Table 1.

Responses of nAChR Subtypes to 100 μM DMPA Relative to ACh Maximum Response

α4(3)β2(2)	0.47 ± 0.12
α4(2)β2(3)	0.46 ± 0.05
α4(2)β2(2)α5	0.39 ± 0.02
α6β2β3α4β2	0.46 ± 0.01
α3β4	0.01 ± 0.00
α1β1εδ	0.40 ± 0.03
α7	0.41 ± 0.02
α7a	20.83 ± 5.29

^aNet charge response to 100 μM 4-acetyl-1,1-dimethylpiperazin-1-ium plus 10 μM PNU-120596 relative to acetylcholine alone.