Engineering complex-type N-glycosylation in Pichia pastoris using GlycoSwitch technology
| Autor: | Roland Contreras, Pieter P. Jacobs, Wouter Vervecken, Nico Callewaert, Steven Geysens |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Glycosylation
Genetic Vectors Glycosyltransferase Gene Golgi Apparatus Heterologous Protein engineering Biology Golgi apparatus Endoplasmic Reticulum Protein Engineering biology.organism_classification Pichia General Biochemistry Genetics and Molecular Biology Pichia pastoris carbohydrates (lipids) chemistry.chemical_compound symbols.namesake Biochemistry chemistry N-linked glycosylation Glucosyltransferases symbols |
| Zdroj: | Nature Protocols. 4:58-70 |
| ISSN: | 1750-2799 1754-2189 |
| Popis: | Here we provide a protocol for engineering the N-glycosylation pathway of the yeast Pichia pastoris. The general strategy consists of the disruption of an endogenous glycosyltransferase gene (OCH1) and the stepwise introduction of heterologous glycosylation enzymes. Each engineering step results in the introduction of one glycosidase or glycosyltransferase activity into the Pichia endoplasmic reticulum or Golgi complex and consists of a number of stages: transformation with the appropriate GlycoSwitch vector, small-scale cultivation of a number of transformants, sugar analysis and heterologous protein expression analysis. If desired, the resulting clone can be further engineered by repeating the procedure with the next GlycoSwitch vector. Each engineering step takes approximately 3 weeks. The conversion of any wild-type Pichia strain into a strain that modifies its glycoproteins with Gal(2)GlcNAc(2)Man(3)GlcNAc(2)N-glycans requires the introduction of five GlycoSwitch vectors. Three examples of the full engineering procedure are provided to illustrate the results that can be expected. |
| Databáze: | OpenAIRE |
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