Purified anti-human IL-33 Antibody

Pricing & Availability
Poly5163 (See other available formats)
Regulatory Status
Other Names
Goat Polyclonal Ig
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516301 100 µg $248
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IL-33, also known as NFHEV and DVS 27, is a 30 kD proinflammatory protein that belongs to IL-1 superfamily. IL-33 is constitutively expressed in smooth muscle and airway epithelia. It is upregulated in arterial smooth muscle, dermal fibroblasts, and keratinocytes following IL-1α or IL-1β stimulation. IL-33 interacts with IL1RL1/ST2 receptor and IL-1 receptor accessory protein (IL1RAP) in order to activate intracellular molecules in the NF-κB and MAP kinase signaling pathways that drive production of type 2 cytokines (e.g. IL-5 and IL-13) from polarized Th2 cells. Recombinant IL-33 has been shown to enhance Th2-associated immune responses and potently increase mast cell proliferation and cytokine production.

Product Details
Technical data sheet

Product Details

Verified Reactivity
Antibody Type
Host Species
Human IL-33, amino acids Ser112-Thr270 (Accession# NM_ 033439) was expressed in E. coli.
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
The antibody was purified by antigen affinity chromatography.
0.5 mg/ml
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C. Do not freeze.

ELISA Capture - Quality tested

Recommended Usage

Each lot of this antibody is quality control tested by ELISA assay. For use as an ELISA capture antibody, a concentration range of 0.25-1 µg/ml is recommended. It is recommended that the reagent be titrated for optimal performance. To obtain a linear standard curve, serial dilutions of IL-33 recombinant protein ranging from 1000-15.6 pg/ml are recommended.

Application Notes

ELISA Capture: The purified Poly5163 antibody is useful as a capture antibody in a sandwich ELISA assay, when used in conjunction with the biotinylated Poly5163 antibody (Cat. No. 516303) as the detecting antibody and recombinant human IL-33 (Cat. No. 581809) as the standard.

AB_2561331 (BioLegend Cat. No. 516301)

Antigen Details

270 aa with predicted molecular weight of 30 kD.
Full length IL-33 localizes to the nucleus in HUVECs and transfectants C-terminal fragment, corresponding mature IL-33 is secreted.
Cytokine that binds to and signals through IL1RL1/ST2 and its stimulation recruits MYD88, IRAK1, IRAK4, and TRAF6, followed by phosphorylation of MAPK3/ERK1 and/or MAPK1/ERK2, MAPK14, and MAPK8. Induces T helper type 2-associated cytokines.
Binding to IL1RL1/ST2 and IL-1 receptor accessory protein.
In sandwich ELISA, no cross-reactivity with mouse or rat IL-33.
Biology Area
Molecular Family
Antigen References

1. Lohning M, et al. 1998. P. Natl. Acad. Sci. USA 95:693.
2. Onda H, et al. 1999. J. Cerebr. Blood F. Met. 19:1279.
3. Schmitz J, et al. 2005. Immunity 23:479.
4. McLaren JE, et al. 2010. J. Immunol. 185:1222.

Gene ID
90865 View all products for this Gene ID
View information about IL-33 on UniProt.org

Related FAQs

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Other Formats

View All IL-33 Reagents Request Custom Conjugation
Description Clone Applications
Purified anti-human IL-33 Poly5163 ELISA Capture
Biotin anti-human IL-33 Poly5163 ELISA Detection
Go To Top Version: 1    Revision Date: 11/30/2012

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  • Purified anti-human IL-33

  • Biotin anti-human IL-33


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