Table 1.

Functional characteristics of expressed receptor constructs. Values are means ± SD from three experiments.

Construct	EC50 for CCh, μM	Max. Δ[Ca2+]i, nM	App. Ki for MT7, nM
M5	2.56 ± 0.34	498 ± 10	−
M5-EYE	5.29 ± 0.03	246 ± 33	24.06 ± 4.44
CH1	4.60 ± 1.61	236 ± 10	11.54 ± 2.56
CH2	6.14 ± 1.10	293 ± 17	1.85 ± 0.61