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Cocrystal structure of a diazobicyclo [4.3.1]decan-2-one with the FK1 domain of FKBP51 (representative for FKBPs). The protein surface is depicted in gray; the key amino acids are highlighted as yellow sticks, while the ligand is green. Blue atoms correspond to nitrogen, red atoms to oxygen. Hydrogen bonds are shown in yellow, van der Waals interactions in magenta. The side chain of Lys121 has been omitted for clarity.
