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. Author manuscript; available in PMC: 2010 Sep 1.
Published in final edited form as: J Biomol NMR. 2009 Jul 31;45(1-2):85–98. doi: 10.1007/s10858-009-9340-0

Figure 3.

Figure 3

Exchange broadening of 13Cα spins in HP67. CPMG relaxation dispersion profiles R2,rc(1/τcp) measured at a static magnetic field strength of 14.1 T for (a) Leu21, (b) Arg37, (c) Asn60, and (d) Phe76. The solid lines are fits to the data using (a) model 2, (b) model 2, (c) model 1, and (d) model 2 (see text for details). The dashed line corresponds to the value of R20 used to constrain the data in the limit of infinitely fast pulsing. The corresponding R2,HE dispersion data are plotted versus ωc2 in the insets; the solid lines are linear fits to the data.