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van Leeuwen, S.S. (author), Kralj, S. (author), Eeuwema, W. (author), Gerwig, G.J. (author), Dijkhuizen, L. (author), Kamerling, J.P. (author)
Mutagenesis of specific amino acid residues of the glucansucrase (GTF180) enzyme from Lactobacillus reuteri strain 180 yielded 12 mutant enzymes that produced modified exopolysaccharides (mEPSs) from sucrose. Ethanol-precipitated and purified mEPSs were subjected to linkage analysis, Smith degradation analysis, and 1D/2D <sup>1</sup>H NMR...
article 2009
TNO Kwaliteit van Leven (author), Kralj, S. (author), van Leeuwen, S.S. (author), Valk, V. (author), Eeuwema, W. (author), Kamerling, J.P. (author), Dijkhuizen, L. (author)
The reuteransucrase enzymes of Lactobacillus reuteri strain 121 (GTFA) and L. reuteri strain ATCC 55730 (GTFO) convert sucrose into alpha-d-glucans (labelled reuterans) with mainly alpha-(1→4) glucosidic linkages (50% and 70%, respectively), plus alpha-(1→6) linkages. In the present study, we report a detailed analysis of various hybrid GTFA/O...
article 2008