Figure 8.

Calculated length dependence of the reaction-limited rate. The values of k_R obtained from the conformations generated with the CBX model are shown for the d_α values reported in Table 2 for agq (circles), age (squares), and aqe (triangles) in aqueous buffer (black symbols), urea (white symbols), and GdmCl (gray symbols). For comparison, the polynomial fits obtained in Buscaglia et al. (28) for peptide C(AGQ)_jW in water (short dashed line) and GdmCl (long dashed lines) are also shown. As a reference, power laws dependences with exponents −1.5 and −2.0 are shown in the figure (dotted lines). A vertical dotted line is plotted in correspondence of 13 peptide bonds, which is the length of the peptides experimentally investigated.