Figure. Concentration-dependent activation of UTS2R by uro­tensin II. Reporter cells were transfected with either the expression plasmid for uro­tensin 2 receptor (UTS2R) or the mock plasmid and treated with various concentrations of uro­tensin II. Data points shown are the mean ± SEM of an experiment performed in triplicate, and the curve is a fit to Hill equation with an EC50 of 92 pM.