Figure 4.

Illustrative grid of snapshots of 6B10 molecules with affinity $\epsilon =0.68$ in the [Crowder]-[IDP] plane for P48 crowder polymers. As in Figure 2, the rows have constant IDP concentration (from top to bottom): 0.0003, 0.0004, 0.0006, 0.0008, and 0.001, and the crowder concentration increases across the columns (from left to right): 0.0, 0.0004, 0.0008, 0.0012, 0.0016, and 0.002. The binding site attraction is stronger than in Figure 2, but is still too weak to drive phase separation in the absence of the crowder, as seen in the first column.