摘要 |
The specification discloses modified Clostridial toxins comprising an exogenous Clostridial toxin di-chain loop protease cleavage site located within the di-chain loop region; polynucleotide molecules encoding such modified Clostridial toxins; method of producing such modified Clostridial toxins, method of activating such modified Clostridial toxins and methods of activating recombinantly-expressed Clostridial toxins.
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