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. 2008 Jan;22(1):147–155. doi: 10.1210/me.2007-0361

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Fig. 1. — Binding and Adenylyl Cyclase Activity Assays of Bpa²⁸-VIP

Left panel, Competitive inhibition of [¹²⁵I]VIP binding to CHO cell homogenates expressing hVPAC1 receptor by VIP and Bpa²⁸-VIP. The data are expressed as percentage of initial specific binding in the absence of competitor. Right panel, Action of increasing concentrations of VIP and Bpa²⁸-VIP on adenylyl cyclase activity in CHO cell homogenates. ○, Bpa²⁸-VIP; •, VIP. Points are mean values from three studies; sem values are less than 4% of mean values.