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Assay Method Information

Assay Name:  In Vitro Assay
Description:  Fluorescent Imaging Plate Reader (FLIPR) assay: Briefly, 293-human or mouse P2X7 stable cells were incubated in sucrose buffer, pH 7.4 [KCl (5 mM), NaH2PO4.2H2O (9.6 mM), HEPES (25 mM), sucrose (280 mM), glucose (5 mM), CaCl2 (0.5 mM), and probenecid (0.1425 g in 3 mL 1N NaOH was added for 500 mL solution)] in 384-well plates. 293-rat P2X7 stable cells were incubated in HHPB (pH 7.4) [consisting of Hank's BSS (1); HEPES (pH 7.4) (20 mM) (Sigma); probenecid (0.710 g/5 mL 1N NaOH) (Sigma); and BSA (0.05%) (Roche) which was added after the pH had been adjusted] in 384-well plates. Fluo-4 NW dye mix (Molecular Probes, Inc., Eugene, Oreg., USA) was prepared in buffer (see manufacturer's instructions). Cell plates were removed from the 37 C. incubator, the media discarded and then 30 μL of dye was added to each well. Plates were placed in the 37 C., non-CO2 incubator for 30 minutes and then room temperature for 30 minutes.
Affinity data for this assay
 

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Last update November 1, 2007
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