CD28 Antibody (37.51.1) [FITC] Summary
Mouse T lymphoma EL-4 cells.
Reacts with mouse CD28 found predominantly on T cell subsets and activated B cells.
Golden Syrian Hamster
Protein A purified
Test in a species/application not listed above to receive a full credit towards a future purchase.
- Flow Cytometry 1:10-1:1000
Packaging, Storage & Formulations
Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
PBS (pH 7.4) and 1.0% BSA
0.09% Sodium Azide
Protein A purified
Alternate Names for CD28 Antibody (37.51.1) [FITC]
- CD28 antigen (Tp44)
- CD28 antigen
- CD28 molecule
- T-cell-specific surface glycoprotein CD28
Human CD28 antigen is a 44 kDa disulfide linked homodimeric T cell specific surface glycoprotein. It is a cell adhesion molecule of the immunoglobulin superfamily which is constitutively expressed on most peripheral blood T lymphocytes (approximately 95% of CD4+ cells and 50% of CD8+ cells). Mature thymocytes exhibit higher levels of CD28 than the immature cells. Activation of T cells results in enhanced CD28 expression. T cell activation requires two combined signals provided by antigen presenting cells. The first is mediated via the T cell receptor following its interaction with antigenic peptide MHC complexes, and the second is delivered by accessory or costimulating molecules through their counter receptors on T lymphocytes. CD28 bears structural homology to CTLA 4 which is expressed at very low levels on the surface of CD4+ and CD8+ peripheral blood cells only following activation. CD28 is the natural receptor for the B7/BB 1 ligand (CD80) a 55-60 kDa glycoprotein which is expressed on activated B lymphocytes, on dendritic cells and on interferon gamma treated monocytes. The binding of B7 1/BB 1 molecules to CD28 is involved in T lymphocyte activation and in the initiation and maintenance of chronic inflammation.
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed
for 1 year from date of receipt.
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