5V2O:
reference: De novo design of covalently constrained mesosize protein scaffolds with unique tertiary structures., Dang B, Wu H, Mulligan VK, Mravic M, Wu Y, Lemmin T, Ford A, Silva DA, Baker D, DeGrado WF, Proc Natl Acad Sci U S A. 2017 Sep 25. pii: 201710695. doi:, 10.1073/pnas.1710695114. PMID: 28973862

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