Assay Method Information

Assay Name:  Calcium Mobilization Assay
Description:  An aequorin-based luminescent assay for calcium mobilization was used to measure mobilization of intracellular Ca2+ (Bullock et al., Mol Pharmacol 65, 582-588, 2004). Chinese hamster ovary (CHO) cells stably expressing photoprotein aequorin and recombinant PKR1 or PKR2 were tested by this method. Briefly, the cells were charged in Opti-MEM (Invitrogen) containing 8 μM of coelenterazine cp at 37° C. for 2 hours. Cells were detached by brief typsinization and maintained in Hank's Balanced Salt Solution (HBSS) plus 10 mM HEPES (pH7.5) and 0.1% BSA at about 5×105 cells/ml. Luminescence measurements were made using a Berthold luminometer.
Affinity data for this assay
 

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