Table 5. Affinity of FPPQ for Receptors, Transporters, and Ion Channels Selected from Selectivity Profiling Panel, Compared with Its Affinities at 5-HT3R and 5-HT6R Main Targets, Suggest Decent Selectivity of FPPQ Compound.
| assaya | Ki [μM] |
|---|---|
| 5-HT3 | 0.00093b |
| 5-HT6 | 0.003b |
| α2A | 0.11 |
| 5-HT2B | 0.17 |
| β1 | 0.17 |
| D3 | 0.21 |
| H1 | 0.22 |
| Ca+2 channel L-type, dihydropyridine | 0.50 |
| Na+ channel, site 2 | 0.71 |
| 5-HT2C | 0.83 |
| 5-HT1B | 0.89 |
| hERG | 0.94 |
| Ca+2 channel L-type, benzothiazepine | 1.08 |
| DAT | 1.09 |
| NET | 1.24 |
| Ca+2 channel L-Type, phenylalkylamine | 1.32 |
| M1 | 1.94 |
| 5-HT5A | 2.87 |
| μ (OP3, MOP) | 2.88 |
| κ (OP2, KOP) | 3.27 |
| σ1 | 3.50 |
| α2B | 4.61 |