Figure 3

Histogram of the distribution of the number of conserved residue sub-clusters in interfaces as a function of the interface size in (A) homodimers and (B) protein-protein complexes. The x-axis labels mark the middle of the range in each column. Bins are of size 400 Ų in (A) and 200 Ų in (B). In (A) only the interfaces of subunit A have been considered because of the identical nature of the two chains. In (B), each component of the protein complex has been considered separately.