Assay Method Information

Assay Name:  Scintillation Proximity Assay
Description:  [3H]-Pyrilamine binding experiments are carried out in SPA (scintillation proximity assay) 96-well format. Membranes used in this assay are prepared from HEK-293 cells stably expressing recombinant H1 receptor (human). The incubation is initiated by the addition of a mixture of WGA PVT SPA beads (1 mg/well, Perkin Elmer (MA, USA) RPNQ0001) and 3 μg membranes to assay buffer (67 mM Tris; pH 7.6) containing 3.5 nM [3H]-Pyrilamine and varying concentrations of the test compound (10 point concentration response curves). Non-specific binding is determined in the presence of 10 μM Triprolidine. Samples are incubated for 4 hr. at room temperature (22 C.) and then read in a Microbeta Trilux.
Affinity data for this assay

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