1VRZ:
reference: De novo design and characterization of a helical hairpin eicosapeptide; emergence of an anion receptor in the linker region., Rudresh, Ramakumar S, Ramagopal UA, Inai Y, Goel S, Sahal D, Chauhan VS, Structure (Camb) 2004 Mar;12(3):389-96. PMID: 15016355

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