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CTLA4 Protein (His tag)

CTLA4 Origin: Human Host: HEK-293 Cells Recombinant > 95% as determined by Tris-Bis PAGE,> 95% as determined by HPLC
Catalog No. ABIN7274435
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  • Target See all CTLA4 Proteins
    CTLA4 (Cytotoxic T-Lymphocyte-Associated Protein 4 (CTLA4))
    Protein Type
    • 31
    • 15
    • 6
    • 5
    • 4
    • 4
    • 1
    • 1
    • 1
    • 26
    • 15
    • 7
    • 4
    • 3
    • 2
    • 2
    • 1
    • 1
    • 1
    HEK-293 Cells
    Purification tag / Conjugate
    This CTLA4 protein is labelled with His tag.
    > 95% as determined by Tris-Bis PAGE,> 95% as determined by HPLC
    0.22 μm filtered
    Endotoxin Level
    Less than 1EU per μg by the LAL method.
    Biological Activity Comment
    Immobilized Human CTLA-4, His Tag at 0.5μg/ml (100μl/Well) on the plate. Dose response curve for Anti-CTLA-4 Antibody, hFc Tag with the EC50 of 20.1ng/ml determined by ELISA. See testing image for detail.
  • Restrictions
    For Research Use only
  • Format
    Centrifuge tubes before opening. Reconstituting to a concentration more than 100 μg/mL is recommended (usually we use 1 mg/mL solution for lyophilization). Dissolve the lyophilized protein in distilled water.
    Lyophilized from 0.22μm filtered solution in PBS ( pH 7.4). Normally 8 % trehalose is added as protectant before lyophilization.
    4 °C,-80 °C
    Storage Comment
    Reconstituted protein stable at -80°C for 12 months, 4°C for 1 week. Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
    Expiry Date
    12 months
  • Target
    CTLA4 (Cytotoxic T-Lymphocyte-Associated Protein 4 (CTLA4))
    Alternative Name
    CTLA-4 (CTLA4 Products)
    CTLA-4 Protein, CTLA4 Protein, CD152 Protein, Cd152 Protein, Ctla-4 Protein, Ly-56 Protein, CD Protein, CELIAC3 Protein, GRD4 Protein, GSE Protein, IDDM12 Protein, sCTLA4 Protein, cytotoxic T-lymphocyte associated protein 4 Protein, cytotoxic T-lymphocyte-associated protein 4 Protein, CTLA4 Protein, Ctla4 Protein
    CTLA4, CD152, ICOS, CELIAC3, GRD4, GSE, ALPS5, IDDM12,CTLA-4 (cytotoxic T-lymphocyte-associated protein 4), also known as CD152, is a protein receptor that, functioning as an immune checkpoint, downregulates immune responses.CTLA4 is constitutively expressed in regulatory T cells but only upregulated in conventional T cells after activation - a phenomenon which is particularly notable in cancers. It acts as an "off" switch when bound to CD80 or CD86 on the surface of antigen-presenting cells.
    Molecular Weight
    14.3 kDa. Due to glycosylation, the protein migrates to 28-35 kDa based on Tris-Bis PAGE result.
    Cancer Immune Checkpoints
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