N-Glycosylation site analysis of baker's yeast Saccharomyces cerevisiae is of fundamental significance to elucidate the molecular mechanism of human congenital disorders of glycosylation (CDG). Here we present a mass spectrometry (MS)-based workflow for the profiling of N-glycosylated sites in S. cerevisiae proteins. In this workflow, proteolytic glycopeptides were enriched by using a hydrophilic material named Click TE-Cys to improve the glycopeptide selectivity and coverage. To enhance the reliability of the identified results, the enriched glycopeptides were subjected to parallel deglycosylation by using two endoglycosidases (i.e., PNGase F and Endo Hf), respectively, prior to LC-MS/MS analysis. On the basis of the workflow, a total of 135 N-glycosylated sites including 6 known, 93 potential, and 36 novel sites were identified and mapped to 79 proteins. Among the novel-type sites, nine sites from eight proteins, which were simultaneously identified via PNGase F and Endo Hf deglycosylation, are believed to possess high confidence. The established workflow, together with the profile of N-glycosylated sites, will contribute to the improvement of S. cerevisiae model for revealing the pathogenesis of CDG.
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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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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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Evidence ID | Analyze ID | File | Description |
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