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Your Position: Home > Protein > CRTAM > CRM-C5255

Cynomolgus CRTAM Protein, Fc Tag

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  • Synonym
    CRTAM,CD355
  • Source
    Cynomolgus CRTAM, Fc Tag(CRM-C5255) is expressed from human 293 cells (HEK293). It contains AA Ser 18 - Gly 287 (Accession # XP_005580021.1 ).
    Predicted N-terminus: Ser 18
  • Molecular Characterization
    CRTAM Structure

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

    The protein has a calculated MW of 56.6 kDa. The protein migrates as 66-95 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 Tris with Glycine, Arginine and NaCl, pH7.5 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
CRTAM SDS-PAGE

Cynomolgus CRTAM, 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%.

Bioactivity-ELISA
 CRTAM ELISA

Immobilized Human CADM1, His Tag (Cat. No. CA1-H5225) at 5 μg/mL (100 μL/well) can bind Cynomolgus CRTAM, Fc Tag (Cat. No. CRM-C5255) with a linear range of 0.6-10 ng/mL (QC tested).

Bioactivity-BLI
 CRTAM BLI

Loaded Cynomolgus CRTAM, Fc Tag (Cat. No. CRM-C5255) on Protein A Biosensor, can bind Human CADM1, His Tag (Cat. No. CA1-H5225) with an affinity constant of 37.7 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).

  • Background
    Class I-restricted T cell-associated molecule (CRTAM), a member of nectin family and the immunoglobulin superfamily, is also known as cytotoxic and regulatory T-cell molecule, which is expressed by activated CD8+ and NK T cells. CRTAM is found in spleen, thymus, small intestine, peripheral blood, and surprisingly, in brain where it is highly expressed by Purkinje cells of the cerebellum. The high affinity of CRTAM/IGSF4 adhesion allows CRTAM to disrupt IGSF4 homotypic interactions (3 - 5). IGSF4 and T cell receptor co-engagement of CRTAM-expressing CD8+ cells induces increased IFN-gamma or IL-22 production (3, 4). Furthermore, a role in cancer surveillance through NK cell-mediated rejection of IGSF4-expressing tumors has been proposed.
  • Clinical and Translational Updates

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