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Your Position: Home > Immune Checkpoint Proteins > B7-H3 (4Ig) > B7B-H52E7

Human B7-H3 (4Ig) / B7-H3b Protein, His Tag

  • Synonym
    4Ig-B7-H3,B7-H3,CD276,PSEC0249,UNQ309/PRO352,B7 homolog 3
  • Source
    Human B7-H3 (4Ig), His Tag (B7B-H52E7) is expressed from human 293 cells (HEK293). It contains AA Gly 27 - Thr 461 (Accession # Q5ZPR3-1).
    Predicted N-terminus: Gly 27
  • Molecular Characterization
    Online(Gly 27 - Thr 461) Q5ZPR3-1

    This protein carries a polyhistidine tag at the C-terminus.

    The protein has a calculated MW of 48.5 kDa. The protein migrates as 65-80 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Purity

    >95% 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
Human B7-H3 (4Ig), His Tag (Cat. No. B7B-H52E7) SDS-PAGE gel

Human B7-H3 (4Ig), 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%.

Bioactivity-ELISA
Human B7-H3 (4Ig), His TagHuman B7-H3 (4Ig), His Tag (Cat. No. B7B-H52E7) ELISA bioactivity

Immobilized Human B7-H3 (4Ig), His Tag (Cat. No. B7B-H52E7) at 2 μg/mL (100 μL/well) can bind Monoclonal Anti-Human B7-H3 / B7-H3 (4Ig) Antibody, Human IgG1 with a linear range of 0.3-5 ng/mL (QC tested).

Human B7-H3 (4Ig), His TagHuman B7-H3 (4Ig), His Tag (Cat. No. B7B-H52E7) ELISA bioactivity

Immobilized Monoclonal Anti-Human B7-H3 / B7-H3 (4Ig) Antibody, Human IgG1 at 2 μg/mL (100 μL/well) can bind Human B7-H3 (4Ig), His Tag (Cat. No. B7B-H52E7) with a linear range of 1-10 ng/mL (Routinely tested).

Bioactivity-Cell based assay
Human FcRn Heterodimer Protein Cell_Base

Human B7-H3 (4Ig), His Tag (Cat. No. B7B-H52E7) inhibits Anti-CD3-induced proliferation of PBMC. The EC50 for this effect is 7.95 μg/mL (Routinely tested).

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Price(USD) : $300.00

Price(USD) : $1980.00

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