关键词：
automated glycan assembly
carbohydrates
glycobiology
natural products
plant cell walls
摘要：
The plant cell wall provides the richest available resource of fermentable carbohydrates and biobased materials. The main component of plant cell walls is cellulose, which is the most abundant biomolecule on earth. Apart from cellulose, which is constructed from relatively simple beta-1,4-glucan chains, plant cell walls also contain structurally more complex heteropolysaccharides (hemicellulose and pectin), as well as lignin and cell-wall proteins. A detailed understanding of the molecular structures, functions, and biosyntheses of cell-wall components is required to further promote their industrial use. Plant cell-wall research is, to a large degree, hampered by a lsack of available well-defined oligosaccharide samples that represent the structural features of cell-wall glycans. One technique to access these oligosaccharides is automated glycan assembly;a technique in which monosaccharide building blocks are, similarly to automated peptide and oligonucleotide chemistry, successively added to a linker-functionalized resin in a fully automated manner. Herein, recent research into the automated glycan assembly of different classes of cell-wall glycans used as molecular tools for cell-wall biology is discussed. More than 60 synthetic oligosaccharides were prepared and printed as microarrays for screening monoclonal antibodies that recognize plant cell-wall polysaccharides. The synthesized oligosaccharides have also been used to investigate glycosyltransferases and glycoside hydrolases, which are involved in synthesis and degradation of plant cell walls, as well as for the analysis of cell-wall-remodeling enzymes.
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