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. Author manuscript; available in PMC: 2013 Nov 7.
Published in final edited form as: J Am Chem Soc. 2012 Oct 24;134(44):18330–18337. doi: 10.1021/ja306946q

Figure 3.

Figure 3

FT spectra of the three-pulse ESEEM waveforms of Cu2+-Aβ complexes. (A) Soluble Cu2+-Aβ(1-16), experiment and simulation (dashed line), (B) Fibrillar Cu2+-Aβ(1-40), experiment and simulation (dashed line), (C) 13C,15N-His13-Cu2+-Aβ(1-40), (D) 13C,15N-His14-Cu2+-Aβ(1-40). Inset: Expanded view of double quantum harmonic region, for (A) soluble Cu2+-Aβ(1-16) and (B) fibrillar Cu2+-Aβ(1-40). Acquisition Parameters: microwave frequency, 8.750 GHz, B0 = 303 mT, T = 6 K, τ = 310 ns. Spectrum A is an average of 10 scans, spectrum B is an average of 16 scans, and spectra C and D are an average of 25 scans. Simulation parameters for spectra A and B are presented in Table 2.