The Binding Activity of Human GCGR with Anti-GCGR recombinant antibody.. Activity: Measured by its binding ability in a functional ELISA. Immobilized Human GCGR (CSB-MP009316HU1) at 2 μg/mL can bind Anti-GCGR recombinant antibody, the EC<sub>50</sub> is 14.57-32.56 ng/mL.