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Structural stability analysis of the three protofibrillar Aβ9-40 trimers in water. Time evolution of the Cα-RMSD (a) and the number of backbone hydrogen bonds (b) of each trimer. Snapshots of Aβ trimers generated at 0, 100 and 200 ns for 2BEG (c), 2LMN (d) and 2M4J (e) systems are also shown. The snapshots at t=0 ns are the same as the initial states shown in Table 1 for the Aβ system.
