Name : Rhesus macaque IL-18 R1/CD218a Protein

Product Source :
Recombinant Rhesus macaque IL-18 R1/CD218a Protein is expressed from HEK293 with hFc tag at the C-terminus. It contains Cys22-Gly329.[Accession | F7H8F9]

Molecular Weight :
The protein has a predicted MW of 61.96 kDa. Due to glycosylation, the protein migrates to 75-95 kDa based on Tris-Bis PAGE result.

Endotoxin Level :
Less than 1EU per μg by the LAL method.

Purity :
> 95% as determined by Tris-Bis PAGE> 95% as determined by HPLC

Formulation :
Lyophilized from 0.22 μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.

Reconstitution :
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.

Storage and Stability :
-20 to -80°C for 12 months as supplied from date of receipt. -80°C for 3-6 months after reconstitution. 2-8°C for 2-7 days after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.

Product Concentration :
Tris-Bis PAGE Rhesus macaque IL-18 R1 on Tris-Bis PAGE under reduced condition. The purity is greater than 95%. SEC-HPLC The purity of Rhesus macaque IL-18 R1 is greater than 95% as determined by SEC-HPLC. ELISA Data Immobilized Rhesus macaque IL-18 R1, hFc Tag at 1μg/ml (100μl/well) on the plate. Dose response curve for Biotinylated Human IL-18, No Tag with the EC50 of 0.42μg/ml determined by ELISA.

Background :
Interleukin-18 (IL-18) is a member of the interleukin-1 family of cytokines produced constitutively by different cell types and by adipose tissue. Interleukin (IL)-18 was originally discovered as a factor that enhanced IFN-γ production from anti-CD3-stimulated Th1 cells, especially in the presence of IL-12. Upon stimulation with Ag plus IL-12, naïve T cells develop into IL-18 receptor (IL-18R) expressing Th1 cells, which increase IFN-γ production in response to IL-18 stimulation.

Synonyms :
CD218a; IL18Ra; IL18R1; IL1RRP; IL-1 R5; IL-1 Rrp; IL-18 R alpha; IL-18 R1; IL-18Ra

References & Citations :
(1) Yasuda K, Nakanishi K, Tsutsui H. Interleukin-18 in Health and Disease. Int J Mol Sci. 2019 Feb 2;20(3):649. doi: 10.3390/ijms20030649. PMID: 30717382; PMCID: PMC6387150.

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