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CD28 Protein (CD28) (His-Avi Tag,Biotin)

CD28 Origin: Human, Cynomolgus, Rhesus Monkey Host: HEK-293 Cells Recombinant > 95% as determined by Tris-Bis PAGE,> 95% as determined by HPLC
Catalog No. ABIN7274256
  • Target See all CD28 Proteins
    CD28
    Protein Type
    Recombinant
    Origin
    • 15
    • 10
    • 8
    • 6
    • 3
    • 2
    • 1
    • 1
    • 1
    • 1
    Human, Cynomolgus, Rhesus Monkey
    Source
    • 17
    • 5
    • 4
    • 2
    • 2
    • 1
    • 1
    • 1
    • 1
    HEK-293 Cells
    Purification tag / Conjugate
    This CD28 protein is labelled with His-Avi Tag,Biotin.
    Sequence
    Asn19-Pro152
    Purity
    > 95% as determined by Tris-Bis PAGE,> 95% as determined by HPLC
    Sterility
    0.22 μm filtered
    Endotoxin Level
    Less than 1EU per μg by the LAL method.
    Biological Activity Comment
    Immobilized Anti-CD28 Antibody, hFc Tag at 2μg/ml (100μl/well) on the plate. Dose response curve for Biotinylated Human/Cynomolgus/Rhesus macaque CD28, His Tag with the EC50 of 24.4ng/ml determined by ELISA. See testing image for detail.
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    Discover our top product CD28 Protein
  • Restrictions
    For Research Use only
  • Format
    Lyophilized
    Reconstitution
    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.
    Buffer
    Lyophilized from 0.22μm filtered solution in PBS ( pH 7.4). Normally 5 % trehalose is added as protectant before lyophilization.
    Storage
    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
    CD28
    Alternative Name
    CD28 (CD28 Products)
    Synonyms
    Tp44 Protein, CD28RNA Protein, cd28 Protein, CD28 molecule Protein, CD28 antigen Protein, Cd28 molecule Protein, CD28 molecule L homeolog Protein, CD28 Protein, Cd28 Protein, cd28.L Protein
    Background
    CD28 antigen (Tp44), CD28 Molecule, CD28, MGC138290,CD28 is the receptor for CD80 (B7-1) and CD86 (B7-2) proteins.When activated by Toll-like receptor ligands, the CD80 expression is upregulated in antigen presenting cells (APCs). The CD86 expression on antigen presenting cells is constitutive. CD28 is the only B7 receptor constitutively expressed on naive T cells.
    Molecular Weight
    18.2 kDa. Due to glycosylation, the protein migrates to 38-50 kDa based on Tris-Bis PAGE result.
    UniProt
    P10747
    Pathways
    TCR Signaling, Fc-epsilon Receptor Signaling Pathway, EGFR Signaling Pathway, Regulation of Leukocyte Mediated Immunity, Positive Regulation of Immune Effector Process, Production of Molecular Mediator of Immune Response
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