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Alberts B, Bray D, Lewis J, et al. Molecular Biology of the Cell. 3rd edition. New York: Garland Science; 1994.

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Cover of Molecular Biology of the Cell

Molecular Biology of the Cell. 3rd edition.

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Figure 12-49. Protein glycosylation in the rough ER.

Figure 12-49Protein glycosylation in the rough ER

Almost as soon as a polypeptide chain enters the ER lumen, it is glycosylated on target asparagine amino acids. The oligosaccharide shown in Figure 12-48 is transferred to the asparagine as an intact unit in a reaction catalyzed by a membrane-bound oligosaccharyl transferase enzyme. There is one copy of this enzyme associated with each protein translocator in the ER membrane.

From: The Endoplasmic Reticulum

Copyright © 1994, Bruce Alberts, Dennis Bray, Julian Lewis, Martin Raff, Keith Roberts, and James D Watson.

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