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Biotinylated Human CD8A&CD8B Heterodimer Protein, His,Avitag&Tag Free, produced by co-expression of CD8 alpha and CD8 beta, has a calculated MW of 26.0 kDa (CD8 alpha) and 22.1 kDa (CD8 beta). Subunit CD8 alpha is fused with an acidic tail at the C-terminus and followed by a polyhistidine tag and an Avi tag (Avitag™) and subunit CD8 beta contains no tag but a basic tail at the C-terminus. The protein migrates as 33 kDa and 35 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
>90% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
Lyophilized from 0.22 μm filtered solution in PBS, 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 avoid repeated freeze-thaw cycles.
This product is stable after storage at:
Biotinylated Human CD8A&CD8B Heterodimer Protein, His,Avitag&Tag Free on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90% (With Star Ribbon Pre-stained Protein Marker).
The purity of Biotinylated Human CD8A&CD8B Heterodimer Protein, His,Avitag&Tag Free (Cat. No. CDA-H82W7) is more than 90% and the molecular weight of this protein is around 50-65 kDa verified by SEC-MALS.
Immobilized Biotinylated Human CD8A&CD8B Heterodimer Protein, His,Avitag&Tag Free (Cat. No. CDA-H82W7) at 1 μg/mL (100 μL/well) on streptavidin (Cat. No. STN-N5116) precoated (0.5 μg/well) plate can bind Anti-CD8 alpha Antibody, Human IgG1 with a linear range of 0.1-1 ng/mL (QC tested).
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