Fig. 2.

Snapshots of the 48-peptide system at various reduced times, t^*, during a simulation (see Movie 1, which is published as supporting information on the PNAS web site) at c = 10 mM and T^* = 0.14 that results in a fibril. Hydrophobic sidechains are red; colors of backbone atoms on different peptides are assigned to make it easy to distinguish the various sheets in the resulting fibril. United atoms are not shown full size for ease of viewing.