Thermo Fisher Scientific CD19 Polyclonal Antibody
Rabbit polyclonal antibody against human and mouse CD19. Validated for Western blot at 1:2,000–1:5,000 dilution. Antigen affinity purified, supplied in PBS with 40% glycerol. Suitable for research on B cell signaling and leukemia studies.
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Applications and Tested Dilution
| Application | Tested Dilution |
|---|---|
| Western Blot (WB) | 1:2,000–1:5,000 |
Product Specifications
| Category | Details |
|---|---|
| Species Reactivity | Human, Mouse |
| Host / Isotype | Rabbit / IgG |
| Class | Polyclonal |
| Type | Antibody |
| Immunogen | Synthetic peptide corresponding to Human CD19 (aa 131–180) |
| Conjugate | Unconjugated |
| Form | Liquid |
| Concentration | 1 mg/mL |
| Purification | Antigen affinity chromatography |
| Storage Buffer | PBS (pH 7.4) with 40% Glycerol, 0.2% BSA |
| Contains | 0.05% Sodium azide |
| Storage Conditions | Store at 4°C short term; for long-term, store at -20°C. Avoid freeze/thaw cycles. |
| Shipping Conditions | Ambient (domestic); Wet ice (international) |
| RRID | AB_2802760 |
Target Information
CD19 is a member of the immunoglobulin superfamily with two Ig-like domains. It is expressed on 100% of peripheral B cells, as defined by kappa or lambda light chain expression. CD19 can also be expressed on certain myeloid leukemia cells, particularly those of monocytic lineage.
CD19 functions as a signal-amplifying coreceptor for the B cell receptor (BCR), lowering the threshold for antigen receptor-dependent stimulation. It can also signal independently of BCR co-ligation, serving as a central regulatory component for multiple signaling pathways. Mutations in the CD19 gene may lead to hypogammaglobulinemia, while overexpression can cause B cell hyperactivity.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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