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Assay Method Information

Assay Name:  cAMP Assay
Description:  Cells plated the day prior to the assay in clear bottom plates were viewed on an inverse microscope to ensure confluency in the range of 60-75%. The following mixtures and buffer solutions were prepared: (a) Buffer 1: HBSS (Mediatech Cat#21-023-CV) with 5 mM HEPES (1 mM stock, Gibco BRL Cat#15630-056) and 0.1% BSA (7.5% stock, Invitrogen Cat#15260-037); (b) Buffer 2: 0.5 mM IBMX (200 mM stock in DMSO, Sigma 15879) in Buffer 1; (c) 1 μM cAMP Standard (50 μM stock, Perkin Elmer Cat# AD0262) diluted in Buffer 2 and serially diluted in Buffer 2, 12 doses @ dilutions resulting in a dose range of 1 μM to 0.5 nM; (d) d2 labelled cAMP (CisBio HTRF Detection Kit Cat #62AM4PEB reconstituted with 6 mL d-H2O) diluted 1/20 with lysis buffer (CisBio HTRF Detection Kit Cat #62AM4PEB); (e) anti-cAMP (CisBio HTRF Detection Kit Cat # 62AM4PEB reconstituted with 5 mL d-H2O) diluted 1/20 with lysis buffer (CisBio HTRF Detection Kit Cat #62AM4PEB); and (f) Forskolin (Sigma Cat# F6886, 10 mM in DMSO) diluted first in DMSO to 1 mM and then to 1.5 μM in Buffer 2.
Affinity data for this assay
 

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Last update November 1, 2007
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