The effects of N-glycosylation sites and the N-terminal region on the biological function of β1,3--acetylglucosaminyltransferase 2 and its secretion

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Enzymatic synthesis of gentiooligosaccharides by transglycosylation with β-glycosidases from Penicillium multicolor

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Hyperinduction of pectate lyase in Dickeya chrysanthemi EC16 by plant-derived sugars

Pectate lyase (Pel) synthesis in Dickeya chrysanthemi has been reported to be hyperinduced in planta and also in the medium containing plant extract in addition to polygalacturonate. In this study, the major components of Pel-hyperinducing fractions were found to be glucose, fructose, and sucrose by TLC and NMR. From the analysis of the sugars and their derivatives, it was found that acyclic d-hexoses with the trans relationship between C-3 and C-5 hydroxyl groups were found to be basic structure required for hyperinducing the expression of a major isozyme in infected plants (i.e. pelE). From the fact that some non-metabolizable sugars such as 2-deoxy-d-glucose and d-fucose could lead to hyperinduction and that the hyperinduction was observed only in the medium containing low concentration (<0.25%) but not higher of the sugars was added, these sugars may be considered to participate in hyperinduction as the signal rather than through their metabolism

Purification and Characterization of Two Lectins from a Toxic Moray, Gymnothrax javanicus

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