Recombinant Human IL18BP Protein (His Tag)
Product Specifications
Background
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.
Abbreviation
IL18BP
Synonyms
I18BP; IL18 BP; IL18 BPa; IL-18BP; IL18BPa; Interleukin 18 binding protein; Interleukin-18-binding protein; MC51L 53L 54L homolog gene product; Tadekinig alfa; Tadekinig-alfa; Tadekinig-alfa and IL18BP; IL18BP
UniProt
O95998
Accession Number
O95998
Expression System
Mammalian
Tag
C-His
Sequence
Thr31-Gly194
Field of Research
Immunology; Cancer; Signal Transduction
Endotoxin
< 1.0 EU/mg of the protein as determined by the LAL method
Purity
> 85% as determined by reducing SDS-PAGE.
Bioactivity
Not validated for activity
Reconstitution
It is recommended that sterile water be added to the vial to prepare a stock solution of 0.5 mg/mL. Concentration is measured by UV-Vis
Shipping Conditions
This product is provided as lyophilized powder which is shipped with ice packs.
Storage Conditions
Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
Calculated Molecular Weight
17.9 kDa
Observed Molecular Weight
30-50 kDa
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with 5% Trehalose and 5% Mannitol.
Species
Human
Available Sizes
Curated Selection
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