17 Glycan Engineering in Transgenic Plants

Annual Plant Reviews book series, Volume 41: Plant Polysaccharides
Muriel Bardor

Muriel Bardor

Université de Rouen, UPRES-EA 4358, IFRMP 23, Mont Saint Aignan Cédex, 76821 France

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José A. Cremata

José A. Cremata

CIGB, Department of Carbohydrate Chemistry, Havana, Cuba

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Patrice Lerouge

Patrice Lerouge

Université de Rouen, UPRES-EA 4358, IFRMP 23, Mont Saint Aignan Cédex, 76821 France

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First published: 19 April 2018
Citations: 1
This article was originally published in 2011 in Plant Polysaccharides, Volume 41 (ISBN 9781405181723) of the Annual Plant Reviews book series, this volume edited by Peter Ulvskov. The article was republished in Annual Plant Reviews online in April 2018.
Manuscript received October 2008

Abstract

N-glycosylation is a major post-translational modification step in the biosynthesis of proteins in eukaryotes. This process consists of two main steps, the early N-glycan processing occurring in the endoplasmic reticulum and its maturation in the Golgi apparatus. The early N-glycan processing steps are conserved among eukaryotes and are involved in the quality control of proteins. In contrast, the maturation steps in the Golgi apparatus give rise to a large variety of organism-specific complex structures. This divergence in the resulting N-glycan structures is a key issue when the plant is used as a cell factory for the production of human therapeutic proteins. In this chapter, we describe the main aspects of the N-glycan biosynthesis in plants as well as strategies that have been developed to engineer this N-glycosylation pathway in order to allow the production in transgenic plants of pharmaceutical proteins that carry human-like glycans.

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