Figure. Concentration-dependent activation of GLP1R by GLP1-(7-36)amide. Reporter cells were transfected with either the expression plasmid for glu­ca­gon like pep­tide 1 receptor (GLP1R) or the mock plasmid and treated with various concentrations of GLP1-(7-36)amide. 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 7.6 nM.