Mouse IL-1ra/IL-1F3 Antibody

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IL‑1ra/IL‑1F3 Inhibition of IL‑1 alpha /IL‑1F1-dependent Cell Proliferation and Neutralization by Mouse IL‑1ra/IL‑1F3 Antibody.
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Citations (10)
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Mouse IL-1ra/IL-1F3 Antibody Summary

Species Reactivity
Detects mouse IL-1ra/IL-1F3 in ELISAs and Western blots. In sandwich ELISAs, approximately 45% cross-reactivity with recombinant rat IL‑1ra/IL‑1F3 and less than 1% cross-reactivity with recombinant human IL‑1ra/IL‑1F3, recombinant porcine IL‑1ra/IL‑1F3, and recombinant equine IL‑1ra/IL‑1F3 is observed.
Polyclonal Goat IgG
Antigen Affinity-purified
E. coli-derived recombinant mouse IL‑1ra/IL-1F3
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.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.


Recommended Concentration
Western Blot
0.1 µg/mL
Recombinant Mouse IL‑1ra/IL‑1F3 (Catalog # 480-RM)

Mouse IL-1ra/IL-1F3 Sandwich Immunoassay

Recommended Concentration
ELISA Capture (Matched Antibody Pair)
0.2-0.8 µg/mL 

Use in combination with:

Detection Reagent: Mouse IL‑1ra/IL‑1F3 Biotinylated Antibody (Catalog # BAF480)

Standard: Recombinant Mouse IL-1ra/IL-1F3 Protein (Catalog # 480-RM)

Measured by its ability to neutralize IL‑1ra/IL‑1F3 inhibition of IL‑1 alpha /IL‑1F1-dependent 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 1-5 µg/mL in the presence of 150 ng/mL Recombinant Mouse IL‑1ra/IL‑1F3, 50 pg/mL Recombinant Human IL‑1 alpha /IL‑1F1.

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

Neutralization IL‑1ra/IL‑1F3 Inhibition of IL‑1 alpha /IL‑1F1-dependent Cell Proliferation and Neutralization by Mouse IL‑1ra/IL‑1F3 Antibody. View Larger

IL‑1ra/IL‑1F3 Inhibition of IL‑1 alpha /IL‑1F1-dependent Cell Proliferation and Neutralization by Mouse IL‑1ra/IL‑1F3 Antibody. Recombinant Mouse IL-1ra/IL-1F3 (Catalog # 480-RM) inhibits Recombinant Human IL-1a/IL-1F1 (Catalog # 200-LA) induced proliferation in the D10.G4.1 mouse helper T cell line in a dose-dependent manner (orange line). Inhibition of Recombinant Human IL-1a/IL-1F1 (50 pg/mL) activity elicited by Recombinant Mouse IL-1ra/IL-1F3 (150 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Mouse IL-1ra/IL-1F3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-480-NA). The ND50 is typically 1-5 µg/mL.

Reconstitution Calculator

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Preparation and Storage

Reconstitute at 0.2 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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-1ra/IL-1F3

IL-1ra was originally isolated from the urine of patients with monocytic leukemia and has also been purified from adherent monocytes. The naturally-occurring, fully glycosylated form has an apparent molecular weight of about 25,000 Daltons. The protein shows 26% amino acid homology to IL-1 beta and 19% homology to IL-1 alpha. It will compete with either factor for receptor binding, but does not interact with either one. Human IL-1ra will bind to both types of IL-1 receptor (I and II) on human cells. In mouse, IL-1 RII does not bind IL-1ra. The recombinant, non-glycosylated form of IL-1ra blocks binding of IL-1 to its receptor equally as well as the naturally-occurring, glycosylated form. The IL-1ra has been shown to block the inflammatory responses induced by IL-1 both in vitro and in vivo. Pre-clinical and clinical studies were done to test possible therapeutic applications for IL-1ra in the treatment of sepsis, rheumatoid arthritis and chronic myelogenous leukemia.

