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. Author manuscript; available in PMC: 2013 Nov 20.
Published in final edited form as: Acc Chem Res. 2012 Mar 29;45(11):1896–1905. doi: 10.1021/ar3000025

Figure 5. The process of structure determination.

Figure 5

A group of ideal α-helical symmetric dimer structures with coupling consistent with experiment is the starting point for simulated annealing runs with XPlor-NIH (37, 38) with a module that incorporates vibrational dipole-dipole couplings as constraints.