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. Author manuscript; available in PMC: 2012 Oct 12.
Published in final edited form as: J Am Chem Soc. 2011 Sep 15;133(40):16062–16071. doi: 10.1021/ja204035k

Fig. 5.

Fig. 5

ωp (in cm−1) as a function of residue number calculated for the two-fold model I and the three-fold and the single-column models. The isotope shift is taken to be −70 cm−1. Experimental values are shown as black circles.