A new undecasaccharide subunit of xyloglucans with two alpha-L-fucosyl residues
1991
Hisamatsu, M. | Impallomeni, G. | York, W.S. | Albersheim, P. | Darvill, A.G.
A new oligosaccharide subunit of xyloglucan was isolated from the beta-(1 leads to 4)-endoglucanase digestion products of the xyloglucan in what is referred to as "sycamore extracellular polysaccharides" and found to be an undecassaccharide having two terminal alpha-L-fucopyranosyl residues. The undecasaccharide was structurally characterized by 1H-n.m.r. spectroscopy, fast-atom bombardment mass spectrometry (f.a.b.- m.s.) and glycosyl-residue and glycosyl-linkage composition analyses. The structure of the undecasaccharide was confirmed by digesting it with a hydrolase that releases alpha-D-Xylp-(1 leads to 6)-D-Glc from the nonreducing end of xyloglucan oligosaccharides.
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