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Amphiphilic structure of PEP8R hairpin designed to self-assemble into β-sheet rich fibrils that define the network of a syringe-deliverable hydrogel. Fibrils are comprised of a bilayer of hairpins that hydrogen-bond along the long-axis of a given fibril. The solvent-exposed fibril surfaces display a high concentration of arginine side chains. The PEP8R sequence is shown.
