Recombinant Human CD3E&CD3D/CD3 epsilon&CD3 delta Protein is expressed from HEK293 with His tag at the C-terminal.It contains Asp23-Glu120 (CD3E)&Phe22-Ala105 (CD3D).
The protein has a predicted MW of 17.9 kDa (CD3E) and 16.7 kDa (CD3D). Due to glycosylation, the protein migrates to 28-38 kDa and 25 kDa based on Tris-Bis PAGE result.
活性
Immobilized Human CD3E&CD3D at 2ug/ml (100ul/Well) on the plate. Dose response curve for OKT3, mFc Tag with the EC50 of 38ng/ml determined by ELISA (QC Test). The affinity constant of 0.36nM as determined in SPR assay (Biacore T200). See testing image for detail.
产物标签
C-His
抒发体系
HEK293
纯度
> 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
内毒素
Less than 1EU per ug by the LAL method.
运输及存储
产物表面
Lyophilized
运输前提
Shipped at ambient temperature.
制剂
Lyophilized from 0.22um filtered solution in PBS (pH 7.4). Normally 5% trehalose is added as protectant before lyophilization.
复溶
Centrifuge tubes before opening. Reconstituting to a concentration more than 100 ug/ml is recommended. Dissolve the lyophilized protein in distilled water.
存储和不变性
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.