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. 2014 Jan;85(1):83–90. doi: 10.1124/mol.113.089649

TABLE 3.

Affinity and potency values for morphinans using GloSensor and Tango assays

Morphinans G Protein EC50 G Protein Emax Arrestin EC50 Arrestin Emax Bias Factor
nM nM
Salvinorin A 5.18 (−8.29 ± 0.10) 99.7 5.75 (−8.24 ± 0.06) 97.2 1
β-NNTA 0.305 (−9.52 ± 0.12) 97.0 0.268 (−9.57 ± 0.12) 84.5 1
6′ GNTI 4.74 (−8.32 ± 0.09) 96.5 7.38 (−8.13 ± 0.12) 34.7 6 G protein
5′ GNTI Antagonist Antagonist