Purity

Anti-CD19 Reference Antibody (tafasitamab) on SDS-PAGE under reducing (R) condition. The purity of the protein is greater than 95%.

SEC-HPLC

The purity of Anti-CD19 Reference Antibody (tafasitamab) is 98.59%, determined by SEC-HPLC.

ELISA

Immobilized human CD19 (20 291) Protein, His Tag at 2 μg/mL can bind Anti-CD19 Reference Antibody (tafasitamab), EC50=0.0904 μg/mL.

Human CD19 HEK293 cells were stained with Anti-CD19 Reference Antibody (tafasitamab) and negative control protein respectively, washed and then followed by PE and analyzed with FACS, EC50=0.085 μg/mL.

-25~-15℃保存，有效期1年。