> 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 TSLP (R127A, R130A) at 1μg/ml (100μl/Well). Dose response curve for Human TSLPR, hFc Tag with the EC50 of 15.5ng/ml determined by ELISA. See testing image for detail.
Centrifuge tubes before opening. Reconstituting to a concentration more than 100 μg/mL is recommended (usually we use 1 mg/mL solution for lyophilization). Dissolve the lyophilized protein in distilled water.
缓冲液
Lyophilized from 0.22μm filtered solution in PBS ( pH 7.4). Normally 5 % trehalose is added as protectant before lyophilization.
储存条件
4 °C,-80 °C
储存方法
Reconstituted protein stable at -80°C for 12 months, 4°C for 1 week. Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
TSLP receptor, TSLPR, CRL2, CRLF2Y, CRLF2, IL-XR, p2RY8/CRLF2 fusion, CRLF2,Thymic stromal lymphopoietin (TSLP) is an interleukin-7 (IL-7) like cytokine, which plays an important role in the regulation of immune responses to allergens. TSLP binds to a heterodimeric receptor complex composed of the IL-7 receptor alpha chain (IL-7Ralpha) and the TSLP receptor (TSLPR, also known as CRLF2).
分子量
50.8 kDa. Due to glycosylation, the protein migrates to 60-75 kDa based on Tris-Bis PAGE result.