Figure 4.
Histogram of S2 statistic and the corresponding average θj angle. Values are shown for 100% (dotted), 10% (dashed), and 2.5% (solid) of selected Cα-atoms based on the motion amplitudes in the nonredundant data set of domain motions. Selection of the most moving atoms results in larger values of S2 (the larger values of S and S2 correspond to the lower average angle between the two sets of vectors). Dotted line points to the location of equal to 54.7°, the average angle between two randomly θj generated vectors.