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CD28 Antibody, Mouse MAb

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Human CD28 Antibody Product Information
Immunogen:Recombinant Human CD28 protein (Catalog#11524-H08H)
Clone ID:9H6E2
Ig Type:Mouse IgG1
Formulation:0.2 μm filtered solution in PBS with 5% trehalose
Preparation:This antibody was produced from a hybridoma resulting from the fusion of a mouse myeloma with B cells obtained from a mouse immunized with purified, recombinant Human CD28 (rh CD28; Catalog#11524-H08H; P10747-1; Met 1-Pro 152). The IgG fraction of the cell culture supernatant was purified by Protein A affinity chromatography.
Human CD28 Antibody Usage Guide
Specificity:Human CD28
No cross-reactivity in ELISA with
Mouse CD28
Human CTLA4
Mouse CTLA4
Human B7-1
Human B7-2
Mouse B7-2
Human β-NGF
Human cell lysate (293 cell line)

ELISA: 0.5-1 μg/mL

This antibody can be used at 0.5-1 μg/mL with the appropriate secondary reagents to detect Human CD28. The detection limit for Human CD28 is approximately 0.039 ng/well.

Storage:This antibody can be stored at 2℃-8℃ for one month without detectable loss of activity. Antibody products are stable for twelve months from date of receipt when stored at -20℃ to -80℃. Preservative-Free.
Sodium azide is recommended to avoid contamination (final concentration 0.05%-0.1%). It is toxic to cells and should be disposed of properly. Avoid repeated freeze-thaw cycles.
Other CD28 Antibody Products
CD28 Background

CD28 (Cluster of Differentiation 28) is a disulphide-bonded glycoprotein belonging to the immunoglobulin (Ig) superfamily, and structurally consists of a single Ig V-like extracellular domain, a transmembrane domain and an intracellular domain. Mouse CD28 is constitutively expressed on the surface of all murine T cells and on developing thymocytes as disulfide-linked homodimers or as monomers. CD28 can binds the B7-1 and B7-2 ligand, and together perform important functions in the T and B cell response pathways. B7/CD28 family members, which can augment or antagonize T-cell receptor signaling, in the regulation of central and peripheral T-cell tolerance. CD28 is thus involved in T-cell activation, the induction of cell proliferation and cytokine production and promotion of T-cell survival.

Human CD28 References
  • Keir ME, et al. (2005) The B7/CD28 costimulatory family in autoimmunity. Immunol Rev. 204: 128-43.
  • Sansom DM, et al. (2006) The role of CD28 and cytotoxic T-lymphocyte antigen-4 (CTLA-4) in regulatory T-cell biology. Immunol Rev. 212: 131-48.
  • Bjrgo E, et al. (2010) Novel mechanism of signaling by CD28. Immunol Lett. 129(1): 1-6.
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