Figure 3. Plasma levels of CK activity 3 h after injection of 30 μg of native BthTx-I (Nat), wild-type recombinant BthTx-I (Rec) and substrate-binding site mutants into the gastrocnemius muscle of mice.

The control experiment used an identical volume of PBS in the absence of protein. Results are expressed as the means±S.D. for a minimum of five independent experiments.