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Human TIGIT Protein

  • Synonym
  • Source
    Human TIGIT, His Tag (TIT-H52H3) is expressed from human 293 cells (HEK293). It contains AA Met 22 - Pro 141 (Accession # AAI01290).
    Predicted N-terminus: Met 22
  • Molecular Characterization
    Online(Met 22 - Pro 141) AAI01290

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

    The protein has a calculated MW of 15.0 kDa. The protein migrates as 17-21 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.

    No activity loss was observed after storage at:

    1. 4-8°C for 12 months in lyophilized state;
    2. -70°C for 3 months under sterile conditions after reconstitution.
Human TIGIT, His Tag (Cat. No. TIT-H52H3) SDS-PAGE gel

Human TIGIT, 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%.

Human TIGIT, His TagHuman TIGIT, His Tag (Cat. No. TIT-H52H3) ELISA bioactivity

Immobilized Human TIGIT, His Tag (Cat. No. TIT-H52H3) at 2μg/mL (100 μL/well) can bind Human CD155, Fc Tag (Cat. No. CD5-H5251) with a linear range of 8-128 ng/mL (QC tested).

Human TIGIT, His TagHuman TIGIT, His Tag (Cat. No. TIT-H52H3) ELISA bioactivity

Immobilized Human TIGIT, His Tag (Cat. No. TIT-H52H3) at 1 μg/mL (100 μl/well) can bind Human Nectin-3, Fc Tag (Cat. No. PV3-H5255) with a linear range of 0.08-2.5 μg/mL (Routinely tested).


Anti-Human TIGIT MAb (Mouse IgG1) captured on CM5 chip via Anti-Mouse antibodies surface, can bind Human TIGIT, His Tag (Cat. No. TIT-H52H3) with an affinity constant of 3.93 nM as determined in a SPR assay (Biacore T200) (Routinely tested).

FACS assay shows that recombinant Biotinylated FACS

FACS assay shows that recombinant Human TIGIT Protein, His Tag (Cat. No. TIT-H52H3) can bind to 293T cell overexpressing human CD155. The concentration of TIGIT used is 0.3 μg/ml (Routinely tested).

  • Citations
  • Background
    T-cell immunoreceptor with Ig and ITIM domains (TIGIT) is also known as V-set and immunoglobulin domain-containing protein 9 (VSIG9), V-set and transmembrane domain-containing protein 3 (VSTM3),which belongs to single-pass type I membrane protein containing an immunoglobulin variable domain, a transmembrane domain and an immunoreceptor tyrosine-based inhibitory motif (ITIM). TIGIT is expressed at low levels on peripheral memory and regulatory CD4+ T-cells and NK cells and is up-regulated following activation of these cells (at protein level). TIGIT binds with high affinity to the poliovirus receptor (PVR) which causes increased secretion of IL10 and decreased secretion of IL12B and suppresses T-cell activation by promoting the generation of mature immunoregulatory dendritic cells.
  • References
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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