5OBK:
reference: Chemogenomic profiling of human and microbial FK506-binding proteins., Pomplun S, Sippel C, Hahle A, Tay D, Shima K, Klages A, Unal CM, Riess B, Toh HT, Hansen G, Yoon HS, Bracher A, Preiser PR, Rupp J, Steinert M, Hausch F, J Med Chem. 2018 Mar 26. doi: 10.1021/acs.jmedchem.8b00137. PMID: 29578710

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