Human P2RY4

Figure. Concentration-dependent activation of P2RY4 by ATP

Reporter cells were transfected with either the expression plasmid for human pyrimidinergic receptor P2Y4 (P2RY4) or the mock plasmid and treated with various concentrations of ATP. Data points shown are the mean ± SEM of an experiment (n = 3), and the curve is a fit to Hill equation with an EC50 of 27 µM.