The toxins (concentration 1.67 μM) were incubated overnight at 25 °C in the absence or presence of SM/PC (1:1) MLVs (L/T ratio 600:1). The incubation buffer was 10 mM Hepes, pH 7.5/200 mM NaCl. The SDS/PAGE gel shows the bands corresponding to the supernatants obtained after centrifugation of the samples. Lanes 3, 5, 7 and 9 correspond to the toxins incubated in the presence of MLVs, whereas lanes 2, 4, 6 and 8 correspond to the toxins incubated in the absence of MLV. Lane 1 corresponds to the molecular-mass markers. The same result was obtained in a duplicate experiment.