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. Author manuscript; available in PMC: 2014 Nov 27.
Published in final edited form as: J Phys Chem B. 2013 Nov 14;117(47):14625–14634. doi: 10.1021/jp408064b

Figure 5.

Figure 5

Simulated spectra showing (a) a 13-residue ideal helix, with the isotope label calculated independently of (or uncoupled from) the rest of the helix, (b) a 13-residue ideal helix with the isotope label incorporated into and coupled with the other residues in the helix, and (c) a 13- residue ideal helix summed over 50 spectra with 16 cm−1 random disorder in the local mode frequencies. Spectra were simulated using a 15 cm−1 Lorentzian for each mode. Stick spectra (purple) are also included to emphasize how the normal mode structure changes as the couplings are broken.