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Safety Data Sheet (SDS) PE Anti-rat IL-4 Antibody     Product Data Sheet (PDF)    
PE Anti-rat IL-4 Antibody
3159525 25 µg $95.00       
3159530 100 µg $245.00       
Clone: OX-81
Isotype: Mouse IgG1, κ
Reactivity: Rat
Immunogen: Recombinant rat IL-4
Formulation: Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
Preparation: The antibody was purified by affinity chromatography, and conjugated with PE under optimal conditions. The solution is free of unconjugated PE and unconjugated antibody.
Concentration: 0.2 mg/ml
Storage & Handling: The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.

ICFC - Quality tested

Recommended Usage:

Each lot of this antibody is quality control tested by intracellular immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤ 0.25 µg per 106 cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.


IL-4 is a pleiotropic cytokine that is produced by activated T cells, mast cells and basophils. IL-4 elicits many different biological responses, but has two dominant functions. The first is regulating differentiation of naïve CD4+ T cell to the Th2 type. Th2 cells produce IL-4, IL-5, IL-10 and IL-13, which tend to favor a humoral immune response while suppressing a cell-mediated immune response controlled by Th1 cells. The second is regulating IgE and IgG1 production by B cells

Other Names: Interleukin-4, Ia inducing factor (IaIF), B-cell stimulating factor-1 (BSF-1), Hodgkin's cell growth factor (HCGF), Mast cell growth factor-2 (MCGF-2), Macrophage fusion factor (MFF), T cell growth factor-2 (TCGF-2)
Structure: Cytokine, 14.9 kD
Distribution: Mast cells, T cells, bone marrow stromal cells
Function: Differentiation of naive CD4+ T cells to the Th2 type, proliferation/differentiation of activated B cells, expression of class II MHC antigens, and of low affinity IgE receptors in resting B cells
Ligand Receptor: Heterodimer IL-4Rα (CD124); γ-subunit (CD132) in common with IL-2R, IL-7R, IL-13R, IL-15R
Antigen References:

1. Fitzgerald K, et al. Eds. 2001. The Cytokine Facts Book. Academic Press San Diego.
2. Boulay J, et al. 1992. Curr. Opin. Immunol. 4:294.
3. Dullens H, et al. 1991. In vivo 5:567.
4. Paul W. 1991. Blood 77:1859.