Figure 3.

The B-factors of Cα atoms in a myoglobin (1a6m) are plotted as a function of the residue index (thick solid line). The total, internal (EPIRM), and external (eGNM) fluctuations (thin solid, broken, and dotted lines, respectively) are normalized using a scaling factor to equate the areas enclosed by B-factors and by the total fluctuations of eGNM. Note that the relatively featureless profile of external fluctuations is in the bottom of the figure. In this particular example, the total, internal, and external fluctuations have correlation coefficients of 0.651, 0.663, and 0.536 with the observed B-factors.