Anti-CD19 CAR negative control/NFAT-luciferase reporter Jurkat cell line is a double stable cell line expressing anti-CD19 CAR negative control and NFAT-luciferase reporter. The anti-CD19 CAR negative control consists of anti-CD19 scFv linked to the CD28 transmembrane motif without any intracellular signaling domains. The reporter cell line has been validated for anti- CD19 expression by FACS, while the stimulation by target cells including CD19/CHO recombinant cell line has not activated the luciferase reporter gene in this cell line. The cell line can be used for the negative control of anti-CD19 CAR/Jurkat-NFAT cell line (BPS Bioscience, #79853).