Biotinylated Cynomolgus B7-H2 / ICOSLG Protein, His,Avitag™ (MALS verified)

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Cat. No. / Size
Price
Qty
B72-C82E3-25ug
$360.00
B72-C82E3-200ug
$1565.00
ETA of in-stock products:2 business days

Product Details

  • Synonyms

    ICOSLG, B7-H2, B7H2, B7RP-1, B7RP1, CD275, GL50, ICOS-L, ICOSL, LICOS, ICOS ligand

  • Source

    Biotinylated Cynomolgus B7-H2 Protein, His,Avitag (B72-C82E3) is expressed from human 293 cells (HEK293). It contains AA Asp 19 - Thr 256 (Accession # XP_005548617.1).

    Predicted N-terminus: Asp 19

    Request for sequence
  • Molecular Characterization

    B7-H2 Structure

    Other Tags and Version Biotin & Other Labeled Version

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

    The protein has a calculated MW of 30.3 kDa. The protein migrates as 43-65 kDa when calibrated against Star Ribbon Pre-stained Protein Marker 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 / rFC method.

  • Purity

    >90% 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 3 months under sterile conditions after reconstitution.
  • ACRO Quality Management System

    1. QMS(ISO, GMP)
    2. Quality Advantages
    3. Quality Control Process

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Performance Data

  • SDS-PAGE

    B7-H2 SDS-PAGE

    Biotinylated Cynomolgus B7-H2 Protein, His,Avitag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90% (With Star Ribbon Pre-stained Protein Marker).

  • SEC-MALS

    B7-H2 SEC-MALS

    The purity of Biotinylated Cynomolgus B7-H2 Protein, His,Avitag (Cat. No. B72-C82E3) is more than 90% and the molecular weight of this protein is around 40-60 kDa verified by SEC-MALS.

    Report
  • Bioactivity-ELISA

     B7-H2 ELISA

    Immobilized Human ICOS, Fc Tag (Cat. No. ICS-H5258) at 5 μg/mL (100 μL/well) can bind Biotinylated Cynomolgus B7-H2 Protein, His,Avitag (Cat. No. B72-C82E3) with a linear range of 0.05-1 ng/mL (QC tested).

    Protocol
  •  B7-H2 ELISA

    Immobilized Prezalumab at 1 μg/mL (100 μL/well) can bind Biotinylated Cynomolgus B7-H2 Protein, His,Avitag (Cat. No. B72-C82E3) with a linear range of 0.06-2 ng/mL (Routinely tested).

    Protocol

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Background

ICOS ligand (ICOSLG) is also known as B7 homolog 2 (B7-H2), B7-related protein 1 (B7RP-1) and CD antigen CD275, which belongs to the immunoglobulin superfamily and BTN/MOG family. ICOSLG contains one Ig-like C2-type (immunoglobulin-like) domain and one Ig-like V-type (immunoglobulin-like) domain. Isoform 1 is widely expressed, while isoform 2 is detected only in lymph nodes, leukocytes and spleen. B7-H2 is ligand for the T-cell-specific cell surface receptor ICOS. B7-H2 acts as a costimulatory signal for T-cell proliferation and cytokine secretion and induces also B-cell proliferation and differentiation into plasma cells. B7-H2 could play an important role in mediating local tissue responses to inflammatory conditions, as well as in modulating the secondary immune response by co-stimulating memory T-cell function.

Recent Advances

 
Drug Development Progress
  • English Name:

    ICOS ligand

  • Category:

  • Approved Drugs:

    0 Details

  • Drugs in Clinical Trials:

    1 Details

  • Highest Development Stage:

    Phase 2 Clinical

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