Directed evolution, phage display and combination of evolved mutants: a strategy to recover the neutralization properties of the scFv version of BCF2 a neutralizing monoclonal antibody specific to scorpion toxin Cn2.

Abstract excerpt

BCF2, a monoclonal antibody raised against scorpion toxin Cn2, is capable of neutralizing both, the toxin and the whole venom of the Mexican scorpion Centruroides noxius Hoffmann. The single chain antibody fragment (scFv) of BCF2 was constructed and expressed in Escherichia coli. Although its affinity for the Cn2 toxin was shown to be in the nanomolar range, it was non-neutralizing in vivo due to a low stability....

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