Table 3.
Toxicity measurements of monomer and prepore forms of Cry1Ab as measured by LC50 of toxin on Manduca sexta larvae.
| Cry1Ab monomer | 20.0 (7.5 – 31.7) |
| Cry1Ab oligomers formed in solution | 28.0 (10.0 – 46.5) |
| Cry1Ab toxin extracted from membrane** | 25.0 (5.0 – 35.0) |
| Cry1Aa prepore oligomer | 17.1 (6.2 – 35.3) |
| Cry1Ab prepore oligomer | 26.2 (3.9 – 40.8) |
| Cry1Ab F371C prepore oligomer | >2000 |
**
Cry1Ab toxin in this group was obtained by dissolving the BBMV after insertion of toxin using 10 mM HEPES pH 7.5 buffer + 1%β-octyl glucoside detergent.