Figure 2
From: Neutral evolution of Protein-protein interactions: a computational study using simple models
Size of neutral network components. For a representative 2D dimer, the size of the four largest components as a function of the selective pressure δ. As δ increases, there are fewer viable sequence pairs, but there is always a single connected component that is much larger than the other, small components. Dashed vertical lines are visual aids to show how the small components progressively break off from the largest one.