IL18BP Protein, Mouse, Recombinant (His Tag): Product Information
> 95 % as determined by SDS-PAGE
< 1.0 EU per μg of the protein as determined by the LAL method
Measured by its binding ability in a functional ELISA. Immobilized IL18BP Protein, Mouse, (His Tag)(Cat:50206-M08H) at 2 μg/mL (100 μL/well) can bind IL-18 Protein, Mouse (Cat:50073-MNCE)Biotinylated, the EC50 of Biotinylated Mouse IL-18 is 25-80 μg/mL.
A DNA sequence encoding mouse IL18BP (NP_034661.1) (Met 1-Ala 193) precursor was expressed with the polyhistide tag at the C-terminus.
The recombinant mouse IL18BP comprises 176 amino acids and has a predicted molecular mass of 19.4 kDa. In SDS-PAGE under reducing conditions, rm IL18BP migrates between 35-50 kDa due to different glycosylation.
Lyophilized from sterile PBS, pH 7.4 Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the hard copy of CoA.
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Stability & Storage
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃ Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Interleukin-18-binding protein (IL-18BP) is a constitutively expressed and secreted protein. IL-18BP is a cytokine receptor that belongs to the interleukin 1 receptor family. This receptor specifically binds interleukin 18 (IL18) and is essential for IL18 mediated signal transduction. IFN-alpha and IL12 are reported to induce the expression of this receptor in NK and T cells. This gene along with four other members of the interleukin 1 receptor family, including IL1R2, IL1R1, ILRL2 (IL-1Rrp2), and IL1RL1 (T1/ST2), form a gene cluster on chromosome 2q. The adjacently located family members IL18 Receptor 1 (IL18R1) and IL18 receptor accessory protein (IL18RAP) may also be important in the development of asthma and atopy. IL-18 binding protein (IL-18BP) was only moderately elevated, resulting in a high level of biologically active free IL-18 in HPS. A severe IL-18/IL-18BP imbalance results in Th-1 lymphocyte and macrophage activation, which escapes control by NK-cell cytotoxicity and may allow for secondary HPS in patients with underlying diseases.
interleukin 18 binding protein
IL1 signaling pathway
Novick D, et al.. (2001) A novel IL-18BP ELISA shows elevated serum IL-18BP in sepsis and extensive decrease of free IL-18. Cytokine. 14(6): 334-42.
Mazodier K, et al.. (2005) Severe imbalance of IL-18/IL-18BP in patients with secondary hemophagocytic syndrome. Blood. 106(10): 3483-9.
Akira S. (2000) The role of IL-18 in innate immunity. Curr Opin Immunol. 12(1): 59-63.
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