5NOW:
reference: Pushing the Limits of Detection of Weak Binding Using Fragment-Based Drug Discovery: Identification of New Cyclophilin Binders., Georgiou C, McNae I, Wear M, Ioannidis H, Michel J, Walkinshaw M, J Mol Biol. 2017 Aug 4;429(16):2556-2570. doi: 10.1016/j.jmb.2017.06.016. Epub, 2017 Jun 30. PMID: 28673552

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