Figure. Concentration-dependent activation of CXCR3 by CXCL11. Reporter cells were transfected with the expression plasmid for C-X-C motif chemo­kine receptor 3 (CXCR3) and treated with various concentrations of C-X-C motif chemo­kine ligand 11 (CXCL11). 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 29 nM.