Table 1.
Toxicity of Cry1Ab toxins against Manduca sexta larvae.
| Toxin | LC50 in ng/cm2 | Localization of Mutation |
|---|---|---|
| (Fiducial Limits) * | ||
| Cry1Ab | 1.81 (1.3–2.5) | |
| Cry1Ab S41C | 1.84 (0.1–3.3) | Helix α-1 |
| Cry1Ab S71C | 2.5 (1.2–3.1) | Helix α-2b |
| Cry1Ab S39C-T239C | 0.86 (0.6–1.1) | Helices α-1 and α-7 |
| Cry1Ab W73C-I97C | >2000 | Helices α-2b and α-3 |
| Cry1Ab S39C | 0.93 (0.6–1.2) | Helix α-1 |
| Cry1Ab T239C | ND | Helix α-7 |
| Cry1Ab W73C | 1.4 (0.2–3.4) | Helix α-2b |
| Cry1Ab I97C | 1.5 (1.2–2.6) | Helix α-3 |
* Values of 95% fiducial limits are shown in parenthesis. ND: Not determined.