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Your Position: Home > Immune Checkpoint Proteins > B7-H4 > B74-H82E2

Biotinylated Human B7-H4 Protein, Avitag™,His Tag (recommended for biopanning)

  • Synonym
    B7-H4,VTCN1,B7S1,B7h.5
  • Source
    Biotinylated Human B7-H4, Avitag,His Tag (recommended for biopanning) (B74-H82E2) is expressed from human 293 cells (HEK293). It contains AA Phe 29 - Ala 258 (Accession # NP_078902).
    Predicted N-terminus: Phe 29
  • Molecular Characterization
    Online(Phe 29 - Ala 258) NP_078902

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

    The protein has a calculated MW of 28 kDa. The protein migrates as 45-65 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Application
    B74-H82E2 works best for experiments that test the binding between B7-H4 and candidate antibodies, such as biopanning and other relevant assays.
  • Biotinylation
    Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Purity

    >90% as determined by SDS-PAGE.

  • Formulation

    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.

  • 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 3 months under sterile conditions after reconstitution.
SDS-PAGE
Biotinylated Human B7-H4, Avitag,His Tag (recommended for biopanning) (Cat. No. B74-H82E2) SDS-PAGE gel

Biotinylated Human B7-H4, Avitag,His Tag (recommended for biopanning) on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 90%.

Bioactivity-ELISA
Biotinylated Human B7-H4, Avitag,His Tag (recommended for biopanning)Biotinylated Human B7-H4, Avitag,His Tag (recommended for biopanning) (Cat. No. B74-H82E2) ELISA bioactivity

Immobilized Anti-Human B7-H4 MAb, Human IgG1 at 2 μg/mL (100 μL/well) can bind Biotinylated Human B7-H4, Avitag,His Tag (recommended for biopanning) (Cat. No. B74-H82E2) with a linear range of 3-48 ng/mL (QC tested).

  • Background
    V-set domain-containing T-cell activation inhibitor 1 (VTCN1) is also known as Immune costimulatory protein B7-H4, Protein B7S1, T-cell costimulatory molecule B7x, B7H4, which belongs to the immunoglobulin superfamily and BTN/MOG family. VTCN1 contains two Ig-like V-type (immunoglobulin-like) domains. The expression of VTCN1 is up-regulated by IL6 and IL10 and is inhibited by GM-CSF and IL4 on antigen-presenting cells (APCs). VTCN1 / B7-H4 negatively regulates T-cell-mediated immune response by inhibiting T-cell activation, proliferation, cytokine production and development of cytotoxicity. VTCN1 involved in promoting epithelial cell transformation.
  • Clinical and Translational Updates
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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Order Details

Price(USD) : $350.00

Price(USD) : $1380.00

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  • Number of Drugs in Clinical Trials:1 Details
  • Latest Research Phase:Phase 2 Clinical

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