CD28 Protein (CD28) (His-Avi Tag,Biotin)
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- Target See all CD28 Proteins
- CD28
- Protein Type
- Recombinant
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Origin
- Human, Cynomolgus, Rhesus Monkey
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Source
- 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.
- Top Product
- Discover our top product CD28 Protein
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- Restrictions
- For Research Use only
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- 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
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- 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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