N-linked oligosaccharide processing, but not association with calnexin/calreticulin is highly correlated with endoplasmic reticulum-associated degradation of antithrombin Glu313-deleted mutant.

Abstract excerpt

Previously we showed that two antithrombin mutants were degraded through an endoplasmic reticulum (ER)-associated degradation (ERAD) pathway [F. Tokunaga et al., FEBS Lett. 412 (1997) 65]. Here, we examined the combined effects of inhibitors of glycosidases, protein synthesis, proteasome, and tyrosine phosphatase on ERAD of a Glu313-deleted (DeltaGlu) mutant of antithrombin. We found that kifunensine, an ER...

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