title: The active site of acetylcholin esterase probed by a photochromic ligand.
mesh_terms: D001391:Azo Compounds / Q000494:pharmacology*; D001665:Binding Sites; D055598:Chemical Phenomena; D002621:Chemistry; D002800:Cholinesterase Inhibitors; D003956:Dialysis; D008024:Ligands / Q000494:pharmacology; D008962:Models, Theoretical; D009904:Optical Rotation; D009905:Optical Rotatory Dispersion; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology; D013053:Spectrophotometry; D013056:Spectrophotometry, Ultraviolet
chemical_list: D001391:Azo Compounds; D002800:Cholinesterase Inhibitors; D008024:Ligands; D000644:Quaternary Ammonium Compounds