Docking of ER-derived vesicles to the cis-Golgi compartment in yeast requires vesicle and target membrane receptors (v-SNAREs and t-SNAREs) and the GTPase Ypt1p. The t-SNARE Sed5p is complexed with Sly1p in vivo. The mutant form Sly1-20p rescues Ypt1p-lacking cells from lethality, suggesting an inhibitory function of Sly1p in v-SNARE/t-SNARE interaction. Using surface plasmon resonance spectroscopy, we found that Sed5p binds Sly1p and Sly1-20p with equally high affinity (K(D) = 5.13 x 10(-9) M and 4.74 x 10(-9) M, respectively). Deletion studies show that the N-terminal half of Sly1p rather than the C-terminus (harbouring the E532K substitution in Sly1-20p) is most critical for its binding to Sed5p. These data appear to argue for an active rather than an inhibitory role of Sly1p in vesicle docking.
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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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