Human CD28 is an important costimulatory molecule found on all CD4+ T cells and on about half of the CD8+T cells. T cell activities attributed to CD28 include, prevention of anergy, induction of cytokine gene transcription, stabilization of cytokine mRNAs and activation of CD8+ cytotoxic T lymphocytes. The ligands for CD28, identified as CD80 (B7-1) and CD86 (B7-2), are immunoglobulin superfamily monomeric transmembrane glycoproteins of 60kd and 80kd, respectively.
Molecular Structure: A soluble fusion protein consisting of the extracellular (134 aa) domain of human CD28 fused to murine IgG2a Fc (232 aa), with a predicted monomeric molecular weight of 41.8kD.
Transfectant Cell Line: CHO
Functional Application: CD28-muIg fusion protein blocks binding of anti-human CD28 to human tumor cells.
Human CD28-muIg Fusion Protein
Applications:Suitable for use in ELISA. Other applications not tested.
Recommended DilutionOptimal dilutions to be determined by the researcher.
Storage and Stability:May be stored at 4°C. For long-term storage, aliquot and store at 4°C. Do not freeze. Aliquots are stable for at least 6 months. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Further dilutions can be made in assay buffer
仕様
Size：25ug
Source Antigen：CHO cells
Grade：Affinity Purified
Purity：Purified by Protein A affinity chromatography.
Form：Supplied as a liquid in FBS, 50mM Sodium Phosphate pH 7.5, 100mM Potassium Chloride, 150mM NaCl.
