The Binding Activity of Huamn GPRC5D with Anti-GPRC5D recombinant Antibody. Activity: Measured by its binding ability in a functional ELISA. Immobilized Human GPRC5D(CSB-MP882153HU) at 5 μg/mL can bind Anti-GPRC5D recombinant antibody, the EC<sub>50</sub> is 8.847-10.38 ng/mL.