The Binding Activity of TMEFF2 with Anti-TMEFF2 monoclonal antibody. Activity: Measured by its binding ability in a functional ELISA. Immobilized Human TMEFF2 (CSB-MP883439HU) at 2 μg/mL can bind Anti-TMEFF2 recombinant antibody, the EC<sub>50</sub> is 2.129-2.956 ng/mL.