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CyFlow™ CD28 Low Endotoxin

CyFlow™ CD28 Low Endotoxin
Antigen: CD28
Alternative Name: Tp44
Clone: 37.51
Application: Flow cytometry, Functional assays, Immunocytochemistry, Immunohistochemistry (frozen sections), Immunoprecipitation
Format/Fluorochrome: Low Endotoxin
Target Species: Mouse
Field of Interest: Immunophenotyping, MHC
Species of Origin: Hamster
Regulatory Status: RUO
Clonality: monoclonal
Isotype: IgG
Order number: CN951297

For Research Use Only
Not for use in diagnostic or therapeutic procedures.

Concentration 1 mg/ml Quantity 0.1 mg Volume 0.1 ml Immunogen Mouse T cell... more
CyFlow™ CD28 Low Endotoxin
Concentration1 mg/ml
Quantity0.1 mg
Volume0.1 ml
ImmunogenMouse T cell lymphoma EL-4 cells
SpecifityThe Syrian hamster monoclonal antibody 37.51 recognizes extracellular domain of mouse CD28 costimulatory receptor, a 45 kDa homodimeric protein expressed by thymocytes, mature T cells and NK cells.
Background InformationCD28 is the critical T cell costimulatory receptor which provides to the cell the important second activation signal by binding CD80 and CD86 that are expressed by antigen presenting cells. Besides its costimulation role CD28 functions in preventing T cells from 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 α/β and γ/δ TCR. The level of CD28 on mature CD4+ and CD8+ α/β TCR+ thymocytes is two- to fourfold lower than on the immature cells.
Storage BufferThe reagent is provided in azide-free phosphate buffered saline (PBS) solution, pH ≈7.4; 0.2 µm filter sterilized. Endotoxin level is less than 0.01 EU/µg of the protein, as determined by the LAL test.
StorageAvoid prolonged exposure to light. Store in the dark at 2-8°C. Do not freeze.
StabilityDo not use after expiration date stamped on vial label.

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