Active Recombinant Human EFNA4 protein, His-tagged

Specification :
| Source : HEK293 | Species : Human | Tag : His | Form : Lyophilized from sterile PBS, pH 7.4.Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA. | Bio-activity : Measured by its binding ability in a functional ELISA.Immobilized recombinant Human EFNA4h(NEW) at 10 μg/ml(100 μl/well) can bind human EPHA7-His/Biotin, The EC50 of human EPHA7-His/Biotin is 150-320 ng/mL. | Molecular Mass : The recombinant human EFNA4 consists of 157 amino acids and predicts a molecular mass of 17.8 kDa. | Protein Length : Met1-Gly171 | Endotoxin : | Purity : > 95 % as determined by SDS-PAGE. | Storage : Samples are stable for up to twelve months from date of receipt at -20°C to -80°CStore it under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles. | Reconstitution : It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 ug/ul. Centrifuge the vial at 4°C before opening to recover the entire contents.