The bimolecular fluorescence complementation (BiFC) assay has been widely accepted for studying in vivo detection of protein-protein interactions in several organisms. To facilitate the application of the BiFC assay to yeast research, we have created a series of plasmids that allow single-step, PCR-based C- or N-terminal tagging of yeast proteins with yellow fluorescent protein fragments for BiFC assay. By examination of several interacting proteins (Sis1-Sis1, Net1-Sir2, Cet1-Cet1 and Pho2-Pho4), we demonstrate that the BiFC assay can be used to reliably analyse the occurrence and subcellular localization of protein-protein interactions in living yeast cells. The sequences for the described plasmids were submitted to the GenBank under Accession Nos: EF210802, pFA6a-VN-His3MX6; EF210803, pFA6a-VC-His3MX6; EF210804, pFA6a-VN-TRP1; EF210807, pFA6a-VC-TRP1; EF210808, pFA6a-VN-kanMX6; EF210809, pFA6a-VC-kanMX6; EF210810, pFA6a-His3MX6-P(GAL1)-VN; EF210805, pFA6a-His3MX6-P(GAL1)-VC; EF210806, pFA6a-TRP1-P(GAL1)-VN; EF210811, pFA6a-TRP1-P(GAL1)-VC; EF210812, pFA6a-kanMX6-P(GAL1)-VN; EF210813, pFA6a-kanMX6-P(GAL1)-VC; EF521883, pFA6a-His3MX6-P(CET1)-VN; EF521884, pFA6a-His3MX6-P(CET1)-VC; EF521885, pFA6a-TRP1-P(CET1)-VN; EF521886, pFA6a-TRP1-P(CET1)-VC; EF521887, pFA6a-kanMX6-P(CET1)-VN; EF521888, pFA6a-kanMX6-P(CET1)-VC.
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | 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 | Type | Assay | Annotation | Action | Modification | Phenotype | Source | Reference | Note |
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| Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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