Figure 5.
1H detected 1H–15N MAS correlation spectra at (a) pH 8.5 and (b) pH 6.5 of M218–60 H57Y ILFY (CP contact time 1 = 1.5 ms, CP contact time 2 = 0.2 ms. ω0I/2π = 750 MHz, ωr/2π = 60 kHz, 15 kHz TPPM decoupling, T = 30 °C).
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