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Comparison of biological activities of the purified mutant VT1s and wild-type VT1 (from Ref. 38)
| Toxin | Cytotoxic activity CD50 (µg) |
Mouse lethality LD50 (µg) |
Inhibition of protein synthesis ED50 (µg) |
| E167Q | 30 | 80 | >100 |
| R170L | 9 | 10 | 2 |
| Wild-type | 0.0001 | 0.04 | 0.008 |
