Recombinant Human IL-1RL1/ST2 Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Lys19-Phe328.
纯度
> 95 % as determined by Tris-Bis PAGE,> 95 % as determined by HPLC
过滤
0.22 μm filtered
内毒素水平
Less than 1EU per μg by the LAL method.
Biological Activity Comment
Immobilized Human IL-33, No Tag at 2μg/ml (100μl/well) on the plate. Dose response curve for Human IL-1RL1, His Tag with the EC50 of 3ng/ml determined by ELISA. See testing image for detail.
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/mL is recommended. Dissolve the lyophilized protein in distilled water.
缓冲液
Lyophilized from 0.22μm filtered solution in PBS ( pH 7.4). Normally 8 % trehalose is added as protectant before lyophilization.
储存条件
-20 °C,-80 °C
储存方法
-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.
IL1RL1(also known as ST2) is a member of the IL1 receptor family and serves as the receptor for IL-33. The ST2 protein has two isoforms including sST2 and the membrane-bound ST2 receptor, referred to as ST2L. Preclinical studies have demonstrated that binding of IL-33 to ST2L elicits a cardioprotective effect. ST2/IL-33 signaling may play an important role in intestinal disease.
分子量
36 kDa. Due to glycosylation, the protein migrates to 50-70 kDa based on Tris-Bis PAGE result.