Assay Report Card

ID: ALA3706138

Type: Binding

Description: Scintillation Proximity Assay: The ability of a compound to inhibit PDE10 enzymatic activity can be demonstrated by any number of assays that are known in the art. The products of Examples 1-175 were tested in the assay described below.PDE10 activity was measured using a scintillation assay (SPA-based method) similar to that previously described by Seeger, T. F. et al., Brain Research 985 (2003) 113-126. The compounds' relative activity as PDE10 inhibitors was investigated by assaying a fixed amount of enzyme in the presence of the test compound and low substrate concentration (cAMP) such that an IC50 could be determined. More specifically, this assay uses a Scintillation Proximity Assay (SPA) to measure the inhibition of rat1 and human recombinant2 PDE10 enzyme activity by compounds in vitro (preparation of enzymes described below). The assay is performed in a 384-well format with 50 uL assay buffer (50 mM TRIS pH 7.5; 1.3 mM MgCl2; 0.01% Brij) containing enough PDE10.

Organism: Rattus norvegicus