An assay for botulinum toxin types A, B and F that requires both functional binding and catalytic activities within the neurotoxin

Aim:  To develop a novel assay technique for the botulinum neurotoxin family (BoNTs) which is dependent on both the endopeptidase and receptor‐binding activities of the BoNTs and which is insensitive to antigenic variation with the toxin family.

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