Interleukin-4 (IL-4), also known as B cell-stimulatory factor-1, is a monomeric, approximately 13-18 kDa Th2 cytokine that shows pleiotropic effects during immune responses (1‑3). It is a glycosylated polypeptide that contains three intrachain disulfide bridges and adopts a bundled four alpha -helix structure (4). Human IL-4 is synthesized with a 24 aa signal sequence. Alternate splicing generates an isoform with a 16 aa internal deletion. Mature human IL-4 shares 55%, 39%, and 43% aa sequence identity with bovine, mouse, and rat IL-4, respectively. Human, mouse, and rat IL-4 are species-specific in their activities (5-7). IL-4 exerts its effects through two receptor complexes (8, 9). The type I receptor, which is expressed on hematopoietic cells, is a heterodimer of the ligand binding IL-4 R alpha and the common gamma chain (a shared subunit of the receptors for IL-2, -7, -9, -15, and -21). The type II receptor on non-hematopoietic cells consists of IL-4 R alpha and IL-13 R alpha 1. The type II receptor also transduces IL-13 mediated signals. IL-4 is primarily expressed by Th2-biased CD4+ T cells, mast cells, basophils, and eosinophils (1, 2). It promotes cell proliferation, survival, and immunoglobulin class switch to IgG4 and IgE in human B cells, acquisition of the Th2 phenotype by naïve CD4+ T cells, priming and chemotaxis of mast cells, eosinophils, and basophils, and the proliferation and activation of epithelial cells (10-13). IL-4 plays a dominant role in the development of allergic inflammation and asthma (12, 14).
Key Product Details
Species Reactivity
Validated:
Human
Cited:
Human, Zebrafish
Applications
Validated:
Western Blot, Neutralization
Cited:
Western Blot, Neutralization, Flow Cytometry, Bioassay, Blocking, Differentiation, In vivo assay, Functional Assay, Stimulation
Label
Unconjugated
Antibody Source
Monoclonal Mouse IgG2B Clone # 34019
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Product Specifications
Immunogen
E. coli-derived recombinant human IL‑4
His25-Ser153
Accession # P05112
His25-Ser153
Accession # P05112
Specificity
Detects human IL-4 in Western blots. In Western blots, no cross-reactivity with recombinant mouse IL‑4, recombinant porcine IL‑4, recombinant cotton rat IL‑4, recombinant rat IL‑4, or recombinant human IL‑13 is observed.
Clonality
Monoclonal
Host
Mouse
Isotype
IgG2B
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.
Scientific Data Images for Human IL‑4 Antibody
Cell Proliferation Induced by IL‑4 and Neutralization by Human IL‑4 Antibody.
Recombinant Human IL-4 (Catalog # 204-IL) stimulates proliferation in the TF-1 human erythroleukemic cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human IL-4 (0.5 ng/mL) is neutralized (green line) by increasing concentrations of Mouse Anti-Human IL-4 Monoclonal Antibody (Catalog # MAB204). The ND50 is typically 0.5-1.5 µg/mL.Detection of IL-4 by Western Blot
IL-12 does not inhibit 1,25(OH)2D3 production or VDR expression and function in CD4+ T cells. Relative CYP27B1 (A), VDR (C), and CYP24A1 (E) expression in T cells activated for 72 h in the presence of 100 nM 25(OH)D3 and the indicated concentration of IL-12. Data are normalized to activated T cells incubated with 100 nM 25(OH)D3 in the absence of IL-12 (mean + SEM, n ≥ 6). (B) 1,25(OH)2D3 production in T cells activated for 72 h in the presence of 100 nM 25(OH)D3 and the indicated concentration of IL-12 (mean + SEM, n ≥ 4). (D) Representative Western blot (lower panel) and quantification (upper panel) of VDR with GAPDH as loading control from T cells activated for 72 h in the presence of 100 nM 25(OH)D3 and in the presence or absence of 10 ng/ml IL-12 (mean + SEM, n = 4). Western blots including protein ladder are shown in the Figure S1 in Supplementary Material. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/28620394), licensed under a CC-BY license. Not internally tested by R&D Systems.Applications for Human IL‑4 Antibody
Application
Recommended Usage
Western Blot
1 µg/mL
Sample: Recombinant Human IL‑4 (Catalog # 204-IL)
Sample: Recombinant Human IL‑4 (Catalog # 204-IL)
Neutralization
Measured by its ability to neutralize IL‑4-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 0.5-1.5 µg/mL in the presence of 0.5 ng/mL Recombinant Human IL‑4.
Reviewed Applications
Read 2 reviews rated 4 using MAB204 in the following applications:
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-4
References
- Benczik, M. and S.L. Gaffen (2004) Immunol. Invest. 33:109.
- Chomarat, P. and J. Banchereau (1998) Int. Rev. Immunol. 17:1.
- Yokota, T. et al. (1986) Proc. Natl. Acad. Sci. USA 83:5894.
- Redfield, C. et al. (1991) Biochemistry 30:11029.
- Ramirez, F. et al. (1988) J. Immunol. Meth. 221:141.
- Leitenberg, D. and T.L. Feldbush (1988) Cell. Immunol. 111:451.
- Mosman, T.R. et al. (1987) J. Immunol. 138:1813.
- Mueller, T.D. et al. (2002) Biochim. Biophys. Acta 1592:237.
- Nelms, K. et al. (1999) Annu. Rev. Immunol. 17:701.
- Paludan, S.R. (1998) Scand. J. Immunol. 48:459.
- Corthay, A. (2006) Scand. J. Immunol. 64:93.
- Ryan, J.J. et al. (2007) Crit. Rev. Immunol. 27:15.
- Grone, A. (2002) Vet. Immunol. Immunopathol. 88:1.
- Rosenberg, H.F. et al. (2007) J. Allergy Clin. Immunol. 119:1303.
Long Name
Interleukin 4
Alternate Names
BCDF, BCGF-1, BCGF1, BSF-1, BSF1, IL4, IL4E12
Entrez Gene IDs
Gene Symbol
IL4
UniProt
Additional IL-4 Products
Product Documents for Human IL‑4 Antibody
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‑4 Antibody
For research use only
Related Research Areas
Citations for Human IL‑4 Antibody
Customer Reviews for Human IL‑4 Antibody (2)
4 out of 5
2 Customer Ratings
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Application: MicroarraySample Tested: EDTA PlasmaSpecies: HumanVerified Customer | Posted 12/06/2019Antibody was printed on custom arrays and incubated with fluorescently labeled human EDTA plasma
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Application: ELISASample Tested: T cellsSpecies: Human and RatVerified Customer | Posted 12/03/2017
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- Cellular Response to Hypoxia Protocols
- R&D Systems Quality Control Western Blot Protocol
- Troubleshooting Guide: Western Blot Figures
- Western Blot Conditions
- Western Blot Protocol
- Western Blot Protocol for Cell Lysates
- Western Blot Troubleshooting
- Western Blot Troubleshooting Guide
- View all Protocols, Troubleshooting, Illustrated assays and Webinars
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