1Z2V:
reference: Conversion of type I 4:6 to 3:5 beta-turn types in human acidic fibroblast growth factor: Effects upon structure, stability, folding, and mitogenic function., Lee J, Dubey VK, Somasundaram T, Blaber M, Proteins. 2005 Dec 14;62(3):686-697. PMID: 16355415

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