Figure 2.

Inhibitory effect of SUPER TWIGs on the biological activities of Stx1 (Upper) and Stx2 (Lower) in Vero cells. (a) ¹²⁵I-Stx-binding assays. ▴, ●, and ■ indicate SUPER TWIG (0)3, (1)6, and (1)12, respectively. The data are presented as the percentage of the activity in the absence of SUPER TWIGs (means ± SE, n = 3). (b) Cytotoxicity assay with Vero cells. Open symbols indicate SUPER TWIGs only. The data are presented as the percentage of the value in the absence of Stxs (means ± SE, n = 3).