| Assay Method Information | |
| | cAMPFunctional Assay |
| Description: | The assay is based on the competition between endogenous cAMP and exogenously added biotinylated cAMP. The capture of cAMP is achieved by using a specific antibody conjugated to Donor beads.Cell membranes prepared as described above, were resuspended in 1 ml stimulation buffer (HBSS 1x+BSA 0.1%+IBMX 0.5 mM+HEPES 5 mM+MgCl2 10 mM+GTP 1 nM+GDP 10 uM+ATP 100 uM - pH 7.4). Cell membranes were dispensed into white 384-well microplates at final concentration of 1 ug/well and used for the determination of cAMP with the alphascreen cAMP functional assay (EnVision-PerkinElmer). Cell membrane/anti-cAMP Acceptor beads mix (5 ul) and a mixture of analysed compounds (dissolved in 100% DMSO to a final maximal concentration of 0.01% DMSO)/PGE2 (5 ul) were incubated at room temperature (22-23° C.) for 30 min in the dark. The Biotinylated-cAMP and donor beads (15 ul) were dispensed into each well to start the competition reaction. |
| Affinity data for this assay | |
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