Call Now

Human IL18R1 / CD218a Protein (His & Fc Tag)

CD218a,CDw218a,IL-1Rrp,IL18RA,IL1RRP

Catalog Number P11102-H03H
Organism Species Human
Host Human Cells
Synonyms CD218a,CDw218a,IL-1Rrp,IL18RA,IL1RRP
Molecular Weight The recombinant human IL18R1/Fc is a disulfide-linked homodimer. The reduced monomer comprises 559 amino acids and has a predicted molecular mass of 64 kDa. As a result of glycosylation, the apparent molecular mass of rh IL18R1/Fc monomer is approximately 95-110 kDa in SDS-PAGE under reducing conditions.
predicted N Ala 19
SDS-PAGE
Purity > 70 % as determined by SDS-PAGE
Protein Construction A DNA sequence encoding the extracellular domain of human IL18R1 (NP_003846.1) (Met 1-Arg 329) was fused with the C-terminal polyhistidine-tagged Fc region of human IgG1 at the C-terminus.
Bio-activity Measured by its ability to bind cynomolgus IL-18 in a functional ELISA.
Research Area Cancer |Invasion microenvironment |Angiogenesis |Cytokine & Receptor |Interleukin & Receptor |IL-1 family & Receptor |
Formulation Lyophilized from sterile PBS, pH 7.4
1. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background Interleukin-18 receptor 1 (IL18R1) also known as CD218 antigen-like family member A, CDw218a, IL1 receptor-related protein and CD218a, is an interleukin receptor of the immunoglobulin superfamily. IL18R1 is found expressed in lung, leukocytes, spleen, liver, thymus, prostate, small intestine, colon, placenta, and heart, and is absent from brain, skeletal muscle, pancreas, and kidney. High level of expression is found in Hodgkin disease cell lines. This receptor is specifically binds interleukin 18 (IL18), and is essential for IL18 mediated signal transduction. IL18R1 contains 3 Ig-like C2-type (immunoglobulin-like) domains and 1 TIR domain. It is a single-pass type I membrane protein. IFN-alpha and IL12 are reported to induce the expression of this receptor in NK and T cells. The increased expression of IL18R1 may contribute pathogenically to disease and is therefore a potential therapeutic target. The absence of a genetic association in the IL18R1 gene itself suggests regulation from other parts of the genome, or as part of the inflammatory cascade in multiple sclerosis without a prime genetic cause.
Reference
  • Nadif R, et al.. (2006) IL18 and IL18R1 polymorphisms, lung CT and fibrosis: A longitudinal study in coal miners. Eur Respir J. 28(6): 1100-5.
  • Haralambieva IH, et al.. (2011) Common SNPs/haplotypes in IL18R1 and IL18 genes are associated with variations in hum oral immunity to smallpox vaccination in Caucasians and African Americans. J Infect Dis. 204(3): 433-41.
  • Hulin-Curtis SL, et al.. (2012) Evaluation of IL18 and IL18R1 polymorphisms: genetic susceptibility to knee osteoarthritis. Int J Immunogenet. 39(2): 106-9.