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This protein carries no "tag"
The protein has a calculated MW of 13.8 kDa.
PE
Excitation Wavelength: 488 nm / 561 nm
Emission Wavelength: 575 nm
Lyophilized from 0.22 μm filtered solution in PBS, 1.5% BSA, 0.03% ProClin300, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
For long term storage, 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 storage at:
-20°C to -70°C for 24 months in lyophilized state;
-20°C for 6 months after reconstitution;
2-8 °C for 6 months under sterile conditions after reconstitution.
5e5 of Anti-CD19 CAR-293 cells were stained with 100 μL of 20 μg/mL Biotinylated Human CD19 (20-291), Fc,Avitag, premium grade (Cat. No. CD9-H82F6) and negative control protein respectively, washed and then followed with 2.5 μg/mL of Streptavidin-PE (Cat. No. STN-NP119) and analyzed with FACS. PE signal was used to evaluate the binding activity (QC tested).
5e5 of Anti-CD19 CAR-293 cells were stained with 100 μL of 20 μg/mL Biotinylated Human CD19 (20-291), Fc,Avitag, premium grade (Cat. No. CD9-H82F6) and negative control protein respectively, washed and then followed with 2.5 μg/mL of Streptavidin Protein-PE (ACROBiosystems & Brand 1 & Brand 2) and analyzed with GraphPad Prism 5. The results showed that the activity of PE-SA of ACROBiosystems is higher than other two competing brands (Routinely tested).
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