MD of NT4 N-terminal peptide (A–E) and NGF N-terminal peptide (F–I): (A) starting model, (B) percentage of time that each residue spent in helical conformation on the simulation timescale (50–200 ns), (C) secondary structure formation along the trajectory, (D and E) snapshots of the secondary structure formation of specific regions of the trajectory, (F) starting model, (G) percentage of time that each residue spent in helical conformation on the simulation timescale (50–200 ns), (H) secondary structure formation along the trajectory, and (I) a representative helical structure selected from the trajectory.