FIGURE 4.

Displacement correlation matrix elements for all C_α-atoms plotted against their average distance, r_kk′, for intraprotein motions (A) and interprotein motions (B). Both graphs were computed for the full trajectory T1 with length 10 ns. The shaded lines show the average values for distance intervals of width 1 Å. The atomic distance, r_kk′, between two atoms k and k′, was calculated as r_kk′ = min _R{||r_k − r_k′ + R||}, where R is a lattice vector and thus r_kk′ is the minimum distance between atom k and any crystal image of atom k′ created by the periodic boundary conditions.