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The continuous regions on botulinum neurotoxin A (BoNT/A) light (L) chain recognized by anti-toxin antibodies (Abs) from mouse, horse and chicken have been mapped. We synthesized a panel of thirty-two 19-residue peptides that overlapped consecutively by 5 residues and encompassed the entire L chain (residues 1–453). Mouse Abs recognized 5 major antigenic regions on the L chain, horse Abs recognized...
This work was aimed at determining the BoNT/A L-chain antigenic regions recognized by blocking antibodies in human antisera from cervical dystonia patients who had become immunoresistant to BoNT/A treatment. Antisera from 28 immunoresistant patients were analyzed for binding to each of 32 overlapping synthetic peptides that spanned the entire L-chain. A mixture of the antisera showed that antibodies...
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