| abstract |
The present invention provides engineered clostridial toxins comprising at least one amino acid modification, wherein said at least one amino acid modification increases the isoelectric point (pI) of the engineered clostridial toxin to a value that is at least 0.2 pI units higher than the pi of an otherwise identical clostridial toxin lacking said at least one amino acid modification, and wherein said at least one amino acid modification is not located in the clostridial toxin binding domain (H C domain). Also provided are medical uses of the engineered clostridial toxins. |