2007
DOI: 10.1073/pnas.0611213104
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An in vitro and in vivo disconnect uncovered through high-throughput identification of botulinum neurotoxin A antagonists

Abstract: Among the agents classified as “Category A” by the U.S. Centers for Disease Control and Prevention, botulinum neurotoxin (BoNT) is the most toxic protein known, with microgram quantities of the protein causing severe morbidity and mortality by oral or i.v. routes. Given that this toxin easily could be used in a potential bioterrorist attack, countermeasures urgently are needed to counteract the pathophysiology of BoNT. At a molecular level, BoNT exerts its paralytic effects through intracellular cleavage of ve… Show more

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Cited by 117 publications
(121 citation statements)
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References 50 publications
(44 reference statements)
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“…SNAPtide (List Biological Laboratories) is a fluorogenic reporter for the detection of BoNT/A proteolytic activity that has long been used to characterize BoNT-drug interactions or BoNT enzymatic activity [49][50][51][52]. This reporter consists of a short peptide sequence with an internal donor/acceptor FRET pair, with the acceptor acting as a quencher.…”
Section: Comparisons With Snaptidementioning
confidence: 99%
“…SNAPtide (List Biological Laboratories) is a fluorogenic reporter for the detection of BoNT/A proteolytic activity that has long been used to characterize BoNT-drug interactions or BoNT enzymatic activity [49][50][51][52]. This reporter consists of a short peptide sequence with an internal donor/acceptor FRET pair, with the acceptor acting as a quencher.…”
Section: Comparisons With Snaptidementioning
confidence: 99%
“…Thus, it is important that this anomaly is more thoroughly investigated. The importance of determining the optimum length of a fully active LcA is more evident from the fact that some active site inhibitors showed nanomolar k i (19) when assayed with a short version of LcA but displayed micromolar k i (20,21) when assayed in its full-length, 448-residue version. Additionally, active site peptide inhibitors bound the full-length LcA with higher affinity than its shorter, 1-425-residue versions (22).…”
mentioning
confidence: 99%
“…Such knowledge will result in the design of better therapeutics and treatment regiments. Thus far, the mouse model of botulism has been used extensively for toxin detection, for toxin concentration standardization, and in the development of therapeutics (9,12).…”
mentioning
confidence: 99%