Ultra-LEAF™ Purified anti-human IL-4 Antibody

Pricing & Availability
Clone
8D4-8 (See other available formats)
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)
Isotype
Mouse IgG1, κ
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Product Citations
publications
Cat # Size Price Quantity Avail. Save
500719 100 µg 188€
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500720 1 mg 524€
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Description

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. The 8D4-8 antibody can neutralize the bioactivity of natural or recombinant IL-4.

Product Details
Technical Data Sheet (pdf)

Product Details

Reactivity
Human, Cross-Reactivity: Chimpanzee, Baboon, Cynomolgus, Rhesus
Antibody Type
Monoclonal
Host Species
Mouse
Immunogen
Yeast-expressed, recombinant human IL-4
Formulation
0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative. Endotoxin level is <0.01 EU/µg of the protein (<0.001 ng/µg of the protein) as determined by the LAL test.
Preparation
The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
Concentration
1.0 mg/ml
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C. This Ultra-LEAF™ solution contains no preservative; handle under aseptic conditions.
Application

ELISA Capture - Quality tested
ELISPOT Capture, Neut, ICFC, IHC, IP - Reported in literature

Recommended Usage

Each lot of this antibody is quality control tested by ELISA assay. For sandwich ELISA capture applications, a concentration range of 1.0 - 8.0 µg/ml is recommended when used in conjunction with biotinylated MP4-25D2 (Cat. No. 500803) as the detection antibody, and recombinant human IL-4 (ELISA Std.) (Cat. No. 571809) as the protein standard. It is recommended that the reagents be titrated for optimal performance for each application.

Application Notes

Additional reported applications (for the relevant formats) include: ELISPOT Capture, neutralization, intracellular staining for flow cytometry, immunohistochemical staining, and immunoprecipitation.

Application References

(PubMed link indicates BioLegend citation)
  1. Bird, C., et al. 1991. Cytokine. 3:562.
  2. Prussin, C., et al. 1995. J. Immunol. Meth. 188:117.
  3. Hickie, I., et al. 2001. Twin Res. 4:94.
  4. Heeger, P., et al. 1999. J. Immunol. 163:2267.
  5. Jason, J., et al. 1999. Clin. Diagn. Lab Immunol. 6:73.
  6. Andersson, U., et al. 1999. Detection and quantification of gene expression. New York:Springer-Verlag.
  7. Gong, G, et al. 2009. Blood 113:837. PubMed
  8. Yoshino, N., et al. 2000. Exp. Anim. (Tokyo) 49:97. (FC)

Antigen Details

Structure
Cytokine; 15-19 kD (Mammalian)
Bioactivity
Differentiation of naïve 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
Cell Sources
Mast cells, T cells, bone marrow stromal cells
Cell Targets
B cells, T cells, monocytes, endothelial cells, fibroblasts
Receptors
Heterodimer IL-4Rα (CD124); γ-subunit (CD132) in common with IL-2R, IL-7R, IL-13R, IL-15R
Cell Type
Tregs
Biology Area
Cell Biology, Immunology, Neuroinflammation, Neuroscience
Molecular Family
Cytokines/Chemokines
Antigen References

1. Fitzgerald, K., et al. Eds. 2001. The Cytokine FactsBook. 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.

Regulation
Upregulated by IL-2, platelet activating factor; downregulated by TGF-β
Gene ID
3565 View all products for this Gene ID
UniProt
View information about IL-4 on UniProt.org

Related FAQs

Does BioLegend test each LEAF™ antibody by functional assay?

No, BioLegend does not test LEAF™ antibodies by functional assays unless otherwise indicated. Due to the possible complexities and variations of uses of biofunctional antibodies in different assays and because of the large product portfolio, BioLegend does not currently perform functional assays as a routine QC for the antibodies. However, we do provide references in which the antibodies were used for functional assays and we do perform QC to verify the specificity and quality of the antibody based on our strict specification criteria.

Do you guarantee that your antibodies are totally pathogen free?

BioLegend does not test for pathogens in-house aside from the GoInVivo™ product line. However, upon request, this can be tested on a custom basis with an outside, independent laboratory.

Does BioLegend test each LEAF™ antibody for potential pathogens?

No, BioLegend does not test for pathogens in-house unless otherwise indicated.  However, we can recommend an outside vendor to perform this testing as needed.

Have you tested this LEAF™/Ultra-LEAF™ antibody for in vivo or in vitro applications?

We don't test our antibodies for in vivo or in vitro applications unless otherwise indicated. Depending on the product, the TDS may describe literature supporting usage of a particular product for bioassay. It may be best to further consult the literature to find clone specific information.

Go To Top Version: 2    Revision Date: 05/02/2019

For research use only. Not for diagnostic use. Not for resale. BioLegend will not be held responsible for patent infringement or other violations that may occur with the use of our products.

 

*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, www.biolegend.com/ordering#license). BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products, reverse engineer functionally similar materials, or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial use.

 

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Toll-Free Phone: 1-877-Bio-Legend (246-5343) Phone: (858) 768-5800 Fax: (877) 455-9587

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