2e5 of transient transfected anti-CD19 ScFv CAR-293 cells were stained with 0.01ug Alexa Fluor 647 Labeled- CD19 Fc Chimera Protein, Human, (Cat. No. UA011229) and unlable respectively (Fig. C and B), and non-transfected 293 cells were used as a control (Fig. A). Alexa Fluor 647 signal was used to evaluate the binding activity. 2e5 of transient transfected anti- CD19 ScFv CAR-293 cells were stained with 0.01ug CD19 Fc Chimera Protein, Human (Cat. No. UA010042) (Fig. D). APC signal was used to evaluate the binding activity. 2e5 of transient transfected anti- CD19 ScFv CAR-293 cells were stained with isotype and G4S Linker-Alexa Fluor® 488 (Fig. E and F). Alexa Fluor® 488 signal was used to evaluate the binding activity.
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