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Assay Method Information

Assay Name:  Biological Assay
Description:  CB1 and CB2 receptors are Gi-coupled GPCR. Activation of CB1 and CB2 receptors results in a decrease in cAMP production. An inverse agonist of the CB1 or CB2 receptor results in the opposite effect, an increase of cAMP production. The principle of this assay is based on HTRF® technology (Homogeneous Time-Resolved Fluorescence). The method is a competitive immunoassay between native cAMP produced by cells and the cAMP labeled with the fluorophore d2. The tracer binding is quantified by a Mab anti-cAMP labeled with Eu3+TBP-NHS Cryptate (supplied as part of the assay kit). The specific signal (i.e. energy transfer) is inversely proportional to the concentration of cAMP in the standard or sample.
Affinity data for this assay
 

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Last update November 1, 2007
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