Figure 3

Comparison of the atom compositions of the neighbour residues for the three residue classes. In this figure, the atom compositions of the neighbour residues for the core interface, the rim interface, and the non-interface residues are compared. Colour black, red, and blue represent the core interface, the rim interface and the non-interface residues, respectively. The details of the 18 atom types can be found in the Additional file 2. a) Core cut-off equals to 0.2. b) Core cut-off equals to 0.8.