Figure 3: Biological activity of the chimeras.

2Aa and 2Ad refer to the Cry2Aa and Cry2Ad toxins respectively, and R01 through R37 represent the individual chimeras. The y-axis indicates the toxin’s relative toxicity following exposure of the test insect to 50 ppm toxin. The relative activity of each toxin was normalized to the activity of Cry2Aa. The original mortality data are shown in Supplementary Table 2.