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CD28 Mouse anti-Human, PerCP-Cyanine5.5, Clone: CD28.2, eBioscience™ Non-distribution product as customer accommodation.

Mouse Monoclonal Antibody

Manufacturer:  Invitrogen 45028941

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Catalog No. 50-157-88


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Description

Description

Description: The CD28.2 monoclonal antibody reacts with the human CD28 molecule, a 44 kDa homodimer expressed by thymocytes, mature T cells and plasma cells. CD28 is a ligand for CD80 (B7-1) and CD86 (B7-2) and is a potent co-stimulator of T cells. Signaling through CD28 augments IL-2 and IL-2 receptor expression as well as cytotoxicity of CD3-activated T cells. Applications Reported: This CD28.2 antibody has been reported for use in flow cytometric analysis. Applications Tested: This CD28.2 antibody has been pre-titrated and tested by flow cytometric analysi sof normal human peripheral blood cells. This can be used at 5 µL (0.125 µg) per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. Excitation: 488 nm; Emission: 695 nm; Laser: Blue Laser. Filtration: 0.2 µm post-manufacturing filtered.

CD28 antigen is a 44 kDa disulfide linked homodimeric T cell specific surface glycoprotein. CD28 is a cell adhesion molecule of the immunoglobulin superfamily which is constitutively expressed on most peripheral blood T lymphocytes. Moreover, CD28 is the critical T cell costimulatory receptor that provides the cell the important second activation signal by binding CD80 and CD86 which are expressed by antigen presenting cells. In addition to its co-stimulation role, CD28 functions by preventing T cells from entering an anergic-hyporesponsive state or from undergoing premature apoptotic cell death. In murine peripheral lymphoid organs and in the blood, all CD4+ and CD8+ T cells express CD28. In the thymus, CD28 expression is highest on immature CD3-, CD8+ and CD4+8+ cells, and on CD4-8- cells that express alpha/beta and gamma/delta TCR. The level of CD28 on mature CD4+ and CD8+ alpha/beta TCR+ thymocytes is two- to fourfold lower than on the immature cells. Diseases associated with CD28 dysfunction include mycosis fungiodes and Sezary’s Disease.
Specifications

Specifications

CD28
Monoclonal
5 μL/Test
PBS with 0.1% gelatin, 0.2% BSA and 0.09% sodium azide; pH 7.2
P10747
MGC138290, Tp44, CD28 antigen, T-cell-specific surface glycoprotein CD28
Mouse
Affinity chromatography
RUO
Antibody
Monoclonal
Human
Flow Cytometry
CD28.2
PerCP-Cyanine5.5
CD28
Liquid
CD28
IgG1, kappa
25 Tests
4° C, store in dark, DO NOT FREEZE!
Primary
940
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