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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 19.

Figure 19

Plots of T1Zeff and T1Q vs. 1000/T at 17.6 T magnetic field strength for the M35 site in the amyloid fibrils comprised of amyloid-β (1–40) protein in the two-fold and three-fold symmetric polymorphs. The measurements employed the QCPMG signal-enhancement scheme. B) Structural representation of the 2-fold and 3-fold symmetric polymorphs of amyloid-β fibrils, view down the fibril axis.(20, 67) The M35 side-chain pointing into the water-accessible cavity is shown in red. Reprinted with permission from (66), Copyright (2016) Elsevier, License 3995621063676.