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Molecular interactions of the (A–B) azithromycin e (C–D) hydroxychloroquine with acetylcholinesterase and butyrylcholinesterase. Receptor amino acids are represented by spheres of different colours around the structure. Asn: aspagirine, Tyr: tyrosine, Trp: tryptophan, Pro: proline, Gln: glutamine, Ser: serine, Gly: glycine, Phe: phenylalanine, Leu: leucine. The numbering indicated in the colored circles refers to the position of the amino acids in the primary structure of the protein.
