CD19
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Primary Accession | P15391-1 |
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Species | Human |
Sequence | Pro20-Lys291 |
Purity | > 95% as determined by Bis-Tris PAGE > 95% as determined by HPLC |
Endotoxin Level | Less than 1EU per µg by the LAL method. |
Expression System | HEK293 |
Theoretical Molecular Weight | 60.1 kDa |
Formulation | Lyophilized from a 0.22 µm filtered solution in PBS, (pH 7.4). |
Reconstitution | Centrifuge the tube before opening. Reconstituting to a concentration more than 100 µg/ml is recommended. Dissolve the lyophilized protein in distilled water. |
Storage & Stability | Upon receiving, the product remains stable up to 6 months at -20 °C or below. Upon reconstitution, the product should be stable for 3 months at -80 °C. Avoid repeated freeze-thaw cycles. |
Target Background | CD19 is a B-lineage-specific transmembrane glycoprotein, the expression of which is maintained on more than 95% B-cell malignancies. This strict lineage restriction makes CD19 an ideal target for immune therapies using chimeric antigen receptors (CARs). T cells engineered to express a chimeric antigen receptor (CAR) against CD19 have recently been FDA approved for the treatment of relapsed or refractory large B-cell lymphoma. Despite the success and curative potential of CD19 CAR T cells, several reports describing disease relapse due to antigen loss are now emerging. |
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