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The hydrophobic core of tetrameric peptide 1. (Left) Side view of the tetramer, highlighting the positions of the five palindromic core layers. (Right) Cross-sectional slices through layers A (Ile-3/DapBz-20) (A), B (Phe-8/Leu-16) (B), and C (Leu-12/Leu-12) (C). Residues comprising the core are in bold.
