Based on the high binding affinity between biotin-streptavidin systems, our Streptavidin series products are recommended to use together with biotinylated proteins to get lower non-specific binding results in a shorter time.
This protein carries an Avi tag (Avitag™) at the C-terminus, followed by a polyhistidine tag.
The protein has a calculated MW of 22.8 kDa. The protein migrates as 35-45 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 . Normally trehalose is added as protectant before lyophilization.
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 OX40, Avitag,His Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.
The purity of Biotinylated Human OX40, Avitag,His Tag (Cat. No. TN4-H82E4) is more than 90% and the molecular weight of this protein is around 35-50 kDa verified by SEC-MALS.
Immobilized Anti-OX40 MAb, Human IgG1 at 2 μg/mL (100 μL/well) can bind Biotinylated Human OX40, Avitag,His Tag (Cat. No. TN4-H82E4) with a linear range of 1-5 ng/mL (QC tested).
Immobilized Human CTLA-4, His Tag, active dimer (Cat. No.CT4-H52H9) at 2 μg/mL, add increasing concentrations of CTLA-4 x OX40 Bispecific Antibody in 50% Human serum and then add Biotinylated Human OX40, Avitag,His Tag(Cat. No. TN4-H82E4) at 1 μg/mL. Detection was performed using HRP-conjugated streptavidin with sensitivity of 4 ng/mL (Intact assay, Routinely tested).
Loaded Biotinylated Human OX40, Avitag,His Tag (Cat. No. TN4-H82E4) on SA Biosensor, can bind Anti-OX40 MAb (Human IgG1) with an affinity constant of 0.115 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Loaded Biotinylated Human OX40, Avitag,His Tag (Cat. No. TN4-H82E4) on SA Biosensor, can bind Human OX40 Ligand, His Tag (active trimer) (MALS verified) (Cat. No. OXL-H52Q8) with an affinity constant of 0.127 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
ANTI-OX40 ANTIBODY AND USE THEREOF
Authors: A T sun, et al
Journal: US20200140562A1 2020
Application: MSD-SET Kinetic Assay
Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.
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