. Replication of Tomato bushy stunt virus replicon RNA increased in cpr1Δ yeast, while over-expression of Cpr1p decreased viral replication. We also show that the Ess1p parvulin prolyl isomerase partly complements Cpr1p function as an inhibitor of tombusvirus replication.
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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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