Active Recombinant Human FCGR3B Protein (NA1) (Gly 17 – Ser 200), His-tagged

Specification :
| Source : HEK293 | Species : Human | Tag : His | Form : Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization. | Bio-activity : Recombinant Human FCGR3B Protein (NA1), His-tagged on CM5 Chip via anti-His antibody , can bind Rituximab with an affinity constant of 8.17 μM as determined in a SPR assay (Biacore T200) (QC tested). | Molecular Mass : 22.8 kDa | Protein length : Gly 17 – Ser 200 | Endotoxin : Less than 1.0 EU per μg by the LAL method. | Purity : >95% as determined by SDS-PAGE. | Notes : Please avoid repeated freeze-thaw cycles. | Stability : No activity loss is observed after storage at:4-8 centigrade for 12 months in lyophilized state;-70 centigrade for 3 months under sterile conditions after reconstitution. | Storage : For long term storage, the product should be stored at lyophilized state at -20 centigrade or lower. | Reconstitution : It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 mg/ml. Centrifuge the vial at 4 centigrade before opening to recover the entire contents.