Human FPR1

Figure. Concentration-dependent activation of FPR1 by fMLP

Reporter cells were transfected with either the expression plasmid for human formyl peptide receptor 1 (FPR1) or the mock plasmid and treated with various concentrations of fMLP. 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 3.5 nM.