Fig. 1.

Equilibrium thermal denaturation of A₂₁ and F_s peptides in explicit solvent by using the parm94 and parm-mod force fields. (Upper) The mean number of hydrogen bonds computed as the average number of w residues by using the classification described in Methods. (Lower) The average number of helices computed as the average number of unbroken stretches of w residues. Error bars are 65% confidence limits estimated by block averages. The F_s peptide is clearly more helical than A₂₁ under both force fields.