Pkc1p modifies CPY* degradation in the ERAD pathway
Review articleOpen access

AbstractThe process of endoplasmic reticulum-associated degradation (ERAD) involved in the degradation of misfolded N-linked glycoproteins utilizes Cdc48p which extracts misfolded glycoproteins from the lumen to the cytosol to present them for deglycosylation and degradation. Pkc1p has been identified as a component of the ERAD pathway, because deletion of the pkc1 gene impairs ERAD and causes accumulation of CPY* in the lumen of the ER, most probably because of the mislocalization of Cdc48p. In addition, we show that Cdc48p interacts in the cytosol with the deglycosylation enzyme, PNGase, only when Cdc48p is associated with a misfolded glycoprotein.

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