IL-13 is a 17 kDa immunoregulatory cytokine that plays a key role in the pathogenesis of allergic asthma and atopy. It is secreted by Th1 and Th2 CD4+ T cells, NK cells, visceral smooth muscle cells, eosinophils, mast cells, and basophils (1-3). IL-13 circulates as a monomer with two internal disulfide bonds that contribute to a bundled four alpha -helix configuration (4, 5). Mature human IL-13 shares 57%, 59%, and 94% amino acid sequence identity with mouse, rat, and rhesus IL-13, respectively. Despite the low homology, it exhibits cross-species activity between human, mouse, and rat (6, 7). IL-13 has diverse activities on numerous cell types (8). On macrophages, IL-13 suppresses the production of proinflammatory cytokines and other cytotoxic substances. On B cells, IL-13 induces immunoglobulin class switching to IgE, upregulates the expression of MHC class II, CD71, CD72, and CD23, and costimulates proliferation. IL-13 upregulates IL-6 while downregulating IL-1 and TNF-alpha production by fibroblasts and endothelial cells. IL-13 binds with low affinity to IL-13 R alpha 1, triggering IL-13 R alpha 1 association with IL-4 R alpha. This high affinity receptor complex also functions as the type 2 IL-4 receptor complex (9, 10). Additionally, IL-13 binds with high affinity to IL-13 R alpha 2 which is expressed intracellularly, on the cell surface, and as a soluble molecule (11-14). IL-13 R alpha 2 regulates the bioavailability of both IL-13 and IL-4 and is over-expressed in glioma and several bronchial pathologies (10, 15, 16). Compared to wild type IL-13, the atopy-associated R110Q variant of IL-13 elicits increased responsiveness from eosinophils that express low levels of IL-13 R alpha 2 (17).
Key Product Details
Validated by
Biological Validation
Species Reactivity
Validated:
Human
Cited:
Human, Mouse
Applications
Validated:
ELISA Capture (Matched Antibody Pair), Neutralization, Flow Cytometry, CyTOF-ready
Cited:
Immunoassay, Neutralization, ELISA Capture, ELISA Development, Functional Assay
Label
Unconjugated
Antibody Source
Monoclonal Mouse IgG1 Clone # 32116
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Product Specifications
Immunogen
E. coli-derived recombinant human IL-13
Gly35-Asn146
Accession # P35225
Gly35-Asn146
Accession # P35225
Specificity
Detects human IL-13 in direct ELISAs.
Clonality
Monoclonal
Host
Mouse
Isotype
IgG1
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.
Scientific Data Images for Human IL-13 Antibody (32116)
Detection of IL‑13 in Human PBMCs by Flow Cytometry.
Human peripheral blood mononuclear cells (PBMCs) treated with 5 ng/mL Recombinant Human IL-4 (Catalog # 204-IL) and 10 µg/mL Goat Anti-Human IFN-gamma Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-285-NA) for 3 days were stained with Mouse Anti-Human IL-13 Monoclonal Antibody (Catalog # MAB213) followed by Allophycocyanin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0101B) and Mouse Anti-Human CD4 PE-conjugated Monoclonal Antibody (Catalog # FAB3791P). Quadrant markers were set based on control antibody staining (Catalog # MAB002).Cell Proliferation Induced by IL‑13 and Neutralization by Human IL‑13 Antibody.
