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Your Position: Home > Immune Checkpoint Proteins > B7-H5 > B75-H5258

Human B7-H5 / Gi24 / VISTA Protein, Mouse IgG2a Fc Tag, low endotoxin

  • Synonym
    B7-H5,SISP1,Gi24,VISTA
  • Source
    Human B7-H5, Mouse IgG2a Fc Tag, low endotoxin (B75-H5258) is expressed from human 293 cells (HEK293). It contains AA Phe 33 - Ala 194 (Accession # AAH20568.1).
    Predicted N-terminus: Phe 33
  • Molecular Characterization
    Online(Phe 33 - Ala 194) AAH20568.1

    This protein carries a mouse IgG2a Fc tag at the C-terminus.

    The protein has a calculated MW of 45.0 kDa. The protein migrates as 55-70 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Endotoxin
    Less than 0.1 EU per μg by the LAL method.
  • Purity

    >95% as determined by SDS-PAGE.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, pH7.5. 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-H5, Mouse IgG2a Fc Tag, low endotoxin (Cat. No. B75-H5258) SDS-PAGE gel

Human B7-H5, Mouse IgG2a Fc Tag, low endotoxin 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-H5, Mouse IgG2a Fc Tag, low endotoxinHuman B7-H5, Mouse IgG2a Fc Tag, low endotoxin (Cat. No. B75-H5258) ELISA bioactivity

Immobilized Biotinylated Human VSIG3, Fc,Avitag (Cat. No. VS3-H82F9) at 5 μg/mL (100 μL/well) on streptavidin precoated (0.5 μg/well) plate, can bind Human B7-H5, Mouse IgG2a Fc Tag, low endotoxin (Cat. No. B75-H5258) with a linear range of 0.039-0.625 μg/mL (QC tested).

Bioactivity-SPR
Human_FcRn_Heterodimer_Protein_SPR

Human B7-H5, Mouse IgG2a Fc Tag, low endotoxin (Cat. No. B75-H5258) Captured on CM5 chip via anti-mouse antibodies surface can bind Human VSIG3, Fc Tag (Cat. No. VS3-H5258) with an affinity constant of 8.87 μM as determined in a SPR assay (Biacore T200) (Routinely tested).

Bioactivity-BLI
Human_FcRn_Heterodimer_Protein_Bli

Loaded Biotinylated Human VSIG3, Fc,Avitag (Cat. No. VS3-H82F9) on SA Biosensor, can bind Human B7-H5, Mouse IgG2a Fc Tag, low endotoxin (Cat. No. B75-H5258) with an affinity constant of 2.6 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).

  • Background
    Platelet receptor Gi24, also known as B7-H5 and stress-induced secreted protein-1 (Sisp-1), is a protein that in humans is encoded by the C10orf54 gene, which contains 1 Ig-like (immunoglobulin-like) domain. As for C10orf54 gene, C10orf54 appears to positively interact with BMP-4, potentiating BMP signaling and the transition from an undifferentiated to a differentiated state on ESCs. Human C10orf54 undergoes proteolytic cleavage by MT1-MMP, generating a soluble 30 kDa extracellular fragment plus a 25-30 kDa membrane-bound fragment.
  • References
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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