Figure 4

Distribution of energies calculated according to Equation 1 for sidechain replacements classified as making 0-5 clashes using the old (Boolean) method. In the old method, 0, 1, or 2 clashes were considered not to form a bad clash while 3 or more clashes were considered to be a bad clash. In each plot, the shaded area shows those residues that were mis-classified according to the new energy-based criterion.