Recombinant Mouse IL-1 beta/IL-1F2 Protein



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Recombinant Mouse IL-1 beta/IL-1F2 Protein Summary

A partial protein corresponding to IL1B.
E. coli expressed amino acids Val 118-Ser 269 of mouse IL-1B (accession # P10749).
Details of Functionality
Measured by mouse D10S cell proliferation assay. The ED50 is 0.01 ng/ml, corresponding to a specific activity of 1.0 x 10E8 U/mg.
Protein/Peptide Type
Partial Recombinant Protein
Endotoxin Note
Less than 0.01 ng/ug cytokine as determined by the LAL assay.


Application Notes
This reagent has been tested by sandwich ELISA using the anti-mouse IL-1beta; ELISA pair (B122/biotin-polyclonal) and in bioassays, with an observed ED,50 of 10 pg/ml, corresponding to a specific activity of approximately 1x10^8 Units/mg.

Reactivity Notes

This protein was made to the mouse sequence.

Packaging, Storage & Formulations

Store at -80C. Avoid freeze-thaw cycles.
Sterile liquid; 10 mM sodium phosphate, pH 7.2, 150 mM NaCl, with no carriers. 0.22 um filtered.
No Preservative


Purity: Greater than 98%, as determined by SDS-PAGE

Alternate Names for Recombinant Mouse IL-1 beta/IL-1F2 Protein

  • catabolin
  • IL1 beta
  • IL-1 beta
  • IL-1
  • IL1B
  • IL-1b
  • IL1-BETA
  • IL-1F2
  • IL1F2IL-1 beta
  • interleukin 1, beta
  • interleukin-1 beta
  • preinterleukin 1 beta
  • pro-interleukin-1-beta


Mouse IL-1beta, also called lymphocyte activating factor (LAF), endogenous pyrogen (EP), leucocyte endogenous mediator (LEM), mononuclear cell factor (MCF), is a ~17 kDa factor produced by a wide variety of cells, including macrophages, dendritic cells, T and B cells. IL-1beta is mostly cell associated with 23% amino acid homology with IL-1alpha. The immune regulatory role of IL-1beta is exerted on a wide range of cells including lymphocytes, epithelial cells and fibroblasts. In vivo, it induces hypotension, fever, and acute phase response.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 3 months from date of receipt.

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Blogs on IL-1 beta/IL-1F2.

IL-1 beta (interleukin 1 beta, lymphocyte activating factor (LAF))
IL-1 was originally identified and cloned as a lymphocyte mitogen and much later, was found to be comprised of two closely related but distinct proteins, interleukin 1 alpha (IL-1 alpha) and interleukin 1 beta (IL-1 beta). Both these proteins bind...  Read full blog post.

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Gene Symbol IL1B