Source : |
HEK293 |
Species : |
Porcine |
Tag : |
His&StrepII |
Form : |
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization. |
Bio-activity : |
Porcine FCGRT&B2M Heterodimer Protein, His Tag&Strep II Tag captured on CM5 Chip via anti-His antibody can bind Herceptin with an affinity constant of 13.8 nM as determined in SPR assay (Biacore 8K). |
Molecular Mass : |
Porcine FCGRT&B2M Heterodimer Protein, His Tag&Strep II Tag, produced by co-expression of FCGRT and B2M, has a calculated MW of 32.3 kDa (FCGRT) and 12.8 kDa (B2M). Subunit FCGRT is fused with a polyhistidine tag at the C-terminus and subunit Beta-2 microglobulin (B2M) is fused with a Strep II tag at the C-terminus. The reducing (R) protein migrates as 32-35 kDa (FCGRT) and 14 kDa (B2M) respectively. |
Protein Length : |
Asp16-Ser289(FCGRT)&Val21-His118(B2M) |
Endotoxin : |
Less than 1.0 EU per μg by the LAL method. |
Purity : |
>95% as determined by SDS-PAGE.>90% as determined by SEC-MALS. |
Storage : |
For long term, the product should be stored at lyophilized state at -20°C or lower.Please protect from light and 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. |