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. 2010 Aug 19;2(8):2198–2212. doi: 10.3390/toxins2082198

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© 2010 by the authors; licensee MDPI, Basel, Switzerland

This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Chromatogram of onabotulinumtoxinA (BOTOX^® Lot #C1550C1) reaction solution without the reduction step (no DTT added) demonstrating the 529 peak is not generated from by onabotulinumtoxinA from the SNAPtide^®520 substrate without reduction.