Long Name
Interleukin 1 Receptor Antagonist
Entrez Gene IDs
3557 (Human); 16181 (Mouse); 60582 (Rat); 397499 (Porcine)
Alternate Names
DIRA; ICIL-1ra; IL1F3; IL-1F3; IL1ra; IL-1ra; IL-1ra3; IL1RN; IL-1RN; interleukin 1 receptor antagonist; IRAP; MVCD4

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Citations for Mouse IL-1ra/IL-1F3 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.

10 Citations: Showing 1 - 10
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  1. Low-level laser therapy prevents medication-related osteonecrosis of the jaw-like lesions via IL-1RA-mediated primary gingival wound healing
    Authors: Y Zheng, X Dong, S Chen, Y He, J An, M Liu, L He, Y Zhang
    BMC Oral Health, 2023-01-10;23(1):14.
    Species: Mouse
    Sample Types: In Vivo
    Applications: Neutralization
  2. Bone Marrow-Derived IL-1Ra Increases TNF Levels Poststroke
    Authors: CU von Linsto, SM Hindkjær, PV Nielsen, M Degn, KL Lambertsen, B Finsen, BH Clausen
    Cells, 2021-04-20;10(4):.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: ICC
  3. Effective combinatorial immunotherapy for castration-resistant prostate cancer
    Authors: X Lu, JW Horner, E Paul, X Shang, P Troncoso, P Deng, S Jiang, Q Chang, DJ Spring, P Sharma, JA Zebala, DY Maeda, YA Wang, RA DePinho
    Nature, 2017-03-20;543(7647):728-732.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Neutralization
  4. Correction: Yersinia pestis Activates Both IL-1beta and IL-1 Receptor Antagonist to Modulate Lung Inflammation during Pneumonic Plague.
    PLoS Pathog, 2015-05-13;11(5):e1004921.
    Species: Mouse
    Sample Types: In Vivo
  5. Brain interleukin-1beta and the intrinsic receptor antagonist control peripheral Toll-like receptor 3-mediated suppression of spontaneous activity in rats.
    Authors: Yamato M, Tamura Y, Eguchi A, Kume S, Miyashige Y, Nakano M, Watanabe Y, Kataoka Y
    PLoS ONE, 2014-03-12;9(3):e90950.
    Species: Rat
    Sample Types: In Vivo, Protein
    Applications: Neutralization, Western Blot
  6. Stratification is the key: inflammatory biomarkers accurately direct immunomodulatory therapy in experimental sepsis.
    Authors: Osuchowski MF, Connett J, Welch K, Granger J, Remick DG
    Crit. Care Med., 2009-05-01;37(5):1567-73.
    Species: Mouse
    Sample Types: Plasma
    Applications: ELISA Development
  7. Interleukin 1 receptor antagonist mediates the antiinflammatory and antifibrotic effect of mesenchymal stem cells during lung injury.
    Authors: Ortiz LA, Dutreil M, Fattman C, Pandey AC, Torres G, Go K, Phinney DG
    Proc. Natl. Acad. Sci. U.S.A., 2007-06-14;104(26):11002-7.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Neutralization
  8. Circulating cytokine/inhibitor profiles reshape the understanding of the SIRS/CARS continuum in sepsis and predict mortality.
    Authors: Osuchowski MF, Welch K, Siddiqui J, Remick DG
    J. Immunol., 2006-08-01;177(3):1967-74.
    Species: Mouse
    Sample Types: Plasma
    Applications: ELISA Development
  9. Sequential ELISA to profile multiple cytokines from small volumes.
    Authors: Osuchowski MF, Siddiqui J, Copeland S, Remick DG
    J. Immunol. Methods, 2005-07-01;302(1):172-81.
    Species: Mouse
    Sample Types: Plasma
    Applications: ELISA Development
  10. Ibuprofen protects ischemia-induced neuronal injury via up-regulating interleukin-1 receptor antagonist expression.
    Authors: Park EM, Cho BP, Volpe BT, Cruz MO, Joh TH, Cho S
    Neuroscience, 2005-01-01;132(3):625-31.
    Species: Rat
    Sample Types: Whole Cells, Whole Tissue
    Applications: IHC-Fr, Neutralization


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