Figure 4:

(A) 1.6 ms mixing RFDR spectra of Aβ_1-42 (red) and Aβ_M01-42 (black) recorded at 800 MHz, ω_r/2π=20 kHz, VT gas regulated to 277 K with 83 kHz CW ¹H decoupling during evolution, and 83 kHz TPPM ¹H decoupling during acquisition. (B) 1.6 ms mixing ZF-TEDOR spectra of Aβ_1-42 (red) and Aβ_M01-42 (black) recorded at 800 MHz, ω_r/2π=20 kHz, VT gas regulated to 277K with 83 kHz TPPM during acquisition.