Fig. 3From: Construction of a Novel Bifunctional Biogenic Amine Receptor by Two Point Mutations of the H2-Histamine Receptor Effect of histamine on cAMP generation in transfected Hepa cells Although histamine had no effect on nontransfected Hepa cells (data not shown), it stimulated cAMP formation in cells transfected with the Ala186-Ser187 mutant H2-histamine receptor (ED50 = 3 × 10−8 M) in a fashion that could be inhibited by cimetidine (10−5 M) and propranolol (10−5 M). Data are represented as means ± SEM, n = 4.Back to article page