Figure 4.

(a) Correlation coefficient between $\delta {\psi }_1$ and each subsequent $\delta \varphi$ or $\delta \psi$ angle in a 10-residue α-helix (solid line with solid circles) and 10-residue extended structure (dashed line with solid squares). (b and c) Correlation coefficient between $\delta {\psi }_1$ angle and each subsequent $\delta \varphi$ or $\delta \psi$ angle in a 10-residue segment in structures that have a correlation coefficient of 1.0 (solid lines) between $\delta {\psi }_1$ and $\delta {\varphi }_{10}$ and in structures that have a correlation coefficient of -1.0 (dashed lines) between $\delta {\psi }_1$ and $\delta {\varphi }_{10}$. Results are shown for structures where the search started from the α-helix conformation (b) and those where the search started from the extended conformation (c). The ϕ,ψ angles for these structures are given in Table S2.