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Recombinant Mouse IL-18/IL-1F4 Protein, CF

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Product Details

Summary
Reactivity MuSpecies Glossary
Applications Bioactivity
Format
Carrier-Free

Order Details

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Catalog# & Formulation Size Price
Carrier Free
B004-2
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Recombinant Mouse IL-18/IL-1F4 Protein, CF Summary

Additional Information
A New rm IL-18 is Now Available! Competitively priced; Enhanced stability; Lower endotoxin specification; Made in-house!
Details of Functionality
Induction of IFN-gamma by Mouse IL-18 receptor transfected KG-1 cell [human myelomonocyte; ATCC CCL246] in response to the recombinant mouse IL-18 was measured using human IFN-gamma ELISA. The activity of lot 040 was as follows:IL-18 final concentration 5ng/mL; IFN-gamma induction 2863 IU/mL and IL-18 final concentration 10 ng/mL; IFN-gamma induction 7312 IU/mL.
Source
E. coli-derived mouse IL-18/IL-1F4 protein
36-192 aa
Protein/Peptide Type
Recombinant Proteins
Gene
Il18
Purity
>90%, by SDS-PAGE under reducing conditions and visualized by Colloidal Coomassie® Blue stain.
Endotoxin Note
<1.0 EU per 1 μg of the protein by the LAL method.

Applications/Dilutions

Dilutions
  • Bioactivity
Theoretical MW
18 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Publications
Read Publications using
B004-5 in the following applications:

Packaging, Storage & Formulations

Storage
Store the unopened product at -20 to -70 °C. Use a manual defrost freezer and avoid repeated freeze-thaw cycles. Do not use past expiration date.
Buffer
Lyophilized in PBS containing 1% sucrose.
Purity
>90%, by SDS-PAGE under reducing conditions and visualized by Colloidal Coomassie® Blue stain.
Reconstitution Instructions
Reconstitute in 250 μL of ice-cold distilled water on ice.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Recombinant Mouse IL-18/IL-1F4 Protein, CF

  • Iboctadekin
  • IFN-gamma-inducing factor
  • IGIF
  • IGIFIL-1 gamma
  • IL18
  • IL-18
  • IL-18MGC12320
  • IL-1F4
  • IL1F4iboctadekin
  • IL-1g
  • Interferon gamma-inducing factor
  • interleukin 18 (interferon-gamma-inducing factor)
  • Interleukin-1 gamma
  • interleukin-18

Background

Interleukin-18 (IL-18) is a proinflammatory cytokine in the IL-1 family that exerts distinct immune effects depending on the local cytokine environment. It is expressed as a 24 kDa precursor by endothelial and epithelial cells, keratinocytes, gamma δ T cells, and phagocytes. The precursor is activated intracellularly by Caspase-1 mediated proteolysis to release the 17 kDa mature cytokine. The precursor can also be released by necrotic cells for extracellular cleavage by multiple proteases.
IL-18 activation is induced by infection or tissue damage and contributes to disease pathology in chronic inflammation (1-3). IL-18 binds to the widely expressed IL-18 R alpha which recruits IL-18 R beta to form the signaling receptor complex (4, 5). Its bioactivity is negatively regulated by interactions with IL-18 binding proteins and virally encoded IL-18BP homologs (6). In the presence of IL-12 or IL-15, IL-18 enhances anti-viral Th1 immune responses by inducing IFN-gamma production and the cytolytic activity of CD8+ T cells and NK cells (7, 8). In the absence of IL-12 or IL-15, however, IL-18 promotes production of the Th2 cytokines IL-4 and IL-13 by CD4+ T cells and basophils (9, 10). In the presence of IL-1 beta or IL-23, IL-18 induces the antigen-independent production of IL-17 by gamma δ T cells and CD4+ T cells (11). IL-18 also promotes myeloid dendritic cell maturation and triggers neutrophil respiratory burst (12, 13). In cancer, IL-18 exhibits diverse activities including enhancing anti-tumor immunity, inhibiting or promoting angiogenesis, and promoting tumor cell metastasis (14). Mature mouse IL-18 shares 63% and 91% amino acid sequence identity with mouse and rat IL-18, respectively (15).
  1. Dinarello, C.A. et al. (2013) Front. Immunol. 4:289.
  2. Smith, D.E. (2011) J. Leukoc. Biol. 89:383.
  3. Gu, Y. et al. (1997) Science 275:206.
  4. Torigoe, K. et al. (1997) J. Biol. Chem. 272:25737.
  5. Cheung, H. et al. (2005) J. Immunol. 174:5351.
  6. Novick, D. et al. (1999) Immunity 10:127.
  7. Fehniger, T.A. et al. (1999) J. Immunol. 162:4511.
  8. Yoshimoto, T. et al. (1998) J. Immunol. 161:3400.
  9. Yoshimoto, T. et al. (2000) Nat. Immunol. 1:132.
  10. Kroeger, K.M. et al. (2009) J. Leukoc. Biol. 86:769.
  11. Lalor, S.J. et al. (2011) J. Immunol. 186:5738.
  12. Li, J. et al. (2004) Cell. Immunol. 227:103.
  13. Elbim, C. et al. (2005) Clin. Diagn. Lab. Immunol. 12:436.
  14. Fabbi, M. et al. (2015) J. Leukoc. Biol. 97:665.
  15. Okamura, H. et al. (1995) Nature 378:88.

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Publications for IL-18/IL-1F4 (B004-5)(3)

We have publications tested in 1 confirmed species: Mouse.

We have publications tested in 2 applications: Bioassay, In Vivo.


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(2)
In Vivo
(1)
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Bioinformatics

Gene Symbol Il18