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ABflo® 450 Rabbit anti-Human/Monkey CD19 mAb (100 T)
| Reactivity: | Human, Monkey |
| Applications: | FC |
| Host Species: | Rabbit |
| Isotype: | IgG |
| Clonality: | Monoclonal Antibody |
| Conjugation: | ABflo® 450. Ex:406nm. Em:445nm. |
| Gene Name: | CD19 molecule |
| Gene Symbol: | CD19 |
| Synonyms: | N/A |
| Gene ID: | 102145514 |
| Immunogen: | Recombinant fusion protein containing a sequence corresponding to amino acids 20-292 of monkey CD19 (XP_005591597.1). |
| Dilution: | FC,5 μl per 10^6 cells in 100 μl volume |
| Purification Method: | Affinity purification |
| Concentration: | 0.04 mg/ml |
| Buffer: | PBS with 0.09% Sodium azide,0.2% BSA, pH7.3. |
| Storage: | Store at -20°C. Avoid freeze / thaw cycles. |
| Documents: | Manual-CD19 antibody |
Background
This gene encodes a member of the immunoglobulin gene superfamily. Expression of this cell surface protein is restricted to B cell lymphocytes. This protein is a reliable marker for pre-B cells but its expression diminishes during terminal B cell differentiation in antibody secreting plasma cells. The protein has two N-terminal extracellular Ig-like domains separated by a non-Ig-like domain, a hydrophobic transmembrane domain, and a large C-terminal cytoplasmic domain. This protein forms a complex with several membrane proteins including complement receptor type 2 (CD21) and tetraspanin (CD81) and this complex reduces the threshold for antigen-initiated B cell activation. Activation of this B-cell antigen receptor complex activates the phosphatidylinositol 3-kinase signalling pathway and the subsequent release of intracellular stores of calcium ions. This protein is a target of chimeric antigen receptor (CAR) T-cells used in the treatment of lymphoblastic leukemia. Mutations in this gene are associated with the disease common variable immunodeficiency 3 (CVID3) which results in a failure of B-cell differentiation and impaired secretion of immunoglobulins. CVID3 is characterized by hypogammaglobulinemia, an inability to mount an antibody response to antigen, and recurrent bacterial infections. Alternative splicing results in multiple transcript variants encoding distinct isoforms.
Images
 | Flow cytometry: 1×10^6 Human PBMC were surface-stained with ABflo® 450 Rabbit anti-Human/Monkey CD19 mAb (A27286,5 μl/Test,orange line) or ABflo® 450 Rabbit IgG isotype control (5 μl/Test,blue line). Non-fluorescently stained cells were used as blank control (red line). Cells in the lymphocyte gate were used for analysis. |
 | Flow cytometry: 1×10^6 Human PBMC were surface-stained with ABflo® 450 Rabbit IgG isotype control (5 μl/Test,left) or ABflo® 450 Rabbit anti-Human/Monkey CD19 mAb (A27286,5 μl/Test,right). Cells in the lymphocyte gate were used for analysis. |
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