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Your Position: 홈 > ADC > TNF-alpha > TNA-H82E3

Biotinylated Human TNF-alpha Protein, His,Avitag™ (active trimer) (MALS verified)

INTRODUCTION
QC & Assay Protocol
Citation & Background
  • Synonym
    DIF,TNF-alpha,TNFA,TNFSF2,cachexin,cachectin,TNFα
  • Source
    Biotinylated Human TNF-alpha, His,Avitag(TNA-H82E3) is expressed from human 293 cells (HEK293). It contains AA Val 77 - Leu 233 (Accession # NP_000585.2 ).
    Predicted N-terminus: Val 77
    Request for sequence
  • Molecular Characterization
    TNF-alpha Structure

    This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™)

    The protein has a calculated MW of 20.0 kDa. The protein migrates as 21 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Labeling
    Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
  • Protein Ratio
    Passed as determined by the HABA assay / binding ELISA.
  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Purity

    >95% as determined by SDS-PAGE.

    >90% as determined by SEC-MALS.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

    Contact us for customized product form or formulation.

  • Reconstitution

    Please see Certificate of Analysis for specific instructions.

    For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

  • 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:

    1. -20°C to -70°C for 12 months in lyophilized state;
    2. -70°C for 12 months under sterile conditions after reconstitution.
SDS-PAGE
TNF-alpha SDS-PAGE

Biotinylated Human TNF-alpha, His,Avitag 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
TNF-alpha MALS images

The purity of Biotinylated Human TNF-alpha, His,Avitag(Cat. No. TNA-H82E3) is more than 90% and the molecular weight of this protein is around 55-70 kDa verified by SEC-MALS.

Report
Bioactivity-ELISA
TNF-alpha ELISA

Immobilized Humira at 5 μg/mL (100 μL/well) can bind Biotinylated Human TNF-alpha, His,Avitag (Cat. No. TNA-H82E3) with a linear range of 0.1-3 ng/mL (QC tested).

Protocol
TNF-alpha ELISA

Immobilized Human TNFR2, His Tag (Cat. No. TN2-H5227) at 5 μg/mL (100 μL/well) can bind Biotinylated Human TNF-alpha, His,Avitag (Cat. No. TNA-H82E3) with a linear range of 0.6-10 ng/mL (Routinely tested).

Protocol
TNF-alpha ELISA

Immobilized Human TNFR1, Fc Tag (Cat. No. TN1-H5251) at 5 μg/mL (100 μL/well) can bind Biotinylated Human TNF-alpha, His,Avitag (Cat. No. TNA-H82E3) with a linear range of 0.2-5 ng/mL (Routinely tested).

Protocol
Bioactivity-Bioactivity CELL BASE
TNF-alpha CELL

Biotinylated Human TNF-alpha, His,Avitag (Cat.No. TNA-H82E3) induces cytotoxicity effect on the WEH1-13VAR cells in the presence of the metabolic inhibitor actinomycin D. The EC50 for this effect is 0.029-0.052 ng/mL (Routinely tested).

Protocol
TNF-alpha CELL

Neutralization assay shows that the cytotoxicity effect of Biotinylated Human TNF-alpha, His,Avitag (Cat. No. TNA-H82E3) was inhibited by increasing concentration of Adalimumab. The concentration of TNF-alpha used is 1 ng/mL. The IC50 is 7 ng/mL (Routinely tested).

Protocol
  • Background
    Tumor necrosis factor alpha (TNFα) is a cytokine produced primarily by monocytes and macrophages. It is found in synovial cells and macrophages in the tissues.The primary role of TNFα is in the regulation of immune cells. TNFα is able to induce apoptotic cell death, to induce inflammation, and to inhibit tumorigenesis and viral replication. Dysregulation of TNFα production has been implicated in a variety of human diseases, including major depression, Alzheimers disease and cancer. Recombinant TNFα is used as an immunostimulant under the INN tasonermin. TNFα can be produced ectopically in the setting of malignancy and parallels parathyroid hormone both in causing secondary hypercalcemia and in the cancers with which excessive production is associated.
  • Clinical and Translational Updates

  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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ETD of in-stock products: 4 business days

가격(KRW) : 525,000

가격(KRW) : 2,280,000

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