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. Author manuscript; available in PMC: 2013 Sep 1.
Published in final edited form as: Neuropharmacology. 2012 May 11;63(4):538–546. doi: 10.1016/j.neuropharm.2012.04.035

Table 4.

Species dependent effects on α3β4 responses using monomeric constructs

Acetylcholine potency, peak current data
Species EC50, µM

human α3β4 131 ± 7
rat α3β4 127 ± 6
Cytisine Varenicline

Species
EC50
µM
Imax
relative to AChmax
EC50
µM
Imax
relative to AChmax
human α3β4 890 ± 120 0.59 ± 0.03 5.6 ± 1.8 0.40 ± 0.03
rat α3β4 520 ± 50 1.10 ± 0.04 28 ± 3.2 0.39 ± 0.02