The CD19 CAR mRNA encodes a chimeric antigen receptor (CAR) that specifically recognizes the CD19 antigen on B cells. This mRNA enables transient CAR expression in immune effector cells, such as T cells or NK cells, allowing them to target and eliminate CD19+ cells. The CAR typically includes an extracellular scFv specific to CD19, a hinge and transmembrane domain, and intracellular signaling domains (e.g., CD28 or 4-1BB and CD3ζ) for activation and persistence.
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| Form | Liquid |
| Concentration | 1mg/mL |
| Full mRNA length | 1789 nt |
| Full mRNA Molecular Weight | 578298 Da |
| Storage buffer | 1mM Sodium citrate, pH 6.5 |
| Storage condition | Store at -20°C for short term (<3 months), store at -80°C for long term. |
| Appearance | Clear and free of foreign particles |
| RNA Length | Expected size band detected |
| RNA Content | Target ± 5% |
| Integrity | ≥ 75% |
| OD260/OD280 | 1.70 ~ 2.30 |
| Capping Efficiency | ≥ 90% |
| Endotoxin | < 10 EU/mg |
| pH | Target ± 0.5 |
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NFAT Activation Assay (Luciferase) – CD19 CAR mRNA: Jurkat cells were transfected with CD19 CAR mRNA and subsequently co-incubated with NLAM cells expressing the CD19 antigen to assess CAR-mediated signaling. Activation of the CAR triggered the NFAT signaling pathway, leading to luciferase expression under NFAT-responsive promoter control. The resulting luminescence intensity served as a quantitative measure of NFAT activation — where higher luminescence indicates stronger CAR activation and higher binding affinity between the CD19 CAR and its antigen. This assay provides a functional readout of CAR engagement and signaling potency. |
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For laboratory research use only. Direct human use, including taking orally and injection and clinical use are forbidden.