Recombinant Human IL-13 (Catalog # 213-ILB) stimulates proliferation in the TF-1 human erythroleukemic cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human IL-13 (10 ng/mL) is neutralized (green line) by increasing concen-trations of Mouse Anti-Human IL-13 Monoclonal Antibody (Catalog # MAB213). The ND50 is typically 0.15-0.75 µg/mL.Human IL-13 ELISA Standard Curve
Recombinant Human IL‑13 (Catalog # 213-ILB) was serially diluted and captured by Mouse Anti-Human IL‑13 Monoclonal Antibody (Catalog # MAB213) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Human IL‑13 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-213-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)Applications for Human IL-13 Antibody (32116)
Application
Recommended Usage
CyTOF-ready
Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
Flow Cytometry
2.5 µg/106 cells
Sample: Human peripheral blood mononuclear cells (PBMCs) treated with Recombinant Human IL‑4 (Catalog # 204-IL) and Goat Anti-Human IFN‑ gamma Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-285-NA)
Sample: Human peripheral blood mononuclear cells (PBMCs) treated with Recombinant Human IL‑4 (Catalog # 204-IL) and Goat Anti-Human IFN‑ gamma Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-285-NA)
Neutralization
Measured by its ability to neutralize IL‑13-induced proliferation in the TF‑1 human erythroleukemic cell line. Kitamura, T. et al. (1989) J. Cell Physiol. 140:323. The Neutralization Dose (ND50) is typically 0.15-0.75 ug/mL in the presence of 10 ng/mL Recombinant Human IL‑13.
Human IL-13 Sandwich Immunoassay
Please Note: Optimal dilutions of this antibody should be experimentally determined.
Reviewed Applications
Read 2 reviews rated 5 using MAB213 in the following applications:
Flow Cytometry Panel Builder
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Save time and reduce costly mistakes by quickly finding compatible reagents using the Panel Builder Tool.
Advanced Features
- Spectra Viewer - Custom analysis of spectra from multiple fluorochromes
- Spillover Popups - Visualize the spectra of individual fluorochromes
- Antigen Density Selector - Match fluorochrome brightness with antigen density
Formulation, Preparation, and Storage
Purification
Protein A or G purified from hybridoma culture supernatant
Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
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Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Calculators
Background: IL-13
References
- Wills-Karp, M. (2004) Immunol. Rev. 202:175.
- Nakajima H. and K. Takatsu (2007) Int. Arch. Allergy Immunol. 142:265.
- McKenzie, A.N. et al. (1993) Proc. Natl. Acad. Sci. USA 90:3735.
- Moy, F.J. et al. (2001) J. Mol. Biol. 310:219.
- Eisenmesser, E.Z. et al. (2001) J. Mol. Biol. 310:231.
- Ruetten, H. and C. Thiemermann (1997) Shock 8:409.
- Lakkis, F.G. et al. (1997) Biochem. Biophys. Res. Commun. 235:529.
- Wynn, T.A. (2003) Annu. Rev. Immunol. 21:425.
- Andrews, A.L. et al. (2002) J. Biol. Chem. 277:46073.
- Tabata, Y. et al. (2007) Curr. Allergy Asthma Rep. 7:338.
- Chiaramonte, M.G. et al. (2003) J. Exp. Med. 197:687.
- Daines, M.O. and G.K. Hershey (2002) J. Biol. Chem. 227:10387.
- Matsumura, M. et al. (2007) Biochem. Biophys. Res. Commun. 360:464.
- Tabata, Y. et al. (2007) J. Immunol. 177:7905.
- Andrews, A.L. et al. (2006) J. Allergy Clin. Immunol. 118:858.
- Joshi, B.H. et al. (2006) Vitam. Horm. 74:479.
- Andrews, A-L. et al. (2007) J. Allergy Clin. Immunol. 120:91.
Long Name
Interleukin 13
Alternate Names
IL13, NC30, P600
Gene Symbol
IL13
UniProt
Additional IL-13 Products
Product Documents for Human IL-13 Antibody (32116)
Certificate of Analysis
To download a Certificate of Analysis, please enter a lot or batch number in the search box below.
Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Human IL-13 Antibody (32116)
For research use only
Citations for Human IL-13 Antibody (32116)
Customer Reviews for Human IL-13 Antibody (32116) (2)
5 out of 5
2 Customer Ratings
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Application: ELISASample Tested: EDTA PlasmaSpecies: HumanVerified Customer | Posted 01/18/2018
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