Recombinant Equine IL-1 beta/ IL-1F2 (Catalog # 3340-EL) stimulates proliferation in the D10.G4.1 mouse helper T cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Equine IL-1 beta/IL-1F2 (100 pg/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Equine IL-1 beta/IL-1F2 Antigen Affinity-purified Poly-clonal Antibody (Catalog # AF3340). The ND₅₀ is typically 0.05-0.25 µg/mL.

IL‑1 beta/IL‑1F2 in Equine PBMCs.

IL-1 beta/IL-1F2 was detected in immersion fixed equine peripheral blood mononuclear cells (PBMCs) using Goat Anti-Equine IL-1 beta/IL-1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3340) 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 cytoplasm. View our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Applications for Equine IL-1 beta/IL-1F2 Antibody

Application

Recommended Usage

Immunocytochemistry

20-35 µg/mL
Sample: Immersion fixed equine peripheral blood mononuclear cells (PBMCs)

Western Blot

0.1 µg/mL
Sample: Recombinant Equine IL‑1 beta/IL‑1F2 (Catalog # 3340-EL)

Neutralization

Measured by its ability to neutralize IL‑1 beta/IL‑1F2-induced proliferation in the D10.G4.1 mouse helper T cell line. Symons, J. A. et al. (1987) in Lymphokines and Interferons, a Practical Approach. Clemens, M. J. et al. (eds): IRL Press. 272. The Neutralization Dose (ND₅₀) is typically 0.05-0.25 µg/mL in the presence of 100 pg/mL Recombinant Equine IL‑1 beta/IL‑1F2.

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

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.

Background: IL-1 beta/IL-1F2

IL-1 is a name that designates two pleiotropic cytokines, IL-1 alpha (IL-1F1) and IL-1 beta (IL-1F2), which are the products of distinct genes. IL-1 alpha and IL-1 beta are structurally related polypeptides that share approximately 27% amino acid (aa) identity in equine. Both proteins are produced by a wide variety of cells in response to inflammatory agents, infections, or microbial endotoxins. While IL-1 alpha and IL-1 beta are regulated independently, they bind to the same receptor and exert identical biological effects. IL-1 RI binds directly to IL-1 alpha or IL-1 beta and then associates with IL-1 R accessory protein (IL-1 R3/IL-1 R AcP) to form a high-affinity receptor complex that is competent for signal transduction. IL-1 RII has high affinity for IL-1 beta but functions as a decoy receptor and negative regulator of IL-1 beta activity. IL-1ra functions as a competitive antagonist by preventing IL-1 alpha and IL-1 beta from interacting with IL-1 RI (1-4). The equine IL-1 beta cDNA encodes a 268 aa precursor. A 115 aa propeptide is cleaved intracellularly by the cysteine protease IL-1 beta-converting enzyme (Caspase-1/ICE) to generate the active cytokine (5-7). An alternatively spliced form of equine IL-1 beta has a deletion which encompasses the Caspase-1 cleavage site and potentially results in a membrane-associated form (8). The 17 kDa mature equine IL-1 beta shares 65%-75% aa sequence identity with canine, cotton rat, feline, human, mouse, porcine, rat, and rhesus IL-1 beta.

References

Allan, S.M. et al. (2005) Nat. Rev. Immunol. 5:629.
Boraschi, D. and A. Tagliabue (2006) Vitam. Horm. 74:229.
Kornman, K.S. (2006) Am. J. Clin. Nutr. 83:475S.
Isoda, K. and F. Ohsuzu (2006) J. Atheroscler. Thromb. 13:21.
Kato, H. et al. (1997) Vet. Immunol. Immunopathol. 48:221.
Howard, R.D. et al. (1998) Am. J. Vet. Res. 59:704.
Martinon, F. and J. Tschopp (2007) Cell Death Differ. 14:10.
Kato, H. et al. (1996) Gene 177:11.

Long Name

Interleukin 1 beta

Alternate Names

IL-1b, IL-1F2, IL1 beta, IL1B

Entrez Gene IDs

3553 (Human); 16176 (Mouse); 24494 (Rat); 397122 (Porcine); 403974 (Canine); 100034237 (Equine); 100135556 (Guinea Pig)

Gene Symbol

IL1B

UniProt

Q28386

Additional IL-1 beta/IL-1F2 Products

Product Documents for Equine IL-1 beta/IL-1F2 Antibody

Product Datasheets

Download Product Datasheets

COA

SDS

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Product Specific Notices for Equine IL-1 beta/IL-1F2 Antibody

For research use only

Citations
Reviews

Equine IL-1 beta/IL-1F2 Antibody

R&D Systems, part of Bio-Techne | Catalog # AF3340

Key Product Details

Species Reactivity

Applications

Label

Antibody Source

View all IL-1 beta/IL-1F2 Antibodies »

Product Specifications

Immunogen

Specificity

Clonality

Host

Isotype

Endotoxin Level

Scientific Data Images for Equine IL-1 beta/IL-1F2 Antibody

Cell Proliferation Induced by IL‑1 beta/IL‑1F2 and Neutral-ization by Equine IL‑1 beta/IL‑1F2 Antibody.