Journal
MICROBIAL CELL FACTORIES
Volume 9, Issue -, Pages -Publisher
BMC
DOI: 10.1186/1475-2859-9-93
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Funding
- Flanders Agency for Innovation through Science and Technology (IWT)
- Marie Curie Excellence Grant [MEXT-014292]
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Background: Yeast expression systems with altered N-glycosylation are now available to produce glycoproteins with homogenous, defined N-glycans. However, data on the behaviour of these strains in high cell density cultivation are scarce. Results: Here, we report on cultivations under controlled specific growth rate of a GlycoSwitch-Man5 Pichia pastoris strain producing Granulocyte-Macrophage Colony-Stimulating Factor (GM-CSF) at high levels (hundreds of milligrams per liter). We demonstrate that homogenous Man(5)GlcNAc(2) N-glycosylation of the secreted proteins is achieved at all specific growth rates tested. Conclusions: Together, these data illustrate that the GlycoSwitch-Man5 P. pastoris is a robust production strain for homogenously N-glycosylated proteins.
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