X-ray structure of human butyrylcholinesterase complex with 3-pyridin-4-yl-2,4-dihydro-indeno[1,2-.C.]pyrazole is published by Knez et al. and is available (4XII). Inhibiting an epoxide hydrolase virulence factor from Pseudomonas aeruginosa protects CFTR is published by Bahl et al. and structure of the CFTR inhibitory factor Cif bound to tiratricol is available (4YX9). Crystal Structure of human DPP-IV in complex with Anagliptin is available (3WQH) and published by Watanabe et al.