Thermo Fisher Scientific CD28 Monoclonal Antibody (CD28.2), NovaFluor Yellow 755, eBioscience

Applications

• Flow Cytometry (Flow)

Tested Dilution: 5 µL (0.8 µg)/test

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Product Specifications

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Available Formats

• Unconjugated
• Alexa Fluor 700
• APC
• APC-eFluor 780
• Biotin
• Brilliant UV 395 / 615 / 737
• Brilliant Violet 480 / 650 / 786
• eFluor 450
• FITC
• Functional Grade
• NovaFluor Blue 610-70S / 660-120S / 690
• NovaFluor Red 710 / 725 / 755
• NovaFluor Yellow 660
• PE / PE-Cyanine7 / PE-eFluor 610
• PerCP-Cyanine5.5
• Super Bright 436 / 600 / 645
• Request custom conjugation

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Product Specific Information

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 acts as a ligand for CD80 (B7-1) and CD86 (B7-2), serving as a potent co-stimulator of T cells. Signaling through CD28 enhances IL-2 and IL-2 receptor expression and cytotoxicity of CD3-activated T cells.

Each product contains:

• 1 vial of NovaFluor conjugate
• 1 vial of CellBlox Plus Blocking Buffer

Applications Reported: Flow cytometric analysis
Applications Tested: Pre-titrated for flow cytometric analysis of normal human peripheral blood cells (5 µL per test; 10⁵–10⁸ cells/test).

NovaFluor dyes are not compatible with DNA intercalating viability dyes (e.g., propidium iodide, 7-AAD, DAPI).
Use Invitrogen LIVE/DEAD Fixable Dead Cell stains for viability assessment.

The NovaFluor conjugate ships with CellBlox Plus Blocking Buffer (Cat. No. C001T06F01), which improves staining performance.
Add 5 µL per sample to antibody cocktails or single-color controls (per 100 µL cell sample).

NovaFluor conjugates utilize Phiton™ technology, enabling engineered fluorescent signatures with minimized spillover and spread.

Excitation: 552 nm
Emission: 690 nm
Laser: 561 nm (Yellow Laser)

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Target Information

CD28 antigen is a 44 kDa disulfide-linked homodimeric T cell surface glycoprotein of the immunoglobulin superfamily. It provides the critical co-stimulatory signal for T cell activation by binding CD80 and CD86 on antigen-presenting cells.
CD28 prevents T cells from entering anergic or apoptotic states. In mice, all CD4+ and CD8+ T cells express CD28; expression varies by thymocyte maturation stage.
Diseases associated with CD28 dysfunction include mycosis fungoides and Sezary’s Disease.

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For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.

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