APC/Cyanine7 anti-human CD28 Antibody

Pricing & Availability
Clone
CD28.2 (See other available formats)
Workshop
V-CD28.05
Other Names
T44, Tp44
Isotype
Mouse IgG1, κ
Ave. Rating
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Product Citations
publications
Human peripheral blood lymphocytes were stained with True-Stain Monocyte Blocker™, CD3 PE and CD28 (clone CD28.2) APC/Cyanine7 (left) or mouse IgG1, κ APC/Cyanine7 isotype control (right).
  • Human peripheral blood lymphocytes were stained with True-Stain Monocyte Blocker™, CD3 PE and CD28 (clone CD28.2) APC/Cyanine7 (left) or mouse IgG1, κ APC/Cyanine7 isotype control (right).
Cat # Size Price Quantity Avail. Save
302965 25 tests £81
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302966 100 tests £192
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Description

CD28 is a 44 kD disulfide-linked homodimeric type I glycoprotein. It is a member of the immunoglobulin superfamily and is also known as T44 or Tp44. CD28 is expressed on most T lineage cells, NK cell subsets, and plasma cells. CD28 binds both CD80 and CD86 using a highly conserved motif MYPPY in the CDR3-like loop. CD28 is considered a major co-stimulatory molecule, inducing T lymphocyte activation and IL-2 synthesis, and preventing cell death. In vitro studies indicate that ligation of CD28 on T cells by CD80 and CD86 on antigen presenting cells provides a costimulatory signal required for T cell activation and proliferation.

Product Details
Technical Data Sheet (pdf)

Product Details

Reactivity
Human, Baboon, Capuchin Monkey, Chimpanzee, Cynomolgus, Pigtailed Macaque, Rhesus, Sooty Mangabey, Squirrel Monkey
Antibody Type
Monoclonal
Host Species
Mouse
Formulation
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and 0.2% (w/v) BSA (origin USA).
Preparation
The antibody was purified by affinity chromatography and conjugated with APC/Cyanine7 under optimal conditions. The solution is free of unconjugated APC/Cyanine7 and unconjugated antibody.
Concentration
Lot-specific (please contact technical support for concentration and total µg amount, or use our Lookup tool if you have a lot number.)
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
Application

FC - Quality tested

Recommended Usage

Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is 5 µl per million cells in 100 µl staining volume or 5 µl per 100 µl of whole blood.

Excitation Laser
Red Laser (633 nm)
Application Notes

Additional reported applications (for the relevant formats) include: immunoprecipitation, immunohistochemical staining of acetone-fixed frozen tissue sections4, and in vitro T cell costimulation5-8. This clone was tested in-house and does not work on formalin fixed paraffin-embedded (FFPE) tissue. The CD28.2 antibody co-stimulates T cell proliferation and cytokine production in the presence of suboptimal amounts of anti-CD3 antibody. The LEAF™ purified antibody (Endotoxin <0.1 EU/μg, Azide-Free, 0.2 μm filtered) is recommended for functional assays (Cat. No. 302914). For highly sensitive assays, we recommend Ultra-LEAF™ purified antibody (Cat. No. 302934) with a lower endotoxin limit than standard LEAF™ purified antibodies (Endotoxin <0.01 EU/µg).

Application References

(PubMed link indicates BioLegend citation)
  1. Schlossman S, et al. Eds. 1995. Leucocyte Typing V. Oxford University Press. New York.
  2. Nunes J, et al. 1993. Biochem. J. 293:835.
  3. Calea-Lauri J, et al. 1999. J. Immunol. 163:62.
  4. Tazi A, et al. 1999. J. Immunol. 163:3511. (IHC)
  5. Marti F, et al. 2001. J. Immunol. 166:197. (Costim)
  6. Jeong SH, et al. 2004. J. Virol. 78:6995. (Costim)
  7. Rivollier A, et al. 2004. Blood 104:4029. (Costim)
  8. Scharschmidt E, et al. 2004. Mol. Cell Biol. 24:3860. (Costim)
  9. Sheng W, et al. 2007.Elsevier 580:6819. PubMed
  10. Mitsuhashi M. 2007. Clin Chem.53:148. PubMed
  11. Ye Z, et al. 2008. Infect. Immun. 76:2541. PubMed
  12. Magatti M, et al. 2008. Stem Cells 26:182. (FA) PubMed
  13. Yoshino N, et al. 2008. Exp. Anim. (Tokyo) 49:97. (FC)
  14. Berg M, et al. 2008. J Leukoc Biol. 83:853. (IP) PubMed
  15. Rout N, et al. 2010. PLoS One 5:e9787. (FC)
  16. Leonard JA, et al. 2011. J. Virol. 85:6867. PubMed
  17. Nomura T, et al. 2012. J. Virol. 86:6481. PubMed

Antigen Details

Structure
Ig superfamily, type I transmembrane glycoprotein, homodimer, 44 kD
Distribution

Mature T cells, thymocytes, NK cell subsets, plasma cells, EBV-positive B cells

Function
T cell costimulation
Ligand Receptor
CD80, CD86
Cell Type
B cells, NK cells, Plasma cells, T cells, Thymocytes, Tregs
Biology Area
Immunology
Molecular Family
CD Molecules
Antigen References

1. Schlossman S, et al. Eds. 1995. Leucocyte Typing V. Oxford University Press. New York.
2. June CH, et al. 1994. Immunol. Today 15:321.
3. Linskey PS, et al. 1993. Annu. Rev. Immunol. 11:191.

Gene ID
940 View all products for this Gene ID
UniProt
View information about CD28 on UniProt.org

Related FAQs

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Go To Top Version: 1    Revision Date: 01/18/2019

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This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
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