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This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 22.0 kDa. The protein migrates as 35-45 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.
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:
Human OX40 Protein, His Tag 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 Human OX40 Protein, His Tag (Cat. No. OX0-H5224) is more than 85% and the molecular weight of this protein is around 32-44 kDa verified by SEC-MALS.
Immobilized Human OX40 Protein, His Tag (Cat. No. OX0-H5224) at 2 μg/mL (100 μL/well) can bind Human OX40 Ligand, Fc Tag, premium grade (Cat. No. OXL-H5266) with a linear range of 0.1-2 ng/mL (QC tested).
Immobilized Human OX40 Protein, His Tag (Cat. No. OX0-H5224) at 2 μg/mL (100 μL/well) can bind Monoclonal Anti-Human OX40 Antibody, Human IgG1 with a linear range of 0.1-2 ng/mL (Routinely tested).
Immobilized Human OX40 Protein, His Tag (Cat. No. OX0-H5224) at 2 μg/mL, add increasing concentrations of CTLA-4 x OX40 bispecific antibody in 50% Human serum and then add Biotinylated Human CTLA-4, Fc,Avitag (Cat. No. CT4-H82F3) at 0.2 μg/mL. Detection was performed using HRP-conjugated streptavidin with sensitivity of 4 ng/mL (Intact assay, Routinely tested).
Loaded Human OX40 Ligand, His Tag (Cat. No. OXL-H52Q8) on AR2G Biosensor, can bind Human OX40 Protein, His Tag (Cat. No. OX0-H5224) with an affinity constant of 0.15 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Loaded Anti-OX40 MAb(Human IgG1) on AHC Biosensor, can bind Human OX40 Protein, His Tag (Cat. No. OX0-H5224) with an affinity constant of 6.03 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
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