Active Recombinant Human ERBB2 protein, Twin-Strep-tagged

Specification :
| Source : HEK293 | Species : Human | Tag : Twin-Strep | Form : Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. | Bio-activity : Immobilized Human Her2 Protein, Twin-Strep Tag at 0.05 μg/mL (100 μL/well) can bind Herceptin with a linear range of 0.4-3 ng/mL. | Molecular Mass : This protein carries a twin strep tag at the C-terminus.The protein has a calculated MW of 72.4 kDa. The protein migrates as 90-115 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation. | Proteinlength : Thr23-Thr652 | Endotoxin : Less than 1.0 EU per μg by the LAL method. | Purity : >95% as determined by SDS-PAGE. | Storage : For long term, the product should be stored at lyophilized state at -20°C or lower.Please avoid repeated freeze-thaw cycles. This product is stable after at: -20°C to -70°C for 12 months in lyophilized state; -70°C for 3 months under sterile conditions after reconstitution. | 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.