MKK1/MKK2 and SLT2 (MPK1) are three Saccharomyces cerevisiae genes, coding for protein kinases, that have been postulated to act sequentially as part of the Pkc1p signalling pathway, a phosphorylation cascade essential for cell integrity. By using the 'two-hybrid system' and co-purification experiments on glutathione-agarose beads, we have shown that Slt2p interacts in vivo and in vitro with both Mkk1p and Mkk2p, thus confirming a previous suggestion based on epistasis experiments of the corresponding genes. Plasmid constructs of the SLT2 gene, deleted in the whole C-terminal non-kinase region or part of it, and therefore containing all of the conserved kinase subdomains, were still functional in complementation of the slt2 lytic phenotype and in vivo interaction with Mkk1p and Mkk2p. In contrast, the Slt2p C-terminal domain (162 residues) that carries a glutamine-rich fragment followed by a 16 polyglutamine tract, was shown to be dispensable for complementation and in vivo association with Mkk1p and Mkk2p. We have also demonstrated that the N-terminal putative regulatory domain of these two MAP kinase activators is the main region involved in the interaction with Slt2p.
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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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