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Tetanus toxin is prepared from cultures of Clostridium tetani. In SDS-gel electrophoresis, the intact toxin migrates as a single band (150,000 Da). Upon reduction, the toxin migrates as two bands (100,000 and 50,000 Da) corresponding to the heavy and light chains, respectively. Tetanus toxin, in the reduced form, cleaves recombinant GST synaptobrevin 2 in in vitro assays.
Information on the various uses of this and other Tetanus toxin products can be found on our blog.