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Figure 2 | BMC Structural Biology

Figure 2

From: Conformational study of the protegrin-1 (PG-1) dimer interaction with lipid bilayers and its effect

Figure 2

Backbone hydrogen bond. Fractions of intermolecular and intramolecular backbone hydrogen bonds (H-bonds), QH-bond, as a function of the time, t, (a) for the antiparallel (A1 & A2 – 1 st & 2 nd rows) and parallel (P1 & P2 – 3 rd & 4th rows) β-sheets at the amphipathic interface of the lipid bilayer, and (b) for the antiparallel (A1) and parallel (P1) β-sheets in water. The red lines denote the fraction of intermolecular H-bond at the dimer interface, and the light and dark blue lines denote the fractions of intramolecular H-bond within each β-hairpin monomer.

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