Experimental confirmation of in vitro GPCR activity of compounds and their scaffolds screened from a chemical library. Experimental confirmation of in.

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Experimental confirmation of in vitro GPCR activity of compounds and their scaffolds screened from a chemical library. Experimental confirmation of in vitro GPCR activity of compounds and their scaffolds screened from a chemical library. Dose–response curves of the top‐ranked compounds from the Bionet chemical library for (A) ADRB2 agonists, (B) ADRB2 antagonists, and (C) NPY1R agonists. Inactive compounds (cutoff of 100 μM in EC50/IC50 value) are not shown. Red lines indicate results for compounds exhibiting scaffold hopping based on the criteria explained in the Results section. Blue lines indicate results from compounds with almost completely overlapping structures. Compounds 29 (N‐(tert‐butyl)‐N′‐(4‐methoxybenzyl)thiourea), 30 (2‐ethyl‐2‐{[(2‐fluorobenzyl)oxy]methyl}‐5,5‐dimethyltetrahydrofuran), and 5 are corresponding to the curves in A from left to right. Compounds 8, 33, 30, 28 (2‐[2,5‐dimethyl‐4‐(morpholinomethyl)phenoxy]acetamide), 31 (2‐(3‐isopropoxyphenyl)‐1‐ethanamine), 9 ((2‐aminophenyl)(4‐methylphenyl)amine), and 32 (2‐morpholino‐2‐oxoacetohydrazide) are corresponding to the curves in B from left to right. Compounds 12, 34, and 15 (diethyl 2‐(3,5‐dimethyl‐1H‐pyrazol‐1‐yl)‐6‐hydroxy‐3,5‐pyridinedicarboxylate) are corresponding to the curves in C from left to right. (D) Max‐MCSs between identified active compounds (left) and the most relevant compounds found within the entire training compound data set (center) or within the ligand set of each target protein (right) that exhibited scaffold hopping. The max‐MCSs between compounds are indicated in red. The columns ‘bioactivity’ and ‘ligand’ indicate the existence of publications regarding the active compound: ‘bioactivity’ indicates whether a publication has already described that the compound is bioactive; ‘ligand’ indicates whether a publication has uncovered the ADBR2/NPY1R ligand activity, having known the compound is bioactive. All identified active compounds are shown in Supplementary Figure S9. See Table I for compound names of the numbered compounds. Hiroaki Yabuuchi et al. Mol Syst Biol 2011;7:472 © as stated in the article, figure or figure legend