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. Author manuscript; available in PMC: 2018 Aug 1.
Published in final edited form as: Prog Nucl Magn Reson Spectrosc. 2017 Mar 14;101:1–17. doi: 10.1016/j.pnmrs.2017.02.001

Figure 25.

Figure 25

Activation energies for the rotameric jumps of the methyl axis (top) and energy difference between major and minor rotameric states (bottom) for the hydrophobic core methyl-bearing side-chains of the villin headpiece (HP36, blue circles) protein and amyloid-β(1–40) (red circles).