Purified anti-mouse / rat IL-1β Antibody

Pricing & Availability
B122 (See other available formats)
Regulatory Status
Other Names
Interleukin-1β, Catabolin, Hematopoietin-1 (H1), IFNβ-inducing factor, Interleukin-β, Osteoclast activating factor (OAF)
Armenian Hamster IgG
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Product Citations
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503501 50 µg £53
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503502 500 µg £98
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IL-1 refers to two proteins, IL-1α and IL-1β which are the products of distinct genes, but which are recognized by the same cell surface receptors. IL-1β is a potent immuno-modulator which mediates a wide range of immune and inflammatory responses including the activation of B and T cells. The B122 antibody reacts with the precursor and mature secreted forms of mouse IL-1β. This antibody also recognizes rat IL-1β. The B122 antibody can neutralize the bioactivity of natural or recombinant IL-1β.

Product Details
Technical Data Sheet (pdf)

Product Details

Verified Reactivity
Mouse, Rat
Antibody Type
Host Species
Armenian Hamster
E. coli -expressed, recombinant mouse IL-1β
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
The antibody was purified by affinity chromatography.
0.5 mg/ml
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C.

ELISA Capture - Quality tested
ELISPOT Capture, Depletion, IHC-F, IP, Neut, WB - Reported in the literature, not verified in house

Recommended Usage

Each lot of this antibody is quality control tested by ELISA assay. For ELISA capture applications, a concentration range of 2.0 - 6.0 µg/ml is recommended. To obtain a linear standard curve, serial dilutions of IL-1β recombinant protein ranging from 2000 to 30 pg/ml are recommended for each ELISA plate. It is recommended that the reagent be titrated for optimal performance for each application.

Application Notes

ELISA or ELISPOT Capture3: The purified B122 antibody is useful as the capture antibody in a mouse IL-1ß sandwich ELISA or ELISPOT assay, when used in conjunction with the biotinylated Poly5158 antibody (Cat. No. 515801) as the detecting antibody. The LEAF™ purified antibody is suggested for ELISPOT capture.

Certain formats of clone B122 have been reported for in vitro neutralization of IL-1ß bioactivity1, in vivo cytokine depletion5, immunohistochemical staining of frozen sections6, Western blotting7, and the study of endotoxin shock8.

Application References

(PubMed link indicates BioLegend citation)
  1. Hogquist K, et al. 1991. J. Immunol. 146:1534.
  2. Williams RO, et al. 2000. J. Immunol. 165:7240. (Neut)
  3. Brewer J, et al. 1998. J. Immunol. 161:4000. (ELISA and ELISPOT Capture)
  4. Rogers HW, et al. 1992. Proc. Natl. Acad.Sci. USA 89:1011.
  5. Cantwell AM, et al. 2010. BMC Immunol. 11:29. (Depletion)
  6. Dube PH, et al. 2001. Proc. Natl. Acad. Sci. USA 98:10880. (IHC)
  7. Babelova A, et al. 2009. J. Biol. Chem. 284:24035. (WB)
  8. Lu JY, et al. 2006. Genes Dev. 20:3174. (Neut) PubMed
Product Citations
  1. Zou B, et al. 2017. PLoS Pathogens. 13(6):e1006436. PubMed
  2. Nie S, et al. 2019. Cancer Manag Res. 11:10257. PubMed
  3. Pereira RM, et al. 2019. J Endocrinol. 241:59. PubMed
  4. Zhang D, et al. 2020. Signal Transduct Target Ther. 5:24. PubMed
  5. Dantis Pereira de Campos T, et al. 2020. Int J Mol Sci. 21:00. PubMed
  6. Morita M, et al. 2021. Heliyon. 7:e06228. PubMed
  7. Herrada AA, et al. 2022. Front Immunol. 13:841641. PubMed
  8. Ranjan K, et al. 2021. J Clin Invest. 131:. PubMed
  9. Zhao L, et al. 2021. STAR Protocols. 2:100732. PubMed
  10. den Hartigh AB, et al. 2018. Curr Protoc Immunol. :e52. PubMed
  11. Zhang D, et al. 2020. Signal Transduct Target Ther. 5:24. PubMed
  12. Pahari S, et al. 2020. Autophagy. 1.375694444. PubMed
AB_315286 (BioLegend Cat. No. 503501)
AB_315287 (BioLegend Cat. No. 503502)

Antigen Details

Cytokine; 17.5 kD (Mammalian)
Stimulates T cells, B cells, proliferation/activation of NK cells, fibroblasts, thymocytes, glioblastoma cells, astroglia, microglia; monocyte transition from IL-1β to IL-1α when matured to macrophages
Cell Sources
Monocytes, tissue macrophages, Langerhan cells, dendritic cells, T lymphocytes, B lymphocytes, natural killer (NK) cells, large granular lymphocytes (LGL), vascular endothelium, smooth muscle, fibroblasts, thymic epithelia, astrocytes, microglia, glioma,
Cell Targets
B cells, T cells, monocytes
Type I IL-1R (CDw121a), Type II IL-1R (CDw121b)
Biology Area
Immunology, Innate Immunity
Molecular Family
Antigen References

1. Fitzgerald K, et al. Eds. 2001. The Cytokine FactsBook. Academic Press San Diego.
2. Bomford R, et al. Eds. 1989. Interleukin-1 inflammation and disease. Elsevier New York.
3. Brazel D, et al. 1991. Biotechnol. Ther. 2:241.
4. Dinarello C. 1996. Blood 87:2095.

Upregulated by TNF-α, IFN-α, IFN-β, IFN-γ, bacterial endotoxins, viruses, mitogens, antigens; downregulated by IL-6, lipoproteins, lipids, and α2-macroglobulin
Gene ID
16176 View all products for this Gene ID
View information about IL-1beta on UniProt.org

Related FAQs

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Other Formats

View All IL-1β Reagents Request Custom Conjugation
Description Clone Applications
Purified anti-mouse / rat IL-1β B122 ELISA Capture,ELISPOT Capture,Depletion,IHC-F,IP,Neut,WB
Biotin anti-mouse / rat IL-1β B122 ELISA
Ultra-LEAF™ Purified anti-mouse / rat IL-1β B122 ELISA Capture,ELISPOT Capture,Depletion,IHC-F,IP,Neut,WB
GoInVivo™ Purified anti-mouse/rat IL-1β B122 ELISA Capture,ELISPOT Capture,Depletion,IHC-F,IP,Neut,WB
Go To Top Version: 1    Revision Date: 11/30/2012

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This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
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  • Purified anti-mouse / rat IL-1β

  • Biotin anti-mouse / rat IL-1β

  • Ultra-LEAF™ Purified anti-mouse / rat IL-1β

  • GoInVivo™ Purified anti-mouse/rat IL-1β


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