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. Author manuscript; available in PMC: 2010 Oct 15.
Published in final edited form as: Bioorg Med Chem Lett. 2009 Aug 27;19(20):5848–5850. doi: 10.1016/j.bmcl.2009.08.079

Figure 1.

Figure 1

Synthetic FRET substrate for the BoNT/B light chain protease. K = lysine with 7-methoxycoumarin-4-acetic acid coupled; X = diaminopropionic acid coupled to 2,4-dinitrophenyl.