| Solution Information | help | |
| Enzyme: | 5-hydroxytryptamine receptor 2A | |
| inhibitor: | BDBM114619 | |
| substrate: | n/a | |
| Solution Type: | Aqueous | |
| pH at Preparation: | n/a | |
| Temp. Prep.: | n/a | |
| Comments: | Assay Overview: The purpose of this assay is to determine HTR2A activator dose response curves for powder samples of compounds identified as HTR2A activator probe candidates. Compounds should activate Htr2a, resulting in membrane recruitment of beta-arrestin. The assay monitors GPCR-beta-arrestin proximity using low affinity fragment complementation of beta-galactosidase (beta-gal). This assay employs CHO-K1 cells which express Htr2a fused to a beta-gal peptide fragment (enzyme donor), and beta-arrestin fused to the complementary beta-gal fragment (enzyme acceptor). Cells are incubated with test compound, followed by measurement of well luminescence. As designed, compounds that activate Htr2a will cause beta-arrestin recruitment, resulting in reconstitution of the beta-gal holoenzyme. The reconstituted holoenzyme can then catalyze the hydrolysis of a substrate (GalactonStarSubstrateTM) which yields a chemiluminescent signal, resulting in increased well luminescence. Compounds are te | |
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