Arimitsu, Hideyuki, Inoue, Kaoru, Sakaguchi, Yoshihiko, Lee, Jaechul, Fujinaga, Yukako, Watanabe, Toshihiro, Ohyama, Tohru, Hirst, Robert, and Oguma, Keiji (2003) Purification of fully activated Clostridium botulinum serotype B toxin for treatment of patients with dystonia. Infection and Immunity, 71 (3). pp. 1599-1603.

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Abstract

Clostridium botulinum serotype B toxins 12S and 16S were separated by using a beta-lactose gel column at pH 6.0; toxin 12S passed through the column, whereas toxin 16S bound to the column and eluted with lactose. The fully activated neurotoxin was obtained by applying the trypsin-treated 16S toxin on the same column at pH 8.0; the neurotoxin passed through the column, whereas remaining nontoxic components bound to the column. The toxicity of this purified fully activated neurotoxin was retained for a long period by addition of albumin in the preparation.

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