Porcine IL-4 Biotinylated Antibody Summary
His25-Cys133
Accession # Q04745
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Applications
Porcine IL-4 Sandwich Immunoassay
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.
Preparation and Storage
- 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 - 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). Porcine IL-4 is synthesized with a 24 amino acid (aa) signal sequence. Mature porcine IL-4 shares 78%, 59%, 41%, and 41% aa sequence identity with bovine, human, mouse, and rat IL-4, respectively. Human IL-4 is active on porcine vascular endothelial cells (5). 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).
- Benczik, M. and S.L. Gaffen (2004) Immunol. Invest. 33:109.
- Chomarat, P. and J. Banchereau (1998) Int. Rev. Immunol. 17:1.
- Bailey, M. et al. (1993) Biochim. Biophys. Acta 1171:328.
- Redfield, C. et al. (1991) Biochemistry 30:11029.
- Stocker, C.J. et al. (2000) J. Immunol. 164:3309.
- 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.
Product Datasheets
Citations for Porcine IL-4 Biotinylated 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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Citations: Showing 1 - 3
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Development and validation of a multiplex fluorescent microsphere immunoassay assay for detection of porcine cytokines
Authors: SA Hall, SH Ison, C Owles, J Coe, DA Sandercock, AJ Zanella
MethodsX, 2019-05-17;6(0):1218-1227.
Species: Porcine
Sample Types: Tissue Homogenates
Applications: ELISA Detection -
Protective Role of Passively Transferred Maternal Cytokines against Bordetella pertussis Infection in Newborn Piglets
Authors: S Elahi, DR Thompson, J Van Kessel, LA Babiuk, V Gerdts
Infect. Immun., 2017-03-23;85(4):.
Species: Porcine
Sample Types: Serum
Applications: ELISA Development (Detection) -
Cytokine responses in gnotobiotic pigs after infection with virulent or attenuated human rotavirus.
Authors: Azevedo MS, Yuan L, Pouly S, Gonzales AM, Jeong KI, Nguyen TV, Saif LJ
J. Virol., 2006-01-01;80(1):372-82.
Species: Porcine
Sample Types: Whole Cells
Applications: ELISpot Development
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