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Figure 2 | BMC Neuroscience

Figure 2

From: Activation profiles of opioid ligands in HEK cells expressing δ opioid receptors

Figure 2

Dose response curves of representative ligands on δ opioid receptors Varying concentrations of opioid ligands were used to determine the potency and efficacy of each ligand in inhibiting the effect of 5 μM forskolin in producing cAMP, as described under methods. Maximal cAMP levels were in the range of 400–1000 pmole/well. Data presented are the average data from 2 or more experiments carried out in duplicate. Data have been normalized as described under methods. Error bars represent standard error of the mean of the normalized data. (■) Etorphine, (□) Lofentanil, () SKF 10047 and () Fentanyl.

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