Date published: 2025-10-19

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IL-1ra Antibody (5G11): sc-101342

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Datasheets
  • IL-1ra Antibody (5G11) is a mouse monoclonal IgG2a κ provided at 200 µg/ml
  • raised against recombinant L-1ra of human origin
  • recommended for detection of IL-1ra of human origin by WB, IP, IF and IHC(P); non cross-reactive with IL-1α or IL-1β
  • m-IgGκ BP-HRP is the preferred secondary detection reagent for IL-1ra Antibody (5G11) for WB and IHC(P) applications. This reagent is now offered in a bundle with IL-1ra Antibody (5G11) (see ordering information below). For additional m-IgGκ BP conjugates see our complete list of Mouse IgG Binding Proteins.

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    IL-1ra Antibody (5G11) is a mouse monoclonal IgG2a antibody that detects IL-1ra in human samples through various applications including western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), and immunohistochemistry with paraffin-embedded sections (IHCP). IL-1ra, or interleukin-1 receptor antagonist, plays a crucial role in modulating the immune response by inhibiting the activity of pro-inflammatory cytokines IL-1α and IL-1β, which promote inflammation and immune activation. This regulation is particularly important in preventing excessive inflammatory responses that can lead to tissue damage and chronic inflammatory diseases. IL-1ra is primarily located in the extracellular space, where IL-1ra binds to the same receptors as IL-1α and IL-1β, effectively blocking their action and serving as a natural anti-inflammatory agent. IL-1ra presence is vital during various physiological processes, including the resolution of inflammation and maintenance of immune homeostasis, making IL-1ra a significant target for therapeutic interventions in conditions such as rheumatoid arthritis and other inflammatory disorders. With IL-1ra′s ability to neutralize IL-1 activity, IL-1ra has been explored as a potential treatment option, highlighting the importance of understanding IL-1ra function and interactions within the immune system.

    For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

    Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

    LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

    IL-1ra Antibody (5G11) References:

    1. IL-1B-31 and IL-1Ra polymorphisms associated with increased host susceptibility to immune thrompocytopenia.  |  Kim, J. 2017. Blood Res. 52: 235-236. PMID: 29333395
    2. IL-1 and IL-1ra are key regulators of the inflammatory response to RNA vaccines.  |  Tahtinen, S., et al. 2022. Nat Immunol. 23: 532-542. PMID: 35332327
    3. IL-1Ra and sVCAM-1 in chikungunya virus infection.  |  Chirathaworn, C., et al. 2022. Acta Trop. 233: 106548. PMID: 35667454
    4. IL-1 Receptor Antagonist (IL-1Ra) Levels and Management of Metabolic Disorders.  |  Luotola, K. 2022. Nutrients. 14: PMID: 36014927
    5. IL-1RA Antibodies in Myocarditis after SARS-CoV-2 Vaccination.  |  Thurner, L., et al. 2022. N Engl J Med. 387: 1524-1527. PMID: 36130012
    6. Constitutive IL-1RA production by modified immune cells protects against IL-1-mediated inflammatory disorders.  |  Colantuoni, M., et al. 2023. Sci Transl Med. 15: eade3856. PMID: 37256935
    7. IL-1RA promotes oral squamous cell carcinoma malignancy through mitochondrial metabolism-mediated EGFR/JNK/SOX2 pathway.  |  Yuan, SF., et al. 2023. J Transl Med. 21: 473. PMID: 37461111
    8. Targeting IL-1Ra to attenuate fungal infection.  |  Wang, M. 2023. Nat Rev Nephrol. 19: 622. PMID: 37608183
    9. Regulatory T cell-derived IL-1Ra suppresses the innate response to respiratory viral infection.  |  Griffith, JW., et al. 2023. Nat Immunol. 24: 2091-2107. PMID: 37945820
    10. Autoantibody-Mediated Depletion of IL-1RA in Still's Disease and Potential Impact of IL-1 Targeting Therapies.  |  Hoffmann, MC., et al. 2024. J Clin Immunol. 44: 45. PMID: 38231276

    Ordering Information

    Product NameCatalog #UNITPriceQtyFAVORITES

    IL-1ra Antibody (5G11)

    sc-101342
    200 µg/ml
    $316.00

    IL-1ra Antibody (5G11): m-IgGκ BP-HRP Bundle

    sc-534542
    200 µg Ab; 40 µg BP
    $354.00