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Your Position: > Protein > TIGIT > TIT-H5254

Human TIGIT Protein, Fc Tag (MALS verified)

  • Synonym
    TIGIT,VSIG9,VSTM3
  • Source
    Human TIGIT, Fc Tag(TIT-H5254) is expressed from human 293 cells (HEK293). It contains AA Met 22 - Pro 141 (Accession # Q495A1-1).
    Predicted N-terminus: Met 22
  • Molecular Characterization
    TIGIT Structure

    This protein carries a human IgG1 Fc tag at the C-terminus.

    The protein has a calculated MW of 39.7 kDa. The protein migrates as 45-54 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.

    >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.
SDS-PAGE
TIGIT SDS-PAGE

Human TIGIT, Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.

SEC-MALS
TIGIT MALS images

The purity of Human TIGIT, Fc Tag (Cat. No. TIT-H5254) is more than 90% and the molecular weight of this protein is around 85-100 kDa verified by SEC-MALS.

Bioactivity-ELISA
 TIGIT ELISA

Immobilized Human CD155, Mouse IgG2a Fc Tag, low endotoxin (Cat. No. CD5-H5254) at 5 μg/mL (100 μL/well) can bind Human TIGIT, Fc Tag (Cat. No. TIT-H5254) with a linear range of 0.6-10 ng/mL (QC tested).

 TIGIT ELISA

Serial dilutions of Human TIGIT Neutralizing antibody were added into Human TIGIT, Fc Tag (Cat. No. TIT-H5254): Biotinylated Human CD155, Fc,Avitag (Cat. No. CD5-H82F6) binding reactions. The half maximal inhibitory concentration (IC50) is 0.55834 μg/mL (Routinely tested).

Bioactivity-BLI
 TIGIT BLI

Loaded Human TIGIT, Fc Tag (Cat. No. TIT-H5254) on Protein A Biosensor, can bind Human CD155, His Tag (Cat. No. CD5-H5223) with an affinity constant of 0.98 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).

Bioactivity-FACS
 TIGIT FACS

FACS assay shows that recombinant Human TIGIT, Fc Tag (Cat. No. TIT-H5254) can bind to 293T cell overexpressing human CD155. The concentration of TIGIT used is 0.1 μg/mL (Routinely tested).

  • 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.
  • Clinical and Translational Updates

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