Bovine IL-4 Antibody

Catalog #: MAB2469
1 Citation 1 Review Datasheet

Catalog #	Availability	Size / Price	Qty
MAB2469
MAB2469-SP

Detection of Bovine IL‑4 by Western Blot.

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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Bovine IL-4 Antibody Summary

Species Reactivity

Bovine

Specificity

Detects bovine IL-4 in direct ELISAs and Western blots. In direct ELISAs, less than 25% cross-reactivity with recombinant porcine, canine, rhesus, cotton rat, equine, or rabbit IL-4 is observed and no cross-reactivity with recombinant human, mouse, rat, or feline IL-4 is observed.

Source

Monoclonal Mouse IgG_2B Clone # 701214

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

E. coli-derived recombinant bovine IL-4
His25-Cys135
Accession # P30367.2

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.

Applications

Recommended Concentration

Sample

Western Blot

2 µg/mL

See below

Immunocytochemistry

8-25 µg/mL

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot

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Detection of Bovine IL‑4 by Western Blot. Western blot shows Recombinant Bovine IL-4 (Catalog # 2469-BL) (10 ng/lane). PVDF membrane was probed with 2 µg/mL of Mouse Anti-Bovine IL-4 Monoclonal Antibody (Catalog # MAB2469) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). A specific band was detected for IL-4 at approximately 12 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Immunocytochemistry

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IL‑4 in Bovine PBMCs. IL-4 was detected in immersion fixed bovine peripheral blood mononuclear cells (PBMCs) stimulated with concanavalin A using Mouse Anti-Bovine IL-4 Monoclonal Antibody (Catalog # MAB2469) at 25 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). Specific staining was localized to cell cytoplasm. View our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Preparation and Storage

Reconstitution

Sterile PBS to a final concentration of 0.5 mg/mL.

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.

Background: IL-4

Interleukin-4 (IL-4), also known as B cell-stimulatory factor-1, is a monomeric, approximately 13 kDa‑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). Bovine IL-4 is synthesized with a 24 amino acid (aa) signal sequence. Alternate splicing generates two additional isoforms with internal deletions (5). Mature bovine IL-4 shares 60%, 91%, 93%, 78%, 55%, 39%, and 41% aa sequence identity with equine, goat, ovine, porcine, human, mouse, and rat IL-4, respectively. IL-4 exerts its effects through two receptor complexes (6, 7). 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 nonhematopoietic 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 IgE in 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 (8‑11). IL-4 plays a dominant role in the development of allergic inflammation and asthma (10, 12).

References

Benczik, M. and S.L. Gaffen (2004) Immunol. Invest. 33:109.
Chomarat, P. and J. Banchereau (1998) Int. Rev. Immunol. 17:1.
Heussler, V.T. et al. (1992) Gene 114:273.
Redfield, C. et al. (1991) Biochemistry 30:11029.
Waldvogel, A.S. et al. (2004) Vet. Immunol. Immunopathol. 97:53.
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

Entrez Gene IDs

3565 (Human); 16189 (Mouse); 287287 (Rat); 397225 (Porcine); 280824 (Bovine); 403785 (Canine); 574281 (Primate); 100302454 (Rabbit)

Alternate Names

B cell growth factor 1; BCDF; B-cell stimulatory factor 1; BCGF1; BCGF-1; binetrakin; BSF1; BSF-1; IL4; IL-4; IL-4B_cell stimulatory factor 1; IL4E12; interleukin 4; interleukin-4; Lymphocyte stimulatory factor 1; MGC79402; pitrakinra

Product Datasheets

Product Datasheet

Related Research Areas

Citation for Bovine IL-4 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

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