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. Author manuscript; available in PMC: 2014 Mar 7.
Published in final edited form as: J Phys Chem B. 2013 Feb 25;117(9):2653–2661. doi: 10.1021/jp3117227

Figure 2.

Figure 2

Representative high resolution 1D 1H NMR spectra of A) α-CTxMII, B) α-CTxMII[E11A], and C) α-CTxMII[N5R:E11A:H12K]. The pH value is shown for each spectrum, and the His12 C2H proton is labeled with an “x”, while the His9 C2H proton resonance is labeled with an “*”. In all cases, the spectra are stacked from low pH (bottom) to high pH (top).