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. 2014 Jun 28;15:12. doi: 10.1186/1471-2091-15-12

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Copyright © 2014 Dirkx et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Hydrolysis of sucrose by T. vaginalis β-fructofuranosidase. Purified β-fructofuranosidase (~27 nM, final concentration) was incubated under standard assay conditions with the indicated concentrations of sucrose and the initial rate of sucrose hydrolysis was measured. Data were fitted to the Michaelis-Menten equation in order to determine kinetic constants. The results shown are the mean ± standard error for three independent experiments. K_m = 20.6 ± 2.2 mM; V_max = 1576 ± 48 μmol/min/mg.