Dolichyl pyrophosphate phosphatase-mediated N-glycosylation defect dysregulates lipid homeostasis in Saccharomyces cerevisiae.

Abstract excerpt

The endoplasmic reticulum (ER) has numerous biological functions including protein synthesis, protein folding, and lipid synthesis. The CAX4 gene encodes dolichyl pyrophosphate (Dol-PP) phosphatase, which is involved in protein N-glycosylation. In cax4Δ cells, the N-glycosylation of the vacuolar carboxypeptidase (CPY) was severely affected, and expression of the ER chaperone Kar2p was elevated, which resulted in...

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