Technical Data
Interleukin 18BP (IL-18BP, IL18BPa, Interleukin 18 Binding Protein, Tadekinig-alfa, interferon-gamma inducing factor, IGIF)
IL-18BP which binds to IL-18, also known as interferon-gamma inducing factor (IGIF) which is a pro-inflammatory cytokine that belongs to the IL-1 family (1). IL-18 is a pleiotropic factor involved in the regulation of both innate and acquired immune responses, playing a key role in autoimmune, inflammatory, and infectious diseases (2). Interleukin-18 binding protein (IL18-BP) is an inhibitor of the pro-inflammatory cytokine IL18. The recombinant forms of IL18BP did not exhibit species specificity and prevented interleukin-18 binding to its receptor. In addition, they inhibited interleukine-18 dependent IFN-gamma production from KG-1 cells effectively. These results suggest that the interleukin-18 binding protein may possess interleukine-18 antagonist activity (3). IL-18 plays an important role in host defense against microbial pathogens. Many poxviruses encode homologous IL-18BP that neutralizes IL-18 activity. Data show that IL-18BP prevents IL-18 from binding to IL-18R by interacting with three residues that are part of the binding site for IL-18Ralpha (4).

Suitable for use in Flow Cytometry, Western Blot and Immunohistochemistry. Other applications not tested.

Recommended Dilutions:
Flow Cytometry: 1:10
Western Blot: 1:500
Immunohistochemistry: 1:50-1:100
Optimal dilutions to be determined by the researcher.

Storage and Stability:
May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. 

Manufactured incorporating RabMAb® technology under Epitomics US patents, No 5,675,063 and 7,429,487, owned by Abcam.
100ul-20°CBlue IceHumanRabbit
Not Determined
Synthetic peptide corresponding to residues near the N-terminus of human IL18BP.
Supplied as a liquid in 50mM Tris-Glycine, pH 7.4, 0.15M sodium chloride, 0.05% BSA, 0.01% sodium azide, 40% glycerol.
Recognizes human IL18BP at ~40kD. Species Crossreactivity: rat.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.
1. Nicklin MJ, et al. Genomics 79, 718-725, 2002. 2. Nakanishi K, et al. Annu. Rev. Immunol. 19, 423-474, 2001 3. Aizawa Y, et al. FEBS Lett. 445(2-3):338-42, 1999. 4. Meng X, et al. Virology 358(1):211-20, 2007.