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Different structures of AMPs. (A) LL-37 adopts a typical α-helical conformation (10.2210/pdb2K6O/pdb). (B) Gomesin is a β-sheet peptide and stabilized by disulfide bonds (10.2210/pdb1KFP/pdb). (C) Indolicidin is a AMP with linear extension structure instead of well-defined 3D structure (10.2210/pdb1G89/pdb). (D) α1-purothionin adopts both alpha-helix and beta-sheet conformation, and arrows indicate extension direction (10.2210/pdb2plh/pdb).
