Figure 1. GIP-induced concentration-dependent stimulation of intracellular calcium mobilization in CHO-K1/GIP/Gα15 cells. The cells were loaded with Calcium-4 prior to being stimulated with agonist GIP. The intracellular calcium change was normalized and measured by FLIPR. The relative fluorescent units (RFU) were normalized and plotted against the log of the cumulative doses of GIP (Mean ± SD, n = 2). The EC50 of GIP on this cell was 0.12 µM.
1. EC50 value is calculated with four parameter logistic equation:
Y=Bottom + (Top-Bottom) / (1+10^((LogEC50-X)*HillSlope))
X is the logarithm of concentration. Y is the response
Y is RFU and starts at Bottom and goes to Top with a sigmoid shape.
2. Signal to background Ratio (S/B) = Top/Bottom
CHO-K1/GIP/Gα15 Stable Cell Line
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