Supplementary Figure 3: 2D 15N-13Cα correlation spectra of glucagon fibrils.
From: The peptide hormone glucagon forms amyloid fibrils with two coexisting β-strand conformations
a, Sample 1. b, Sample 2. c, Sample 3. d, Sample 4. e, Sample 7c. f, Sample 8c. Note the presence of peak doubling for most residues. The spectra were measured using an out-and-back ZF- TEDOR sequence with a mixing time of 1.4–2.0 ms. All spectra were collected on an 800 MHz spectrometer under 10 kHz MAS at a setpoint temperature of 293 K.
