Key Product Details

Species Reactivity

Validated:

Rat

Cited:

Rat

Applications

Validated:

Western Blot, ELISA Detection (Matched Antibody Pair)

Cited:

ELISA Development

Label

Biotin

Antibody Source

Polyclonal Goat IgG
View all IL-4 Primary Antibodies »

Product Specifications

Immunogen

E. coli-derived recombinant rat IL‑4
Cys25-Ser147
Accession # P20096

Specificity

Detects rat IL-4 in ELISAs and Western blots. In sandwich immunoassays, less than 0.05% cross-reactivity with recombinant mouse IL-4 and recombinant human IL-4 is observed.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Applications for Rat IL‑4 Biotinylated Antibody

Application
Recommended Usage

Western Blot

0.1 µg/mL
Sample: Recombinant Rat IL‑4 (Catalog # 504-RL)

Rat IL-4 Sandwich Immunoassay

ELISA Detection (Matched Antibody Pair)
Recommended Concentration: 0.1-0.4 µg/mL
Use in combination with these reagents:
  • Capture Reagent: Rat IL‑4 Antibody (Catalog # MAB504)
  • Standard: Recombinant Rat IL-4 Protein (Catalog # 504-RL)
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Reviewed Applications

Read 1 review rated 5 using BAF504 in the following applications:

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS.

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.

Shipping

The product is shipped at ambient temperature. Upon receipt, store it 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

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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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). Rat IL-4 is synthesized with a 24 amino acid (aa) signal sequence. Mature rat IL-4 shares 41%, 43%, and 59% aa sequence identity with bovine, human, and mouse 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 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 IgG1 and IgE in rodent 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).

References

  1. Benczik, M. and S.L. Gaffen (2004) Immunol. Invest. 33:109.
  2. Chomarat, P. and J. Banchereau (1998) Int. Rev. Immunol. 17:1.
  3. McKnight, A.J. et al. (1991) Eur. J. Immunol. 21:1187.
  4. Redfield, C. et al. (1991) Biochemistry 30:11029.
  5. Ramirez, F. et al. (1988) J. Immunol. Meth. 221:141.
  6. Leitenberg, D. and T.L. Feldbush (1988) Cell. Immunol. 111:451.
  7. Mosman, T.R. et al. (1987) J. Immunol. 138:1813.
  8. Mueller, T.D. et al. (2002) Biochim. Biophys. Acta 1592:237.
  9. Nelms, K. et al. (1999) Annu. Rev. Immunol. 17:701.
  10. Paludan, S.R. (1998) Scand. J. Immunol. 48:459.
  11. Corthay, A. (2006) Scand. J. Immunol. 64:93.
  12. Ryan, J.J. et al. (2007) Crit. Rev. Immunol. 27:15.
  13. Grone, A. (2002) Vet. Immunol. Immunopathol. 88:1.
  14. 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

3565 (Human); 16189 (Mouse); 287287 (Rat); 397225 (Porcine); 280824 (Bovine); 403785 (Canine); 751514 (Feline); 574281 (Primate); 100302454 (Rabbit)

Gene Symbol

IL4

UniProt

P20096

Additional IL-4 Products

Product Documents for Rat IL‑4 Biotinylated 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.

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Product Specific Notices for Rat IL‑4 Biotinylated Antibody

For research use only

Citations for Rat IL‑4 Biotinylated Antibody

Customer Reviews for Rat IL‑4 Biotinylated Antibody (1)

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  • Rat IL-4 Biotinylated Antibody
    Name: Anonymous
    Application: ELISA
    Sample Tested: Serum
    Species: Rat
    Verified Customer | Posted 11/08/2017
    This antibody was used as the detection paired with MAB504 as a capture in an ELISA to measure rat IL-4. Both antibodies worked well in this application.
    Rat IL‑4 Biotinylated Antibody BAF504

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