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Measured by its binding ability in a functional ELISA. Immobilized PD-1 at 2 μg/ml can bind Anti-PD-1 recombinant antibody, the EC₅₀ of human PD-1 protein is 6.087-7.854 ng/ml.

Measured by its binding ability in a functional ELISA. Immobilized human CLDN18.2 at 5 μg/ml can bind anti-CLDN18.2 recombinant Monoclonal Antibody (CSB-RA005498A1HU), the the EC₅₀ is 5.225-9.256 ng/ml.

Measured by its binding ability in a functional ELISA. Immobilized HER2 at 2 μg/ml can bind Trastuzumab, the EC₅₀ is 2.179-2.825 ng/ml.

Measured by its binding ability in a functional ELISA. Immobilized PD-L1 at 2 μg/ml can bind Anti- PD-L1 mouse monoclonal antibody (CSB-MA878942A1m, antigen from E.coli), the EC₅₀ of human PD-L1 protein is 1.252-1.653 ng/mL

Measured by its binding ability in a functional ELISA. Immobilized CD152 at 2 μg/ml can bind Anti-CD152 rabbit monoclonal antibody (CSB-RA213310A0HU), the EC₅₀ of human CD152 protein is 27.14-34.82 ng/ml.

FACS assay shows that Human TIGIT can bind to 293F cell overexpressing human CD155

Measured by its binding ability in a functional ELISA. Immobilized NRG1 (CSB-MP016077HU1(F6)) at 2 μg/ml can bind human ERBB3, the EC₅₀ is 12.32-15.74 ng/ml.

Measured by its binding ability in a functional ELISA. Immobilized MET at 2 μg/ml can bind Anti-MET recombinant antibody, the EC₅₀ is 2.379-3.094 ng/ml.

Overlay Peak curve showing THP-1 cells surface stained with CSB-RA004936MA1HU (red line) at 1:100.

Overlay Peak curve showing JK cells surface stained with CSB-RA006163MA1HU (red line) at 1:50.

Untransfected KATO3 cells surface (green line), transfected Human CLDN18.2 KATO3 stable cells surface (red line) and transfected.

T84 cells were stained with Human IgG (green line) and anti-GUCY2C antibody (red line) (2µg/1*10⁶ cells),