Effect of 200 ng of each strong inhibitor VHH on different TcTS clones from Cl-Brener strain.

aTrans-sialidase activity was expressed in nmoles of syalil residue transferred to lactose×mg−1×min−1 (by TIA). The values are the mean and standard deviation of at least three independent experiments.
bParenthesis indicate percentage of inhibition of TcTS activity that the remnant activity represents.
cLactitol was used was assayed as positive control of inhibition of TcTS activity.