Recombinant Human TNFRSF4 protein, C-Avi-His Tag, Biotinylated

Product Description

Cat

IMP-015

Official Symbol

TNFRSF4

Product Overview

Biotinylated Recombinant Human TNFRSF4 protein(AA Leu 29-Ala 216)(Accession # NP_003318.1) is expressed from human 293 cells (HEK293). This protein carries an Avi tag at the C-terminus, followed by a polyhistidine tag.

Expression System

HEK293

Species

Human

Tag

C-Avi-His Tag

Form

Lyophilized from sterile PBS, pH7.4, 10% trehalose.

Conjugate

Biotinylated

Molecular Mass

This protein carries an Avi tag 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.

Protein length

Leu 29-Ala 216

Endotoxin

Less than 1.0 EU per ug by the LAL method.

Purity

>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.

Storage

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: -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 mg/ml. Centrifuge the vial at 4ºC before opening to recover the entire contents.

SDS-PAGE

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%.

SEC-MALS 1

The purity of Biotinylated Human OX40, Avitag,His Tag was more than 90% and the molecular weight of this protein is around 35-50 kDa verified by SEC-MALS.

Bioactivity-ELISA 1

Immobilized Anti-OX40 MAb, Human IgG1 at 2 ug/mL (100 uL/well) can bind Biotinylated Human OX40, Avitag,His Tag with a linear range of 1-5 ng/mL.

Bioactivity-ELISA 2

Immobilized Biotinylated Human OX40, Avitag,His Tag at 1 ug/mL (100 uL/well) on Streptavidin precoated (0.5 ug/well) plate, can bind Human OX40 Ligand, Fc Tag with a linear range of 0.2-10 ng/mL.

Bioactivity-ELISA 3

Immobilized Human CTLA-4, His Tag, active dimer at 2 ug/mL, add increasing concentrations of CTLA-4 x OX40 Bispecific Antibody in 50% Human serum and then add Biotinylated Human OX40, Avitag,His Tag at 1 ug/mL. Detection was performed using HRP-conjugated streptavidin with sensitivity of 4 ng/mL (Intact assay, Routinely tested).

Bioactivity-BLI 1

Loaded Biotinylated Human OX40, Avitag,His Tag 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).

Bioactivity-BLI 2

Loaded Biotinylated Human OX40, Avitag,His Tag on SA Biosensor, can bind Human OX40 Ligand, His Tag (active trimer) (MALS verified) with an affinity constant of 0.127 nM as determined in BLI assay (ForteBio Octet Red96e).

Data Sheet MSDS

Datasheet MSDS

For research or industrial raw materials, not for personal medical use!

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