CD19 (1D3) Rat mAb (redFluor™ 710 Conjugate) #72880
- F
Supporting Data
| REACTIVITY | M |
| SENSITIVITY | Endogenous |
| MW (kDa) | |
| Source/Isotype | Rat IgG2a kappa |
Application Key:
- F-Flow Cytometry
Species Cross-Reactivity Key:
- M-Mouse
Product Information
Product Description
Product Usage Information
For optimal flow cytometry results, we recommend 0.125 μg of antibody per test.
| Application | Dilution |
|---|---|
| Flow Cytometry (Fixed/Permeabilized) | 1:160 |
| Flow Cytometry (Live) | 1:160 |
Storage
Protocol
Specificity / Sensitivity
CD19 (1D3) Rat mAb (redFluor™ 710 Conjugate) recognizes endogenous levels of total mouse CD19 protein. This antibody detects an epitope within the extracellular domain.
Species Reactivity:
Mouse
Source / Purification
This monoclonal antibody was purified from tissue culture supernatant via affinity chromatography. The purified antibody was conjugated under optimal conditions, with unreacted dye removed from the preparation.
Background
CD19 is a 95 kDa coreceptor which amplifies the signaling cascade in B cells (1). On the B cell surface, CD19 associates with CD21, CD81, and Leu-13 to exert its function. The cytoplasmic tail of CD19 has nine conserved tyrosine residues playing critical roles in CD19 mediated function by coupling signaling molecules to the receptor (1). After B cell receptor or CD19 ligation, Tyr531 and Tyr500 of CD19 are progressively phosphorylated. This phosphorylation enables the coupling of PI3 kinase and Src family tyrosine kinase to CD19 and activates the PI3K and Src signaling pathways (2,3). Coligation of B cell receptor and CD19 also promotes Tyr409 phosphorylation in CD19. The phosphorylation at these sites enables its binding to Vav and mediates elevated intracellular calcium response, as well as the JNK pathway (4,5).
The 1D3 clone is a widely used as a phenotypic marker for CD19 expression on the surface of murine B cells and subsets of dendritic cells.
Limited Uses
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