Selected article for: "BFA treatment and enzyme galactosyltransferase"
Title: Compartmentation of the Golgi complex: brefeldin-A distinguishes trans- Golgi cisternae from the trans-Golgi network
  • Document date: 1990_9_1
    • ID: 47k2yobm_19
    Snippet: If cells are treated with 10/~g/ml BFA, proteins within the ER acquire endoglycosidase H-resistant oligosaccharides (9, 28) . Since resistance to endoglycosidase H reflects the concerted action of the medial Golgi enzymes, GlcNAc transferase I and Golgi mannosidase II (27) , these data suggest that resident enzymes of the medial Golgi return to the ER upon BFA treatment. Indeed, the redistribution of mannosidase II has been shown directly (28) . .....
    Document: If cells are treated with 10/~g/ml BFA, proteins within the ER acquire endoglycosidase H-resistant oligosaccharides (9, 28) . Since resistance to endoglycosidase H reflects the concerted action of the medial Golgi enzymes, GlcNAc transferase I and Golgi mannosidase II (27) , these data suggest that resident enzymes of the medial Golgi return to the ER upon BFA treatment. Indeed, the redistribution of mannosidase II has been shown directly (28) . We tested whether galactosyltransferase, a trans-Golgi enzyme (37) , and sialyltransferase, an enzyme localized to both the trans-Golgi and the TGN (38; see also reference 2), also return to the ER in the presence of BFA.

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