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Assay Method Information

Assay Name:  Functional Assay
Description:  Chinese Hamster Ovary recombinant cells expressing the human NK-3 receptor and a construct that encodes the photoprotein apoaequorin were used for this assay. The antagonist activity of compounds of the invention is measured following pre-incubation (3 minutes) of the compound (at various concentrations) with the cells, followed by addition of the reference agonist (NKA) at a final concentration equivalent to the EC80 (3 nM) and recording of emitted light (FDSS 6000 Hamamatsu) over the subsequent 90-second period. The intensity of the emitted light is integrated using the reader software. Compound antagonist activity is measured based on the concentration-dependent inhibition of the luminescence response to the addition of Neurokinin A.
Affinity data for this assay
 

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Last update November 1, 2007
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